Number Lease Break Calculator
Breaking a lease is a negotiation between two numbers: the termination fee in your lease, and your legal liability for the remaining rent — which in most states shrinks because the landlord must try to re-rent. This calculator prices both sides honestly.
In most US states a landlord has a duty to mitigate: they must make a reasonable effort to re-rent, and your liability generally stops when a new tenant starts (you may still owe reletting costs and any rent shortfall if the new rent is lower). A handful of states historically allowed the full term; leases with an early-termination clause give you a fixed-price exit instead. Nothing here is legal advice — your lease and your state’s statute are the authorities, and local legal-aid clinics review leases cheaply.
How it works
Path A — the fee: if your lease has an early-termination clause, the exit price is fixed: fee months × rent (plus any stated reletting fee). Path B — walk away and rely on mitigation: liability = rent × the months until a replacement tenant starts, plus reletting cost, capped at the full remaining term. The deposit offsets the walk-away path dollar for dollar up to its amount. Compare the two out-of-pocket figures, then read the lease again: the clause usually also requires written notice (often 30–60 days) and rent current to the exit date.
Method & worked example
Method: Fee path = fee months × rent + any stated reletting fee. Walk-away liability = rent × months until a replacement tenant starts + reletting fee, capped at the full remaining term (rent × months left + reletting). Out of pocket on the walk-away path = liability − deposit, floored at $0. Both paths exclude rent owed through your notice/exit date.
Worked example: $1,800 rent, 7 months left, 2-month fee: the fixed exit is $3,600; the unmitigated exposure is $12,600 — and a 2-month re-rental cuts that liability to about the same $3,600.
When to use this
- A job, relationship or purchase is pulling you out mid-lease.
- Your lease has a termination clause and you want its true price.
- You are weighing a fixed fee against the mitigation gamble.
- A landlord’s settlement demand needs a numbers-based reply.
How to use it, step by step
- Enter rent and months remaining.
- Enter the lease’s termination fee in months (0 if there is no clause).
- Set a realistic re-rental time for your market — 1 month in a hot market, 2–3 in a slow one.
- Enter the deposit held so the out-of-pocket is honest.
- Compare paths; then negotiate from the cheaper one, in writing.
What the inputs mean
| Input | What it is | Typical values |
|---|---|---|
| Fee months | The lease’s fixed early-termination charge | 1–2 months typical; 0 = no clause |
| Months to re-rent | How long the unit likely sits before a replacement starts | 1 hot market; 2–3 slow or winter |
| Reletting fee | Stated advertising/agent cost in the lease | $0–$500 |
| Deposit | Amount held that offsets walk-away liability | Usually 1 month’s rent |
Another worked example
No clause: $1,500 rent, 8 months left, replacement in 2 months, $250 reletting — liability $1,500 × 2 + $250 = $3,250, and the $1,500 deposit brings the out-of-pocket to $1,750. Against the theoretical $12,000 full-term exposure, the mitigation duty is worth about $8,750 on this lease.
Frequently asked questions
Is paying the termination fee or risking the remaining rent cheaper?
On $1,800 rent with 7 months left and a 2-month fee: the fee path is a fixed $3,600. Walking away exposes you to $12,600 in theory — but with a replacement tenant in 2 months, real liability is closer to $3,600 plus reletting. The fee buys certainty; mitigation often matches it in practice, with risk attached. The calculator prices both so you can choose with numbers.
What does "duty to mitigate" mean for me?
In most states the landlord cannot simply let the unit sit empty and bill you for the whole term — they must try, reasonably, to find a new tenant. Your liability is the gap: months empty × rent, plus reletting costs, plus any shortfall if the new tenant pays less. Keep evidence of the listing and showings; it is the record that caps your exposure.
My lease has no termination clause. What then?
Then Path B is your only structured option: give written notice, cooperate with showings, and help find a replacement (a qualified applicant you bring speeds everything). In the worked example: $1,500 rent, 8 months left, replacement in 2 months + $250 reletting = $3,250 liability; a $1,500 deposit offsets it to $1,750 out of pocket.
Can the landlord keep my deposit AND charge the fee?
Generally the deposit secures damages and unpaid obligations — it is not a bonus on top of a paid termination fee unless the lease clearly structures it that way and state law allows it. Most states require an itemized deposit accounting within a set window (often 14–30 days). If the accounting looks like double-charging, that itemization is what a small-claims filing or legal-aid letter quotes.
Does breaking a lease hurt my credit?
An unpaid balance sent to collections does; a negotiated, paid exit normally does not, though it can appear in tenant-screening histories. The cheapest credit protection is a written settlement: amount, date, "paid in full" language, signed. Get it before money moves, not after.
What if I am leaving for the military, a job loss, or an unsafe unit?
Different rules, often better ones. Servicemembers have federal early-termination rights on orders (SCRA). Many states grant exits for domestic violence, stalking, or a landlord’s failure to maintain habitability. Job loss alone usually is not a legal exit — it is a negotiation, and landlords often prefer a fee-funded clean break to a default. Ask early, in writing.
How much notice do I have to give?
Whatever the lease says — 30 to 60 days is typical for the termination-clause path, and the fee is often due with the notice or on the exit date. Missing the notice period can void the clause and drop you back to full liability. Calendar it from the actual document, not from memory.