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Line 15000 Explained: The Tax Guide for Reporting All Income
Line 15000, also known as Total Income, is a crucial component of your Canadian personal tax return. This line sums up all your income from various sources for the tax year before claiming any deductions.
Understanding Line 15000 is key to accurately filing your taxes, avoiding problems with the CRA, and maximizing tax credits and benefits you may be eligible for. This guide will demystify Line 15000, providing clarity on what it entails, why it matters, and how to report it correctly.
What is Line 15000 on your tax return?

Line 15000 on your personal tax return represents your total income or gross income before deductions. It combines all sources of income you received during the tax year that are subject to Canadian income tax.
Previously known as Line 150, Line 15000 was recently renamed by the Canada Revenue Agency (CRA) as part of an overhaul of the tax return to accommodate more lines.
But its function remains unchanged – to summarize your income from all taxable sources before reducing it by any deductions or credits.
Accurately calculating Line 15000 is the first step to determining your net income, taxable income, and ultimate tax liability.
It also helps establish eligibility for various tax credits and income-tested government benefits, like the Canada Child Benefit. So, getting this right matters.
What types of income are included in Line 15000?
Line 15000 encompasses many diverse sources of income, including:
Employment income
The most common component of Line 15000 is employment income, consisting of:
- Salaries, wages, bonuses, commissions, and tips
- Taxable benefits received through employment
- Honoraria and directors’ fees
- Business travel, vehicle, and housing allowances
- Sick leave payments
- Income replacement benefits
Employment income is usually reported on T4 slips issued by your employer. Make sure to gather all your T4s before filing.
Self-employment income
If you are self-employed or earn money from side gigs, the net income from these activities gets reported on Line 15000. This is calculated as your gross self-employment income minus allowable business expenses. Common self-employment incomes include:
- Sole proprietorships
- Partnerships
- Freelance or contract work
- Commission-based sales
- Gigs like ridesharing or renting out your property
Track your self-employment income and expenses throughout the year using Form T2125.
Investment income
Interest, dividends, and capital gains earned through your investments also contribute to Line 15000. This includes income earned in:
- Bank accounts
- GICs
- Bonds
- Mutual funds
- Stocks
- Rental properties
Investment income gets reported on T3 and T5 tax slips. Make sure to report all income, even if tax was withheld.
Types of Investment Income Included in Line 15000
Type | Description | Reported On |
Interest | Interest earned in bank accounts | T5 slip |
Dividends | Dividends from stocks | T5 slip |
Capital gains | Sale of investments for profit | T5008 slip |
Mutual fund income | Earnings from mutual funds | T3 slip |
RESP/RDSP income | Registered account income | T4RSP/T4RIF slips |
Foreign income | Foreign interest, dividends, pensions | T5/T3 slips |
Rental income
If you earn income by renting out a property, whether a single room or an entire apartment building, this rental income needs to be included on Line 15000.
Report your gross rental income before deducting related expenses like mortgage interest, repairs and maintenance costs.
Pension income
Any income received from pensions, such as:
- The Canada Pension Plan (CPP)
- Old Age Security (OAS)
- Quebec Pension Plan (QPP)
- Retirement pensions
Gets reported on Line 15000. The details are provided on your T4A slips.
EI and social assistance
If you received any taxable income from:
- Employment Insurance (EI)
- Social assistance payments
- Workers’ compensation benefits
You must include this on Line 15000, as detailed on your T4E slip.
Other taxable income
Additionally, any other taxable income you received, such as:
- Scholarships, bursaries, and grants
- Net federal supplements
- Financial assistance for children
- Lump-sum payments
Should be reported on Line 15000 as applicable.
Carefully review all your tax slips and documentation from the tax year to ensure no taxable income gets missed.
Why is reporting Line 15000 accurately so important?

Getting Line 15000 right on your tax return matters for several reasons:
Calculates taxes owed
Your total income amount directly affects how much tax you ultimately owe. By fully and accurately reporting all taxable income sources, you ensure you pay the correct tax amount – not too much, but also not too little.
Avoids CRA audits and penalties
If the income you report on Line 15000 doesn’t match what the CRA has on file from your tax slips, it could trigger an audit and potential reassessment. You may have to pay penalties on unpaid taxes plus accumulating interest on money owed.
Maximizes eligible credits and benefits
The amount on Line 15000 helps determine your eligibility for various tax credits and government benefits, such as the Canada Workers Benefit, the Climate Action Incentive, and provincial credits. Reporting your full income ensures you get all the credits you qualify for.
Accurate taxable income
Line 15000 feeds into the calculation of your net income and taxable income. Underreporting Line 15000 throws off the rest of your return.
Mortgage/loan assessments
Financial institutions often request your Line 15000 total income when assessing mortgage or loan applications to verify your income.
What are some common mistakes with Line 15000?
Avoid these frequent errors when filling out Line 15000:
Forgetting tax slips
A top mistake is forgetting to include all your tax slips and income documents, whether it’s a T4 from an odd job or a T5 reporting investment income. Keep an organized record of all expected slips to ensure you report all income.
Incorrect deductions
Only deduct expenses and credits you are eligible to claim based on your circumstances, income sources, and documentation. Improper deductions get flagged for review.
