Use this concise, Ontario-focused checklist to gather everything you need before you prepare or file a Canadian personal income tax return. Each numbered item below is a substantive category of documents or tasks you should complete or collect. Where a claim is jurisdiction sensitive, links point to official guidance so you can confirm details with the CRA or provincial resources.
1. Tax slips and personal identification
Start by assembling official tax slips and identity details you will use to complete your return: T4 (employment), T4A (pension and certain benefits), T4E (employment insurance), T5 and T3 (investment income), T4RSP/T4RIF (registered plan withdrawals), RRSP contribution receipts, T2200 if your employer requires it for work expenses, and your Social Insurance Number. The federal government recommends gathering slips and personal information before you file; see the CRA get-ready checklist for details.
How to read common slips
- Check boxes and amounts on a T4 carefully: employment income, CPP/QPP contributions and EI premiums are all reported on this slip.
- T5 shows interest and dividend income; T3 reports trust income and capital gains distributions.
- RRSP receipts record deductible contributions that reduce taxable income.
What to do if a slip is missing
- Request missing slips from the issuer first: employers, financial institutions or service providers usually reissue slips online.
- If you cannot obtain a slip, use your own records and keep supporting documents; the CRA explains how to report income when slips are late or missing.
2. Records for other income types
Collect documentation for any income not reported on standard slips. This includes self-employment summaries, rental income and expense records, investment transaction histories and foreign income statements. Reporting requirements differ by income type, so keep clear, dated records.
Self-employed bookkeeping summary
- Sales reports or invoices, receipts for business expenses, bank statements, and a profit and loss summary for the year.
- Keep a record of HST/GST collected and remitted if you are registered for a business number.
Rental income and expense log
- Tenancy agreements, rent rolls, receipts for repairs and maintenance, property tax and insurance bills, and mortgage interest statements.
Reporting foreign income and capital gains
- Bring statements showing foreign income and any foreign tax paid, plus transaction histories for capital gains. The CRA requires disclosure of worldwide income for residents.
3. Receipts and records for deductions and credits

Gather receipts that substantiate common deductions and non-refundable credits. Typical items include medical expenses, charitable donations, childcare costs, tuition and education slips (T2202), RRSP contribution receipts, moving expenses (when eligible), and records for caregiver or disability supports. The Financial Consumer Agency of Canada provides a grouped pre-tax checklist that shows common categories for receipts and records.
How to organize receipts by category
- Sort receipts into folders or digital folders named for each credit or deduction: medical, charitable, childcare, tuition, RRSP.
- Label receipts with date, payee and purpose to speed verification if the CRA requests proof.
Which receipts to keep and for how long
Keep supporting documents for at least six years, as the CRA can ask to see records to verify claims. This includes electronic records, PDFs, and exported statements.
4. Set up CRA access, direct deposit and choose a filing method
Before you file, register for CRA My Account to view slips the CRA received, check your Notice of Assessment, and set up direct deposit. Decide whether you will file using NETFILE-certified software (most individual returns), have a preparer file electronically via EFILE, or submit a paper return. Official Canada guidance explains filing options and the benefits of electronic filing.
Registering for CRA My Account
- Create or sign in to a CRA My Account to check your tax information and benefit status, and to enrol in online services such as direct deposit and Auto-fill my return where available.
How NETFILE and certified software work
- NETFILE lets most individuals submit their return directly using certified software. It is faster for processing refunds and updates than mailing a paper return.
Authorizing a preparer
- If you authorize someone to file on your behalf, you will need to provide personal information and possibly a signed authorization form. Keep credentials and communications for your records.
5. Deadlines, Ontario notes and payment steps

Observe federal filing and payment deadlines and note Ontario-specific administration. The CRA administers both federal and Ontario personal income tax; verify due dates and special rules for self-employed filers or those with instalment obligations on the CRA site and on Ontario's information page.
Key calendar dates
- Regular individual filing and payment deadlines are published annually by the CRA. Self-employed individuals generally have the same filing deadline but must pay by the usual date for taxes owing; check the official federal page for exact dates each year. (Personal income tax - Canada.ca)
Missing a payment or filing late
- Late payment can trigger interest and penalties. If you cannot pay in full, explore CRA payment arrangements or instalments to reduce additional charges.
How to make a payment
- Payments can be made through online banking, CRA My Payment, pre-authorized debit, or by mail. Confirm methods on the federal guidance page.
6. Quick callouts for common filer groups
Different groups need to prioritise specific documents. Below are short, actionable lists tailored to common situations.
Employees
- T4 slips, union dues receipts, employment expense receipts if claiming, and commuting or relocation documentation when eligible.
Students and recent grads
- T2202 tuition slips, interest paid on student loans, and receipts for education-related credits.
Seniors and pensioners
- Pension slips (T4A), RRSP/RRIF statements, and any slips for Old Age Security or CPP benefits.
Freelancers and gig workers
- Invoices issued, expense receipts, home office calculations and records of business use of a vehicle.
Newcomers to Canada
- Proof of residency date, income earned before arrival, and documentation for any foreign income; the CRA requires reporting of worldwide income from the date you become a resident.
7. When to get professional help and what to bring
Certain situations justify hiring a tax professional. Triggers include multiple income streams, rental or business income, large capital gains, complex foreign reporting, recent immigration, or a CRA audit notice. The federal guidance on filing is a good starting point to understand obligations; if you prefer professional support, bring a complete packet of slips, a year-end profit and loss, receipts for deductions, and any CRA correspondence.
Red flags that justify a preparer
- Missing slips or substantial income not captured on standard forms, prior-year unfiled returns, or unfamiliar foreign tax credits.
Questions to ask before you book
- Ask whether the preparer is registered, how they protect your information, what they will need from you, and whether they file electronically on your behalf.
What to expect during a free consultation
- A preparer will confirm your situation, list missing documents, suggest records to gather, and outline engagement steps. For Ontario filers who want local help, see Verma Accounting's personal tax page to book a consultation and learn how they manage setup, review and ongoing support.
Frequently asked questions
Federal filing and payment due dates are published annually by the CRA and apply to Ontario residents as well because the CRA administers both federal and Ontario personal income tax. Special rules may apply to self-employed taxpayers. Confirm current year dates on the official CRA page and the Ontario information page.
Contact the issuer first to request a replacement slip. If you still cannot obtain it, use your records to estimate amounts and keep supporting documentation. The CRA provides guidance on reporting income when slips are missing and how to explain estimates on your return.
Register for CRA My Account online using your SIN, personal details and security verification. Within My Account you can enrol for direct deposit and view slips the CRA has on file. See the CRA get-ready page for step-by-step registration and security measures.
Keep invoices and receipts for utilities, rent or mortgage interest, supplies, home insurance, and a log showing business kilometres driven and total kilometres for the vehicle. Retain these records for at least six years in case the CRA requests verification.
If your return is straightforward and you are comfortable with certified NETFILE software, filing yourself may be efficient. Hire a professional when you have multiple income sources, business or rental income, complex foreign reporting, prior-year issues, or when you prefer someone to handle an audit or CRA correspondence.
Key resources: Personal income tax on Canada.ca, the get-ready checklist, and the Financial Consumer Agency pre-tax checklist (PDF).