Understanding Your T4 and T5 Tax Slips

What Are T4 and T5 Tax Slips?

Tax slips are official documents issued by employers, financial institutions, and other organizations to report income paid to individuals during the tax year. In Canada, the two most common tax slips are the T4 Statement of Remuneration Paid and the T5 Statement of Investment Income. These documents are crucial for accurately completing your annual income tax return and ensuring compliance with the Canada Revenue Agency (CRA) regulations for the 2025 tax year.

The T4 slip is primarily associated with employment income and is issued by employers to report wages, salaries, bonuses, commissions, and various taxable benefits provided to employees. Every Canadian who receives employment income will receive a T4 slip from their employer. The T5 slip, on the other hand, reports investment income including interest from savings accounts, dividends from stocks, and other investment returns. Financial institutions such as banks, credit unions, and investment firms issue T5 slips to account holders who have earned investment income above certain thresholds during 2025.

Understanding these tax slips is essential because they form the foundation of your tax return. The information contained in these slips must be accurately transferred to your tax return, and any discrepancies can result in reassessments, penalties, or missed opportunities for deductions and credits. The CRA receives copies of all T4 and T5 slips issued, so they already know what income you should be reporting. Failing to report this income or reporting it incorrectly can trigger audits and result in significant consequences.

Complete T4 Slip Breakdown

The T4 Statement of Remuneration Paid is one of the most important tax documents you'll receive as an employed Canadian. This slip provides a comprehensive summary of your employment income and deductions for the 2025 calendar year. Understanding each box on your T4 slip is crucial for accurate tax filing in 2026 and identifying potential tax savings opportunities.

Essential T4 Box Explanations

Important T4 Considerations for 2026

• Multiple T4 Slips: If you had multiple employers during 2025, you'll receive a separate T4 from each employer. All must be included on your 2026 tax return.
• Taxable Benefits: Box 14 includes taxable benefits such as employer-provided vehicles, group life insurance premiums over $25,000, and certain employer-paid benefits.
• Stock Options: Box 38 and 39 report employment income from exercising stock options, which has special tax treatment under current regulations.
• Other Income: Box 40 reports other taxable allowances and benefits including tips, gratuities, and director's fees earned in 2025.
• Employment Expenses: Some employees may have expenses in Box 43 (such as transport employees or salespeople) which can be used to claim employment expense deductions.

The T4 slip also contains important provincial and territorial information in boxes 78-87, which report employment income and tax withheld specifically for your province or territory of residence during 2025. This information is crucial for calculating your provincial tax liability and credits. If you moved between provinces during 2025, you may have information in multiple provincial boxes, which requires special attention when filing your 2026 return.

Understanding your T4 is particularly important for employees who want to optimize their tax situation. For instance, if you notice that not enough tax was withheld throughout 2025 (Box 22), you may face a tax bill when filing your 2026 return. Conversely, if too much tax was withheld, you'll receive a refund. You can adjust your TD1 forms with your employer for 2026 to better match your actual tax liability and avoid surprises at tax time. This is especially relevant for those with multiple income sources or significant deductions like RRSP contributions or childcare expenses.

Complete T5 Slip Breakdown

The T5 Statement of Investment Income reports income earned from investments throughout the 2025 tax year. Unlike employment income which is reported on a T4, investment income comes from various sources including bank accounts, investment portfolios, mutual funds, bonds, and dividend-paying stocks. Financial institutions are required to issue T5 slips when investment income exceeds $50 in a calendar year, though some institutions may issue them for smaller amounts.

Understanding T5 Box Details for 2025 Tax Year

Types of Investment Income on T5 Slips

Interest Income (Boxes 13 & 14): This is the least tax-efficient form of investment income because it's fully taxable at your marginal tax rate. Interest income includes earnings from savings accounts, high-interest savings accounts (HISA), guaranteed investment certificates (GICs), bonds, and fixed-income securities earned during 2025. Even if you haven't received the interest in cash (such as with compound interest GICs), you must still report it annually on an accrual basis. This is particularly important for multi-year GICs where interest compounds but isn't paid out until maturity.

