10Doors Calculators Rent Increase Calculator

Rent Increase Calculator

A rent increase looks small month to month and meaningful over a year — and the lease term is where it pays off. Enter your current rent and the planned increase below.

New monthly rent
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Increase per month
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Annual income added
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The math

New rent = current rent + (current rent × % increase), or current rent + the flat dollar amount. Multiplied across a lease term and multiple units, even a modest raise compounds — 5% on $1,500 adds $900/year per unit.

The legal side

Most states require written notice before an increase — commonly 30 days, but 60 or 90 in some states, and rent-controlled cities have their own caps and rules. You generally can’t raise rent mid-lease; increases take effect at renewal. Our state-by-state rent increase notice templates carry the specific notice period and requirements for each state.

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Frequently asked questions

How much can I raise the rent?

In most states without rent control, there’s no cap — but the market and your notice obligations still apply. 3–5% annually is a common norm; larger jumps drive turnover, which usually costs more than the raise.

How much notice do I have to give?

Typically 30 days before the increase takes effect, but it varies by state (60–90 days in some). Check your state’s requirement before sending notice.

Can I raise rent mid-lease?

Generally no — unless the lease itself allows it or the tenant agrees. Increases normally take effect at renewal.

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This template is provided for general informational purposes and does not constitute legal advice. Landlord-tenant law changes and local ordinances may impose additional requirements — verify current state and local rules before serving any notice. Last reviewed September 2026.