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GST/HST Return Filing Services in Mississauga: Every Credit Claimed, Every Deadline Met

Bestax provides GST/HST return filing services for businesses in Mississauga, across Ontario and in every province.

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What GST/HST registrants need to act on right now

  • Quarterly filers: your July to September 2026 return and payment are due 31 October 2026. That is a Saturday, so the CRA accepts them on Monday 2 November 2026.

  • Annual filers with a 31 December year end: if your net tax last year was $3,000 or more, your next quarterly instalment is also due 31 October 2026 (accepted 2 November).

  • Paper returns now carry a penalty. Almost every registrant must file electronically: $100 for the first paper return, $250 for each one after that, even on a nil return.

  • Interest on overdue GST/HST is 7 percent, compounded daily, for July to September 2026. A late payment grows every single day.

  • CRA drop boxes closed permanently on 29 May 2026. Cheques and paper now go by mail or through your bank, and payments of $10,000 or more must be made electronically.

  • Nova Scotia's HST is 14 percent, not 15, since April 2025. If you sell into Nova Scotia and your invoices still say 15 percent, you are overcharging customers.

A card payment terminal printing a sales receipt

Our Strength in Numbers

  • 10+Years of Experience
  • 35+Accountants and tax professionals
  • 1000+Clients served
  • 6 daysOpen every week, Monday to Saturday, 9am to 8pm

Why Accurate GST/HST Filing Matters More Than Most Owners Realize

A GST/HST return looks like a handful of numbers on a screen. Behind them sits money you collected in trust for the CRA, money you are owed back, and a record the CRA cross-checks against your income tax return. Here is what getting it right protects.

  • Your Input Tax Credits Are Cash

    Every dollar of GST/HST you paid on business expenses comes back to you through input tax credits, but only if the invoice meets the CRA's documentation rules and the claim is made within four years. Missed credits are the most common way businesses overpay.

  • Penalties and Interest Are Avoidable

    The late filing penalty is 1 percent of the balance owing plus a further 0.25 percent for every full month late, up to 12 months, and the CRA charges 7 percent daily compounded interest on top. None of it applies to a return that is filed and paid on time.

  • Refunds Come Faster

    The CRA reviews every refund return before paying it. A return that reconciles cleanly to your books and carries proper ITC support is assessed within the CRA's four-week standard. A return that does not can sit in review for months while the CRA asks for invoices.

  • Your Return Must Match Your Income Tax Return

    Line 101 of your GST/HST return reports your sales. The CRA compares it with the revenue on your T2 or T2125. When the two do not agree, it is one of the most common triggers for a review of both returns.

  • Your Bank and Your Buyers Look at It

    Lenders, landlords and anyone buying your business will ask for your GST/HST filing history and CRA account balance. Clean, on-time filings make financing and a future sale easier.

  • The Rules Keep Changing

    Mandatory electronic filing, new ITC documentation thresholds, a 14 percent rate in Nova Scotia, new housing rebates for first-time buyers. The rules changed every year from 2024 to 2026, and several Mississauga competitor pages still quote the old ones. An accountant who files hundreds of returns a year applies the current rules automatically.

Why Bestax for GST/HST Filing in Mississauga

  1. Accountant-Led, Not Data Entry

    We do not copy the sales tax report from your software into a CRA form. We check that the report is right first: that every sale carried the correct rate, that every expense with an ITC has a valid invoice, and that the GST/HST payable account in your books agrees with what the CRA shows. Then we file.

  2. One Office for the Return, the Books and the Tax Return

    Most GST/HST problems start in the bookkeeping. When the same firm keeps your books, files your GST/HST and prepares your corporate or personal return, the numbers on all three match, and the CRA has nothing to question. Our financial reporting team keeps the books behind every return we file.

  3. Local Office, Clients Across Canada

    Our office at 1470 Hurontario Street, just south of the QEW, serves contractors, truckers, consultants, restaurants and online sellers across Mississauga and the GTA. Clients in other provinces work with us entirely online, with the same accountant and the same review process.

  4. Fixed Fee, Agreed Before We Start

    GST/HST filing in Mississauga should not come with an hourly meter running. You receive one written price per return or per year, and that is what you pay. Questions, CRA letters about returns we filed and deadline reminders are included.

