Getting your tax documents organized in winter, before the spring filing rush, is one of the smartest moves you can make as a Canadian taxpayer. The CRA expects you to have pay stubs, receipts for deductions, investment statements, and donation records ready before you file. Starting this process in January or February gives you time to track down missing documents, contact employers or institutions for copies, and avoid the stress of last-minute scrambling. Think of winter as your tax prep season. Winter falls naturally between the tax year ending (December 31) and the filing deadline (June 15 for most people, or June 3 if you owe taxes). Financial institutions send most documents by late January or early February. Starting your collection now means: You'll have time to request missing T-slips from employers You can track down receipts before memory fades You'll identify gaps in your record-keeping for next year You can decide whether to file yourself or use a tax professional If you worked in 2025, your employer must issue a T4 slip by the end of February. This shows your gross salary, taxes withheld, RRSP contributions, and other payroll deductions.
Most employers and financial institutions must send T-slips by the end of February 2026. T4 slips from employers, T5 slips from banks, and T5008 slips from investment firms all follow this deadline. If you don't receive a slip by mid-March, contact the issuer.
Yes, the CRA expects you to have receipts and supporting documents for at least six years. You don't mail receipts with your return, but you must keep them in case the CRA asks. This CRA rule may apply to you: digital photos or scanned copies of receipts are acceptable.
Organizing documents yourself takes time but saves money. A tax professional will organize and file for you, costing money but saving time and potentially catching credits you missed. Either way, having documents ready now makes the process faster and less stressful.
You can file early if you have most documents, but you may need to file an amended return later if a T-slip arrives showing different income. The CRA prefers you wait for all T-slips to avoid errors. If you owe taxes, filing early helps you pay before the deadline.
You need invoices for all income, receipts for every business expense, mileage logs if you claim vehicle expenses, and home office records if you work from home. Organize these by category (office, supplies, travel, utilities) to make filing easier.