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CRA Voluntary Disclosure for Missed GST/HST Registration

Short answer: if you should have registered for GST/HST (or charged it, or filed your returns) and didn’t, you can apply to the CRA’s Voluntary Disclosures Program (VDP) on Form RC199 before the CRA contacts you. You pay all the tax, but the CRA cancels 100% of the penalties and 75% of the interest. The program was overhauled on 1 October 2025, and you can now also apply after the CRA has written to you about the issue, for smaller relief. The alternative is to register, backdate your effective date and file the missed returns, and then pay the penalties and interest in full.

This guide is for Canadian online sellers on Shopify, WooCommerce, BigCommerce, Etsy and Amazon who passed $30,000 of sales without registering, or registered and never filed. It isn’t tax advice for your case. For anything involving tax you collected and kept, or an amount that looks large, talk to an accountant first.

Which route should I take? Find your situation

Section titled “Which route should I take? Find your situation”
Your situationBest route
You passed $30,000, never registered, and owe tax for periods that are at least one reporting period past due (a year, for an annual filer)Voluntary disclosure, or register and file on your own
You passed $30,000, never registered, and your first return is past due by less than one reporting periodRegister and file now. The VDP won’t take it yet
You’re registered but never filed returns with tax owingVoluntary disclosure
You passed $30,000 recently and the first return isn’t due yetJust register now and charge tax from your effective date. It’s not a VDP case yet
After your input tax credits (ITCs) you’d owe nothing, or the CRA would owe youRegister and file. No penalty applies, and the VDP doesn’t take refund or nil-balance returns
The CRA has sent you a letter about this issueVDP with partial relief (prompted application)
The CRA has started an audit or investigationNot available. Register and file, then ask for taxpayer relief
You charged customers GST/HST and didn’t remit itGet advice from an accountant before you do anything else

The VDP is a CRA program that gives relief from penalties and part of the interest to people who come forward on their own to fix a tax mistake or omission. It covers GST/HST along with income tax and other taxes. For GST/HST the rules are in the CRA’s Memorandum 16-5-1, and the general rules are in Information Circular IC00-1R7.

It is not a tax amnesty. The CRA’s own guidance says taxes owing still have to be paid in full. What you get is:

  • relief from the penalties that would otherwise apply, such as the late filing penalty
  • relief from part of the interest
  • no referral for criminal prosecution for the information you disclose, and no gross negligence penalties on it

For applications the CRA received on or after 1 October 2025:

  • Two tiers of relief replaced the older General and Limited programs: general relief for unprompted applications and partial relief for prompted ones. See relief levels.
  • You can now apply after the CRA has contacted you about a possible problem, such as an education letter. Before, that usually ruled you out. People under audit or investigation, and those who were egregiously non-compliant, are still restricted.
  • Form RC199 was simplified.
  • GST/HST applications cover the most recent four years of returns. Years or reporting periods in that window with no errors can be left out, though the CRA can ask for older periods.

Applications received before that date are handled under the older rules (IC00-1R6 and Memorandum 16-5).

The CRA’s GST/HST memorandum says any person can apply. You must meet all five of these:

#ConditionWhat it means for a seller
1VoluntaryYou apply before an audit or investigation has begun against you or a related person, on the information you’re disclosing. That includes investigations by other bodies like police or securities regulators
2CompleteYou include all relevant information and documents for the periods involved, and answer CRA questions promptly
3Penalties or interestThere’s an error or omission that carries penalties, interest, or both
4Past dueThe information is for a period at least one reporting period past its filing due date: a year for an annual filer, a quarter for a quarterly filer
5PaymentYou include payment of the estimated tax owing, or ask for a payment arrangement

The CRA says it typically won’t grant relief for:

  • returns that would produce a refund or no tax owing
  • applications that only claim more ITCs or rebates without any matching rise in tax you owe
  • relief on penalties or interest that have already been assessed
  • making or changing an election
  • an insolvency event in the years involved
General relief (unprompted)Partial relief (prompted)
WhenNo CRA contact about the issue. A general education letter or notice that only gives guidance doesn’t count as contactYou apply after the CRA contacted you about a specific issue, or after it already holds third-party information about you
Penalties100% cancelledUp to 100% cancelled
Interest75% cancelled25% cancelled
Prosecution referralNoNo
Gross negligence penaltiesDon’t applyDon’t apply

Interest relief covers interest that accrued in the 10 calendar years before the year you ask. For GST/HST, the CRA also has a separate wash transaction treatment: where you should have charged GST/HST to a registered business that would have claimed it all back as an ITC, eligible wash transactions get 100% relief from penalties and interest. Ask your accountant whether your wholesale sales qualify.

