# Form N1: Notice of Rent Increase (N1) Ontario Landlord and Tenant Board. Used for: The landlord's notice to the tenant of a rent increase: the new rent, when it starts, and whether the increase is within the rent increase guideline. ## Official source - Form file: https://tribunalsontario.ca/documents/ltb/Notices%20of%20Rent%20Increase%20%26%20Instructions/N1.pdf - Source page: https://tribunalsontario.ca/ltb/forms-filing-and-fees/ - Version: 2022-04-01 - Last checked by Router.law: 2026-10-19 ## Only the person can do - The landlord or representative signs the notice on page 2. ## Fill it with Router.law - REST: POST https://router.law/v1/forms/N1/fill (API key) - MCP: https://router.law/mcp, tool fill_form with form_id "N1" - Questions and input schema: get_form_spec("N1") - Docs: https://router.law/docs Router.law spec status: draft. Router.law returns the filled form for a person to review. It never files anything and does not give legal advice.