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Rent Increase Calculator

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Enter your current rent and the increase percentage (or new amount) to see the change clearly.

Rent Increase Calculator

Live
New rent
$1,575.00
Increase amount
$75.00
New annual cost
$18,900
Some cities and states cap allowable rent increases by law - check local rent control rules if this applies to you.

The formula

New rent = Current rent x (1 + Increase % / 100)
Example

$1,500 rent with a 5% increase: new rent = 1,500 x 1.05 = $1,575, an increase of $75/month.

Step-by-step guide

  1. Enter your current monthly rent.
  2. Enter the increase percentage stated in your renewal notice.
  3. Read your new rent, the dollar increase, and the new annual total.

Working backward: finding the percentage from two rent amounts

If your landlord gave you a new dollar amount instead of a percentage, you can still use this tool in reverse: divide the dollar increase by your current rent, multiply by 100, and enter that as the percentage to confirm the math checks out. This is also a useful way to compare two rent increases of different sizes on an apples-to-apples basis - a $100 increase means something very different on a $900 rent versus a $3,000 rent.

Common mistakes

Assuming any percentage increase is automatically legal - many jurisdictions cap annual rent increases for existing tenants, especially in rent-controlled or rent-stabilized units.
Forgetting that fees (parking, pet rent, utilities) are often billed separately from base rent - a rent increase notice may not include changes to these separate charges.

Frequently asked questions

Is there a legal limit to how much rent can increase?

It depends entirely on your location - some cities and states have rent control or rent stabilization laws capping annual increases, while many other areas have no percentage cap at all for market-rate units. Check your local tenant protection laws.

How much notice does a landlord typically have to give?

This varies by jurisdiction and lease terms - common requirements range from 30 to 90 days' written notice before a rent increase takes effect, but always check your specific local law and lease agreement.

Can I negotiate a rent increase?

Often yes, especially if you have a strong payment history or the increase is above the local market rate - it doesn't hurt to ask, though landlords aren't obligated to negotiate outside of rent-controlled situations.

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