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
| Field | What to enter |
|---|---|
| Current monthly rent | Amount in your currency |
| Increase given as | Choose one: Percentage, Amount |
| Increase | A number |
| Inflation or legal cap to compare | In % |
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 rent | New monthly rent |
|---|---|
| 900 | 936 |
| 1,350 | 1,404 |
| 1,800 | 1,872 |
| 2,250 | 2,340 |
| 2,700 | 2,808 |
| 3,600 | 3,744 |
Formula
New rent = current rent × (1 + increase %)Increase per year = (new − current) × 12Real increase = (1 + increase) ÷ (1 + inflation) − 1Worked 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.
Frequently asked questions
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 %).