Rent Cap Ledger

Calculator · 40 jurisdictions · rules checked Oct 18, 2026

How much can my rent go up? Rent increase calculator

Pick where the rental is, enter the rent and the date of the last increase. You'll get the legal maximum, the earliest date it can take effect, the notice the landlord must give, and the exemptions that could change the answer. Every rule links to its official source.

Not legal advice. This estimate covers the basic annual cap only. It doesn't know whether your unit is covered, and ignores banked increases, pass-throughs, petitions, lease terms and local registration rules. Confirm with the agency or a tenant/landlord attorney before you act.

Leave blank if you don't know; we'll show the earliest date based on notice alone.

Choose where the rental is to start.

Max new rent–
Max increase–
Cap used–
Earliest effective date–

How it works

What the calculator checks

Maximum new rent. Your rent times the official cap, rounded down to the cent, with any dollar ceiling applied (Santa Monica's $70, for example). Where the cap depends on the date the increase takes effect (Oregon, Washington), it picks the figure for that date. If no official figure exists yet for that date, it says so.

Earliest effective date. The later of: the date your notice period ends if notice is served today, and 12 months after the last increase (or move-in) where the law limits increases to once a year. Where the official sources we track don't state a notice period or frequency rule, the calculator says so instead of assuming one.

Exemptions. It asks only the questions that matter for the jurisdiction you pick (building age under California's AB 1482, Oregon's 15-year and Washington's 12-year new-construction rules, Costa-Hawkins for California cities, and so on), each with its source.

The rent you type stays in your browser. We count which jurisdiction was used, never the amount.

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