Guides · Written by a Canadian CPA · Not legal or tax advice
Notice of objection vs. taxpayer relief (Form RC4288)
Two different CRA processes, two different problems. Filing on the wrong track wastes months — sometimes past your real deadline. Here's how to tell them apart.
The one-paragraph version
A notice of objection is the formal track for disputing the CRA's assessment itself — the facts and law behind how much tax you owe. A taxpayer relief request (Form RC4288) is a separate track that can only ask the CRA to cancel or waive penalties and interest; it cannot change the tax the CRA says you owe, and there is no right of objection or appeal on relief decisions.
Side by side
| Notice of objection | Taxpayer relief (Form RC4288) | |
|---|---|---|
| Disputes | The assessment itself — income added, deductions denied, credits reduced, GST/HST charged | Only penalties and interest |
| Can it change the tax owing? | Yes — that's its purpose | No — the underlying tax stands |
| Legal basis | ITA s.165(1); ETA s.301(1.1) | ITA s.220(3.1); ETA s.281.1 |
| If refused, can you appeal? | Yes — objection leads to a Minister's decision, appealable to the Tax Court | No — there is no right of objection or appeal on relief decisions |
| Deadlines | Strict statutory deadlines (usually 90 days) | Separate relief rules and time limits |
Which one is yours?
- "The CRA added $8,000 of income I didn't earn" → objection. The tax owing itself is wrong.
- "The CRA denied my medical expense claim" → objection. The assessment is disputed.
- "I agree I owe the tax, but the late-filing penalty is crushing and I had a reasonable cause" → taxpayer relief (RC4288). Only penalties and interest are in play.
- "I disagree with the assessment AND the penalties are unfair" → two tracks. Object to the assessment to dispute the tax; relief is a separate request about penalties and interest. Handle them separately.
The costly mistake
Filing a relief request when you meant to dispute the assessment: the relief process cannot reduce your tax, and while you're waiting, your objection deadline keeps running. By the time the relief decision arrives, the objection window may be closed — leaving you in discretionary extension territory (ITA s.166.1), where the CRA may refuse.