Sidehub Guides

Plain-language guides for self-employed Canadians

Practical explanations of tax rules, GST/HST, expenses, and business setup — written for sole proprietors and freelancers, not accountants.

Taxes & CRA

Guides coming soon.

GST/HST 2 guides

The $30,000 GST/HST Small Supplier Threshold Explained

What the threshold is, how the four-quarter window works, when registration becomes mandatory, and why some businesses register voluntarily.

How to Register for GST/HST in Canada

Step-by-step: using CRA’s Business Registration Online, your effective date, reporting periods, and when voluntary registration makes sense.

Expenses & Deductions 1 guide

Self-Employed Tax Deductions in Canada: What You Can Actually Claim

Every T2125 expense category explained — what qualifies in full, which three deductions trip people up, and the receipt rules that determine whether a claim survives audit.

Income & Rates

Guides coming soon.

Business Setup

Guides coming soon.