Rent increase calculator
A rent increase can be given as a percent or as a new rent in dollars. Enter the current rent and either one, and this calculator works out the other, plus how much more the tenant pays each month and each year. Many places limit increases, so check your local rules before you send a notice.
Your files
What the tenant pays now.
To find the new rent in dollars.
To find the percent. Leave the percent empty.
Results
Enter the current rent and either the increase percent or the new rent to see your results.
Editable spreadsheet
Pro gives you this calculation as an Excel file with live formulas, so you can change a number and watch every result update. It opens in Excel and Google Sheets.
Get Pro for the Excel fileThese figures are estimates for planning. They are not financial, tax or investment advice. Many states and cities limit how much rent can rise and how much notice a tenant must get. Check your local rules before you send a notice. Working out a result is free and never counted. Saving the PDF counts as one of your free uses; Pro has no limit.
The formulas in words
- New rent = current rent times (1 plus the increase percent).
- Increase percent = new rent divided by current rent, minus 1.
- Change per month = new rent minus current rent.
- Change per year = the monthly change times 12.
How do I calculate a rent increase percentage?
Subtract the current rent from the new rent, then divide by the current rent. Going from $1,275 to $1,340 is $65 more, and $65 divided by $1,275 is about 5.1%. Type both rents into the calculator above and it shows the percent, the monthly change and the yearly change.
How do I turn a percent into a new rent?
Multiply the current rent by one plus the percent as a decimal. A 4% increase on $1,800 is $1,800 times 1.04, which is $1,872. The extra $72 a month is $864 over a year. Enter the current rent and the percent above, and leave the new rent box empty.
Is there a limit on how much rent can go up?
In many states and cities there is, and some also set how much notice a tenant must get. Rules differ by place and can depend on the lease and the building. This calculator does not state any limit. Check your local rules or ask a lawyer before you choose a figure.
Can I use it for a rent decrease?
Yes. Enter a negative percent, like -3, or a new rent that is lower than the current rent. The results then show a negative change per month and per year. The same formulas apply, so the percent is still the new rent divided by the current rent, minus 1.
Put the numbers on paper
- Put it in writing: rent increase notice template: tell the tenant the new rent and the date it starts.
- Lease agreement template: set the rent and any renewal terms in writing.
- Rent receipt template: record each payment at the new rent.
- Prorated rent calculator: work out rent when a tenant moves in or out mid-month.
- PDF tools and templates for landlords: the paperwork for a rental in one place.
- All business calculators: the full list of free calculators.
Key facts
- Privacy: We don't sell your data. This tool runs in your browser, so your files stay on your device and are never uploaded.
- Ads: none. No third-party ads and no ad cookies.
- Limits: working out a result is free, needs no account and is never counted. Saving the result as a PDF counts as one of your free uses. Emailing it to yourself is optional. Pro has no limit on uses with Pro.
- Price: free to start. The editable Excel version with live formulas is part of Pro, $2.99 a month or $24 a year. Pro cancels in one click.
- Results are estimates for planning, not financial, tax or investment advice.
Last updated:
By the PDFinish editorial team · Reviewed
Common questions
Is the rent increase calculator free?
Yes. Working out a result is free, needs no account and is never counted. Saving the result as a PDF counts like any other PDFinish file under the free allowance shown on this page. The editable Excel version is part of Pro.
Are my numbers uploaded?
No. The maths runs in your browser and nothing you type is sent to our servers. If you choose Email it to me, only the finished PDF is sent, to the address you give, and we delete it after 7 days.
What if I enter both a percent and a new rent?
The new rent wins. The percent shown is worked out from the new rent and the current rent, and the calculator tells you it did that. To find a new rent from a percent, leave the new rent box empty.
What does the Excel download include?
Pro members can download a spreadsheet with your inputs in cells and live formulas for the new rent or percent, the monthly and yearly change and the yearly totals. Change a number in Excel or Google Sheets and every result updates.
Is this legal or financial advice?
No. The results are estimates for planning. They are not legal, financial or tax advice, and they do not check any local limit on rent increases. Ask a qualified adviser about your own situation.