Rent Increase Calculator

Percent vs. flat increase gives you two ways to model the same change — enter a percentage for a proportional increase, or a flat dollar amount if you're targeting a specific new rent figure; the flat amount takes priority if you enter both.

Rent increases are often legally limited, both in how much you can raise rent and how much notice you must give — some cities and states cap annual increases entirely (rent control/stabilization), while others only require advance written notice with no cap.

Check your state and local rules before finalizing a rent increase, since requirements vary significantly and this calculator only does the math, not the legal check.