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The financial KPIs worth tracking in a small Canadian business are few: gross margin, net profit margin, cash on hand in months of costs, how long customers take to pay, and the sales tax you’re holding. Together they tell you if the business makes money, if it can pay its bills and whether growth is eating your cash. Everything else is decoration until those five are steady.
Which margins should you watch?
Gross margin is profit after the direct cost of what you sell, divided by the selling price. Net profit margin is what’s left after every cost, including your own pay if you draw one, divided by sales. The first tells you if your pricing works. The second tells you if the whole business does.
Margin and markup get mixed up constantly, and it costs people money. If an item costs $60 and sells for $100, the profit margin calculator shows a 40% margin and a 66.7% markup. Price it at “40% markup” thinking it’s a 40% margin and you’ll undercharge.
| KPI | How to work it out | Example |
|---|---|---|
| Gross margin | (Price minus direct cost) / price | ($100 minus $60) / $100 = 40% |
| Markup | (Price minus cost) / cost | $40 / $60 = 66.7% |
| Net profit margin | Net profit / sales | $9,000 / $60,000 = 15% |
| Days to get paid | Average time from invoice to payment | Track it per customer |
| Cash runway | Cash on hand / monthly costs | $18,000 / $6,000 = 3 months |
What does cash flow tell you that profit doesn’t?
A profitable business can still run out of money. You invoice in March, get paid in May, and the rent came due in April. Profit is an opinion about the year. Cash is what’s in the account on Friday.
So track cash runway: cash on hand divided by a typical month of costs. Three months is a comfortable place to be, and even a ballpark figure beats guessing, and less than one means you should look at your invoices this week. There’s no official number here, and we won’t pretend there is.
Watch how long customers take to pay. If your terms are 30 days and the real average is 52, you’re lending them money for free. Sort your unpaid invoices by age once a week and phone the oldest.
Do sales tax and payroll belong in your KPIs?
Yes, as a balance to keep an eye on rather than a target. If you’re registered for GST/HST, the tax you’ve collected and not yet remitted is a debt. Ontario’s rate is 13%, so a $10,000 month of sales carries $1,300 that isn’t yours. The GST/HST calculator makes the split quick in any province. The registration line for most businesses is $30,000 in taxable sales over four consecutive calendar quarters, which is worth tracking as its own running number until you cross it.
If you have staff, the amounts you withhold and send to the CRA are a similar balance. The payroll remittance calculator gives you a monthly figure to compare against what your books show.
How do you judge a return on money you spend?
Before you buy equipment or an ad campaign, ask what comes back. The ROI calculator turns a cost and a gain into a percentage and, for longer periods, an annual rate. Use it on real numbers, like the extra sales you actually saw last time, not on hopes.
Corporate owners have another figure to watch: the tax bill. For a Canadian-controlled private corporation the federal small business rate is 9%. On $100,000 of Ontario profit our corporate tax calculator gives about $11,700 combined. That assumes a blended Ontario rate for a calendar 2026 year which we calculated ourselves and which isn’t published, so don’t lock it into a budget without checking the current CRA page.
What does one month of KPIs look like?
Here’s a made-up Ontario shop, so you can see the five numbers side by side. In a month it sells $25,000 before tax, with $15,000 of direct costs and $6,500 of overhead. Gross profit is $10,000, a 40% gross margin. After overhead, net profit is $3,500, or 14% of sales. It holds $3,250 of HST it hasn’t remitted (13% of $25,000), and its bank balance is $43,000. Monthly costs are $21,500 ($15,000 plus $6,500), so cash runway is exactly two months.
Every number on that list is simple arithmetic, and none of them needs software. The useful part is the trend. Two months of 14% followed by 9% means something changed, and you can go and find out what.
Which KPI should you fix first?
The one that’s furthest out of line. If gross margin is thin, raise prices or cut direct costs before you chase more sales, since more sales at a thin margin just means more work for the same few bucks. If margins are fine and cash is tight, look at how fast customers pay.
Mistakes when tracking KPIs
Tracking too many. Pick five and put them on one page. Comparing yourself with an industry average is the second trap, since we couldn’t find an official benchmark for margins or ratios and the ones on blogs rarely say what business they came from. Compare against your own last twelve months.
Then there’s timing. A number you look at once a year can’t change a decision. Look monthly, and write down what you’d do if it moved 10% the wrong way. If you only get a few minutes, check cash first, since that’s the number that closes a business, with margins a close second.
Where we got these figures
The formulas are standard arithmetic and are worked in our calculators. The GST/HST threshold comes from the Canada Revenue Agency‘s registration page, and corporate rates from its corporation tax rates page and Ontario page, read in September 2026.
Frequently asked questions
What is the difference between margin and markup?
Margin is profit divided by price and markup is profit divided by cost. On a $60 item sold at $100, that's 40% and 66.7%.
How much cash should a small business hold?
There's no official figure. Many owners aim for a few months of costs, which you can work out by dividing cash by a typical month's spending.
Is there a standard margin for my industry?
We couldn't find an official benchmark. Compare against your own past twelve months.
How often should I review KPIs?
Monthly is enough for most small businesses.
Does GST/HST count in revenue?
No. Tax you collect is owed to the government, so leave it out of sales when you work out margins.
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