The practical point: you want to be on the unprompted side. Once the CRA sends a letter about the problem, you move to the 25% interest tier.

  1. Get your numbers. Work out which periods you missed, your taxable sales in each, the GST/HST or HST rate for where each order was delivered, and the GST/HST you paid on business costs. Estimates are acceptable where the records don’t exist, but be honest about which are estimates.
  2. Prepare the missed returns. The CRA wants “all necessary returns, forms and schedules needed to correct the non-compliance”, for the most recent four years of GST/HST.
  3. Complete and sign Form RC199, Voluntary Disclosures Program (VDP) Application. Name any adviser who helped create the problem. An accountant can apply for you, but both of you sign.
  4. Include payment, or a request for a payment arrangement, for the estimated tax.
  5. Submit once, one way. Online is the fastest: My Business Account, Represent a Client for an accountant, or My Account for individuals. You can also fax (1-888-452-8994) or mail it to the Voluntary Disclosures Program, 4695 Shawinigan-Sud Boulevard, Shawinigan, QC G9P 5H9.
  6. Wait for the acknowledgement letter. It gives your effective date of disclosure. If your application qualifies, relief applies up to that date. Respond to any CRA questions quickly, because an incomplete application can be refused.
  7. Get the decision. The CRA’s letter states the relief level and the periods covered, or the reason relief was refused.

Not sure yet? You can ask for a free, informal and anonymous pre-disclosure discussion using the CRA’s online callback request. It is non-binding and doesn’t guarantee relief.

If relief is refused, you can’t file an objection. You can ask for a second administrative review, apply to the Federal Court for judicial review within 30 days of the decision, or ask for taxpayer relief.

You pay the estimated tax with the application, or ask for a payment arrangement. Collections officials review those requests, and the CRA says approval is not guaranteed. So work out whether you can pay before you apply. See what to do if you can’t pay everything.

The alternative: register and file the missed returns

Section titled “The alternative: register and file the missed returns”

You don’t have to use the program. You can simply register, ask for the right effective date and file the missed returns.

  • Your effective date is the date you should have been registered. For a seller who passed $30,000, the threshold timing rules set it.
  • The online registration form won’t accept a date more than 30 days in the past. Pick a date within the last 30 days and then send the CRA a written request to backdate the registration, with a breakdown of your sales (spreadsheets or sales journals) showing when your taxable sales first passed $30,000. The CRA reviews it and tells you the decision.
  • You then file a return for every period since the effective date.
  • You pay the tax, the late filing penalty on each return with a balance owing (1% plus a quarter of 1% a month, up to 4%), and interest on everything from the original due dates, at 7% compounded daily for the quarter from 1 October to 31 December 2026. See late filing penalties and interest.
  • You can still ask for relief from penalties and interest under the taxpayer relief rules. That’s discretionary: the CRA looks for extraordinary circumstances, its own errors or inability to pay. Not realising you had to register is a hard case to win.

For a seller who owes tax and is a year or more behind, the VDP is usually the better deal, because its relief is set out in percentages and doesn’t depend on an excuse. Register and file on your own when the VDP doesn’t apply, for example when you’re not yet a period behind, the CRA has begun an audit, or you’d owe nothing.

This is the part that stings. If you were required to charge GST/HST and didn’t, the CRA’s position is that you’re still liable for it, and you report it for the period you should have charged it. You owe it whether or not customers paid it.

For an online seller:

  • It generally comes out of your margin. Your customers paid the price you showed them, and most consumer sellers can’t practically go back to thousands of past buyers for more.
  • Don’t send customers a bill without advice. Talk to an accountant first, particularly for business customers who might want an invoice to claim ITCs.
  • Fix it going forward. From your effective date onward, charge the right rate for the province of delivery. See sales tax by province. Make sure your store and marketplace accounts show your new number.

