Tenant is fixing things themselves and deducting from rent — what now?

Self-help repair deduction is NOT a tenant's right under the RTA, with very narrow exceptions. The tenant generally has to file a T6 to get an abatement or repair order — they can't unilaterally deduct from rent.

**The narrow exception:** emergency repair where the landlord was given reasonable notice and failed to respond. Even then, the LTB has historically required the tenant to file an L application after the fact rather than self-deduct.

**Practical situation:**

The tenant has now technically underpaid rent. That's grounds for an N4. But before serving:

1. **Verify the facts.** Did the tenant actually notify you of the issue first? Did you respond? Was it actually emergent? Was the repair reasonable in scope and cost?
2. **If their case is weak:** serve the N4 for the underpaid amount. They'll have the option to cure within 14 days or you file L1.
3. **If their case has merit (you really didn't respond, the issue was emergent):** offer to reimburse or accept the deduction in writing, with a clear statement that this is a one-time accommodation and future repairs require pre-approval.
4. **Either way: write back in writing.** "Receipt of $X confirms your payment of $Y of the $Z due for [month]. The $ difference is outstanding."

Going forward, include in the next lease renewal (or sign an amendment): "Tenant agrees not to perform any repairs or modifications without landlord's prior written approval. Tenant agrees to immediately notify landlord of any maintenance issues in writing."

VirtualPM Legal Shield handles disputed-rent situations at the $39/month tier. Book a free 15-minute consult.