Behind on Your Taxes? How to Catch Up (And What CRA Actually Does)
Behind on taxes or unfiled returns? Ottawa CPA Majdi Ibrahim explains CRA penalties, payment plans, taxpayer relief, and voluntary disclosures.
By Majdi Ibrahim, CPA | Majdi Ibrahim, CPA Professional Corporation | Ottawa, Ontario
Being behind on taxes is more common than people admit — and more manageable than most people assume when they're in the middle of it.
One year becomes two, two becomes four, and at a certain point the pile feels so large that addressing it seems harder than continuing to avoid it. That's exactly when the gap tends to widen fastest — because CRA doesn't stop charging interest, and the longer it goes, the fewer options you have.
This article is for anyone who's missed a filing deadline, has a growing balance with CRA, has received letters they haven't opened, or knows they have income that was never reported. The goal isn't to frighten — it's to give you a clear picture of what's actually happening, what CRA's process looks like, and what your options are.
At a Glance
CRA has extensive third-party information. T4s, T5s, property sales, and investment income are all reported to CRA by employers, financial institutions, and platforms — whether or not you file a return.
Interest accumulates daily. A balance owing with CRA isn't static — it grows every day you don't address it. The sooner you act, the less the total cost.
Penalties have their own structure. Late-filing penalties, repeat late-filing penalties, and gross negligence penalties are separate from interest — and some can be significant.
CRA's process escalates over time. The path from unfiled return to collections action is generally predictable — and earlier action almost always creates better options than waiting.
The Voluntary Disclosures Program can materially improve the outcome if you have unreported income, unfiled returns, or other undisclosed tax issues. Coming forward before CRA contacts you generally provides the best chance of general relief, while prompted applications may still qualify for partial relief in some cases.
For business owners, GST/HST and payroll accounts can be more urgent than personal returns. Directors can face personal liability for certain unremitted amounts.
What CRA Actually Knows
One of the most common things people say when they're behind on taxes is "CRA probably doesn't even know." In most cases, this significantly underestimates what CRA has available.
CRA receives extensive third-party information from employers, financial institutions, investment platforms, and real estate reporting — including T4s, T5s, T3s, T4As, and property disposition proceeds. This information is reported to CRA by those parties regardless of whether you file a return. In some situations, CRA can also obtain additional financial information through review, audit, or legal processes.
CRA cross-references this information against filed returns — and when returns aren't filed, CRA notices. This is part of why the strategy of "staying under the radar" tends to be much less reliable than people assume.
CRA also issues arbitrary assessments — CRA can assess tax owing when a required return is not filed, using information it has and estimates where necessary. These assessments may not include deductions or expenses the taxpayer could have claimed, because CRA may not have the supporting facts. Filing the actual return can replace or adjust an arbitrary assessment, but CRA may review the return and the supporting claims.
How Penalties and Interest Work
Late-Filing Penalty
The late-filing penalty for personal tax returns is 5% of the balance owing at the filing deadline, plus 1% per month for up to 12 months. For example, a $10,000 balance filed six full months late would generally attract a late-filing penalty of $1,100: 5% of $10,000, plus 1% of $10,000 for each of the six full months late. Interest would also apply on the balance and the penalty.
Repeat late-filing penalty: Where the conditions apply, the repeat late-filing penalty can increase to 10% of the balance owing, plus 2% per month for up to 20 months. Repeated late filing can become significantly more expensive, and CRA's demand-to-file history can be a relevant factor. The key practical point is that this is a real risk worth taking seriously.
If there's no balance owing: The late-filing penalty is calculated based on the balance owing — so if you genuinely owe nothing, the penalty is generally zero. But "no penalty" doesn't mean "no consequences" — refunds are delayed, benefits and credits may be affected, and the filing obligation remains.
Interest
CRA charges compound daily interest on unpaid balances at the prescribed rate, which is set quarterly. Interest runs from the original payment due date — not from when CRA sends a bill. On a large, long-overdue balance, accumulated interest can represent a meaningful portion of the total amount owing.
