A free late-fee research tool for landlords in all 50 states and Washington D.C.
Charging a late fee is one of the most common landlord tasks — and one of the easiest ways to break the law. Every state sets its own cap on late fees, grace periods and notice requirements, and those rules change over time. A landlord who charges $75 when the state caps late fees at 5% of rent can end up in front of a judge, owing the tenant money instead of collecting it.
LandlordFee helps with an initial check in under 30 seconds. Enter your state, rent and dates to see the statewide rule recorded in our dataset, the grace period we found and a source link you can verify. No signup or paywall is required.
We prefer current statutes, agency guidance and court materials. Some states do not set a numeric cap, and some entries still rely partly on secondary surveys; those pages use cautious language rather than inventing a formula. The dataset received a structural and source review in August 2026, while individual laws remain subject to change.
This is educational information, not legal advice or a guarantee that a fee is enforceable. Before charging a fee, verify the linked source, the lease, local ordinances and any rules that apply to subsidised or regulated housing.
LandlordFee is free. The calculator runs entirely in your browser — your rent amount and dates never leave your device. We keep the tool simple and ad-supported where relevant, and we never sell or share your personal information.
Questions, corrections or feedback? Email us at yanzhong603628@gmail.com.