  5. Senior Review on Every Return

    Nothing is filed until a second qualified accountant has checked the ITC claims, the reconciliation and the filing period. It is the step that catches the $500 invoice missing a supplier's registration number before the CRA does.

  6. Here All Year, Not Just at Month End

    Monthly, quarterly and annual filers all have deadlines in different months, and CRA letters do not wait for a convenient time. We are open Monday to Saturday, 9am to 8pm, and the accountant who filed your return is the one who answers when the CRA writes.

Our Complete HST Filing Services

Our HST filing services cover the whole cycle, from deciding whether you need to register to closing the account when you wind down.

Return Preparation, Regular or Quick Method

  • Net tax calculated from your books, not from memory: sales and GST/HST collected on line 101 and 105, input tax credits on line 108, net tax on line 109
  • Quick Method returns prepared with the correct Ontario remittance rate (8.8 percent for services, 4.4 percent for goods for resale) and the 1 percent credit on the first $30,000
  • Sales to other provinces charged at the right rate under the place of supply rules, 5, 13, 14 or 15 percent
  • Zero-rated and exempt sales separated correctly, because zero-rated sales still earn you ITCs and exempt sales do not

Input Tax Credit Review

  • Every claimed invoice checked against the CRA's three documentation tiers (under $100, $100 to $499.99, $500 and over)
  • Supplier registration numbers confirmed in the CRA's GST/HST Registry, because an invalid number means a denied credit
  • Restricted items applied correctly: 50 percent on meals and entertainment, the $39,000 ceiling on passenger vehicles bought in 2026, nothing on club memberships or personal use
  • Credits missed in earlier periods recovered on the next return, within the four-year limit

Our guide explains how input tax credits work in detail

Reconciliation Before Filing

  • GST/HST collected and paid tied back to bank deposits and the sales tax accounts in QuickBooks Online, Xero, Wave or Sage
  • Line 101 matched to the revenue that will appear on your T2 or T2125, so the two returns tell the same story
  • Prior CRA balances, instalments already paid and earlier adjustments carried into the current return

Electronic Filing and Remittance

  • Filed through CRA-certified EFILE as your authorized representative, with the confirmation number sent to you the same day
  • Payment set up through online banking, pre-authorized debit or My Payment, and electronic for anything of $10,000 or more as the law now requires
  • Instalment amounts calculated for annual filers who owed $3,000 or more last year, with reminders before each quarterly date

Filing Period Setup and Elections

  • Reporting period confirmed against your sales: annual up to $1.5 million, quarterly from $1.5 million to $6 million, monthly above $6 million
  • Elections to file more often (Form GST20) when you are regularly in a refund position and want the cash sooner
  • Quick Method election (Form GST74) when it saves you money, and the timing rules that decide when it takes effect

Registration, Changes and Closing

  • Registration once you pass $30,000 in taxable sales in a single calendar quarter or over four consecutive quarters, handled by our GST/HST registration team
  • Voluntary registration below the threshold when your ITCs are worth more than the admin
  • Final returns and account closure (Form RC145), including the deemed sale of remaining assets that catches many owners out

Corrections and Adjustments

  • Filed returns corrected through the CRA's "Adjust a return" service when sales or tax collected were wrong
  • Missed ITCs claimed on the next return rather than by amendment, which is what CRA policy expects
  • Overpaid tax recovered through the general rebate application (Form GST189) when an adjustment is not the right route

Late, Missing and Multi-Period Returns

  • Outstanding periods filed in order, with penalty and interest estimates before you commit
  • Voluntary Disclosures Program applications under the rules in force since October 2025, which can remove 100 percent of penalties when you come forward first
  • Taxpayer relief requests (Form RC4288) where illness, disaster or CRA error caused the delay

CRA Reviews, Refund Holds and Audits

  • Pre-assessment refund reviews answered with the invoices, contracts and bank records the CRA asks for, in the format it wants
  • Refund holds released by clearing the other outstanding returns (T2, payroll, earlier GST/HST periods) that caused the hold
  • Objections filed within 90 days when a reassessment is wrong, with our audit and assurance team on larger files

HST Return Filing in Ontario: Periods, Deadlines and Instalments

HST return filing in Ontario runs on the schedule the CRA assigns when you register, and the payment date is the one that costs money if missed. The table uses real dates for the periods ahead.

