Rex says
Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.
Try a scenario
Click to load — tweak from there.Inputs
Result
New monthly rent
$2,310.00
Extra rent per month
$110.00
Extra rent per year
$1,320.00
Cost if the tenant leaves
$4,110.00
Years of the increase to cover a turnover
3.1
Net first-year gain if they leave
-$2,790.00
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How to use this
- 1Enter current monthly rent ($).
- 2Enter increase (%).
- 3Enter turnover cost if they leave ($).
- 4Enter vacancy if they leave (months).
- 5Read your new monthly rent on the right — it updates as you type.
- 6Hit Share to keep the scenario or send it to someone.
About this calculator
A rent increase only pays off if the tenant stays. One month of vacancy plus turnover costs typically wipes out a 5% raise for the entire year.
Worked example
Using the values the calculator loads with:
Inputs
- Current monthly rent: 2200 $
- Increase: 5 %
- Turnover cost if they leave: 1800 $
- Vacancy if they leave (months): 1
Results
- New monthly rent: $2,310.00
- Extra rent per month: $110.00
- Extra rent per year: $1,320.00
- Cost if the tenant leaves: $4,110.00
- Years of the increase to cover a turnover: 3.1
- Net first-year gain if they leave: -$2,790.00
What each field means
Inputs
- Current monthly rent ($)
- The current monthly rent used in the calculation, measured in $. Starts at 2200 $ so you have a working example on load.
- Increase (%)
- The increase used in the calculation, measured in %. Starts at 5 % so you have a working example on load. Accepted range: 0–50 %.
- Turnover cost if they leave ($)
- The turnover cost if they leave used in the calculation, measured in $. Starts at 1800 $ so you have a working example on load.
- Vacancy if they leave (months)
- The vacancy if they leave (months) used in the calculation. Starts at 1 so you have a working example on load. Accepted range: 0–6.
Results
- New monthly rent
- Returned as a money amount in US dollars and shown as the headline result. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Extra rent per month
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Extra rent per year
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Cost if the tenant leaves
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Years of the increase to cover a turnover
- Returned as a decimal number. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
- Net first-year gain if they leave
- Returned as a money amount in US dollars. It recalculates instantly whenever you change an input, so you can compare scenarios without reloading.
FAQ
How does the rent increase calculator work?
A rent increase only pays off if the tenant stays. One month of vacancy plus turnover costs typically wipes out a 5% raise for the entire year. The underlying maths is: New rent = Current × (1 + increase%); break-even = added annual rent ÷ monthly rent.
What do I need to enter?
4 values: current monthly rent, increase, turnover cost if they leave, and vacancy if they leave (months). Each field starts with a sensible default, so you can change one number at a time and watch the result move.
What does the new monthly rent result mean?
It is returned as a money amount in US dollars and updates live as you edit the inputs, so you can compare two or three versions of a scenario in a few seconds.
Is this calculator free, and do I need an account?
Yes, it's free, and no account is required. Nothing you type is stored on our servers — the maths runs entirely in your browser.
How accurate is the result?
It applies the standard formula exactly, so the arithmetic is precise. Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
Who is this tool for?
It's built for anyone comparing money scenarios before committing — budgeting a payment, sanity-checking a quote, or seeing what a change in rate or term actually costs.
Accuracy and limitations
- Results are estimates before tax, fees, and inflation unless an input explicitly covers them.
- Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.
- This is educational maths, not financial advice. Check anything contractual with the lender or your accountant.
Related tools
Cite this calculator
Writing about this topic? Grab a citation — every link helps keep these tools free.
RevenueLab. (2026). Rent Increase Calculator. Retrieved from https://www.revenuelab.fyi/toolbox/landlord-rent-increase
<p>Source: <a href="https://www.revenuelab.fyi/toolbox/landlord-rent-increase" target="_blank" rel="noopener">Rent Increase Calculator — RevenueLab</a> (2026).</p>
Source: [Rent Increase Calculator — RevenueLab](https://www.revenuelab.fyi/toolbox/landlord-rent-increase) (2026).