Plain answers, checked against the source.

Receipts, records, mileage and running more than one business, in Canada and the United States. Every figure links to the CRA or IRS page it came from, with the date we checked it.

More than one business

Can you use one card for two businesses?

What is allowed, what it creates between the businesses, and how to split the charges so year end is not a guessing game.

A sole proprietorship and a corporation at the same time

Yes, you can. What each one files, how the Business Number and GST/HST work, and how meals are treated differently.

Receipts and records

CRA receipt requirements

What a receipt must show at under $100, $100 to $499.99 and $500 or more, with a checker for any receipt.

How long to keep receipts

Six years for the CRA, three to seven for the IRS, and when the clock actually starts. With a keep-until calculator.

Driving

CRA mileage rate 2026

What the 73 and 67 cent rates are for, why a self-employed person does not deduct them, and the IRS rates that changed in July.