Updated Checked by the Tax-Services.ca editorial team How we check
A bookkeeper keeps the record of what came in, what went out and what you owe, and every financial plan you make later stands on that record. In financial planning, the bookkeeper doesn’t forecast or advise. They make the past numbers accurate and current, so whoever does the forecasting has something solid to work from.
What does a bookkeeper actually do for your plan?
Think of the work as four jobs. Sorting every sale and expense into the right account. Matching the books to the bank each month. Tracking what customers owe you and what you owe suppliers. And keeping the tax side straight: sales tax collected, payroll held back, receipts filed.
None of that sounds like planning. But try building a budget from books that are four months behind, with bank lines nobody has matched and a pile of unpaid bills nobody has entered. All you can really do is guess, and a guess with a spreadsheet around it is still a guess.
The split with an accountant is simple enough. The bookkeeper records. The accountant interprets, files the corporate return and advises on tax. Some people do both jobs, so ask what a given person will really handle before you agree on anything. There’s no single national rule we could find about who may call themselves a bookkeeper, so check qualifications for yourself.
Which numbers do the books feed?
Several of your regular obligations come straight out of the ledger. The table shows where each figure originates and when it falls due, using the CRA’s published rules.
| Obligation | What the books supply | Timing (CRA) |
|---|---|---|
| GST/HST return | Tax collected on sales, tax paid on purchases | Monthly or quarterly filers: one month after the period ends |
| Payroll remittance | Tax, CPP and EI held back, plus your own share | Regular remitters: the 15th of the next month |
| Corporate income tax (T2) | Profit for the year | Balance due two or three months after year end, depending on the corporation |
| Record keeping | The records themselves | Six years from the end of the last tax year they relate to |
Annual GST/HST filers get three months after their fiscal year end. Quarterly reporting applies to businesses with more than $1,500,000 in taxable revenue, up to $6,000,000. Below that line, some firms can file annually, and a year is a long time for a tax bill to hide in messy books.
What does a bookkeeper’s work look like in dollars?
Take an Ontario company with $100,000 in sales for the year. The GST/HST calculator puts 13% HST on that, so $13,000 sat in your account that was never yours. Without clean books you’ll spend it, and the return will hurt.
Now the payroll. Three employees paid $2,000 every two weeks in Ontario means $1,665.14 to send the CRA on each pay date, according to the payroll remittance calculator. Of that, $469.89 is your own share of CPP and EI, on top of the wages. The real cost of that payroll is $6,469.89 each pay period, not $6,000.
Finally, profit. If the books show $300,000 of taxable income from an active business, the corporate tax calculator gives $35,088 for a small Canadian-controlled private corporation in Ontario, or 11.7%. Treat that rate with care. Ontario cut its small business rate on 1 July 2026, and the tool uses a blend for a calendar 2026 year that no government has published. A different year end changes it.
Those three figures, $13,000, $1,665.14 and $35,088, are the skeleton of a cash plan. A bookkeeper who hands them to you in October, not next April, has done the job.
How do you get more from a bookkeeper?
Send documents on a schedule. A weekly habit beats a shoebox of receipts handed over in March, after you’ve already lost half of them. Decide who pays which bills, and agree on a month end date after which the numbers are closed.
Ask for two reports every month, and ask for them before the tenth: a profit and loss statement, and a list of what customers still owe you. The first tells you if you made money. The second tells you if you can make payroll.
Then pass the month end numbers to whoever plans with you. If a gross margin looks thin, run it through the profit margin calculator. If spending looks loose, the budget calculator is a quick way to see where the money goes.
One more habit pays off fast: ask your bookkeeper to flag anything they had to guess at. A $400 deposit with no invoice, a cheque with no receipt. Ten minutes answering those questions at month end saves an hour of detective work at year end, and it keeps the plan honest.
What goes wrong with bookkeeping, and what can’t a bookkeeper fix?
Mixed personal and business spending is the classic one. It makes every report a little false, and sorting it out later costs far more than sorting it out weekly.
Others: receipts that never get photographed, cash sales that skip the ledger, and payroll remitted late because nobody watched the calendar. Late remittances draw penalties of 3% to 10% of the amount depending on how late, plus interest, as the CRA’s payroll remittance due dates page explains.
A bookkeeper also can’t decide how you pay yourself, when to incorporate or how to structure a purchase. That’s tax advice and belongs with your accountant. Nor does any calculator here replace the books. The numbers above are estimates that assume steady pay and ignore workers’ compensation and other levies.
Common questions about bookkeepers and planning
Do I need one if I use accounting software? Software does the arithmetic, but someone still has to decide which account a purchase belongs in and to match the bank. Many owners do that themselves while the business is small, and bring in a bookkeeper once the evenings start disappearing.
How often should the books be updated? Monthly is the usual minimum. If you have employees or collect GST/HST, a quick weekly check keeps remittance dates from sneaking up on you.
What should I have ready before the first meeting? Bring twelve months of bank and credit card statements, your last filed returns, a list of who you owe and who owes you, and your payroll and sales tax account details. With that, a good bookkeeper can tell you in a week or two how far behind the books really are.
Sources, and how we checked them
The filing rules, remittance dates and record keeping period come from Canada Revenue Agency pages on GST/HST, payroll remittances and corporate tax. The 2026 tax figures in the calculators were rechecked in September 2026. We didn’t find a fee level we could confirm for bookkeeping, so we give none. This site is independent and isn’t run or endorsed by any level of government.
Frequently asked questions
Does a bookkeeper do financial planning?
Not the forecasting. A bookkeeper records and reconciles the numbers that a forecast is built from.
What is the difference between a bookkeeper and an accountant?
The bookkeeper records transactions and keeps the books current. The accountant interprets them, files the corporate return and gives tax advice.
How long must I keep my business records?
The CRA says generally six years from the end of the last tax year they relate to, unless you have permission to destroy them earlier.
When is my payroll remittance due?
Regular remitters send it by the 15th day of the following month. Quarterly remitters follow other rules and need a clean compliance record.
Are there set qualifications for a bookkeeper in Canada?
We couldn't confirm a national rule, so ask about experience with payroll and HST for a business of your size.
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