Your reporting periodPeriod coveredReturn and payment dueNotes
Monthly1 to 31 August 202630 September 2026Assigned above $6 million in sales, or by election
Quarterly1 July to 30 September 202631 October 2026, accepted Monday 2 NovemberAssigned between $1.5 million and $6 million
Quarterly1 October to 31 December 202631 January 2027, accepted Monday 1 February
Annual, corporationYear ending 31 December 202631 March 2027Three months after fiscal year end
Annual, sole proprietor or partnership of individualsCalendar year 2026Payment 30 April 2027, return 15 June 2027Only for individuals with a 31 December year end and business income
Annual filer instalmentsFiscal quarters of 2026 and 202731 October 2026, 31 January 2027, 30 April 2027Only if last year's net tax was $3,000 or more

Two rules that catch Ontario businesses every year

  • A nil return is still a return. No sales in the period means a return showing zeros, filed on time. Skip it and the CRA can issue a demand, a $250 penalty and an arbitrary assessment.

  • Refund returns have no late penalty, but the refund is held. If you are owed money and file late, the CRA does not penalize you. It simply keeps your refund until every other return on your account is filed.

If a due date lands on a weekend or a public holiday recognized by the CRA, the return and payment are on time if the CRA receives them the next business day.

Our calendar of all 2026 tax deadlines in Canada lists every GST/HST, payroll and income tax date in one place.

What Changed for GST/HST Registrants in 2025 and 2026 (Verified August 2026)

At least six Mississauga and Toronto competitor pages we checked still quote Nova Scotia at 15 percent, offer paper filing, or describe a semi-annual filing period that does not exist. We check this table against CRA and Department of Finance updates and revise it whenever a rule changes.

  • Electronic filing

    Mandatory for all registrants except charities and selected listed financial institutions, for reporting periods starting on or after 1 January 2024. Penalty $100 for the first paper return, $250 for each one after

    Source: CRA filing penalties, updated June 2025

  • Electronic payment

    Payments of $10,000 or more must be made electronically. The law sets a $100 penalty per failure; the CRA has said it is educating before penalizing

    Source: Excise Tax Act s. 278 and 280.12

  • Rates by province

    GST 5 percent in Alberta, BC, Manitoba, Saskatchewan, Quebec and the territories. HST 13 percent Ontario, 14 percent Nova Scotia (since 1 April 2025), 15 percent New Brunswick, Newfoundland and Labrador, PEI. Quebec QST 9.975 percent

    Source: CRA place of supply, updated July 2026

  • ITC documentation thresholds

    Under $100, $100 to $499.99, and $500 or more, each with its own required invoice details (replaced the old $30 and $150 tiers)

    Source: CRA input tax credit rules

  • Passenger vehicle ITC ceiling

    $39,000 before tax for vehicles bought in 2026 (was $38,000 in 2025), $61,000 for zero-emission vehicles

    Source: Department of Finance, January 2026

  • Access code

    Your four-digit GST/HST access code is now shown inside My Business Account, and no code is needed at all when filing through the CRA portal or a representative

    Source: CRA, October 2025

  • CRA drop boxes

    All 45 drop boxes closed permanently on 29 May 2026

    Source: CRA, March 2026

  • Late filing penalty

    1 percent of the amount owing plus 0.25 percent for each complete month late, up to 12 months. $250 for failing to file after a demand

    Source: CRA filing penalties

  • Interest

    7 percent on overdue amounts for July to September 2026, compounded daily. Refund interest 3 percent for corporations, 5 percent for others

    Source: CRA prescribed rates, Q3 2026

  • Voluntary Disclosures Program

    Since 1 October 2025: unprompted disclosures get 100 percent penalty relief and 75 percent interest relief; prompted ones up to 100 percent penalty and 25 percent interest

    Source: CRA Memorandum 16-5-1

  • First-Time Home Buyers' GST Rebate

    Up to $50,000 of GST refunded on new homes up to $1 million, phasing out at $1.5 million, for purchase agreements from 20 March 2025. Now law (Bill C-4, March 2026). Ontario adds a matching rebate of up to $80,000 of the provincial part

