Most landlord disputes come down to one thing: documentation. The landlord who keeps records wins. The landlord who relies on memory loses — at the Landlord and Tenant Board, at tax time, and in any conversation with a tenant who has a different recollection of events.
Record-keeping isn't glamorous, but it's one of the highest-leverage habits a landlord can build. This guide covers exactly what to keep, for how long, and how to organize it.
Why Records Matter in Ontario
Ontario's rental market is governed by the Residential Tenancies Act, and disputes go to the Landlord and Tenant Board. LTB hearings are quasi-judicial proceedings — they're formal, the tenant has a right to challenge your evidence, and adjudicators expect documentation.
Without records:
- You can't prove a tenant owes rent arrears beyond your memory
- You can't demonstrate that the unit was in good condition at move-in if a tenant claims pre-existing damage
- You can't support an above-guideline rent increase application without invoices
- You can't defend a maintenance complaint if you have no record of responding
With records, you can. It's as simple as that.
What to Keep: A Complete Breakdown
1. The Tenancy Application
Keep the original rental application — signed — including:
- Full legal name, date of birth
- Employment and income information provided
- References and emergency contacts
- Credit check consent and results
How long: For the full duration of the tenancy plus at least two years after.
2. The Lease Agreement
Keep the signed Standard Form of Lease (Ontario's mandatory form since 2018) and any addenda. Both you and the tenant should have a copy.
If anything is disputed about the terms — whether pets were allowed, what parking was included, what utilities the landlord covers — the signed lease is your evidence.
How long: Full tenancy plus three years after.
3. Move-In and Move-Out Inspection Reports
Ontario's RTA requires landlords to offer a written inspection report at move-in and move-out. Use the written checklist and document every room with:
- Description of condition
- Photos (dated)
- Tenant signature confirming the report
This is your single most important protection against tenant damage disputes. A tenant cannot claim pre-existing damage that was documented and signed off at move-in.
How long: Until the deposit/damage dispute period has fully resolved — at minimum two years after move-out.
4. Rent Payment Records
Keep a complete record of every payment received:
- Date received
- Amount
- Payment method (e-transfer, cheque, cash)
- The period it covers
If a tenant claims they paid rent and you have no record, it becomes a credibility contest at the LTB. With bank records, e-transfer confirmations, or a signed receipt (for cash), it's a factual question.
Pro tip: Don't accept cash without providing a signed receipt. Keep a copy of every receipt you issue.
How long: Minimum seven years (aligns with CRA audit window and LTB limitation periods).
5. All Written Communications
Keep copies of every text message, email, and written notice between you and the tenant. This includes:
- Rent reminders and late rent correspondence
- Maintenance requests and your responses
- Notices served (N1, N4, N5, etc.) — keep proof of service
- Any communication about lease renewals, changes, or special agreements
Set up a folder in your email for each property/tenant and move relevant messages there in real time. Don't rely on scrolling through your inbox six months later.
How long: Full tenancy plus three years.
6. Maintenance Records
For every maintenance request:
- Date received (note the method — text, email, verbal)
- What the issue was
- When you responded
- When you arranged repair
- Contractor name, invoice, and date of completion
If a tenant files a maintenance complaint at the LTB claiming you ignored a problem, your maintenance log is your defence. If it shows you responded within 24 hours and scheduled a contractor, your case is strong. If it shows nothing, you're in trouble regardless of what you actually did.
How long: Seven years (capital items may be relevant for tax and AGI purposes for longer).
7. Contractor Invoices and Receipts
Every dollar you spend on your rental property should be documented with an invoice from a legitimate business. This serves two purposes:
- Tax deductions — repairs, maintenance, and capital expenses are deductible or depreciable. Without receipts, you can't claim them.
- LTB proceedings — if you ever apply for an above-guideline rent increase or defend a maintenance complaint, invoices prove the work was done.
Keep both a digital scan and the physical original where possible.
How long: Seven years minimum; longer for capital expenditures that may affect your adjusted cost base when you sell.
8. Notices Served and Proof of Service
Every formal notice you serve under the RTA — N1, N4, N5, N8, N11, etc. — should be:
- A completed original with the correct dates and amounts
- Accompanied by proof of service: a note of when and how it was delivered, signed by a witness if possible
If you served an N4 and the tenant claims they never received it, your proof of service matters enormously.
How long: Full tenancy plus three years, or until any related LTB proceeding is fully resolved.
How to Organize It All
The best system is one you'll actually use. Here are two approaches that work well:
Digital-First (Recommended)
- One folder per property on Google Drive, Dropbox, or a similar service
- Subfolders: Applications, Lease, Inspections, Rent Records, Communications, Maintenance, Notices
- Scan physical documents with your phone (Google PhotoScan or a scanner app)
- Back up automatically to cloud storage
Physical Binder System
- One binder per property, tabbed by category
- Pair it with a simple spreadsheet for rent tracking and maintenance logs
Whichever you choose, consistency matters more than perfection. A simple system used regularly beats an elaborate system used never.
How Long to Keep Everything: Quick Reference
| Document | Keep For |
|---|---|
| Signed lease | 3 years after tenancy ends |
| Rental application | 2 years after tenancy ends |
| Move-in/move-out report | 2 years after move-out |
| Rent payment records | 7 years |
| Maintenance records | 7 years |
| Contractor invoices | 7 years (longer for capital items) |
| All communications | 3 years after tenancy ends |
| Formal LTB notices | 3 years after tenancy ends |
The Bottom Line
Good record-keeping is boring. It's also one of the most important things you can do as a landlord in Ontario.
At Prospera Properties, record-keeping is built into how we manage every property — every maintenance request is logged, every payment is tracked, every notice is documented with proof of service. It's part of how we protect our clients if something ever goes sideways.
If you're a self-managing landlord in London, St. Thomas, or Sarnia and you're not sure your records would hold up at the LTB, it's worth taking an afternoon to organize what you have. And if you'd rather hand that responsibility to someone else entirely, we're here.