Everything freelancers and small businesses need to know about charging late fees, interest rates, and collecting overdue invoices in Delaware.
This information is provided for general educational purposes only and does not constitute legal advice. Laws change frequently. Consult a licensed attorney in Delaware for advice on your specific situation. Last reviewed: 2026.
Usury laws cap the maximum interest rate that can be charged on overdue payments in Delaware.
No general usury cap
Delaware is widely known as one of the most business-friendly states in the nation and has no general usury cap. Parties are free to contract for any interest rate. The default legal rate of interest when no rate is specified is 5% over the Federal Reserve discount rate (Del. Code tit. 6, § 2301).
Since Delaware has no general usury cap, commercial exemptions are unnecessary. This is a primary reason many businesses and financial institutions incorporate in Delaware.
Understanding what you can and cannot charge for late payments in Delaware.
Delaware allows parties to set late fees at any rate they choose, consistent with its business-friendly approach. Late fees must be contractually agreed upon. While there is no statutory cap, courts may still review fees for unconscionability under general contract law.
No statutory cap. Delaware's lack of a usury limit extends to late fee arrangements.
Delaware courts apply a reasonableness standard under general contract law. While the bar for unconscionability is high in a state with no usury cap, grossly exploitative fees in contracts of adhesion may still be challenged.
Delaware Prompt Payment Act sets deadlines and penalties for late payments in Delaware.
30 days for state contracts.
Interest at 1% per month on late government payments.
Delaware requires state agencies to pay contractors within 30 days of receiving a proper invoice. The Act covers government procurement and public works contracts. Despite the state's generally business-friendly approach, government entities are held to prompt payment standards.
Certain industries in Delaware have additional rules around payment timelines, liens, and collection procedures.
Construction: Delaware's mechanics' lien law (Del. Code tit. 25, § 2711) requires filing within 180 days for subcontractors (no preliminary notice for amounts under $50,000 on commercial projects). Prime contractors have 360 days.
Corporate: Delaware's business-friendly environment, including no usury cap, is a key reason over 65% of Fortune 500 companies are incorporated there. Payment terms in Delaware contracts are highly flexible.
Government contracts: Despite the lack of usury limits in private transactions, Delaware holds government agencies to prompt payment standards with 30-day deadlines and interest penalties.
Use this compliant wording on your invoices to clearly communicate your late fee policy in accordance with Delaware law.
Payment is due within 30 days of invoice date. Invoices unpaid after the due date will incur a late fee of 1.5% per month (18% per annum). Delaware law does not impose a general usury cap, and this rate is agreed upon as a reasonable estimate of costs from managing overdue accounts.
This wording works because it clearly states the rate, when it applies, and references Delaware legal standards. Always ensure your stated rate complies with Delaware's usury limits.
Practical tips for invoicing within Delaware's legal framework.
Before you can charge a late fee in Delaware, your client needs to have agreed to the terms. Include your late fee clause directly on your invoice and in your contract.
Delaware caps interest rates at No general cap (business-friendly). Charging above this limit can void your right to collect interest entirely and may expose you to penalties.
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Compare Delaware's rules with neighboring and commonly referenced states.
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