Rent Increase Calculator
Enter your current rent, proposed increase, and ZIP code. We'll calculate your increase percentage, compare it to the local market trend, and tell you if your landlord's asking above market.
How this calculator works
Every other rent increase calculator on the internet does one thing: basic math. You type in two numbers, it tells you the percentage. You could do that on your phone.
This one actually tells you whether the number is reasonable. After calculating your increase, it pulls rent data for your specific ZIP code and compares your landlord's ask to what's actually happening in your market:
· Year-over-year rent trends from multiple market sources
· Federal rent benchmarks for your bedroom count
· Comparable listings near your address
· A Fairness Score (0–100) that weighs all of the above
If your increase is above the local trend, you get a counter-offer range and a negotiation letter you can actually send — not a generic template, but one built from the data in your area.
Common questions
How do I calculate my rent increase percentage?
Take the new rent, subtract your current rent, divide by your current rent, multiply by 100. So $2,000 to $2,100 is a 5% increase. The form above does this for you and then tells you whether 5% is high or low for your area.
What is a normal rent increase?
There's no single answer — it depends entirely on where you live. In some cities rents are falling right now. In others they're climbing 5-8% a year. Anyone who tells you "3-5% is normal" without checking your ZIP code is guessing. That's the whole point of this tool.
Can I negotiate my rent increase?
Almost always. Landlords expect some pushback, and replacing you costs them more than you'd think — vacancy, cleaning, listing fees, the risk of a worse tenant. If your increase is above the market trend, you have real leverage. The tool generates a letter with your local numbers built in.
Is this free?
Yes. The full analysis — comps, Fairness Score, negotiation letter — costs nothing. You can save your report by entering your email, but it's not required to see your results.
Where does the data come from?
We combine federal rent benchmarks from HUD, market rent trends from multiple commercial data providers, and real comparable rental listings near your address. Coverage spans 38,600+ US ZIP codes.
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