Dividend Income (Boxes 24, 25, 26): Dividends receive preferential tax treatment in Canada through the dividend tax credit system. Eligible dividends from large Canadian public corporations are grossed up by 38% but then benefit from a federal dividend tax credit of approximately 25% of the grossed-up amount (rates vary by province). Non-eligible dividends, typically from small Canadian-controlled private corporations, have a 15% gross-up with a lower dividend tax credit. This gross-up and credit system is designed to account for corporate taxes already paid and avoid double taxation on dividends received in 2025.

Foreign Investment Income: Income from foreign investments reported in Box 14 (interest) or Box 15 (dividends) is fully taxable in Canada. If foreign tax was withheld by the foreign jurisdiction during 2025 (Box 17), you may be eligible to claim a foreign tax credit on your Canadian return to avoid double taxation. The foreign tax credit is limited to the lesser of the foreign tax paid or the Canadian tax payable on the foreign income.

Understanding the different boxes on your T5 slip is crucial for tax planning in 2026 and beyond. For example, knowing that eligible dividends are taxed more favorably than interest income might influence your investment strategy for future years. Similarly, understanding that RRSP and TFSA investment income isn't reported on T5 slips (because it's either tax-deferred or tax-free) highlights the importance of utilizing these registered accounts for tax-inefficient investments like interest-bearing securities and foreign dividend-paying stocks.

Key Differences Between T4 and T5 Slips

While both T4 and T5 slips report income that must be included on your 2026 tax return, they differ significantly in their source, tax treatment, and implications for your overall tax situation. Understanding these differences is essential for accurate tax planning and optimization.

Tax Treatment Implications for 2026

The most significant difference between T4 and T5 income is how they're taxed. Employment income (T4) is considered "earned income" and is fully taxable at your marginal tax rate with no special treatment. However, you benefit from having tax withheld throughout 2025, which means you're paying your tax obligation gradually rather than facing a large bill when filing in 2026. Employment income also generates RRSP contribution room for 2026, calculated as 18% of your earned income up to the annual maximum.

Investment income (T5) has more complex tax treatment depending on the type of income. Interest income is fully taxable like employment income, but dividends from Canadian corporations benefit from the dividend tax credit, making them significantly more tax-efficient. This is why many investors in higher tax brackets prefer dividend-paying stocks over interest-bearing investments in non-registered accounts. Additionally, investment income doesn't create RRSP contribution room, which is an important consideration for retirement planning in 2026 and beyond.

When Should You Receive Your Tax Slips?

The Canada Revenue Agency sets specific deadlines for when employers and financial institutions must issue tax slips for the 2025 tax year and when they must be filed with the CRA. Understanding these timelines helps you plan your tax preparation for 2026 and know when to follow up if slips are missing.

Tax Slip Deadline Calendar for 2026 Tax Season

What to Do While Waiting for Tax Slips in February 2026

• Check Your CRA My Account: Tax slips are often available electronically before you receive paper copies in the mail. Log into your CRA My Account to view available slips starting in mid-February 2026.
• Review Last Year's Pay Stubs: Your final pay stub of December 2025 often contains year-to-date totals that match what will appear on your T4. This can help you verify accuracy when you receive the slip.
• Monitor Investment Account Statements: Your December 2025 investment statements typically show the total interest and dividends earned for the year, which should match your T5.
• Organize Your Documents: Create a dedicated folder (physical or digital) for all 2025 tax documents to ensure nothing gets lost or overlooked.
• Consider Professional Help: If you have complex tax situations with multiple slips, employment changes, or investment income, consulting with a tax professional can ensure accuracy and optimize your 2026 return.

If you haven't received your T4 or T5 slips by early March 2026, you should contact your employer or financial institution directly to inquire about the status. Common reasons for delays include address changes, consent issues with electronic delivery, or administrative delays. If your employer or institution confirms they've sent the slip but you still haven't received it, they can provide you with a copy or you can access it through CRA My Account.

It's important not to delay filing your 2026 tax return simply because you're waiting for slips that should have arrived. The CRA allows you to file your return based on the information you have, and you can file an adjustment later if you receive additional slips after filing. However, it's generally better to wait until you have all your slips to avoid the need for amendments and potential delays in processing your refund.

