Do I owe rent for the entire remaining lease?

In most states, no. Landlords have a legal duty to mitigate damages by making reasonable efforts to re-rent the unit. Once a new tenant moves in, your liability for rent generally stops. You typically owe rent only for the months the unit sits genuinely vacant plus any agreed fees.

What is a re-letting or early-termination fee?

Many leases include a flat early-termination fee, often one or two months' rent, that lets you exit by paying it. A re-letting fee covers the landlord's cost to advertise and screen a new tenant. Read your lease — if it offers a buyout clause, that fixed amount may be cheaper than open-ended rent liability.

What does duty to mitigate mean for my bill?

It means a landlord cannot simply leave the unit empty and bill you for every remaining month. They must try to re-rent at a fair price. If they re-rent quickly, your owed rent shrinks to the vacant period. If they refuse reasonable applicants, a court may reduce or eliminate the claim against you.

Can the landlord keep my security deposit too?

A landlord may apply your deposit to unpaid rent or actual damages, but not as an extra penalty beyond your real liability. If the deposit exceeds what you owe after mitigation, the balance must be returned. Enter your deposit so the tool can offset it against the total.

Are there fee-free reasons to break a lease?

Yes. Active-duty military relocation under the SCRA, documented domestic violence, an uninhabitable unit, or landlord harassment can let you terminate without the usual penalty in many states. Those legal exceptions override standard lease-break math, so consult an attorney if one applies.

What is the Lease Break Penalty Calculator?

Estimates your financial exposure when breaking a lease early — remaining rent owed, re-letting and early-termination fees, and the mitigation credit a landlord must apply once a new tenant is found. For tenants, landlords, and real estate attorneys. It runs free in your browser on Gera Tools, with nothing uploaded.

Lease Break Penalty Calculator

Name: Lease Break Penalty Calculator
Creator: Gera Tools
License: https://creativecommons.org/licenses/by/4.0/

Get one useful tool a week

Like this tool? Enter your email and we'll send you one genuinely useful Gera tool a week — plus a link to come back to this one. No spam, one-click unsubscribe any time.

Leaving a rental before the lease ends rarely means paying every remaining month — most states require landlords to re-rent the unit and credit you once they do. This calculator estimates your realistic exposure: rent for the vacant months, any early-termination or re-letting fees, and the offset from your security deposit.

How it works

Your liability is the rent for the months the unit stays empty plus agreed fees, reduced by your deposit. The landlord’s duty to mitigate caps the vacant period:

vacant_rent = monthly_rent × vacant_months
total_fees  = early_termination_fee + reletting_fee
gross       = vacant_rent + total_fees
net_owed    = gross − security_deposit_applied

The fewer months the unit sits empty, the lower your bill, because once a new tenant moves in the landlord can no longer charge you for those months.

Worked example

Suppose you pay $1,800/month and have 6 months left on your lease. You decide to leave early. Your lease includes a $900 re-letting fee and no flat early-termination buyout. Your landlord re-rents the unit after 2 months of vacancy, and you paid a $1,800 security deposit.

vacant_rent = $1,800 × 2 = $3,600
total_fees  = $0 (no ETF) + $900 (re-letting) = $900
gross       = $3,600 + $900 = $4,500
net_owed    = $4,500 − $1,800 deposit = $2,700

In this scenario you owe $2,700 rather than the $10,800 (6 months × $1,800) you might have feared. The landlord’s duty to mitigate — re-renting within 2 months — saved you more than $7,500 in exposure.

What changes your number most

Vacancy duration is the biggest variable. Every month the unit sits empty adds one month’s rent to your bill. Help the landlord find a tenant quickly — cooperate with showings, leave the place clean, and document your cooperation.
Buyout clauses. Many leases include a flat early-termination fee of one or two months’ rent. If yours does, compare that fixed amount against the open-ended vacant-rent calculation above: if vacancy is likely to exceed the buyout threshold, the buyout is cheaper.
Security deposit offset. Your deposit reduces the net owed but is not a penalty cap — if your liability exceeds the deposit the landlord can pursue the rest.

Legal exceptions that may eliminate the penalty

In many jurisdictions you can terminate a lease without the standard penalties if any of the following apply:

Active-duty military relocation under the Servicemembers Civil Relief Act (SCRA)
Documented domestic violence (most US states have statutory protections)
Uninhabitable conditions that the landlord failed to repair after notice
Landlord’s own material breach of the lease (e.g. entering without proper notice repeatedly)

These statutory exceptions override normal lease-break math. Consult a tenant-rights attorney or local housing authority if any of them apply before negotiating or paying anything.