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If you're self-employed in Canada, this guide explains what to claim, what to keep, and how to organize records for T2125. General information only, not tax advice.
If you're self-employed in Canada - freelancer, Uber driver, consultant, online seller, contractor, or small business owner - tracking expenses properly can significantly reduce your taxable income. But knowing what you can claim, how much you can deduct, and what proof the CRA requires can feel overwhelming.
This 2026 guide breaks it down clearly.
You'll learn:
Whether you're filing your own taxes or working with an accountant, this guide helps you prepare clean records so tax season becomes simple and stress-free.
Keeping accurate expense records is not just about saving money - it protects you if the CRA ever asks for supporting documentation. In Canada, you are legally required to maintain proper business records, including receipts and invoices, typically for six years.
By the end of this guide, you'll know exactly:
Let's start with the fundamentals.
General info only. Not tax advice.
Filter expense categories and keep only what applies. General info only.
Scenario
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T2125: Advertising
Costs to promote your business and attract customers.
Examples
Proof to keep
Common mistake: Claiming personal promotion or non-business campaigns.
T2125: Office expenses
Consumable items used for day-to-day business tasks.
Examples
Proof to keep
Common mistake: Claiming personal household items.
T2125: Office expenses
Apps and services used to operate your business.
Examples
Proof to keep
Common mistake: Including personal entertainment subscriptions.
T2125: Telephone and utilities
Business-use portion of phone, data, and internet service.
Examples
Proof to keep
Common mistake: Claiming the full personal plan.
T2125: Professional fees
Fees for professional services that support your business.
Examples
Proof to keep
Common mistake: Claiming personal legal expenses.
T2125: Interest and bank charges
Business bank charges and interest related to business borrowing.
Examples
Proof to keep
Common mistake: Claiming personal banking fees.
T2125: Insurance
Business-related insurance premiums.
Examples
Proof to keep
Common mistake: Claiming personal-only insurance.
T2125: Rent
Costs for a dedicated business workspace or coworking.
Examples
Proof to keep
Common mistake: Claiming personal rent not used for business.
T2125: Utilities
Business-use portion of utilities for a workspace.
Examples
Proof to keep
Common mistake: Claiming full household utilities.
T2125: Travel
Business-related travel costs.
Examples
Proof to keep
Common mistake: Claiming personal trips.
T2125: Meals and entertainment
Meals or entertainment tied to business meetings or travel.
Examples
Proof to keep
Common mistake: Claiming personal dining.
T2125: Motor vehicle expenses
Vehicle costs used to earn business income.
Examples
Proof to keep
Common mistake: Claiming 100% of costs without a logbook.
T2125: Business-use-of-home expenses
Business-use portion of workspace costs in your home.
Examples
Proof to keep
Common mistake: Claiming full household costs.
T2125: Other expenses
Training that supports your business activities.
Examples
Proof to keep
Common mistake: Claiming unrelated personal education.
T2125: Capital assets / CCA concept
Tools or equipment used to earn business income.
Examples
Proof to keep
Common mistake: Treating large purchases as regular expenses.
T2125: Delivery and freight
Costs to fulfill and deliver products.
Examples
Proof to keep
Common mistake: Mixing personal shipping costs.
Video guide
Watch a short walkthrough on how to organize expense categories and keep proof. General info only.
Expense categories walkthrough
How to organize categories and keep records for cleaner year-end filing.
External video link for article-first indexing.
Watch expense walkthroughEach category below includes examples, proof to keep, and a common mistake to avoid.
T2125: Advertising
Costs to promote your business and attract customers.
Examples
Proof to keep
Common mistake: Claiming personal promotion or non-business campaigns.
T2125: Office expenses
Consumable items used for day-to-day business tasks.
Examples
Proof to keep
Common mistake: Claiming personal household items.
T2125: Office expenses
Apps and services used to operate your business.
Examples
Proof to keep
Common mistake: Including personal entertainment subscriptions.
T2125: Telephone and utilities
Business-use portion of phone, data, and internet service.
Examples
Proof to keep
Common mistake: Claiming the full personal plan.
T2125: Professional fees
Fees for professional services that support your business.
Examples
Proof to keep
Common mistake: Claiming personal legal expenses.
T2125: Interest and bank charges
Business bank charges and interest related to business borrowing.
Examples
Proof to keep
Common mistake: Claiming personal banking fees.
T2125: Insurance
Business-related insurance premiums.
Examples
Proof to keep
Common mistake: Claiming personal-only insurance.
T2125: Rent
Costs for a dedicated business workspace or coworking.
Examples
Proof to keep
Common mistake: Claiming personal rent not used for business.
T2125: Utilities
Business-use portion of utilities for a workspace.
Examples
Proof to keep
Common mistake: Claiming full household utilities.
T2125: Travel
Business-related travel costs.
Examples
Proof to keep
Common mistake: Claiming personal trips.
T2125: Meals and entertainment
Meals or entertainment tied to business meetings or travel.
Examples
Proof to keep
Common mistake: Claiming personal dining.
T2125: Motor vehicle expenses
Vehicle costs used to earn business income.
Examples
Proof to keep
Common mistake: Claiming 100% of costs without a logbook.
T2125: Business-use-of-home expenses
Business-use portion of workspace costs in your home.
Examples
Proof to keep
Common mistake: Claiming full household costs.
T2125: Other expenses
Training that supports your business activities.
Examples
Proof to keep
Common mistake: Claiming unrelated personal education.
T2125: Capital assets / CCA concept
Tools or equipment used to earn business income.
Examples
Proof to keep
Common mistake: Treating large purchases as regular expenses.
T2125: Delivery and freight
Costs to fulfill and deliver products.
Examples
Proof to keep
Common mistake: Mixing personal shipping costs.
If you are registered for GST/HST or QST, you may be able to recover tax paid on eligible purchases using ITCs or ITRs. Confirm details with official guidance.
Official sourceSales tax basics and filing steps for Canada and Quebec.
Read the GST/HST/QST guideInstallments explained with planning tips and a risk checker.
Read the installments guidePlanning-focused guide to CPP/QPP basics and cash flow.
Read the CPP/QPP guideBusiness-use rules, mileage logs, and proof to keep.
Read the vehicle guideStructured answers: summary, actions, tools, citations.
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