Common Mistakes to Avoid in 2026

Even experienced taxpayers can make errors when dealing with T4 and T5 slips. Understanding common mistakes helps you avoid penalties, interest charges, and delays in receiving your refund when filing your 2026 tax return. Here are the most frequent errors and how to prevent them.

Top T4 and T5 Filing Mistakes for 2026

• Not Reporting All Income: Failing to report income from all T4 and T5 slips is the most common and serious error. The CRA receives copies of all slips issued for 2025, so they know exactly what income you should be reporting. Missing even one slip can trigger an automatic reassessment with penalties and interest.
• Transposing Numbers: Simple data entry errors when transferring information from your 2025 slips to your 2026 tax return can result in discrepancies. Always double-check that you've entered Box 14 from your T4 correctly, as well as all amounts from your T5 slips.
• Forgetting About Electronic T5s: Many people forget to check for T5 slips from online savings accounts, robo-advisors, or other digital financial services. These institutions typically only provide electronic slips, which you must actively retrieve from their portals or CRA My Account in 2026.
• Misunderstanding Dividend Gross-Up: The dividend amount you enter on your tax return is not the amount shown in Box 25 (actual eligible dividends) but rather the grossed-up amount in Box 24. This is a frequent source of confusion that can significantly affect your tax calculation.
• Not Claiming Available Deductions: Many taxpayers overlook deductions reported on their T4, such as union dues (Box 44), RPP contributions (Box 20), or employment expenses (Box 43). These directly reduce your taxable income and should never be missed.
• Ignoring Foreign Tax Paid: If your T5 shows foreign tax paid in Box 17 for 2025, you're eligible to claim a foreign tax credit. Many people skip this, effectively paying tax twice on the same income.
• Filing Before All Slips Arrive: Some eager taxpayers file their returns in February 2026 before all their slips have been issued. This often results in having to file an adjustment when late slips arrive, which delays refunds and creates extra work.
• Not Reporting Investment Income Below $50: While financial institutions aren't required to issue T5 slips for investment income under $50, you're still legally required to report all investment income earned in 2025. Check your year-end investment statements for any unreported amounts.
• Incorrectly Entering Box Numbers: Tax software requires you to enter information in specific fields corresponding to specific boxes. Putting Box 24 dividend information where Box 13 interest should go will completely change your tax calculation.
• Not Keeping Copies: After filing in 2026, you should keep copies of all tax slips for at least six years in case of an audit or reassessment. Digital copies stored securely are just as acceptable as paper copies.

How to Catch Errors Before Filing in 2026

Before submitting your 2026 tax return, take these verification steps to catch potential errors:

1. Compare Against CRA My Account: Log into your CRA My Account and compare the slips you've received with what the CRA shows in their system for 2025. This helps identify any missing slips.
2. Use Tax Software Validation: Most 2026 tax software has built-in validation that checks for common errors, missing information, or inconsistencies. Don't ignore warning messages from the software.
3. Review the Summary Page: Before filing, review the tax summary page that shows all your income sources and deductions from 2025. Verify that all employment and investment income is included.
4. Check Calculations Manually: For dividends, verify that the grossed-up amount and dividend tax credit have been calculated correctly. For interest, ensure all T5 slips from 2025 have been included.
5. Consider Professional Review: For complex tax situations or if you're unsure about anything, having a tax professional review your 2026 return before filing can save you from costly mistakes and missed opportunities.

What to Do If Your Slips Are Missing or Incorrect

Despite legal requirements, sometimes tax slips go missing or contain errors. Knowing how to handle these situations ensures you can file your 2026 return accurately and on time without penalties. The CRA has specific procedures for dealing with missing and incorrect tax slips.

Steps When T4 or T5 Slips Are Missing in 2026

1. Wait Until Early March 2026: Employers and institutions have until February 28, 2026 to issue slips for the 2025 tax year. If it's still February, give them time to meet their deadline.
2. Check CRA My Account: Log into your CRA My Account and select "Tax Slips" to see if the slip has been filed with the CRA even if you haven't received your copy. You can use the information from CRA My Account to file your 2026 return.
3. Contact the Issuer Directly: Reach out to your employer's payroll department or your financial institution's client services. They can provide a replacement copy or confirm whether the slip was issued for 2025.
4. Gather Alternative Documentation: Collect your final pay stub from December 2025 (for T4 information) or your December 2025 investment statement (for T5 information). These documents often contain the same year-to-date information that appears on the tax slip.
5. Request a Copy from CRA: If you cannot obtain a copy from the issuer and it's not available in your CRA My Account, you can request the CRA provide you with the information they have on file by calling 1-800-959-8281.
6. File Based on Available Information: If you've exhausted all options and still don't have the slip, you can file your 2026 return using the best information available. Include a letter explaining the situation and attach supporting documentation like pay stubs or investment statements.