Interest also applies to unpaid instalment amounts — if CRA expected quarterly instalments and they weren't paid, interest charges apply even if the annual return is eventually filed on time.
Gross Negligence Penalties
In cases where CRA determines a taxpayer made a false statement or omission under circumstances amounting to gross negligence, a separate penalty of 50% of the understated tax can apply. Gross negligence requires a higher threshold than an ordinary mistake — deliberate omission, repeated omissions, large amounts, or false records increase the risk of this characterization. This is separate from the late-filing penalty and much more severe.
CRA's Collections Process: What Actually Happens
CRA's collections process often escalates in stages, though it does not always follow the exact same path in every case.
Automated notices. CRA first sends automated notices — an assessment or arbitrary assessment, an overdue-return notice, or reminders about a balance.
Collections letters. If balances remain unpaid, CRA's Collections division sends increasingly direct letters, often referencing the possibility of formal collection action.
Telephone contact. CRA Collections may call directly to discuss the balance and potential payment arrangements.
Legal warning letter. Before taking formal collection action, CRA generally issues a legal warning letter. Once issued, CRA may be able to start legal action during the warning period — this is an important escalation point.
Collection action. If the balance remains unresolved, CRA has authority to garnish wages, issue requirements to pay to financial institutions, set off refunds or benefit payments against the balance, register liens or charges against property, and in serious cases, seize assets. These are real actions CRA takes — though typically after the above steps.
There's usually a meaningful window between when a problem starts and when it becomes a crisis. That window is when addressing it is cheapest and least disruptive.
Business Accounts: GST/HST and Payroll Can Be More Urgent
For business owners with separate CRA business accounts, a few important differences apply.
GST/HST and payroll source deductions have their own deadlines and consequences, separate from personal tax. Missing these can trigger penalties quickly, and CRA often pursues business account debts aggressively.
Director liability for unremitted amounts. Directors of a corporation can be held personally liable for unremitted payroll source deductions and, in some cases, unremitted GST/HST — if the corporation fails to remit. This is one of the more serious personal financial risks for incorporated business owners. If a corporation has accumulated payroll or GST/HST arrears, addressing these often takes priority over personal income tax catch-up.
Our tax deadlines article covers the standard filing and payment schedule for business accounts.
Catching Up: The Mechanics
Filing Overdue Returns
The first step in almost every catch-up situation is simply filing the outstanding returns — even if you can't pay what's owed at the moment. Filing and paying are separate obligations, and filing first stops the late-filing penalties from continuing to accumulate on those returns.
The appropriate lookback period depends on the facts. In many catch-up or relief situations, the last 10 years is a relevant reference point, but CRA can require outstanding returns that are legally required — so don't assume only 10 years matter without reviewing your specific account.
What you'll need for each outstanding year: T4s, T5s, and other income slips (many can be retrieved from CRA My Account), records of deductions, and for business or rental income — records of revenues and expenses for each year. If records are incomplete, reconstruction is possible — bank statements, invoices, and third-party records can fill gaps.
Payment Arrangements
If the total amount owing is more than you can pay at once, CRA is generally willing to set up payment arrangements. A payment arrangement may prevent or pause further collections action if CRA accepts it and the taxpayer keeps up with payments, but interest generally continues to accrue. CRA will typically expect current filings and obligations to stay up to date while the arrangement is in place.
Interest and Penalty Relief: The Taxpayer Relief Program
CRA has a formal Taxpayer Relief Program that allows it to cancel or waive interest and penalties in certain circumstances:
- Extraordinary circumstances beyond the taxpayer's control — serious illness, natural disaster, or circumstances that prevented filing or payment
- CRA error or delay — where CRA's own actions contributed to the problem
- Financial hardship — in some cases, where the payment of accumulated penalties and interest would cause significant ongoing difficulty
Important points: relief is generally available for interest and penalties, not the underlying tax. Requests are discretionary and approval is not guaranteed. There is generally a 10-year limitation period for relief requests — the 10-year clock can work differently for interest and penalties, so the years eligible for relief should be reviewed before applying.
