Side Hustles

Track Income, Expenses and GST/HST

Build a simple record system and understand when GST/HST may matter.

8 minutesIntermediateReviewed July 23, 2026Lesson 14 of 15

Track every sale and expense as they happen instead of rebuilding records months later.

Track gross income

Record: date, customer or platform, description, amount, payment method and invoice or reference number.

Track expenses

A business expense generally must be reasonable and connected with earning income.

Keep receipts and note the business purpose.

Do not claim every phone, vehicle, clothing or food purchase is deductible.

GST/HST basics

For most businesses, GST/HST registration generally becomes required when taxable revenues exceed the $30,000 small-supplier threshold under CRA rules.

Timing depends on whether the threshold is exceeded in one quarter or across four consecutive quarters — this is not simply after earning $30,000 in one year.

Confirm your specific situation with the CRA.

Try this

  1. 1Open the Side Hustle Tracker tool.
  2. 2Log each income entry as it happens.
  3. 3Log each business expense with a note.
  4. 4Export a CSV before filing time or for parent review.
Check your understanding

3 questions

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Questions completed: 0 of 3

Question 1 of 3
What is the main purpose of keeping receipts for business expenses?
Question 2 of 3
What best describes GST/HST registration for a very small side hustle?
Question 3 of 3
Why should side-hustle money be separated from personal spending money?
Educational content only. TaxLoophole.ca provides general educational information and does not provide personalized tax, legal or financial advice. Rules may change and may differ based on your province, territory and circumstances. Verify important decisions with the Canada Revenue Agency, another appropriate government source or a qualified professional.

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