Rent Increase Calculator
Work out your new rent after a percentage increase, the extra you pay each month and year, and how rent compounds over several years.
How it works
New rent = current rent × (1 + increase%) · Extra/month = new − current · After N years = current × (1 + increase%)^N
A one-time increase multiplies your rent by (1 + the percentage). Because each year's raise applies on top of the last, rent grows geometrically rather than in flat steps — a steady 5% a year compounds noticeably over a lease renewal or two. The projection shows how quickly small annual raises add up.
Worked example
At $1,500 a month, a 5% increase makes the new rent $1,575 — $75 more a month, or $900 more a year. Held at 5% annually, rent compounds to about $1,914 after five years, roughly $414 more per month than today.
Frequently asked questions
Is there a legal limit on rent increases?
It depends entirely on your location. Many areas have no cap for market-rate units, while rent-controlled or rent-stabilized jurisdictions set annual maximums and require notice. Check your local and state tenant law.
How much notice does a landlord have to give?
Notice periods vary by jurisdiction and lease, commonly 30 to 90 days before a renewal or the increase taking effect. Larger increases often require longer notice. Your lease and local law govern the specifics.
Why does the multi-year total look so high?
Because each increase stacks on the raised rent, not the original. A 5% raise every year compounds, so five years of 5% is about a 28% total rise, not 25%.
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Educational estimate only — not financial, tax or lending advice. Confirm exact figures with your lender.