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Rent Increase Calculator
Work out a rent increase in seconds, either as a fixed percentage or from the change in a price index such as the CPI. Optional caps and trigger thresholds mirror common indexation clauses.
Results
- New monthly rent
- €978.50
- Increase per month
- €28.50
- Increase per year
- €342.00
- Effective increase
- 3.00%
| Year | Monthly rent | Annual rent |
|---|---|---|
| +1 | €978.50 | €11,742.00 |
| +2 | €1,007.85 | €12,094.26 |
| +3 | €1,038.09 | €12,457.09 |
| +4 | €1,069.23 | €12,830.80 |
| +5 | €1,101.31 | €13,215.72 |
This calculator does the arithmetic only. Whether, when and by how much rent may be increased depends on your lease and local law, including notice periods and caps.
Runs entirely in your browser. No data is sent to a server.
How it works
- Enter the current monthly rent.
- Choose a percentage increase, or enter the index value at the last adjustment and the current index value.
- Optionally add a maximum allowed increase (cap) and, for index clauses, a minimum change that triggers an adjustment.
- Read the new rent and the increase per month and per year, plus a five-year projection.
FAQ
How do I calculate an index-linked rent increase?
Multiply the current rent by the new index value and divide by the index value at the last adjustment: new rent = rent × new index ÷ old index. Both values must come from the same index series and base year.
Where do I find the index values?
Index-linked clauses usually name a specific index, such as a national consumer price index published by the statistics office. Use the values for the months your lease specifies.
What is a cap on a rent increase?
A cap limits how much the rent may rise in one step, for example set in the lease or by local rules. If the calculated increase is higher, the calculator applies the cap instead.
Can I raise the rent whenever I want?
Usually not. Leases and local law often restrict how often and by how much rent can rise and require written notice. Check your contract and local rules, or ask a professional.
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