Using WhatsApp messages as evidence in a landlord-tenant dispute

Why timestamps decide these disputes

Landlord-tenant cases frequently turn on timing: did the tenant tell the landlord about the leak before the damage got worse, did the landlord give proper notice before entering, was the tenant asked to leave with enough warning. A screenshot showing “Yesterday” or just a time with no date doesn’t establish anything on its own. A full export preserves the exact date and time of every message, which is exactly what a board member or judge needs to determine who knew what, and when.

A chronological PDF also shows the full back-and-forth — the initial request, any acknowledgment, follow-ups, and what (if anything) was done about it — rather than a single message taken out of its sequence.

Repair requests and notices

If your case involves a maintenance issue, the key evidence is usually the message where you first reported it and the date, plus anything showing the landlord acknowledged it or failed to respond. If it involves a notice — of entry, of a rent increase, of an inspection — the date the message was sent, and whether it gave adequate advance notice, is often the whole question.

Use the date-range filter to build a focused exhibit covering the relevant period: from before the first request or notice through to the most recent related message, so the reader sees the full sequence without unrelated chat cluttering the exhibit.

Deposit and move-out disputes

Disputes over a security deposit often hinge on messages about the condition of the unit at move-in and move-out, and any promises made about what would or wouldn’t be deducted. If you exported the chat with media, the Case Pass can embed any photos that were sent alongside the messages describing them — useful when a photo of a wall or a fixture was sent in the same conversation as a message about its condition.

Building the exhibit

1. Export the WhatsApp chat with your landlord or tenant — see the iPhone and Android instructions.
2. Open chattoevidence.com and drop in the .txt or .zip file; it’s processed locally in your browser.
3. Set the date range to cover the relevant period, from before the issue started through the most recent related message.
4. Generate the PDF with the Case Pass for the full transcript, an exhibit label such as “Exhibit A”, sequential page numbering and a certification page with the SHA-256 hash of the source export.
5. Keep the original export file, and print or save a copy of the PDF to submit with your application, claim or response.

Check your tribunal’s own rules

Every landlord-tenant board and small claims court has its own rules for how evidence should be formatted and filed, and those rules can change. This guide describes general practice, not a specific requirement of the Ontario Landlord and Tenant Board or any other tribunal. Before you file, check the current rules or forms guidance for the board or court handling your case, and consider speaking with a tenant or landlord advocacy organization or a lawyer if the amount at stake is significant.