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What's Tax Form T2125 & How to Fill it Out

Written by Stephen Hoenig
Reviewed by Victor Ko
When it comes to tax time, it can be confusing which forms you need to file in order to get your taxes completed. This has a lot to do with the fact that everyone's financial situation is different, so no two tax returns are the same.
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    When you’re filing your tax return as a self-employed individual, the process is much different than that for those who are traditionally employed. This is because you don’t pay taxes throughout the year and have to pay your taxes by the due date during tax season. While this can be difficult to calculate, form T2125 can help you calculate your net business income.

    Where to find Form T2125?

    If you’re self-employed, then your taxes are a little more tedious than for those who are employed. This is because your taxes aren’t paid throughout the year, so you have to claim how much self-employment income you earned as well as what expenses you incurred related to your business. This is done with form T2125 Statement of Business or Professional Activities. 

    What is form T2125? The T2125 form is a combination of the old forms T2124 Statement of Business Activities and T2032 Statement of Professional Activities. It’s used to report business or professional income expenses. However, you do have to get it first to file this form. You can do this by downloading the printable or fillable version from the CRA’s website

    How to Fill it Out

    This form can be difficult to complete. For this reason, there’s actually a guide available to help you fill it out properly. This guide is called the T4002 Self-Employed Business, Professional, Commission, Farming and Fishing Income. It helps you complete the form correctly and calculate your business income, including your total gross business income and your final net income, for the tax year.

    Depending on whether or not you earn business income, professional income, or business and professional income, you may have to fill out more than one T2125. Either way, though, when you fill out this form, you’re including all of your business income and expenses.


    When you begin to fill out this form, you do so by starting out with your identification. This is the 15-digit program account number that was given to you by the CRA (Canada Revenue Agency), also referred to as your business number. You’ll also want to include your business name. 

    You have to enter the period of time your business year covered as well as the industry code that best describes your activity. However, if your business covers more than one activity, then you choose the code that covers the main activity of the business. 

    While you’re filling out your identifying information for your business, you may also need to enter your tax shelter identification number if you have one. If you aren’t sure where to find it, it can be found on your T5013 slip if you’re in a business partnership. You can also find the partnership number on the same slip as long as you have a business owned by a partner. 

    How to Claim on T2125

    Once you’ve entered all of your identifying information, then it’s time to start claiming your income. You’ll start in part 2, which includes documenting any website or webpage income that you earn, also referred to as internet business activities.

    It’s important to note that this doesn’t just include income from items that you sell, though. It also includes income from affiliate programs, static advertisements, advertising costs and traffic programs. 

    Part 3 is where you add in your business income if you have any. There’s also a spot for gross sales, commissions and fees. These should be included whether the income you received was money or goods that have a bartering or monetary value.

    Part 3A is where you include the total with GST/HST, and part 3B is where you include any GST/HST,  provincial sales tax, returns, allowances, discounts and GST/HST adjustments. There are also some more parts that may be relevant to you that you need to fill out. 

    Professional Income

    If you don’t have business income, then you should skip this section and fill in the professional income sections. While business income and professional income are similar, professional income means that you get paid as a member of a fully recognized profession that has a governing body.

    There are many different sections to this part, and not all of them may be relative to you. You should only fill out the ones that are relative. These different sections include:

    • Professional Fees
    • Gross Business or Professional Income
    • Cost of Goods Sold and Gross Profit
    • Opening and Closing Inventory
    • Purchases During the Year
    • Direct Wage Costs
    • Subcontracts
    • Gross Profit ( Gross Income Generated)

    After this, the sections on farming income and fishing income come next. 

    T2125 Expenses

    Once you have completed the income sections of the form, then it’s time to start calculating all of the expenses, also known as business costs. Depending on the type of business expenses that you’re calculating, there are current expenses as well as capital expenses. Let’s go over the differences and how to claim expenses. 

    Current Expenses

    When it comes to current expenses, one of the defining features is that it’s an expense that recurs after a short period of time. It can also be an expense that brings something, such as a property, back to its original condition. This includes an integral part of the property, which can also be a current expense ( electrical or plumbing). 

    The cost of the expense doesn’t factor into whether or not the expense is considered current or capital. A current expense, however, is also considered for things like the upkeep of the business property as well as if a repair was made for a sale, but the repair would have had to be done anyway. 

    Capital Expenses

    Capital expenses are generally expenses that expose themselves beyond their original condition and/or give the property a lasting benefit. Also, a separate asset that can be purchased for the business is considered a capital expense. 

    While the cost of the expense usually doesn’t make a big difference, if the cost is much larger than the cost of the business property, then it’s likely, but not always, a capital expense. Plus, any repairs that are made in preparation for selling the property are also a capital expense. 

    Other Expenses That You Claim

    When it comes to expenses, there are actually quite a few deductible expenses that you can claim on your taxes as a self-employed business owner. These include:

    • Net Income Loss Before Adjustments
    • Advertising
    • Meals and Entertainment
    • Bad Debts
    • Insurance
    • Interest and Bank Charges
    • Business Taxes, Licenses and Memberships
    • Office Expenses and Home Office Expenses
    • Office Stationary and Supplies
    • Professional Fees
    • Management and Administration Fees
    • Rental Costs and Rental Income
    • Repairs and Maintenance Costs
    • Salary, Benefits and Wages Paid
    • Crew Shares
    • Property Taxes
    • Travel Expenses
    • Utilities
    • Fuel Costs
    • Motor Vehicle Expenses
    • Capital Cost Allowance
    • Business Use of Vehicle (includes car insurance)
    • General Operating Expenses (Operating Costs)
    • Mortgage interest
    • If you own equipment for the business
    • Net Partnership Income
    • Net Partnership Income Loss

    Depending on your profession, there could be other business expenses that you could claim as well. If you’re a fisherman or a farmer, there are specific expenses that you’re allowed to claim as well. If you own multiple businesses, your expenses could also be much different for everyone. 

    The Difference Between T4A and T2125

    Whether or not you receive a T4A or have to fill out a T2125 depends on how you earn your income. With a T4A, you can claim any self-employed commissions that you’ve earned, as well as RESP educational assistance payments. Most who receive T4A’s earn regular employment income as well as commissions. However, the commissions aren’t taxed, so they will need to be calculated when you file. 

    With a T2125, this is usually filled out when you earn income from your business or a sole proprietorship. While commission earnings are also claimed on this form, your employment income is usually already calculated, so not as many calculations are needed. Also, the T2125 is a long form that ranges from 6 to 9 pages. A T4A is just one page. 


    As self-employed individuals, your taxes can be more complicated than that if you’re employed. That said, while it can be complicated, you can save a lot of money in taxes based on expenses incurred as well as deductions you can make.

    The first step, though, is filling out the T2125. This breaks down both your gross and net income. However, if you have more than one business or business and professional income, you’ll have to fill out a T2125 individually for each one. 

    When you file your income tax and benefit return, you may not even need the T2125. Why is this, though? Well, if you file your taxes with an online tax filing software, they’ll gather all of the required information for you and compile your personal income taxes to be submitted.

    Also, if you get your taxes completed by a tax professional or accountant, they will fill out any required forms for you as long as you submit the required information so they can accurately report income. 

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