The Voluntary Disclosures Program
The Voluntary Disclosures Program (VDP) is CRA's formal process for taxpayers to come forward and correct previously unreported income, ineligible expenses, unremitted source deductions, GST/HST issues, foreign income, T1135 filings, and other undisclosed liabilities. Under the updated rules, whether the application is unprompted or prompted affects the type of relief available, and audit or investigation status can affect eligibility.
We cover the VDP in detail in our VDP article, but the key points for context here:
What it can do: A successful VDP application can materially improve the outcome. Applications are generally assessed under one of two tracks:
- General Relief (unprompted applications): CRA may provide 100% penalty relief and up to 75% interest relief on eligible amounts
- Partial Relief (prompted applications, where CRA has already begun some form of inquiry): CRA may provide up to 100% penalty relief and 25% interest relief
Eligible VDP applications generally receive protection from criminal prosecution, and gross negligence penalties do not apply to the disclosed information.
What it doesn't do: The VDP does not eliminate the underlying tax owing. You still pay the tax — the VDP changes the penalty and interest picture, not the tax itself.
Timing matters. Under the updated VDP rules, prior CRA contact does not always automatically make VDP unavailable. Coming forward before CRA contacts you generally gives you the best chance of general relief. If CRA has already communicated about a specific compliance issue, partial relief may still be possible in some cases, but the options become narrower. If an audit or investigation has started on the issue being disclosed, VDP relief may not be available for that issue.
What About Unreported Income?
Unreported income — cash income, rental income, cryptocurrency gains, income from a side business, tips — is a distinct issue from simply filing late.
Not all unreported income means gross negligence — the standard for gross negligence is higher than an ordinary mistake. But deliberate omissions, repeated omissions, large amounts, or false records all increase the risk of gross negligence characterization and the 50% penalty that comes with it.
For taxpayers with unreported income who haven't yet been contacted by CRA about those amounts, the VDP is specifically designed for this situation. Coming forward voluntarily — even if it means paying the underlying tax — can materially improve the outcome compared to waiting.
Practical First Steps if You're Behind
Don't wait for a "perfect" moment. The most common reason catch-up situations get worse is the search for the right moment to address them — which never comes. Starting imperfectly is better than not starting.
Set up CRA My Account. If you haven't already, create a CRA My Account. From there you can see your tax account balances, download prior-year T-slips, check your RRSP room, and see CRA correspondence. Our article on how to read your Notice of Assessment also covers what to look for once you access your account.
Get a CPA involved early. Catch-up situations benefit enormously from professional help — not because they're legally complex (they often aren't), but because an experienced CPA can help prioritize, reconstruct records, communicate with CRA on your behalf, and structure a plan.
Communicate with CRA, don't avoid. If CRA has already contacted you, responding — or having your CPA respond — is almost always better than silence. CRA generally interprets non-response as non-cooperation, which tends to accelerate the escalation process.
Open CRA letters when they arrive. CRA letters have timelines — deadlines for responding, deadlines for objecting, and actions CRA will take if no response is received. Knowing what a letter says is the necessary first step. Our article on what to bring to a first CPA meeting explains what's helpful to have ready.
Ottawa & Area
Catch-up situations in Ottawa often involve federal government employees who've had career or employment changes with tax implications that weren't fully addressed — contract periods without proper source deductions, employer changes, pension adjustments, or periods of self-employment. Gatineau residents with income on both sides of the provincial border face additional complexity: both federal and Quebec provincial obligations need to be addressed, and the two systems have their own deadlines and processes. In all of these situations, the fundamentals are the same — file, communicate, and address the balance, in that order and as early as possible.
What Happens When You Bring This to Majdi Ibrahim, CPA?
