Late Fees on Invoices in Iowa
What Iowa contractors and small businesses need to know about charging late fees, interest rates, prompt payment laws, and mechanics lien deadlines.
Max Interest Rate
5% per annum (default); higher by written agreement
Small Claims Limit
$6,500
Small Claims Court (District Court)
Mechanics Lien Deadline
90 days from the last day of furnishing labor or materials (2 years for GCs)
Iowa Prompt Payment Act
Iowa Prompt Payment Act, Iowa Code § 573.12 et seq.
Iowa requires public entities to pay within 30 days. Private construction follows contract terms, with mechanics lien rights under Iowa Code Chapter 572.
Late fee rules for Iowa invoices
Iowa allows contractual late fees. The relatively low default interest rate makes it important to specify a late fee clause in your contract.
Iowa's default interest rate is 5% per annum. Written contracts may specify up to 5% above the Federal Reserve discount rate for consumer transactions.
Important disclaimer
This page provides general information about Iowa late fee rules. It is not legal advice. Laws change, and your specific situation may have unique factors. For disputes involving significant amounts, consult a licensed attorney in Iowa.
Demand letters and mechanics liens in Iowa
Iowa does not require a formal demand letter, but a preliminary notice is required for subcontractors within 30 days of first furnishing.
Mechanics lien deadline: 90 days from the last day of furnishing labor or materials (2 years for GCs). A Mechanics Lien Statement must be filed with the county recorder.
Sample late fee clause for Iowa invoices
“Payment is due within the terms specified above. A late fee of 1.5% per month (5% per annum (default); higher by written agreement maximum per Iowa law) will be applied to all balances remaining unpaid after the due date. Pursuant to Iowa Code § 572.1 et seq. (Mechanics' Liens), the undersigned reserves all rights to pursue collection including but not limited to mechanics lien filing, small claims action (up to $6,500 in Small Claims Court (District Court)), and referral to collections.”
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Start Free TrialFrequently asked questions — Iowa
What is the maximum late fee I can charge on an invoice in Iowa?▾
In Iowa, Iowa's default interest rate is 5% per annum. Written contracts may specify up to 5% above the Federal Reserve discount rate for consumer transactions. Always disclose late fee terms in your contract or invoice before work begins.
Does Iowa have a prompt payment act?▾
Yes. Iowa requires public entities to pay within 30 days. Private construction follows contract terms, with mechanics lien rights under Iowa Code Chapter 572.
What is the small claims court limit in Iowa?▾
The small claims court limit in Iowa is $6,500. Claims are filed in Small Claims Court (District Court). You generally do not need an attorney for small claims.
How long do I have to file a mechanics lien in Iowa?▾
In Iowa, 90 days from the last day of furnishing labor or materials (2 years for GCs). A Mechanics Lien Statement must be filed with the county recorder.
Do I need to send a demand letter before filing a lien in Iowa?▾
Iowa does not require a formal demand letter, but a preliminary notice is required for subcontractors within 30 days of first furnishing.