Records foundations
What records should a Canadian self-employed person keep organized?
A plain-English tour of the record types self-employed Canadians are commonly asked for — and a calm way to keep each one current.
Educational only — this is general record-organization guidance, not tax advice. It describes habits for keeping records, not rules about how anything is taxed. Your accountant or tax advisor confirms what applies to your situation.
If you work for yourself in Canada, your records are the backbone of every conversation you'll have with your accountant. This is an organizational overview — not tax advice — of the record types self-employed people are most often asked about, and a calm way to keep each one current instead of rebuilding it under pressure.
Start with the question a reviewer will ask
Good records answer one question quickly: what happened, and can you show it? Every record type below exists to answer some version of that. You don’t need an accounting degree — you need a place for each kind of record and the habit of putting things there as they happen.
Think of it as organizing for a future review, not preparing a filing. Your accountant confirms the final treatment; your job is to make sure nothing is missing or unexplained when they look.
Income you earned
Keep a record of the money your business brought in — who paid you, when, how much, and for what. Invoices, payment confirmations, and sales records all belong here.
- What the payment was for, and which of your business activities it belongs to
- The amount received, and any GST/HST you charged on it, kept visible per entry
- The document behind it — the invoice or the payment confirmation
Expenses you paid
Record the costs of running your business as you incur them: the category, the amount, and the reason it was a business expense. The category matters because it is the language your accountant reviews in — organizing expenses the way a T2125 is structured makes their review far faster.
- The date, amount, and vendor
- A category that reflects the kind of expense it was
- A short note on the business purpose — why this was for the business
Receipts and proof
A number in a spreadsheet is a claim; the receipt is the proof behind it. Keep the paper (or the photo) attached to the record it supports, so the two never drift apart. Capture receipts while they are fresh — thermal receipts fade, and the memory of what a purchase was for fades faster.
The records that are easy to forget
Some records don’t arrive as a receipt in your hand, so they quietly go missing until year-end:
- Mileage — a trip-by-trip log of business driving, kept as you go rather than estimated in April
- Workspace — if you work from home or a dedicated space, the bills and the space details your accountant may ask about
- Capital assets — the bigger purchases (equipment, a computer, a vehicle) your accountant tracks differently from everyday expenses
You don’t decide the treatment of any of these — that is your accountant’s call. You keep the underlying record so the treatment can be worked out from something real.
GST/HST context, if it applies to you
If you collect GST/HST, keep the amounts you collect and the amounts you pay organized period by period. The goal is simply that your filing conversation starts from records instead of guesses. Whether and how any amount applies is confirmed with your accountant.
Keep separate businesses separate
If you run more than one venture, keep each activity’s records cleanly separated from the start. Blended records are painful to untangle later, and separation is exactly how each business activity is reviewed.
A calm way to keep it current
The habit that makes all of this work is small and monthly: a short review where you record what happened, attach the proof, and clear anything unexplained.
- Record income and expenses as they happen, with a category and a purpose note
- Attach the receipt or proof to the record while it is fresh
- Log mileage, workspace bills, and asset purchases when they occur, not at year-end
- Once a month, review for anything missing or unexplained and fix it then
A year of tidy months is a review for your accountant; a year of “I’ll sort it later” is a reconstruction. None of this decides your taxes — it just means that when your accountant reviews your year, they are working from organized records, and the final treatment is a conversation, not a scramble.
This guide is for organizational purposes only and is not tax advice. Final treatment of any record depends on your facts and your accountant or tax advisor's judgment.