    Source: CRA and Ontario Budget 2026

  • Ontario new housing rebate

    Enhanced to 100 percent of the 8 percent provincial part, up to $80,000, for agreements signed 1 April 2026 to 31 March 2027

    Source: Ontario Budget 2026

  • Purpose-built rental housing

    100 percent GST rebate, extended to co-op housing and student residences by Bill C-15

    Source: Budget 2025, law March 2026

  • GST/HST holiday

    The December 2024 to February 2025 break is over and nothing new is announced

    Source: CRA

  • CRA processing

    Digital returns assessed within four weeks (95 percent target)

    Source: CRA service standards 2026-27

  • Small supplier threshold

    Unchanged at $30,000. Nothing in Budget 2025, Bill C-15, Bill C-31 or the April 2026 Spring Economic Update changes it

    Source: Department of Finance

Input Tax Credits: Where Most Returns Lose Money

Input tax credits are the GST/HST you paid on business purchases, claimed back on line 108. They are also the first thing a CRA reviewer checks, and a claim without the right paperwork is simply denied.

What the invoice must show, by amount

Invoice totalRequired details
Under $100Supplier's name, invoice date, total amount
$100 to $499.99All of the above, plus the GST/HST amount or the rate, which items are taxable, and the supplier's GST/HST registration number
$500 or moreAll of the above, plus your business name, a description of what was bought and the payment terms

The rules that trim or remove a credit

  • Meals and entertainment: only 50 percent of the tax is claimable

  • Passenger vehicles: the credit is capped at the $39,000 purchase limit for 2026, however much the vehicle cost

  • Club memberships, personal use, most exempt-supply costs: no credit at all

  • Mixed use: a phone or vehicle used partly for personal purposes earns a credit only on the business share

  • Supplier not registered: if the number on the invoice is not valid in the CRA's GST/HST Registry, there is no credit, even though you paid the tax

Two things every owner should know

  • Zero-rated is not exempt. Exports, basic groceries and most medical devices are zero-rated: you charge 0 percent but still claim ITCs on your costs. Residential rent, most health services and financial services are exempt: you charge nothing and claim nothing. Mixing them up changes your refund.

  • You have four years. A credit you missed in 2023 can still be claimed on your next return. We review the last four years of every new client's purchases for exactly this reason.

Quick Method or Regular Method? A Worked Example

The Quick Method lets eligible businesses with $400,000 or less in annual taxable sales remit a flat percentage of sales instead of tracking ITCs on every expense. It is not available to accountants, bookkeepers, lawyers or financial consultants, but it often suits IT consultants, contractors and trades with low expenses.

A calculator and a pen beside a laptop and printed charts
An Ontario consultant with $120,000 in sales and $20,000 in taxable expenses
Regular methodQuick Method
HST charged to clients$15,600$15,600
Net tax calculation$15,600 collected minus $2,600 in ITCs8.8 percent of $135,600 (sales including HST) = $11,933, minus the 1 percent credit on the first $30,000 ($300)
Net tax remitted$13,000$11,633
DifferenceAbout $1,367 less remitted under the Quick Method

The difference is kept by the business and is taxable income, and the Quick Method gives up ITCs on operating expenses (capital purchases such as equipment and vehicles can still be claimed). The higher your expenses, the less attractive it becomes. We run both calculations for every eligible client before recommending one, and the election (Form GST74) has timing rules that decide which period it starts in.

How We Reconcile Before We File

The step most filing services skip is the reason most reassessments happen. Before any return leaves our office, we check the following.

If the books themselves need work first, our backlog accounting team rebuilds them before the return is prepared, and our accounting software team fixes the tax code setup so next period's report is right from the start.

  1. The sales tax report against the bank. Total deposits for the period are compared with sales on line 101. Unexplained differences are resolved, not filed.

  2. Tax codes in your software. A zero-rated export coded as 13 percent, or a 15 percent New Brunswick sale coded as Ontario, is corrected before it becomes a CRA adjustment.

  3. The GST/HST payable account. The balance in your books must equal what the CRA account shows after last period's payment. If it does not, something was missed last time.

  4. ITC support. A sample of claimed invoices is checked against the documentation tiers, and large purchases are checked individually.

  5. Line 101 against your income tax return. The revenue that will appear on your T2 or T2125 is reconciled to the sales you reported for GST/HST across the year.

