The Renter's Ledger

How will the proposed rent change your monthly cost?

See whether rent rises or falls, plus the monthly, annual, and percentage difference when a percentage is defined.

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Rent Increase Percentage Calculator

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Rent change

$250.00 / month increase

11.36% increase, with a $3,000.00 increase over twelve months. This does not check local limits.

Current rent: $2,200.00
Proposed rent: $2,450.00
Percentage change: 11.36% increase

Change any input and calculate again to compare another scenario.

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Check your lease

Compare the estimate with the written terms.

Subtract current rent from proposed rent to find the monthly change, then divide the magnitude by current rent to calculate the percentage when current rent is above zero. The result identifies an increase or decrease and shows the math only.

Need help finding the relevant clause? Review it with LeaseGuard.

How the math works

Rent change percentage = absolute value of (new rent - current rent) / current rent x 100; percentage is undefined when current rent is zero.

Current and proposed rent cover the same unit and payment period.
Recurring fees are excluded unless included in the rent inputs.
The calculator does not apply rent-control or notice rules.

What to keep in mind

This is a planning estimate based on the numbers you enter. The lease, timing rules, and local requirements may affect the real amount or deadline.

Change an input and calculate again to compare another scenario.

Worked examples

$2,200 to $2,450

The increase is $250 per month, about 11.36%, or $3,000 over twelve months.

Compare total housing cost

A rent increase can also change percentage-based fees, deposits, or affordability.

Rent increase questions

How do I calculate a rent increase percentage?

Subtract old rent from new rent, divide by old rent, and multiply by 100.

How much more will I pay in a year?

Multiply the monthly increase by 12, assuming the new amount applies for a full year.

Does this check a local rent cap?

No. This page calculates the change but does not determine whether a proposed increase is allowed.

Last reviewed August 8, 2026 · This calculator provides an informational estimate and is not legal, financial, tax, or housing advice.