# Missouri Mechanics Lien Deadline Calculator

This Missouri lien deadline calculator is for original contractors, subcontractors, suppliers, laborers and equipment rental companies. Enter your role, the type of project and your last day of work or delivery, and it shows each deadline under RSMo chapter 429 with the statute section next to it.

Original contractors also tell us whether they gave the owner the statutory Notice to Owner before the first payment. Subs and suppliers on a repair, remodel or addition to an owner-occupied home tell us whether the owner signed a Consent of Owner, because without it there's no lien. If you already filed the lien, add that date and we'll show when the suit to enforce is due.

It takes about 20 seconds, and it's free. When you're ready to file, LevelSet Collections has your 10-day notice of intent served on the owner and files the verified lien statement with the right circuit clerk, in every Missouri county and the City of St. Louis. Liens are $199 to $500 all-inclusive.

Free interactive calculator: https://levelsetcollections.com/missouri-lien-deadline-calculator/

## What sinks Missouri liens

- Mailing the notice of intent instead of having it served, or filing before the 10 days have run.
- A sub on an owner-occupied remodel with no signed Consent of Owner.
- A general contractor that never gave the Notice to Owner before getting paid.
- Filing a St. Louis City lien in St. Louis County, or the reverse.
- Letting six months pass after filing without suit.

## FAQ

**How long do I have to file a mechanics lien in Missouri?**

Within six months after the indebtedness accrued, filed with the clerk of the circuit court of the county where the property sits (RSMo 429.080). Rental equipment liens have a shorter window: 60 days after the last equipment is removed.

**What is the Missouri 10-day notice?**

Everyone except the original contractor gives the owner written notice at least 10 days before filing the lien, served by an officer authorized to serve process or by a competent adult who signs an affidavit of service (RSMo 429.100).

**How long does a Missouri lien last?**

Suit to enforce has to be filed within six months after the lien is filed, or the lien ends (RSMo 429.170).

Public projects: you can't lien public property, but you can still get paid. Ask us about Freedom of Information Act and public-records requests, and Miller Act and state Little Miller Act bond claims.

Liens $199 to $500 all-inclusive. Call or text (469) 694-8003, Mon–Fri 8am–7pm Central.

This page is general information, not legal advice.