# Late fee calculator for rent > A late fee on rent can be a flat amount, a percent of the rent, a charge for each day late, or a mix. Enter the rent, the days late and whichever fees your lease sets, with a cap if it has one, to get the late fee and the total owed. Many places limit late fees. Page: https://pdfinish.com/late-fee-calculator Last updated: November 1, 2026 ## The formulas in words - Percent fee = monthly rent times the percent. - Daily fees = the fee per day times the days late. - Fees added together = flat fee plus percent fee plus daily fees. - Late fee = the fees added together, or the cap if you enter one and the total is higher. - Rent plus late fee = monthly rent plus the late fee. ## Worked example Rent is $1,800 and it is 10 days late. The lease has a 5% fee and $10 for each day late, with a cap of $150. The percent fee is $1,800 times 0.05, which is $90.00, and the daily fees are $10 times 10, which is $100.00. Together that is $190.00, which is above the cap, so the late fee is $150.00 and the total owed is $1,950.00. ## How do I calculate a late fee on rent? Add up the parts your lease sets. A flat fee is the same every time, a percent fee is the rent times the percent, and a daily fee is the amount per day times the days late. With $1,200 rent, a $50 flat fee and $5 a day for 5 days, the fee is $75. ## How do I use a cap? A cap is the most the fee can reach. Enter it, and the calculator uses the cap whenever the fees added together are higher. With a $150 cap and $190 of fees, the late fee is $150. Leave the cap empty if your lease has none. ## How many days late should I enter? Count the days after the date your lease says the fee starts. If the lease gives a grace period, start counting when it ends. Rent due on the 1st with a fee that starts on the 6th and is paid on the 10th is 4 days late, or 5 if the 6th counts as a day. ## Is there a limit on late fees? In many states and cities there is, such as a cap, a grace period or a rule about what counts as reasonable. Rules differ by place and by lease. This calculator does not state any limit, so check your local rules or ask a lawyer before you charge a fee. ## Put the numbers on paper - [Put it in writing: late rent notice template](https://pdfinish.com/templates/late-rent-notice): tell the tenant what is owed and by when. - [Lease agreement template](https://pdfinish.com/templates/lease-agreement): set the late fee terms in writing before rent is due. - [Rent receipt template](https://pdfinish.com/templates/rent-receipt): record the payment when it arrives. - [Rent increase calculator](https://pdfinish.com/rent-increase-calculator): work out the next rent when the lease renews. - [PDF tools and templates for landlords](https://pdfinish.com/for-landlords): the paperwork for a rental in one place. - [All business calculators](https://pdfinish.com/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. ## Common questions ### Is the late fee 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. ### Can I use more than one kind of fee? Yes. Fill in any mix of a flat fee, a percent of rent and a fee per day, and the calculator adds them. Leave a box empty if it does not apply. You need at least one kind of fee to see a result. ### What does the Excel download include? Pro members can download a spreadsheet with your inputs in cells and live formulas for the percent fee, the daily fees, the late fee after the cap and the total owed. 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 whether a fee is allowed where you live. Ask a qualified adviser about your own situation.