Self-employment income issues
Incorrectly calculating self-employment income by mixing personal and business expenses, overlooking deductions, misallocating input tax credits, or poor records can result in misstated income.
Rental income errors
When reporting your gross rental income, common errors include claiming ineligible expenses, missing receipts for expenses, or deducting CCA twice.
Investment income mix-ups
It’s easy to misreport capital gains/losses, apply dividend tax credits incorrectly, or forget to include foreign investment income, which can lead to problems.
Missed global income
With globalization, many Canadians earn foreign employment income, rental income, or investment income that must be reported in Canada due to tax treaties. Failing to report worldwide income leads to noncompliance.
How can you ensure Line 15000 is accurate?
Follow these tips for confidence in your Line 15000 amount:
Retain all income documents
Keep digital and paper copies of all tax slips, income statements, payment records, and relevant documents to reference when filing.
Review prior years’ returns
Compare incoming tax slips with previous returns to quickly flag any missing documents so you can track them down.
Verify self-employment figures
If self-employed, carefully calculate your net business income using a T2125 form, retaining all invoices and receipts for your expenses.
Talk to a tax pro
Getting professional assistance can help avoid mistakes when you have complex income sources like investments, rentals, pensions, and self-employment.
Know what counts as income
Some sources that those new to filing taxes forget include tips, foreign income, crowdfunding proceeds, and freelance work. Remember—when in doubt, report it.
Wait until you have all the slips
Don’t rush to file early in the season. Wait until you receive all expected slips by mid-April to avoid any reporting gaps.
What if you realize your Line 15000 is wrong after filing your taxes?
Despite your best efforts, you might discover an error in your Line 15000 after submitting your return to the CRA. Here’s how to correct it:
- File an Adjustment Request: You can request an adjustment through CRA My Account that allows you to update incorrect tax return information and refile for that year.
- Submit Form T1-ADJ: If you can’t use the online option, mail-in Form T1-ADJ with the revised amounts.
- Amend Prior Returns: If the error spanned multiple tax years, file adjustments for each incorrect past return.
- Request Interest/Penalty Relief: If the error resulted in insufficient tax paid, submit a Taxpayer Relief Request to ask for interest/penalty cancellation if the error was unintentional.
- Use Voluntary Disclosures: You can correct inaccurate or incomplete past returns through the Voluntary Disclosures Program to avoid penalties.
What are the implications of Line 15000 for loans, benefits, and legal matters?
Your total income amount on Line 15000 can have significance beyond just filing your taxes accurately. It may be requested and used to:
- Verify income for lenders when applying for a mortgage, line of credit, car loan, or other financing where your income level determines approval eligibility.
- Calculate spousal or child support payments in divorce and separation proceedings to determine support obligation amounts.
- Assess eligibility for government programs like Old Age Security, Guaranteed Income Supplement, and social assistance programs with income cutoffs.
- Substantiate losses claiming business or property losses require you to prove your income level to qualify.
- Comply with income disclosure laws for government officials and public employees.
The bottom line
- Line 15000/Total Income on your Canadian tax return is the sum of all your taxable income sources for the year before deductions.
- It includes employment income, self-employment income, investment earnings, rental income, and more, as reported on your tax slips.
- Accurately calculating Line 15000 ensures you pay the right tax amount and receive the credits you qualify for.
- Common mistakes include forgetting income slips, incorrectly deducting expenses, and misreporting investment or rental income.
- You can file an Adjustment Request to correct Line 15000 errors in previous returns and avoid penalties in many cases.
- Your total income amount also substantiates loan eligibility, government benefits, and legal proceedings.
Thoroughly reporting all your income sources on Line 15000 takes due diligence but avoids problems down the road. Being organized and fully understanding the wide range of taxable income types is key to getting this right.
FAQs related to Line 15000 on your tax return
Why is Line 15000 important for your taxes?
Line 15000 is important because it determines how much tax you owe. It also affects eligibility for tax credits and government benefits. An accurate Line 15000 amount ensures you pay the right tax.
What are common mistakes with reporting Line 15000?
Common Line 15000 mistakes include forgetting tax slips, taking improper deductions, errors calculating self-employment or rental income, and missing foreign or investment income.
How can you fix Line 15000 errors after filing your taxes?
To fix Line 15000 errors after filing, you can submit an Adjustment Request online, file a T1-ADJ form by mail, or use the Voluntary Disclosures program to amend previous returns.
Does Line 15000 affect getting a mortgage or loan?
Yes, lenders often request your Line 15000 total income to verify your income level when assessing mortgage or loan applications.
When should you start gathering documents for Line 15000?
Start gathering all your tax slips and income documents in early February so you have everything you need for Line 15000 organized and handy when it's time to file your return.
Can you file your taxes without having all Line 15000 slips?
It's best to wait until you have all slips and documents before filing to avoid having to amend your return later. The deadline for most slips is the end of February.
Do I have to report foreign income on Line 15000?
Yes, any foreign employment, rental, pension, or investment income has to be reported in Canada on Line 15000 due to tax treaties and residency status.
Where can you get help with reporting Line 15000?
If your Line 15000 situation is complex with investments, property or businesses, get help from an accountant or tax professional to ensure it's accurate.
Article Sources
Line 15000 Explained: The Tax Guide for Reporting All Income
Ben Nguyen