Canadian T1 tax intelligence

Plan ahead.
Look back.
Pay less.

TaxCorrection.ca runs the same pro-grade engine for two jobs: forecast and optimize your upcoming year, and re-check your last four returns for refunds the CRA still owes you.

All 13 provinces & territories 2022–2026 tax years
Two tools, one engine

Whether the year is ahead of you or behind you

Tax planning

UPCOMING YEAR · 2026

Enter your situation once — province, both spouses, every income source, deductions and credits — and forecast your 2026 return on projected brackets and indexation. Then tune the levers.

  • Projected 2026 federal & provincial rates, indexed
  • Optimize RRSP, FHSA, pension split, donations, credit transfers
  • Side-by-side before / after on every change

Second look

PRIOR YEARS · 2022–2025

Upload a past Notice of Assessment. We re-run the year against every credit and deduction you were entitled to, flag what was missed, and estimate the refund still recoverable.

  • Reads your NOA PDF and rebuilds the return
  • Flags missed credits, errors & refund opportunities
  • Generates a T1-ADJ to paper-file, or a Change-my-return summary
13
Provinces & territories, with the right credits for each
5
Tax years covered — 2022 through 2026
T1-ADJ
Adjustment forms generated ready to file
Family
Both spouses optimized together, not separately
How it works

Sign in, enter once, see the difference

1

Sign in with Google

One tap with your Google account. Your returns are saved securely to your account so you can pick up where you left off.

2

Enter your situation

A single guided form — province, marital and student status, dates of birth, income slips, deductions and credits for you and your spouse.

3

Optimize & act

Tune the levers and watch the refund move. For past years, download a T1-ADJ or a step-by-step Change-my-return guide.

Who it's for

Confident filers and the pros who serve them

Individuals

You know what an RRSP receipt is and you want software that shows the math, not a chatbot. Plan your year, then make sure the CRA didn't quietly keep money you were owed.

Preparers

Run quick what-if scenarios for clients, optimize credits across a couple, and produce review findings and adjustment forms in minutes — with every line referenced by its CRA number.

See what your return should say

Free to explore. Sign in with Google to save your plan and run a second look on any year back to 2022.