  6. Instalments and prior balances. Payments already made are credited so you never pay twice or fall short.

Late GST/HST Returns: Penalties, Interest and How We Fix Them

Falling behind on GST/HST is common, especially for owners who do their own books. The cost is exact and it stops growing the day you file.

The penalty. 1 percent of the amount owing, plus 0.25 percent of that amount for each complete month the return is late, up to 12 months. If the CRA has sent a demand to file and you still do not, a further $250 applies to that return.

A worked example. Your quarterly return shows $8,000 owing and is filed six months late. The penalty is $80 (1 percent) plus $120 (0.25 percent times six months), so $200. Interest at 7 percent, compounded daily, runs on the $8,000 from the original due date. File the same return on time and pay late instead, and the penalty disappears; only the interest remains.

If you are owed a refund, there is no penalty. The CRA holds the refund until your account is up to date, and it pays you interest once the return has been in its hands for 30 days. For many late filers with large ITCs, catching up means receiving money, not sending it.

What we do when you are behind

  1. File the oldest period first.

    The penalty is fixed on the day we file, so filing this week costs less than next month even if you cannot pay yet. If you also have income tax returns outstanding, we file those too, because the CRA holds GST/HST refunds while any return is missing.

  2. Rebuild the numbers.

    Bank statements, merchant reports, platform summaries and supplier invoices are enough to reconstruct most periods. Our backlog accounting team does this every week.

  3. Use the Voluntary Disclosures Program before the CRA writes to you.

    Under the rules since October 2025, an unprompted disclosure removes 100 percent of penalties and 75 percent of interest. Once the CRA has contacted you, relief falls to 25 percent of interest, so timing matters.

  4. Ask for relief where there is a real reason.

    Serious illness, a fire or flood, or a CRA error can support a taxpayer relief request for periods up to 10 years back.

  5. Arrange the payment.

    If you cannot pay in full, we set up a payment arrangement so collection action stops. Our guide explains every way to pay CRA tax.

Correcting a return you already filed. If sales or tax collected were wrong, we use the CRA's "Adjust a return" service, which covers periods up to four years back. If you simply missed ITCs, the CRA's own policy is to claim them on your next return rather than amend, and we do that at no extra charge for clients. For the full breakdown of penalties on every CRA return, see our guide to the penalty for late tax filing in Canada.

How It Works: From First Call to CRA Confirmation

  1. Free consultation, 20 to 30 minutes.

    By phone, video or at our Hurontario Street office. We confirm your filing period, your method and your deadlines, and give you a fixed price.

  2. Authorization and records.

    You authorize us as your representative through your CRA My Business Account (or Form AUT-01), which lets us see your filing history, balances and instalments. You give us access to your accounting software or upload your sales and purchase records through our secure portal.

  3. We reconcile, prepare and explain.

    Your return is prepared, reconciled to your books and reviewed by a senior accountant. You receive a one-page summary showing sales, tax collected, ITCs and the amount owing or refundable, and you approve it before anything is filed.

  4. We e-file and stay with you.

    The return is filed electronically the same day you approve it and the CRA confirmation number is sent to you. Your payment is scheduled, your Notice of Assessment is checked when it arrives, and any CRA letter about the return comes to us first.

  • How long does it take? With clean books, most returns are prepared, reviewed and filed within three business days of receiving your records. Multi-period catch-ups take two to four weeks depending on how much needs rebuilding.

  • Switching from another preparer or from doing it yourself? Bring your last Notice of Assessment and we check the last four years of returns for missed ITCs, wrong tax codes and unreconciled balances. Finding credits in old periods is one of the most common results of a first review.

  • Prefer to file yourself? Our step-by-step guide on how to file an HST return in Ontario walks through every CRA filing method. When the return gets complicated, or you would rather not spend month end on it, the consultation is free.

How We Price GST/HST Filing

Almost no Mississauga firm publishes how it charges for GST/HST work. Here is our approach.

One fixed written price. After the consultation you receive one price for the return, or one annual price covering every return in the year for monthly and quarterly filers. It does not change unless your business changes, and if that happens we tell you first.

Bundled with bookkeeping. Most of our clients have their GST/HST filed as part of a monthly bookkeeping package, because the return is then a by-product of books that are already reconciled, and the cost is lower than paying for the two separately.