That is the strongest argument for registering at the threshold rather than late.

ITCs for past purchases lower what you owe

Section titled “ITCs for past purchases lower what you owe”

The tax you owe is not your sales times the rate. It’s your sales tax minus the input tax credits on the GST/HST you paid on business costs in the same period.

  • You claim ITCs for the periods you’re treated as registered. With a backdated effective date, the GST/HST on inventory, packaging, platform fees, shipping and other business costs from that date count.
  • Inventory and capital property on hand on the effective date can also qualify. Services and rent from before your registration don’t.
  • You need the invoices. Gather supplier invoices, Shopify and Etsy fee statements, and shipping receipts that show the GST/HST you paid.
  • Time limit: for most small sellers, four years.
  • Alone, ITCs aren’t enough for the VDP. An application that only claims more ITCs and doesn’t increase the tax you owe isn’t eligible. Claiming them against the tax you’re disclosing is fine.

Maple & Moss is a sole proprietor in Hamilton, Ontario, selling planters and candles on Shopify and Etsy. Its owner realises in November 2026 that she crossed the threshold in 2024 and should have been registered from January 1, 2025. She never registered and never charged HST. Assume she is an annual filer with a December 31 year end, and that everything is delivered to Ontario customers at 13% HST.

Her 2025 numbers

Amount
Taxable sales, 2025 (prices customers paid, with no HST added)$48,000
HST she should have charged: 13% × $48,000$6,240
Business costs, 2025 (before tax)$18,600
HST she paid on those costs: 13% × $18,600 (invoices on hand)$2,418
Net tax owing for 2025 (HST owing minus ITCs)$3,822

For this example we treat the prices customers paid as before tax, so the HST is on top. Her accountant should confirm that treatment on a real file.

The 2025 return was due April 30, 2026 (payment) and June 15, 2026 (filing). Nothing was filed. Her 2026 return isn’t due until 2027, so it isn’t late yet.

Route 1: register and file on November 30, 2026

  • Complete months late (June 15 to November 30): 5
  • Penalty: A = 1% × $3,822 = $38.22. B = 25% of A = $9.555 a month, so 5 months = $47.78. Penalty: $38.22 + $47.78 = $86.00
  • Interest: May 1 to November 30 is 214 days at 7% compounded daily: about $160
  • Total: $3,822 + $86 + $160 = about $4,068

Route 2: a VDP application on November 30, 2026? Not yet

The VDP only takes a period that is at least one reporting period past its filing due date. For an annual filer that’s a full year, so her 2025 return doesn’t qualify until June 15, 2027. The program isn’t a filing extension: an application now wouldn’t get VDP relief.

So Route 1 is her route: about $246 of penalty and interest on top of the tax. Sitting on a known problem for seven months to qualify is a gamble, not a plan: interest keeps building at 7%, and if the CRA contacts her first, her interest relief falls from 75% to 25%, or disappears if it opens an audit.

When the VDP pays off. Had she also missed 2024, that return would have been over a year past due by November 2026, so an unprompted application for it would qualify: its penalty cancelled and 75% of its interest waived. The saving grows with the amount owed and the number of years missed.

Either way, her 2026 sales are separate: she registers now, charges HST from here on, and reports the HST on her 2026 sales from January 1 on her 2026 return, on time.

  • Waiting. Once the CRA contacts you about the issue, the unprompted tier is gone. An audit ends the program as an option.
  • Applying without the money. Payment of the estimated tax, or a payment arrangement request, is a condition of the application.
  • Forgetting the ITCs. Ignoring the GST/HST on your costs means paying more than you owe.
  • Forgetting the current year. The VDP fixes the past. Register and start charging now.
  • Leaving periods out. The application must be complete. Disclose all known errors.
  • Quebec sellers using the wrong agency. Most Quebec businesses deal with Revenu Québec for GST/HST and QST, not the CRA. If that’s you, start with Revenu Québec or an accountant. See the GST/QST return guide.