Resources

Deadlines, checklists, answers.

Key Canadian tax deadlines

Recurring deadlines to know. Dates can shift when they fall on a weekend or holiday — this is general information, not tax advice.

CodeFilingWhen
T1Personal income tax (T1)April 30 (following the tax year)
T1Self-employed T1 filingJune 15 · balance owing still due April 30
T2Corporate income tax (T2)6 months after fiscal year-end · balance generally due 2–3 months after year-end
RRSPRRSP contribution deadline60 days after year-end
T4·T5T4 and T5 slipsEnd of February
INSTPersonal quarterly instalmentsMar 15 · Jun 15 · Sep 15 · Dec 15
GSTGST/HST returnsDue dates vary by filing frequency (monthly, quarterly, or annual)

New · Beta

2026 Canadian tax estimator

A rough planning estimate for 2026 — supports multiple jobs, self-employment, RRSP and FHSA planning. Nothing you enter is saved.

Open the estimator

Personal — what to prepare

  • Prior-year Notice of Assessment (NOA)
  • T4 (employment), T4A, T4E, T5, T3, T5008 slips
  • RRSP contribution receipts
  • Medical expenses, donations, and tuition (T2202)
  • Rent or property tax receipts (Ontario Trillium, etc.)
  • Home office expenses (if eligible)
  • Investment income and capital gains summaries
  • Foreign income and foreign property (T1135 if over $100,000 CAD)

Business — what to prepare

  • Prior-year financial statements and corporate tax return
  • Bookkeeping to the fiscal year-end (or raw bank/credit-card statements)
  • GST/HST filings and remittance history
  • Payroll summaries and T4 filings
  • Loan and lease agreements
  • Capital asset purchases and dispositions
  • Shareholder loan and dividend records
  • Any CRA correspondence received during the year

Frequently asked questions

Do you work with clients outside Ontario?+

Yes. We are a fully virtual practice and file across every Canadian province and territory.

How do I send documents securely?+

Through our encrypted client portal — no email attachments, no fax. You will receive an invite once we start working together.

What happens if I get a CRA review letter?+

Send it to us as soon as possible. We will draft the response, gather the supporting documentation, and correspond with the CRA on your behalf.

Can you help if I haven't filed for several years?+

Yes. We regularly bring clients back into good standing and, where appropriate, can guide you through the Voluntary Disclosures Program.

Do you handle Quebec returns?+

Yes — including Revenu Québec (TP1 and RL slips) for individuals and corporations with Quebec activity.

How does pricing work?+

Every engagement is scoped on a free discovery call and then quoted as a transparent fixed fee — so you know the number before we start.

The information on this page is general in nature and is not a substitute for personalized tax advice. Book a consultation for guidance specific to your situation.

Ready when you are.

Book a free discovery call — we'll scope your work and quote a transparent fixed fee before any engagement starts.