When Your Tax Slip Contains Errors

If you notice errors on your T4 or T5 slip for the 2025 tax year, such as incorrect amounts, wrong SIN, or missing information, you should not file your 2026 return using the incorrect information. Instead, follow these steps:

• Identify the Specific Error: Clearly document what information is incorrect by comparing the slip against your pay stubs, investment statements, or other records from 2025.
• Contact the Issuer Immediately: Notify your employer or financial institution about the error as soon as you discover it. Provide them with documentation showing the correct information.
• Request an Amended Slip: The issuer is required to issue a corrected T4 or T5 slip and file it with the CRA. Ask when you can expect to receive the amended slip.
• Don't File Until Corrected: It's better to delay filing your 2026 return slightly than to file with incorrect information. The tax filing deadline for individuals is April 30, 2026 (or June 15, 2026 for self-employed), giving you time to get corrections.
• Keep Documentation: Maintain copies of all correspondence with the issuer regarding the error, as well as both the original incorrect slip and the corrected version.

If You Already Filed With Missing or Incorrect Information

If you've already filed your 2026 return and then receive additional tax slips or discover errors, you need to file an adjustment to your return. You can do this online through CRA My Account using the "Change my return" option, by completing Form T1-ADJ (T1 Adjustment Request), or by writing a letter to your tax center explaining the changes. Include supporting documentation and clearly identify that you're adjusting your 2025 tax year return filed in 2026.

The CRA generally allows you to adjust returns from the previous ten years. When you file an adjustment, the CRA will reassess your return with the corrected information. If the adjustment results in a larger refund, you'll receive the additional amount. If it results in taxes owing, you'll receive a notice of reassessment with the amount due plus interest from the original filing deadline.

How to Report T4 and T5 Income on Your Tax Return

Properly reporting your T4 and T5 income on your 2026 tax return is crucial for accurate tax calculation and compliance with CRA requirements. Whether you're filing electronically or on paper, understanding where this information goes ensures you claim all entitled credits and deductions while avoiding errors.

Reporting T4 Employment Income on Your 2026 Return

T4 income is reported on several lines of your federal tax return (T1 General). Here's the general structure for the 2025 tax year:

• Employment Income (Box 14): Enter the total from all your T4 slips' Box 14 on Line 10100 of your 2026 tax return. If you have multiple T4s from 2025, add them all together.
• CPP Contributions (Box 16): This amount is used to calculate your CPP non-refundable tax credit on Schedule 1. The software will automatically transfer this for you.
• EI Premiums (Box 18): Like CPP, this generates a non-refundable tax credit calculated on Schedule 1.
• Income Tax Deducted (Box 22): Enter on Line 43700 as federal tax deducted. This reduces your balance owing or increases your refund for 2026.
• RPP Contributions (Box 20): Deduct on Line 20700 to reduce your taxable income. These are pension contributions deducted from your pay in 2025.
• Union and Professional Dues (Box 44): Claim on Line 21200 as annual union, professional, or like dues. These reduce taxable income dollar-for-dollar.

Reporting T5 Investment Income on Your 2026 Return

T5 income is more complex because different types of investment income are reported on different lines and receive different tax treatment:

• Actual Amount of Dividends (Box 25): Don't report this amount directly. Instead, use the taxable amount.
• Taxable Amount of Eligible Dividends (Box 24): Report on Line 12000. This is the grossed-up amount (138% of actual dividends received in 2025).
• Dividend Tax Credit for Eligible Dividends: The credit is calculated automatically based on Box 24 and claimed on federal Schedule 1 and provincial forms.
• Other Than Eligible Dividends (Box 26): Report on Line 12010. These are already grossed up by 115% and receive a smaller dividend tax credit.
• Interest from Canadian Sources (Box 13): Report on Line 12100. This is fully taxable at your marginal rate with no special treatment.
• Foreign Interest and Dividends (Boxes 14 & 15): Report on Lines 12100 and 12100 respectively. These are fully taxable.
• Foreign Tax Paid (Box 17): Claim as a foreign tax credit on federal Schedule 1, Line 40500, and provincial forms. This prevents double taxation on 2025 foreign income.