What moves the fee

Lower feeHigher fee
Books kept current in QuickBooks, Xero, Wave or SageRecords in spreadsheets, receipts in a box, or no books at all
Annual filer with sales in one provinceMonthly filer selling into several provinces or abroad
Regular or Quick Method, no rebatesHousing rebates, non-resident rules, or platform and marketplace sales
Current periods onlyMultiple late periods or a Voluntary Disclosure
No CRA correspondence openA refund review, audit or objection in progress

What you never pay extra for. Deadline reminders, a question about whether a purchase earns an ITC, a copy of a past return, or the reply to a CRA letter about a return we filed. Those are part of the service. For typical price ranges across the GTA, read our guide on how much a tax consultant costs in Mississauga.

GST/HST Rules That Differ by Industry in Mississauga

Mississauga's economy runs on trucking, construction, the airport, restaurants and a large self-employed workforce. Each comes with GST/HST rules of its own.

  • A busy downtown Toronto intersection with pedestrians crossing

    Rideshare and Delivery Drivers

    Uber and Lyft drivers must register and charge HST from the first dollar; the $30,000 threshold does not apply to rideshare. Delivery-only drivers follow the normal threshold. Both can claim ITCs on the business share of fuel, phone and vehicle costs, and both usually benefit from the Quick Method.

  • A cargo ship docked at a Canadian port in winter

    Trucking and Logistics

    Interline freight and international freight are zero-rated, so owner-operators around Pearson often collect little HST but have large ITCs on fuel, repairs and leases. They are almost always in a refund position, which means every return is reviewed by the CRA before payment. Clean documentation is what gets the refund released on time.

  • Construction cranes silhouetted against a sunset sky

    Construction and Trades

    Subcontractors charge HST on their invoices; contractors claim it back. Holdbacks, deposits and progress billing all change the period in which tax becomes payable, and self-assessment applies when a builder occupies or rents out a home it built. Mistakes here are measured in thousands of dollars.

  • A detached family home at dusk with its porch lights on

    Real Estate and Rentals

    Residential rent is exempt, so landlords cannot claim ITCs on repairs or management fees. New builds, substantial renovations and short-term rentals through Airbnb are different: they are taxable, and the new housing and purpose-built rental rebates can return tens of thousands of dollars when claimed correctly. Read our guide to starting an Airbnb business in Canada.

  • Clothing hanging on a rail in a retail store

    E-commerce and Marketplace Sellers

    If you are registered and sell through Amazon, Shopify or Etsy, you collect and remit GST/HST yourself at the rate of the buyer's province. Marketplaces only collect on behalf of sellers who are not registered. Selling into Nova Scotia at 14 percent and PEI at 15 percent from one Ontario store is where most errors occur.

  • A coffee and a spike of paper receipts on a cafe counter

    Restaurants and Food

    Prepared food is taxed at 13 percent while basic groceries are zero-rated, and many Mississauga food businesses sell both. Tips, delivery app fees and supplier rebates each have their own treatment. Our guide to starting a restaurant in Canada covers the setup.

  • A consultant reviewing charts on a tablet

    Professional Corporations and Consultants

    IT consultants, engineers and incorporated professionals billing other businesses are the classic Quick Method candidates. Doctors, dentists and most health practitioners make exempt supplies, so they do not register and cannot claim ITCs, which changes how equipment purchases should be planned.

GST Return Filing Services in Canada: Every Province, One Accountant

Our office is in Ontario, but GST and HST are federal taxes, and we provide GST return filing services in Canada for registrants from British Columbia to Newfoundland.

Clients outside the GTA work with us entirely online: the same accountant, the same reconciliation, the same senior review.

  • Five rates, one return. Whether you charge 5 percent GST in Alberta or 15 percent HST in New Brunswick, the CRA return is the same form. What changes is the place of supply rule that decides which rate applies to each sale, and we apply it line by line.

  • Quebec is different. Revenu Québec, not the CRA, administers GST for most Quebec businesses, and QST at 9.975 percent is a separate return. Our guide to Quebec sales tax explains the combined system.

  • Selling across provinces. Services are generally taxed where the customer is, goods where they are delivered. An Ontario business with customers in four provinces may need four rates on one invoice run.

