Interest and Finance Charges in a New York Mechanic’s Lien

Reviewed September 7, 2026.

Lien Law § 3 expressly recognizes principal and interest on the value or agreed price of qualifying labor and materials. That does not make every charge labeled “interest,” “finance charge” or “late fee” automatically lienable.

Establish the legal basis and calculation

Review the contract, invoice terms, payment due dates, credits and applicable law. An enforceable agreed interest provision may support interest on overdue sums. A charge first printed on an invoice is not necessarily an agreed contract term, and a penalty or other unenforceable charge cannot be justified merely by giving it a different name.

The absence of a contractual interest clause does not necessarily eliminate a right to interest in litigation. CPLR 5001 governs prejudgment interest, and CPLR 5004 contains rates and exceptions. Counsel should distinguish the amount stated in the notice, interest accruing on the underlying debt and interest awarded by the court.

Keep a transparent ledger

Show principal separately from interest, identify the rate and accrual dates, and apply payments and credits consistently. Review any compounding, finance-charge, penalty or usury issue before filing. Do not add unsupported charges or claim the same interest twice.

Kushnick Pallaci PLLC assists clients throughout New York with mechanic’s lien preparation and disputes. Contact 631-752-7100 or vtp@kushnicklaw.com.

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