T2125 Guide Canada 2026: How to Fill It, Expenses, Examples & Calculator

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Built for Canadian self-employed filers

This page is written for Canadian sole proprietors and self-employed workers who need a practical T2125 guide, a clean deduction summary, and an educational calculator before they file.

Canada tax hub

Canada-focused self-employed tax guide

Updated April 2026

Educational only, not tax advice

Includes CRA and Revenu Quebec context

Quick summary

CRA uses Form T2125 to report business or professional income and expenses for many self-employed Canadians. In plain terms, it organizes your gross income, deductible expenses, and final net income or loss before those numbers flow into your T1 return.

What it does

Reports self-employed business or professional income and matches it against deductible expenses.

Key limit

Meals and entertainment are usually only 50 percent deductible, not 100 percent.

Key record

Vehicle claims need business-use calculations and records such as receipts and a mileage log.

At a glance	What matters
CRA purpose	Form T2125 reports business or professional income and expenses for a sole proprietor or professional practice.
Main result	It helps calculate gross income and net income or loss that flows to your T1 return.
Meals rule	Meals and entertainment are usually limited to a 50% deduction.
Vehicle rule	Claim only the business-use portion and keep supporting records such as a mileage log and receipts.
Quebec note	Quebec filers may also need TP-80 for Revenu Quebec in addition to the federal T2125 workflow.

If you need the broader filing context before you work through this form, start with the self-employed tax guide and the Canada tax hub.

Who needs Form T2125?

You usually complete T2125 when you earn business or professional income as an individual and report it on your personal tax return. If you run more than one distinct business activity, CRA commonly expects a separate T2125 for each one.

Freelancers and consultants

Designers, developers, writers, coaches, and consultants usually use T2125 when they report self-employment income on a personal return.

Trades, commission earners, and service businesses

Contractors, agents, sales professionals, and local service operators often use it to report gross revenue and deductible expenses.

Ride-share, delivery, and online sellers

Platform income still counts as business income. You usually need income records, expense support, and business-use calculations for items like vehicle costs.

Professionals with a sole proprietorship

Lawyers, accountants, therapists, and other professionals often use the same form for professional income and related expenses.

Usually not a T2125 case

Employees with only T4 income normally do not use T2125, and incorporated businesses file through a corporation workflow instead. If you are unsure where you fit, the self-employed tax guide is the better first stop.

How to fill T2125 step by step

Move through the form in order. Start with the business identity details, then report income, then work through expense lines and special sections such as vehicle, home office, inventory, and sales tax notes.

1

Identification

Enter the business or professional activity name, address, industry code, fiscal period, and business number if you have one. This section frames the rest of the return, so keep the activity description consistent with your records.

2

Internet business activities

If you sell online or earn digital income, describe that activity clearly. This helps the filing stay aligned with how your business actually earns revenue.

3

Income

Report your gross business revenue before expenses. That can include client invoices, platform payouts, commissions, cash sales, and other amounts earned during the year.

4

Cost of goods sold and inventory

If you sell products, track opening inventory, purchases, and closing inventory carefully. Service-only businesses often skip this part, but sellers should not.

5

Expense lines

Enter only expenses that were incurred to earn business income and only the deductible business-use portion. Common lines include advertising, office expenses, professional fees, supplies, phone and internet, and other recurring costs.

6

Motor vehicle expenses

CRA expects vehicle claims to reflect business use only. Track total kilometres, business kilometres, and keep support for fuel, insurance, repairs, leases, or financing costs.

7

Home office expenses

If you work from home, calculate a reasonable business share of rent, utilities, maintenance, and internet. Keep measurements and backup so you can show how the claim was determined.

Equipment and capital cost allowance

Larger equipment purchases may not be treated like regular current expenses. Keep purchase dates, amounts, and business-use details.

Subcontractors and contract labour

Maintain invoices, agreements, and payment support if you pay other workers to help deliver your services.

Sales tax notes

If you deal with GST/HST or QST, keep tax collected and tax paid records separate from your base expense totals.

Income section

Start with gross income, not net income. That means fees billed to clients, commissions, platform payouts, cash sales, and other business revenue earned during the year before deducting expenses.

Match your reported totals to invoices, bank deposits, and platform summaries.
Do not rely only on slips if your full business income is larger than what appears on slips.
Separate product sales from service income if your bookkeeping does that already.

Simple income example

A freelance designer billed CAD 82,000 during the year and received CAD 79,500 by year-end, with CAD 2,500 still outstanding. The T2125 income section should reflect the revenue that belongs in the year based on your reporting method and records, not just what feels easiest to total from memory.

Expense categories

The cleanest T2125 filings come from grouping expenses before tax season starts. Use consistent categories in your bookkeeping so the year-end totals are already organized.

Category	Common examples	Practical note
Advertising	Ads, flyers, sponsorships, listing fees	Claim only amounts tied to earning business income.
Office expenses	Pens, postage, small office consumables	Separate true office expenses from larger equipment purchases.
Supplies	Materials used to provide your service or product	Keep supplier invoices and receipts.
Professional fees	Accounting, legal, bookkeeping, consulting	Keep invoices that show the business purpose.
Phone and internet	Cell phone plan, business internet share	Claim the business-use portion, not personal use.
Vehicle expenses	Fuel, insurance, maintenance, interest, leasing	Enter only the business-use amount supported by records.
Home office	Rent share, utilities, maintenance, internet share	Use a reasonable workspace calculation and keep support.
Other expenses	Bank charges, software, small recurring tools	Keep descriptions clear so the business purpose is obvious.

