Self-Employed: The Ultimate Year-End Tax Checklist

The end of the year is fast approaching. Between holiday festivities and New Year's resolutions, a crucial task awaits every self-employed worker: closing the fiscal year.

While the tax filing deadline is typically in April (or June for the self-employed), the game is won or lost during preparation. Getting organized in December and January will save you major headaches and potentially a lot of money.

Here are the essential documents and information you need to gather right now for your accountant or your own tax filing.

1. Income Records (Sales)

This is the foundation of your return. You need a clear picture of everything that came into your accounts.

• Invoices Issued: Gather all invoices dated within the fiscal year (January 1 to December 31), regardless of whether they have been paid (if you use accrual accounting).

• Tax Slips: Watch out for T4A (Federal) and Relevé 1 (Provincial) slips if you did subcontracting work for other companies.

• Other Income: Government grants or interest income earned on your business account.

Pro Tip: Check that your invoice numbering is sequential and that there are no gaps.

2. Operating Expenses

This is where you lower your taxable income. Every expense must be justified by a supporting document (invoice or receipt). A credit card statement is rarely sufficient in the event of an audit.

Sort your receipts by category:

• Advertising & Marketing: Website hosting, business cards, Facebook/Google ads.

• Office Expenses: Stationery, ink, software, professional subscriptions.

• Meals & Entertainment: Business meals (write the client's name and the purpose of the meeting on the back of the receipt).

• Bank Charges & Interest: Fees related to your business bank account or credit card.

• Professional Insurance.

• Professional Fees: Lawyers, accountants, consultants.

3. Home Office Expenses

If your home is your principal place of business, you can deduct a portion of your household expenses. To do this, you need two key figures: the total square footage of your home and the square footage of your workspace.

Gather the total annual bills for:

• Electricity and heating (Hydro, Gas).

• Home insurance.

• Municipal and school taxes.

• Mortgage interest (ask your bank for the annual statement) OR rent paid.

• Maintenance and minor repairs.

• Internet (the business portion).

4. Vehicle Expenses (If used for work)

If you use your personal car to visit clients or make deliveries, the documentation requirements are strict.

You must provide:

• Total mileage driven in the year (check your odometer on December 31st!).

• Business mileage (kept in a precise logbook indicating date, destination, and purpose).

Then, gather all vehicle-related receipts:

• Gas/Fuel.

• Car insurance.

• Registration and licensing.

• Maintenance and repairs (oil changes, tires, etc.).

• Interest on car loans or leasing fees.

5. Capital Assets

Did you buy durable equipment this year (computers, office furniture, machinery, camera gear)?

These items are not 100% deducted in the year they are bought; they are depreciated over time. Prepare:

• The purchase invoice showing the date and amount.

• A detailed description of the item.

6. Sales Tax (GST/QST)

If you are registered for GST and QST (TPS/TVQ), ensure your tax summary matches your revenue.

• Total GST collected and paid (ITCs).

• Total QST collected and paid (ITRs).

Conclusion: Organization Pays Off

Do not hand your accountant a "shoebox" full of crumpled receipts. Not only does this increase accounting fees (because they have to sort everything), but it also increases the risk of errors or missing out on legitimate deductions.

Take a few hours before the year ends to digitize your receipts and update your Excel file or accounting software. Your future self in April will thank you!