Rent Increase Calculator
Calculate a new rent after a percentage increase, or the percentage between old and new rent — and compare it with a rent cap you enter.
For information and education only — not financial advice. Results are estimates based on the numbers you enter; check important decisions with a qualified professional.
How to use
- 1Enter the current rent and the increase (percent or new amount).
- 2Optionally enter your local rent cap to check the increase against it.
How it's calculated
New rent = old × (1 + increase %). Increase % = (new − old) ÷ old × 100.
Frequently asked questions
Is there a legal limit on rent increases?
Some places cap them — for example California (5% + CPI, max 10%) and Oregon under state law, and many cities with rent control. Many areas have no cap. Check local rules.
How much notice is required?
It varies — often 30 to 90 days in the US depending on the size of the increase and the state.
What's a typical increase?
Around 3–5% a year is common in many markets, but it swings with local demand.