Lease Break Penalty Estimator
Estimate the total financial penalty you may owe if you break your lease early, including forfeited deposit, remaining rent liability, and re-letting fees.
Formula
Daily Rent = Monthly Rent ÷ 30
Short-Notice Penalty = Daily Rent × max(0, Required Notice − Notice Given)
Remaining Rent Liability = Monthly Rent × Months Remaining
Effective Liability = if Cap > 0 → min(Remaining Rent Liability, Remaining Rent Liability × Cap%) else Remaining Rent Liability
Re-letting Fee = Monthly Rent × (Re-letting Fee % ÷ 100)
Gross Penalty = Effective Liability + Short-Notice Penalty + Re-letting Fee
Net Penalty = max(0, Gross Penalty − Mitigation Credit)
Out-of-Pocket = max(0, Net Penalty − Security Deposit)
Assumptions & References
- A 30-day month is used to convert monthly rent to a daily rate, consistent with standard lease conventions.
- Landlords in most U.S. jurisdictions have a duty to mitigate damages by actively seeking a replacement tenant; the mitigation credit reflects expected rent recovered from a new tenant (see Restatement (Second) of Property § 12.1).
- Many states cap a tenant's rent liability at 1–3 months' rent upon early termination; the Liability Cap field models this (e.g., 50% = 50% of remaining rent).
- Re-letting fees (also called lease-break or administrative fees) typically range from 50%–200% of one month's rent depending on the lease agreement and jurisdiction.
- Security deposits applied here assume the landlord uses the full deposit toward the penalty; actual allocation may differ based on state law and property condition.
- This tool provides an estimate only and does not constitute legal advice. Consult a licensed attorney or tenant rights organization for jurisdiction-specific guidance.
- References: Uniform Residential Landlord and Tenant Act (URLTA); state-specific landlord-tenant statutes (e.g., CA Civil Code § 1951.2, NY RPL § 227-e).