You’ve filed your GST/HST return, closed out the fiscal year, and moved on. So why is there a shoebox of receipts still sitting in your closet? Because the Canada Revenue Agency doesn’t just want your numbers to add up on paper: it wants proof, and it wants that proof kept around for years after you’ve stopped thinking about it. Get the retention period wrong and you’re either hoarding a decade of paper you didn’t need, or shredding something the CRA asks for two years from now.
Here’s what the rules actually require, in plain terms, and how to set up a system so this stops being a once-a-year scramble.
Why record keeping matters more than you think
Every deduction you claim, every input tax credit you take on GST/HST, every payroll remittance: all of it rests on documentation. If the CRA reviews your return (and small businesses get reviewed more often than most owners assume) they’ll ask for the invoices, receipts, and bank records behind the numbers. No records, no proof. No proof, and a claim you made in good faith can get reversed, with interest added on top.
This isn’t really about fear of an audit. It’s about being able to answer a simple question quickly: can you show where a number came from? A business that can pull up last March’s supplier invoice in thirty seconds has a very different relationship with tax season than one still digging through email attachments.
Bank statements alone aren’t enough. The CRA wants the underlying documents, invoices, receipts, contracts, that explain what a transaction was for. A statement shows money moved. It doesn’t show why.
The six-year rule, and where it starts counting
The baseline rule for most Canadian businesses: keep your records for six years from the end of the last tax year they relate to. For a corporation, that’s six years from the end of the fiscal year the records support. For a sole proprietor filing a personal return, it’s six years from the end of the calendar year you filed for.
A practical example makes this clearer. Say your business has a December 31 year-end and you’re filing your 2025 return. Those 2025 records need to stay on file until the end of 2031, not from when you bought the item, but from when the tax year closed.
A few situations stretch that window further:
- If you file a return late, the six years starts from the date you filed, not the original due date.
- If the CRA has sent a demand to file, or you’re under objection or appeal on an assessment, hang onto everything until the matter is fully resolved, even if that pushes past six years.
- If you never filed a return for a given year at all, there’s no clock running: keep those records indefinitely until you do file.
What actually counts as a business record
The CRA’s definition is broader than most owners expect. It covers anything that supports an amount on a return or informs your obligations, including:
- Sales invoices and cash register tapes
- Purchase receipts and supplier invoices
- Bank and credit card statements
- Payroll records, including T4s and remittance confirmations
- GST/HST returns and the working papers behind them
- Contracts, leases, and loan agreements
- Vehicle logs, if you’re claiming a portion of mileage as a business expense
- Meeting minutes and the general ledger, for incorporated businesses
A scanned copy generally satisfies the requirement, as long as it’s a true, legible copy and you can produce it if asked. Paper originals aren’t mandatory once you’ve digitized them properly. That’s good news for anyone tired of filing cabinets.
Cases where six years isn’t long enough
A handful of record types don’t follow the standard clock:
| Record type | How long to keep it |
|---|---|
| Most business records (invoices, receipts, bank statements) | 6 years from the end of the tax year |
| Corporation being dissolved | 2 years from the date of dissolution |
| Real property (land or buildings you own) | As long as you own it, plus 6 years after you sell |
| Share registers and corporate minute books | Life of the corporation, plus 2 years after dissolution |
| Return under objection or appeal | Until the matter is fully resolved |
Real property is the one that trips people up most. If you bought a commercial unit in 2018 and are still using it in 2026, the purchase records need to stick around the whole time you own it, then for another six years after you sell. That can mean a fifteen- or twenty-year retention window on a single set of documents.
Setting up a system that doesn’t rely on memory
Most owners don’t fall behind on record keeping because they’re careless. They fall behind because there’s no system, so it becomes a monthly (or yearly) catch-up job that eats an entire weekend. A few habits fix most of that:
- Photograph or scan receipts the day you get them, not the day before filing. A phone camera and a labelled folder beat a pile in the glovebox.
- Keep business and personal transactions in separate accounts. Mixing the two is the single biggest reason owners can’t quickly answer “what was this for?”
- Store digital copies in at least two places: a cloud folder and a local backup, or a bookkeeping tool that archives them for you.
- Reconcile monthly instead of annually. Small gaps are easy to fix in real time; a year-old gap is a mystery.
Name files with a consistent pattern, something like 2026-03-14_supplier-name_amount, and you’ll never lose an hour searching for one invoice again.
This is also where good bookkeeping software earns its keep. Nikmani scans and categorizes receipts automatically, tags them to the right GST/HST line, and keeps a timestamped archive tied to each transaction, so the six-year requirement takes care of itself instead of sitting on your to-do list. If you’re already sorting out what counts as deductible, our guide to business expenses you can deduct in Canada pairs well with this one, and if GST/HST filing itself still feels murky, we cover the basics in our plain-language GST/HST guide.
What actually happens if you can’t produce a record
If the CRA asks for support on a claim and you don’t have it, the outcome depends on how far it goes. Best case, they disallow that specific deduction or credit and you pay the difference, plus interest. Worse case, missing records across multiple years can trigger a broader review of your filings, and repeated gaps can look like a pattern rather than a one-off mistake.
None of this requires perfection. The CRA isn’t expecting a color-coded archive. It’s expecting that if they ask, you can produce what backs up your numbers within a reasonable time. That’s a much lower bar than most owners assume, and it’s entirely achievable with a habit built early rather than a cleanup done under deadline pressure.
Make this the year record keeping stops being a chore
Retention rules aren’t complicated once you know them: six years for most things, longer for property and corporate records, and indefinitely if a return was never filed. What costs owners time and money is the scramble to reconstruct records that were never organized in the first place, not the rule itself.
Nikmani’s Silver plan handles the receipt scanning and categorization piece automatically, so every invoice is captured, tagged, and archived the moment it comes in rather than six months later when you can’t remember what it was for. Set it up once and the record-keeping requirement becomes background noise instead of a January fire drill.