For a longer deduction list, use the self-employed expense list Canada guide before you finalize your totals.

Vehicle expenses

Vehicle claims are where many self-employed filers get sloppy. CRA guidance is clear on the practical point: claim business-use expenses only, and support the claim with records.

Track total kilometres for the year.
Track business kilometres separately.
Keep receipts for fuel, insurance, maintenance, licences, leases, or financing costs.
Apply the business-use percentage before you enter the expense amount.

Where to go deeper

Use the dedicated vehicle expenses guide for mileage logs and allocation examples, and the GST/QST driver calculator if you also need to organize sales-tax figures for driving income.

Meals and entertainment 50% rule

For many self-employed filers, meals and entertainment are not fully deductible. The usual working rule is that only 50 percent of eligible meal and entertainment costs can be deducted.

Example: if you spent CAD 1,200 on eligible business meals, the deductible amount is usually CAD 600, not the full CAD 1,200.

What to keep

Date and location
Receipt total
Who attended or the business purpose
Why the expense was related to earning income

Home office section

If you use part of your home to earn business income, organize the claim before tax time instead of guessing later. The usual starting point is a reasonable workspace percentage, then a reasonable business share of eligible home costs.

Measure the workspace or room share.
Track rent, utilities, maintenance, and internet support.
Keep the calculation you used, not just the final total.

Home office example

If a workspace represents 12 percent of the home used for business, start with that percentage when reviewing eligible costs. The exact claim still depends on the facts and the records you keep.

Worked examples

Example 1: service business

Gross income CAD 68,000. Advertising CAD 1,200. Office expenses CAD 650. Meals CAD 1,000, of which CAD 500 is usually deductible. Phone and internet CAD 1,100 business share. Professional fees CAD 900. Supplies CAD 1,350.

Estimated net income before other lines: CAD 62,300.

Example 2: delivery driver in Quebec

Gross income CAD 54,000. Vehicle expenses are reduced to the business-use share before entry. Phone usage and supplies are partially deductible. The filer may also need Quebec-side records for TP-80 and separate GST/QST tracking.

The key risk is overstating vehicle costs without a mileage log.

Quebec note: TP-80 may also apply

Federal self-employed filers still use T2125 for the CRA side of the return, but Quebec filers may also need TP-80 for Revenu Quebec. That means Quebec records often need to stay even cleaner if you have vehicle claims, home office amounts, or GST/HST and QST reporting in the same year.

This is one reason the GST/QST driver calculator and the Canada tax hub are useful companion resources for Quebec-based sole proprietors.

Common mistakes

Mixing personal and business expenses in the same total.
Claiming full vehicle costs instead of the business-use portion only.
Forgetting the usual 50 percent limit on meals and entertainment.
Using bank statements alone without keeping receipts and backup.

Reporting only slip income when additional invoices or platform revenue exist.
Leaving GST/HST or QST figures mixed into expense totals without a clear record trail.
Guessing the home office amount instead of keeping a calculation.
Waiting until filing week to sort a full year of deductions.

T2125 calculator

Use this calculator to estimate deductible expenses, net income, and a simple tax placeholder. It applies the usual 50 percent meals rule and assumes the vehicle amount you enter is already limited to business use.

Educational only

Inputs

Enter your T2125 numbers

Use annual totals. The meals line is reduced to 50 percent automatically, and the vehicle line should already reflect business use only.

Gross income

Advertising

Meals and entertainment

Office expenses

Vehicle expenses

Home office

Professional fees

Supplies

Phone and internet

Other expenses

Calculator guardrails

Meals and entertainment are reduced to 50 percent automatically.
Vehicle expenses should already be reduced to the business-use share.
Home office, phone, and internet entries should reflect only the business portion.

Gross income

CAD 0.00

Meals deductible

CAD 0.00

Total expenses

CAD 0.00

Net income estimate

CAD 0.00

Estimated tax placeholder

CAD 0.00

This simple placeholder equals 25 percent of the estimated net result. It is not a CRA calculation and should not be treated as tax owing.

Deduction summary

Entered vs deductible

Expense line	Entered	Deductible	Note
Advertising	CAD 0.00	CAD 0.00	Business-related advertising and promotion.
Meals and entertainment	CAD 0.00	CAD 0.00	Usually limited to 50 percent.
Office expenses	CAD 0.00	CAD 0.00	Office supplies and small recurring office costs.
Vehicle expenses	CAD 0.00	CAD 0.00	Enter the business-use amount only.
Home office	CAD 0.00	CAD 0.00	Use a reasonable workspace calculation.
Professional fees	CAD 0.00	CAD 0.00	Accounting, legal, and related professional costs.
Supplies	CAD 0.00	CAD 0.00	Materials and consumables used in the business.
Phone and internet	CAD 0.00	CAD 0.00	Business-use portion only.
Other expenses	CAD 0.00	CAD 0.00	Catch-all for clear, supportable business costs.

This is an educational estimate only, not tax advice.

Use the calculator to organize your thinking before you file. Confirm the final treatment of each line with CRA guidance, Quebec rules where relevant, or a qualified tax professional.

Printable checklist

Gather these before you file so your T2125 numbers are easier to defend and easier to transfer into software or an accountant handoff.

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