Using Tax Software vs. Manual Filing for 2026

Most Canadians use certified tax software to file their 2026 returns electronically through NETFILE. Tax software has several advantages when dealing with T4 and T5 slips:

• Automatic Calculations: Software automatically calculates dividend gross-ups, tax credits, and deductions, reducing math errors.
• Auto-Fill Service: With CRA Auto-fill, the software can automatically import your T4 and T5 information for 2025 directly from CRA's database, eliminating manual entry.
• Error Checking: Built-in validation catches common mistakes like missing slips or incorrect box entries before you file your 2026 return.
• Faster Processing: Electronic filing typically results in refunds within 2 weeks compared to 8 weeks for paper returns.
• Confirmation of Receipt: You receive immediate confirmation that CRA has received your 2026 return.

If you're filing a paper return, you must attach all T4 and T5 slips from 2025 to your return when mailing it to the CRA. For electronic filing, you don't need to submit the slips themselves since the CRA already has copies, but you must keep them for your records for six years in case of an audit or review.

Maximizing Your Tax Return in 2026

Understanding your T4 and T5 slips isn't just about compliance—it's also about identifying opportunities to reduce your tax burden and increase your refund. Strategic tax planning based on your employment and investment income can result in significant savings when filing your 2026 return.

Tax Optimization Strategies for 2026

• Maximize RRSP Contributions: Your 2025 T4 employment income generates RRSP contribution room (18% of earned income). Contributing to your RRSP by the March 1, 2026 deadline reduces your taxable income dollar-for-dollar, potentially dropping you into a lower tax bracket.
• Optimize Investment Location: Hold tax-inefficient investments (like interest-bearing securities and foreign dividends) in registered accounts (RRSP, TFSA) where income isn't taxed. Keep tax-efficient investments (like Canadian eligible dividend stocks) in non-registered accounts to benefit from the dividend tax credit.
• Income Splitting: If you have a spouse in a lower tax bracket, consider strategies like spousal RRSPs or pension income splitting (for those 65+) to balance income between spouses and reduce overall family tax for 2026.
• Claim All Employment Expenses: If you're a commissioned salesperson, transport employee, or work from home, you may be eligible to claim employment expenses. Review your T4 Box 43 and ensure you're claiming everything you're entitled to for 2025.
• Time Dividend Income: If you control when you receive dividends (through private company shares), consider the timing for 2026 to manage your total taxable income and potentially stay in a lower tax bracket.
• Harvest Tax Losses: If you have investment losses in non-registered accounts, you can use them to offset capital gains. This doesn't appear directly on T5 slips but is important for overall investment income management.
• Claim Foreign Tax Credits: Don't forget Box 17 on your T5 for 2025. Many taxpayers miss claiming foreign tax credits, effectively paying tax twice on the same income.
• Contribute to TFSAs: While TFSA contributions don't reduce your current taxes, all investment income earned in a TFSA is tax-free forever and never appears on T5 slips, making it a powerful wealth-building tool for 2026 and beyond.

When to Seek Professional Help for 2026

While many taxpayers can handle straightforward T4 and T5 situations, certain circumstances warrant professional assistance when filing your 2026 return:

• You have significant investment income from multiple sources in 2025
• You received stock options or other complex employment benefits in 2025
• You're self-employed in addition to receiving T4 income
• You have foreign investment income and aren't sure about foreign tax credits
• You're approaching retirement and need to plan pension income splitting
• You have complex family situations like separation or divorce
• You've received letters from CRA about previous returns
• You want to implement tax planning strategies to minimize future tax

A qualified tax professional can identify opportunities you might miss and ensure you're taking advantage of every available deduction and credit. The cost of professional tax services often pays for itself many times over through tax savings and peace of mind.

Frequently Asked Questions