  • Non-resident and digital sellers. Foreign businesses selling digital products, goods from Canadian warehouses or short-term accommodation to Canadians have had to register since 2021, under either the simplified or the full regime. Our non-resident tax team handles those registrations and returns.

Do You Need an HST Return Accountant, or Is Software Enough?

Accounting software will produce a sales tax report and file it. Whether that is enough depends on what is in your business.

Your situationSoftware aloneHST return accountant
Service business, one province, expenses under a few hundred dollars a month, books kept currentUsually fineOptional
Sales into more than one province or outside CanadaRisky: tax codes per customer are where errors startYes
Large or regular refunds (trucking, exporters, new businesses)Risky: every refund is reviewed by the CRAYes
Quick Method decision, elections or a change of filing periodSoftware cannot adviseYes
Construction, real estate, housing rebates or self-assessmentYes, the rules are too specificYes
Late periods, a CRA letter, a refund hold or a reassessmentSoftware cannot represent youYes
Closing the business or selling itFinal return and deemed sale rules applyYes

Software files whatever is in your books. It does not know that the $600 invoice is missing a registration number, that your New Brunswick customer was charged 13 percent, or that a credit from 2023 was never claimed. An accountant who reconciles first is the cost of having someone ask those questions before the CRA does.

Our Other Services

Your GST/HST return is one piece of a compliance cycle we can run end to end.

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Frequently Asked Questions

  1. Monthly and quarterly returns, with payment, are due one month after the period ends. Annual filers have three months after their fiscal year end, except sole proprietors with a 31 December year end, who pay by 30 April and file by 15 June. If the date falls on a weekend or CRA holiday, the next business day counts. We put every date for your account in a calendar when you join.

  2. If you owe tax: 1 percent of the balance plus 0.25 percent for each full month late, up to 12 months, plus 7 percent daily compounded interest. On $8,000 filed six months late that is $200 in penalties plus interest. If you are owed a refund there is no penalty at all; the CRA simply holds the refund until you file. Either way, filing this week is cheaper than filing next month.

  3. Almost certainly not without a penalty. For reporting periods starting on or after 1 January 2024, every registrant except charities and selected financial institutions must file electronically. A paper return costs $100 the first time and $250 each time after, even if it is a nil return. As your authorized representative we file through CRA-certified EFILE.

  4. You qualify if your taxable sales, including those of associated businesses, were $400,000 or less, and you are not in an excluded profession such as accounting, law or financial consulting. It usually saves money for service businesses with low expenses and costs money for businesses with high taxable purchases. We calculate both methods for every eligible client, as in the worked example above, before recommending one.

  5. Yes. We rebuild the period from bank statements, merchant and platform reports and supplier invoices, reconcile it and file. If the books need a full cleanup first, our backlog team does that and then the return follows. Most catch-ups are complete within two to four weeks.

  6. Two common reasons. Either the refund is in a pre-assessment review, in which case the CRA wants invoices and bank records to support your ITCs, or another return on your account (a T2, a payroll return or an earlier GST/HST period) is missing and the CRA holds refunds until it arrives. We find out which, respond with the right documents or file the missing return, and follow up until the refund is released.

  7. Yes. A nil return showing zeros must be filed on time. Skipping it leads to a demand to file, a $250 penalty and sometimes an arbitrary assessment that you then have to dispute. Nil returns take us minutes and keep your account clean.

  8. Access to your accounting software or your sales and purchase records for the period, bank and merchant statements, your last GST/HST Notice of Assessment, and details of any large purchases, sales to other provinces or exports. With your CRA authorization we can see your filing history, balances and instalments ourselves.

  9. Yes. Errors in sales or tax collected are corrected through the CRA's "Adjust a return" service for periods up to four years back. Missed input tax credits are claimed on your next return, which is what the CRA's policy expects, and they can be recovered for up to four years. We also check your previous returns for credits that were never claimed.

  10. It depends on your filing frequency, how many provinces you sell into, the state of your books and whether any late periods or CRA letters are involved. You receive one fixed written price after a free consultation, and for most clients the return is bundled into a monthly bookkeeping package, which costs less than paying for the two separately. A first review routinely finds missed credits worth more than the fee.

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