Rent Increase Calculator
Rent Increase Calculator
Work out the new rent after an increase, the rise in money and as a percentage, and what the rent and the total paid become over several renewals, yearly or every 11 months.
Rent increase
$25,000 a month, 5% at each renewal, renewed every 11 months, 5 renewals
Rent after renewals
- R
- the current monthly rent
- p
- the increase at each renewal, as a decimal
- L
- months in each term: 12, or 11
- yearly rise
- (1 + p)12 ÷ L − 1
Worked example
$25,000 a month, 5% at each renewal, renewed every 11 months, 5 renewals
New rent = 25,000 × 1.05 = $26,250, an increase of $1,250 a month
Every 11 months, 5% a renewal is (1.05)12/11 − 1 = 5.47% a year
After 5 renewals: 25,000 × 1.055 = $31,907 a month
Total over the current term and 5 renewals (66 months): $18,70,526; with yearly renewals it would be $20,40,574 over 72 months
Rent of 25,000 after 5 renewals
| Increase per renewal | As a % a year, 11-month terms | After 5 renewals of 11 months | After 5 renewals of 12 months |
|---|---|---|---|
| 5% | 5.47% | $31,907 | $31,907 |
| 7% | 7.66% | $35,064 | $35,064 |
| 10% | 10.96% | $40,263 | $40,263 |
Rent increases, 11-month agreements and the Model Tenancy Act
A rent increase is usually agreed as a percentage at each renewal. The calculator applies it to the previous rent, so increases compound, and shows the rent after the renewals you enter, what it would be in today’s money at the inflation rate you choose, and the total you would pay. If you know only the new rent the landlord has asked for, choose ‘the new rent’ and the percentage is worked out from it.
Why 11 months? Under section 17(1)(d) of the Registration Act, 1908, a lease for more than a year, or from year to year, or reserving a yearly rent, must be registered. An agreement for 11 months falls outside that, which is why it is so common in Indian cities; stamp duty under state law may still apply. The side effect is that a fixed percentage at each renewal comes round every 11 months, so 5% a renewal is 5.47% a year. The table shows the effect.
The Model Tenancy Act, 2021, approved by the Union Cabinet on 2 June 2021, is a model law for states, not a law in force everywhere: housing is a state subject, and each state decides whether to adopt it. Under the model, rent and its revision follow the written tenancy agreement, which must be reported to a Rent Authority, and the security deposit is capped at two months’ rent for a home and six months’ for commercial premises. The ‘two months of the new rent’ line is that cap, for reference; the rule that applies to you is your state’s rent law and your agreement. Some older state rent control laws limit increases for protected tenancies. To see whether the new rent fits your budget use the rent affordability calculator, and to weigh renting against buying the rent vs buy calculator. This is arithmetic on the figures you enter, not financial advice.
Frequently asked questions
How do I calculate a rent increase?
Multiply the current rent by (1 + the increase). 25,000 with a 5% increase is 25,000 × 1.05 = 26,250, a rise of 1,250 a month.
How do I find the percentage if I know the new rent?
Divide the new rent by the old and subtract 1. 27,500 against 25,000 is 27,500 ÷ 25,000 − 1 = 10%.
Why are rental agreements for 11 months?
A lease for more than one year must be registered under section 17 of the Registration Act, 1908. An 11-month agreement avoids compulsory registration. It does not remove stamp duty, and renewing every 11 months brings increases round faster.
Is there a legal limit on rent increases?
Not a general one. Under the Model Tenancy Act, 2021, rent revision follows the tenancy agreement; the Act is a model that each state may or may not adopt. Some state rent control laws limit increases for older protected tenancies.
Related calculators
References
- Model Tenancy Act, 2021 (Ministry of Housing and Urban Affairs; approved by the Union Cabinet on 2 June 2021): written agreement reported to the Rent Authority; revision of rent; security deposit capped at two months’ rent (residential) and six months’ (non-residential). PRS Legislative Research, Legislative Brief on the Model Tenancy Act, 2021.
- Registration Act, 1908, section 17(1)(d): compulsory registration of leases from year to year, for a term exceeding one year, or reserving a yearly rent.
- Central-bank inflation targets used as default inflation by currency: Reserve Bank of India (4% CPI, flexible inflation targeting framework); U.S. Federal Reserve (2% PCE); European Central Bank (2%); Bank of England (2% CPI); Bank of Canada (2%); Reserve Bank of Australia (2–3%); Bangko Sentral ng Pilipinas (3% ± 1). Actual inflation often runs above target.