Missouri Late Fee Calculator
Your late fee
$62.50
Paid 12 days late; the lease has no grace period.
- Days past due
- 12 days
- Grace period ends
- No grace period
- Earliest fee date
- October 20, 2026
- Lease late fee
- 5% of $1,250.00 = $62.50
- Rent + late fee
- $1,312.50
Missouri: RSMo chapters 441 and 535 contains no late fee provision, so there is no legal cap or waiting period to apply; only your lease terms count.
Late rent notice builder
[Your name or company]
Date: October 31, 2026
To: [Tenant name]
[Rental property address]
Re: Overdue rent for [Rental property address]
Dear [Tenant name],
This letter is a reminder that the rent of $1,250.00 for [Rental property address] was due on October 19, 2026. As of October 31, 2026, $1,250.00 of it is still unpaid (12 days past due).
Your lease provides for a late charge, which comes to $62.50.
Amount now due
- Unpaid rent
- $1,250.00
- Late charge
- $62.50
- Total
- $1,312.50
Please pay $1,312.50 at your earliest opportunity.
If this letter crossed with your payment, please disregard it.
Regards,
[Your name or company]
On written contracts, from the due date; on open accounts, after the debt is due AND payment has been demanded.
Late fee breakdown
- Interest owed
- —
- Daily rate
- —
- Total (invoice + interest)
- —
Still unpaid? Generate a formal demand letter
Interest at 9% a year
| Invoice amount | 30 days late | 60 days late | 90 days late |
|---|---|---|---|
| $1,000.00 | $7.40 | $14.79 | $22.19 |
| $5,000.00 | $36.99 | $73.97 | $110.96 |
| $10,000.00 | $73.97 | $147.95 | $221.92 |
Maximum late fee in Missouri — written B2B contracts
No statutory cap
Basis: RSMo 408.035(1)-(2).
About this page
Missouri rent late fee law
Missouri's Revised Statutes chapters on landlord and tenant (441) and on landlord-tenant actions (535) contain no late fee provision, so they neither cap a late rent fee nor give a grace period.
Read in full for this check: Revised Statutes of Missouri, chapter 441 (Landlord and Tenant) and chapter 535 (Landlord-Tenant Actions). Copy read on codes.findlaw.com (not the state's official site) · checked .
Before you send the late rent notice: it is a reminder letter about overdue rent and a late charge, not an eviction notice. A notice to pay rent or quit is a separate document, and Missouri has its own rules for it. Nothing on this page is legal advice.
What Missouri law says about invoice interest
Notwithstanding the provisions of any other law to the contrary, it is lawful for the parties to agree in writing to any rate of interest, fees, and other terms and conditions in connection with any: (1) Loan to a corporation, general partnership, limited partnership or limited liability company; (2) Extension of credit primarily for agricultural, business, or commercial purposes;
RSMo 408.035 lets parties agree in writing to any rate of interest and fees on a loan to a corporation, general partnership, limited partnership or LLC (1) and on any extension of credit primarily for agricultural, business or commercial purposes (2) — no dollar minimum, so B2B trade credit is outside the 10% ceiling regardless of amount or of whether the debtor is an entity or a sole proprietor. The exemption requires a written agreement; with no writing, the 9% default under 408.020 applies.
Not legal advice. Figures were last verified on the date shown; check the cited statute before charging a late fee.