A clear picture of where things actually stand. We start by helping you understand the actual scope — what years are outstanding, what CRA already has on file, and what the realistic total exposure looks like.
Prioritized catch-up filing. We work through outstanding returns systematically — reconstructing records where needed, ensuring all available deductions are claimed, and filing in an order that makes sense given your situation.
CRA communication on your behalf. Once we're authorized as your representative, we can access CRA account information, communicate with CRA, and help manage correspondence and responses — so you're not navigating the process on your own.
Assessment of penalty and interest relief options. Where Taxpayer Relief applications are appropriate, we prepare them. Where the VDP is available and relevant to your situation, we assess whether a formal application makes sense.
A realistic plan for staying current. Catching up is the first step. Building the right processes going forward — so this doesn't happen again — is equally important.
Book a consultation at www.treehousecpa.com
Frequently Asked Questions
How far back does CRA go for unfiled returns?
The appropriate lookback period depends on the facts. CRA can generally reassess a return up to 3 years after the original notice of assessment for most taxpayers, and up to 6 years in cases involving misrepresentation or fraud. For unfiled returns, CRA can issue arbitrary assessments going back many years. In many catch-up situations, the last 10 years is a practical reference point, but do not assume only 10 years matter without reviewing your specific account.
Can CRA garnish my wages or freeze my bank account?
Yes. CRA has legal authority to garnish wages, issue requirements to pay to financial institutions, set off refunds against balances, and register liens against property for unpaid tax debts. These actions are generally a last resort after multiple notices and contact attempts, but they do occur. Filing outstanding returns and establishing a payment arrangement is the most effective way to prevent collections escalation.
What if I can't afford to pay everything I owe?
Filing the returns and contacting CRA about a payment arrangement is the right path. CRA generally prefers structured repayment over continued non-compliance. A payment arrangement may pause further collections action if CRA accepts it and payments are kept up, though interest continues to accrue. CRA will typically also expect current filings and obligations to remain up to date during the arrangement.
Will I go to jail for not filing taxes?
Criminal prosecution for tax evasion is relatively rare and reserved for deliberate, large-scale schemes rather than missed filings. The vast majority of late-filing situations are resolved through penalties, interest, collections, and repayment rather than prosecution. Deliberate non-reporting or falsification of records is in a different category from simply falling behind, and the safest position is always to address the situation.
What is the Voluntary Disclosures Program and should I use it?
The VDP allows taxpayers to come forward about unreported income, unfiled returns, and other undisclosed tax matters, potentially receiving penalty relief and partial interest relief. It does not eliminate the underlying tax owing. Whether to use it depends on the specific facts, including whether CRA has already communicated with you about the issue and whether an audit or investigation has started. Prior contact may affect the level of relief available, and in some cases may make VDP unavailable for that issue. See our VDP article for full details.
I received a letter from CRA that I haven't opened. What should I do?
Open it. CRA letters are on a timeline — there are often deadlines for responding, objecting, and actions CRA will take if no response is received. Knowing what the letter says is the necessary first step. If you're unsure what it means or what to do, a CPA can review it and advise on next steps.
How long does catching up on back taxes take?
It depends on how many years are outstanding and how complete the records are. In straightforward situations with available records, a few weeks of organized effort can address several years. In more complex situations — multiple income sources, incomplete records, significant unreported amounts — it may take longer. Starting is the most important step — partial progress is better than none.
I have a corporation with overdue GST/HST or payroll remittances — is that different from personal taxes?
Yes, and it can be more urgent. Business account obligations — GST/HST, payroll source deductions — have their own deadlines and penalty structures, and CRA often pursues these aggressively. Directors can be held personally liable for certain unremitted corporate amounts. If you have outstanding business account obligations, these often take priority over personal return catch-up.
This article is provided for general informational purposes only and does not constitute personalized tax, legal, or financial advice. Tax rules and CRA processes are subject to change. Please consult a CPA for advice specific to your situation.
