Falling behind on bookkeeping is one of the most common situations small business owners find themselves in. It rarely happens because someone is careless. It happens because the business got busy — which is usually a good sign.
The hard part is not the work itself. It is not knowing where to start. Here is the order that makes catch-up bookkeeping manageable.
1. Find out what is due first
Before touching a single transaction, list your upcoming and overdue filings:
- GST/HST returns — monthly, quarterly or annual, depending on your registration
- Payroll remittances and slips — if you have employees
- Your income tax return — T2 for a corporation, T1 for a sole proprietor
- Anything the CRA has written to you about
This tells you which period to rebuild first. If a quarterly GST/HST return is due next month, that quarter goes to the front of the line.
2. Gather statements, not receipts
People often start by digging for receipts. Start with statements instead.
Download every bank, credit card, line of credit and payment platform statement for the catch-up period. PDF or CSV both work. Statements are the backbone of the books: every transaction must eventually reconcile to them.
Receipts still matter — particularly for larger purchases and for GST/HST input tax credits — but they come second.
If you can’t find a statement, your bank can usually provide it. Make that request early; it is often the slowest step.
3. Work month by month, in order
Catch-up bookkeeping goes wrong when it is done out of sequence. Work forward one month at a time:
- Import or enter that month’s transactions
- Categorize each one
- Reconcile each account to its statement until the difference is zero
- Move to the next month
Reconciling every month — not just the year-end balance — is what catches duplicates, missing transactions and items posted to the wrong period.
4. Separate personal and business
If personal and business spending went through the same accounts, this is the time to separate them. Personal items are typically recorded as owner draws (for sole proprietors) or through the shareholder loan account (for corporations). Getting this right affects both your tax return and any amounts owed between you and your company.
5. Keep a question list
You will hit transactions you don’t recognize. Don’t stop at each one. Park them on a single list and answer them in one sitting. Most can be resolved by searching your email for the amount.
6. Then change the routine
Once you are current, the goal is never to do this again. A few habits make the difference:
- A dedicated business bank account and card
- Bank feeds connected to your accounting software
- Receipt capture by photo, at the time of purchase
- A monthly close — even a short one
When to get help
Catch-up work is a good thing to hand off if you are more than a few months behind, if a deadline is close, or if your accounting file has become hard to trust. A bookkeeper who does this regularly knows the order, and you get back to running your business.
This article is general information, not tax or accounting advice for your specific situation.