# Rent Increase Calculator

URL: https://speedycalculator.com/calculators/finance/rent-increase/
Last updated: 2026-10-25

> The rent increase calculator works out a new rent after a percentage or fixed increase, the extra cost per month and year, and whether the increase is above inflation or a rent-control cap.

## Inputs

- Current monthly rent
- Increase given as
- Increase
- Inflation or legal cap to compare (%)

## Results

- New monthly rent
- Increase per month
- Increase per year
- Increase in percent
- Compared with the cap

## Formula

```
New rent = current rent × (1 + increase %)
Increase per year = (new − current) × 12
Real increase = (1 + increase) ÷ (1 + inflation) − 1
```

## Explanation

Rent increases are often limited by law in rent-controlled areas – for example California caps most increases at 5% plus inflation (maximum 10%) a year, and Oregon at 7% plus inflation (maximum 10%).

### How to use the Rent Increase Calculator

- **Current monthly rent**
- **Increase given as**
- **Increase**
- **Inflation or legal cap to compare**

Results update as you type, and every field accepts the units shown in its menu.

### How it works

Enter the current monthly rent, the increase (as a percentage or amount) and inflation or your local cap.

### Tips

- Get a written loan estimate and compare the APR, not just the interest rate.
- Include property tax, insurance, HOA fees and maintenance in your monthly budget.
- A larger down payment lowers the payment and can remove mortgage insurance.
- Rates change daily – use a current quote for the most accurate result.

### Common mistakes to avoid

- Looking only at the monthly payment instead of the total cost of the loan.
- Forgetting closing costs and fees.
- Assuming home prices always rise.

### Inputs explained

FieldWhat to enterCurrent monthly rentAmount in your currencyIncrease given asChoose one: Percentage, AmountIncreaseA numberInflation or legal cap to compareIn %

### What each result means

- **Increase per month** = [New monthly rent] - [Current monthly rent]
- **Increase per year** = ([New monthly rent] - [Current monthly rent])×12
- **Increase in percent** = ([New monthly rent]÷[Current monthly rent] - 1)×100

### Example values

How the main result changes when **Current monthly rent** changes and everything else stays at the example values above:

Current monthly rentNew monthly rent9009361,3501,4041,8001,8722,2502,3402,7002,8083,6003,744

## Worked example

Inputs — Current monthly rent: $1,800; Increase given as: Percentage; Increase: 4; Inflation or legal cap to compare: 3 %.

Results — **New monthly rent = $1,872.00**; Increase per month = $72.00; Increase per year = $864.00; Increase in percent = 4 %; Compared with the cap = Above the cap.

## FAQ

**How much can a landlord raise rent?**
It depends on local law; many areas have no limit, others cap increases.

**How much notice is needed?**
Often 30–90 days; check your state or local law.

**How do I calculate a rent increase percentage?**
(New rent − old rent) ÷ old rent × 100.

**What formula does the Rent Increase Calculator use?**
New rent = current rent × (1 + increase %).