All topics
Every guide on Canada Tax Desk, grouped by topic.
NETFILE and E-Filing
Filing a T1 return online with NETFILE, the access code, ReFILE and fixing CRA-side rejections.
- CRA EFILE: How Tax Preparers File Returns for Clients
- NETFILE Access Code: Where to Find It on Your NOA in 2027
- NETFILE Eligibility: Who Can and Cannot File Online
- NETFILE Not Working? CRA-Side Causes and What to Do
- When Does NETFILE Open? Dates for the 2027 Tax Season
- NETFILE Quebec: Filing Your Quebec and Federal Returns
- NETFILE Rejected: Why the CRA Refused Your Tax Return
- ReFILE CRA: How to Amend Your Return with Tax Software
Filing Your Return
How, when and by what method to file a Canadian return, including late, past-year and special returns.
- CRA Auto-fill My Return: How It Pre-fills Your Tax Slips
- CRA Automatic Tax Filing: Who May Qualify Starting 2027
- Late Filing Penalty Canada: How the CRA Calculates It
- Late Tax Return Canada: How to File Overdue Tax Returns
- Paper Tax Return Canada: How to File Your Return by Mail
- RC4288 Taxpayer Relief Request: Cancel CRA Penalties
- Self-Employed Tax Deadline Canada: June 15 vs April 30
- SimpleFile CRA: Who Gets an Invitation and How It Works
- Tax Deadline Canada: 2027 Filing and Payment Due Dates
- Tax Changes 2027 Canada: What's New for the Tax Season
After You File
Notices of assessment, refunds, reviews, reassessments and balances owing from the CRA.
- Change My Return CRA: Fix a Mistake on Your Tax Return
- CRA Balance Owing: How to Pay It and Avoid Extra Interest
- CRA Payment Arrangements: How to Set Up a Tax Payment Plan
- CRA Pre-Assessment Review: Why Your Refund Is on Hold
- CRA Refund Delay: Why the CRA Is Holding Your Refund
- How Long Does the CRA Take to Process a Tax Return?
- CRA Refund Status: How to Check Where Your Refund Is
- CRA Review Letter: What It Means and How to Respond
- Notice of Assessment: How to Read Your CRA NOA Line by Line
- Notice of Reassessment: Why the CRA Changed Your Return
- T1 Adjustment Request: How to Use Form T1-ADJ by Mail
- Where Is My Notice of Assessment? Find It in My Account
CRA Account
Registering, signing in, security and direct deposit in CRA My Account.
- Change CRA Direct Deposit: Update Your Bank Account
- CRA Account Locked: How to Unlock It and Get Back In Fast
- CRA Backup Multi-Factor Authentication: What Changed
- CRA Direct Deposit: How to Set It Up for Tax Refunds
- CRA Scam or Real? How to Check a CRA Letter, Text or Call
- CRA Login Help: Sign-In Options and Common Problems
- Register for CRA My Account: Step-by-Step for First-Timers
Tax Slips and Lines
What each common tax slip reports and where key return lines come from.
Tax Rates and Brackets
Federal and provincial brackets, the basic personal amount and rate changes, with a calculator.
Disability Tax Credit
Eligibility, Form T2201, amounts, retroactive claims and processing for the DTC.
Credits and Deductions
Medical, tuition, caregiver, home and moving claims plus new credits for 2026.
RRSP, TFSA and FHSA
Limits, deadlines, penalties and home-buying rules for registered accounts.
GST/HST for Business
Registering, charging, filing and paying GST/HST, including GST/HST NETFILE.
Self-Employed
T2125, CPP, deductible expenses, instalments and gig work for sole proprietors.
Newcomers, Students and Seniors
First returns and the claims that matter most to newcomers, students and seniors.