Find your new rent after an increase — the monthly and yearly dollar impact, and how it compares to inflation.
Applies a percentage (or flat dollar) increase to your current rent. Many areas cap annual increases or require notice — check your lease and local rent-control rules. Compare the increase to inflation to judge whether it's reasonable. General information only.
A percentage increase sounds small until you annualize it: a 5% bump on $1,800 is $90 a month — over $1,000 a year. Seeing the monthly and yearly dollar impact side by side helps you decide whether to accept, negotiate, or move, and whether the increase outpaces inflation.
The arithmetic is the least interesting part: new rent is current rent plus current rent times the percentage. On this calculator's defaults — $1,800 a month with a 5% increase — the increase is $1,800 × 0.05 = $90, the new rent is $1,890, and over twelve months you hand over $90 × 12 = $1,080 more than you did last year. The optional flat-dollar box overrides the percentage when you set it, which matters because landlords often quote the dollar figure; entering $90 there on $1,800 gives back the same 5%, and the "effective increase" line exists to translate in whichever direction you were given the number.
Ninety dollars is a takeaway meal. One thousand and eighty dollars is a flight, or a month of rent somewhere else, and it is the same decision. Percentages are designed to feel small — that is not a conspiracy, it is just how proportions read — so before you accept or contest an increase, look at the yearly figure rather than the monthly one. It is also the figure to bring to the conversation. A landlord who loses you faces a vacancy, and a vacant month at $1,890 plus advertising, cleaning and screening will usually cost more than the $1,080 they were trying to gain. That asymmetry is the whole basis of a polite negotiation, and a reliable tenant who pays on time has more leverage than they tend to believe. Whether it works varies enormously by market: in a tight rental market with queues at every viewing, it often will not.
It prices one increase. Rent increases repeat. Five percent a year on $1,800 is $1,890, then $1,984.50, then $2,083.73 — after three years you are paying about $283.73 more a month, not the $270 that three lots of $90 would suggest, because each rise is calculated on the raised rent. Over a longer tenancy that gap widens. If you are deciding whether to stay, run the increase you expect out three or five years rather than one, because the question is rarely "can I absorb $90" and usually "where does this end".
Deciding whether to accept an increase is a one-number question, and this page answers it. Absorbing one is not. An extra $90 a month has to come out of something, and the households that handle it without drama are the ones that can see which category it comes out of — not the ones that resolve to "spend less". Giving the new rent its own line against everything else, in a cash envelope budget tracker or any running budget you will actually keep, turns an abstract squeeze into a specific trade you can make on purpose. And if the answer is that it does not fit, you have found that out while there is still time to give notice.
Most places allow reasonable increases with proper notice, but rent-controlled units and some cities cap the annual percentage. Check your lease and local law before assuming.
Often worth trying — landlords value reliable tenants and turnover is costly for them. Come with the annual-dollar figure and comparable local rents.
Related: rent affordability calculator · inflation calculator · net effective rent calculator · all free calculators.
More free real estate & rentals tools — no signup, works on any device.
Yes. The Rent Increase Calculator is completely free, runs in your browser, and never asks for a signup, email, or download. Enter your numbers and the result updates instantly.
It uses standard formulas and recalculates the moment you change a value, so the math is exact for the inputs you enter. Treat the result as a reliable planning estimate; for decisions with legal or tax consequences, confirm the figures with a qualified professional.
Yes. The calculator is mobile-friendly and works on any phone, tablet, or computer — there is no app to install and nothing to save.
Yes. Scroll to “Add this free calculator to your site” above and copy the embed snippet to place the live calculator on your blog or website for free.
Last reviewed: September 2026. Free to use, no signup — Rent Increase Calculator by ToolWise Digital.
Copy the snippet to embed the live calculator on your blog or website — free for any site. The small “Calculator by ToolWise Digital” credit line keeps it free; you're welcome to remove it, but we appreciate you leaving it.
Ready-made Google Sheets & Excel trackers for money, taxes, and small business — each with a free phone version.
Browse the shop →Simple Monthly Budget and our Small Business Bookkeeping template (Google Sheets & Excel) — no signup, no wall, just the files. If you also want the occasional short note on pricing, bookkeeping and the money side of a small business, the list is here. No spam — unsubscribe anytime.