South Dakota Mechanics Lien
Deadlines & Filing Rules

Every notice, deadline, and recording requirement for a South Dakota construction lien, drawn from SDCL §§ 44-9-15, 44-9-23, 15-2-13 and the same rule engine that calculates deadlines for our filing customers.

South Dakota lien rules at a glance

Preliminary notice
Not required to preserve lien rights
Lien filing deadline
within 120 days after last furnishing labor or materials
Notarization
Required
The lien claim must be sworn to under oath
Where to record
Register of deeds for the county
E-recording
Varies by county
Ask the recording office whether it accepts electronic recording before you rely on it.
Enforcement deadline
Within 6 years after last furnishing labor or materials

Who can file a mechanics lien in South Dakota

Lien rights depend on where you sit in the contracting chain. Tenant-ordered work can reach the owner's interest in South Dakota only where the owner consented to or required the improvements.

Claimant Lien rights in South Dakota
General contractor (direct contract with the owner) Yes
Subcontractor (hired by the general contractor) Yes
Sub-subcontractor (hired by a subcontractor) Yes
Material supplier to the owner Yes
Material supplier to the general contractor Yes
Material supplier to a subcontractor Yes

South Dakota mechanics lien deadlines

Not required to preserve lien rights.

Calculate your South Dakota deadlines

Enter your role and project dates to turn the rules below into calendar dates. For other states, use the mechanics lien deadline calculator.

Project type

Choose your role to see which dates you need.

These dates come from the same rules our lien filing service uses. They are not moved for weekends or holidays. Deadlines turn on facts specific to your project. Confirm with counsel before relying on them.

Mechanics lien filing deadline

The last day the lien can be recorded against the property.

Who Project type Deadline
All claimants All projects Within 120 days after last furnishing labor or materials

South Dakota does not require a notice of intent before recording a lien, but sending one is often what gets the invoice paid.

Recording and enforcing a South Dakota lien

Recording the lien

Record with the register of deeds for the county. Whether electronic recording is accepted varies by county, so confirm with the recording office and build mailing time into the deadline. The lien must be notarized. The lien claim must be sworn to under oath.

After recording

South Dakota does not require a separate notice after the lien is recorded, though most claimants send one anyway to prompt payment. To keep the lien alive it must be enforced by lawsuit within 6 years after last furnishing labor or materials.

Wrongful lien exposure

We found no dedicated wrongful-lien penalty in South Dakota's lien statute. An owner can still ask a court to remove an inflated or baseless lien, so claim only what you are owed.

Practitioner notes for South Dakota

In South Dakota, a contractor, subcontractor or supplier keeps a lien only by filing a lien statement within 120 days after doing the last work or furnishing the last materials (SDCL § 44-9-15). The statement is filed with the register of deeds in the county where the property is located. It must be verified under oath and list the amount owed, the first and last dates of work, the property and an itemized account (§ 44-9-16). Before filing, mail a copy to the owner by registered or certified mail and attach the post office receipt to the statement (§ 44-9-17). If the owner or the prime contractor filed a notice of project commencement, sub-subcontractors and suppliers to subcontractors must send a notice of furnishing to the named contractor, with a copy to the owner, within 60 days after their last work or materials (§ 44-9-53). The lien must be asserted in court within 6 years after the last item of work shown on the lien statement (§ 44-9-24). The owner can shorten that sharply: after a written demand to sue, the claimant has 30 days to start the action or the lien is forfeited (§ 44-9-26). Once a lien is paid, the holder must deliver a satisfaction within 10 days after written demand, or face damages, attorney's fees and a $100 penalty (§ 44-9-22). Whether South Dakota imposes a separate penalty for filing an unfounded mechanics lien is unclear, so confirm with counsel.

These notes summarize the statute as we read it.

Statutory sources: SDCL §§ 44-9-15, 44-9-23, 15-2-13. Read the South Dakota lien statute. Deadlines turn on facts specific to your project. Confirm with counsel before relying on them.

File your South Dakota mechanics lien

We calculate the South Dakota deadlines from your project dates, prepare the lien on the correct form, and handle recording. Self-serve from $99, or full service with recording and notices handled for you from $299.

South Dakota mechanics lien FAQ

How long do I have to file a mechanics lien in South Dakota?
The South Dakota lien must be recorded within 120 days after last furnishing labor or materials. The same deadline applies to every claimant.
Do I need to send a preliminary notice in South Dakota?
No. South Dakota does not require a preliminary notice to preserve lien rights, although sending one is still an effective way to get paid before a lien becomes necessary.
Does a South Dakota mechanics lien need to be notarized?
Yes. The lien must be notarized before it is recorded. The lien claim must be sworn to under oath.
Where is a mechanics lien filed in South Dakota?
With the register of deeds for the county. Whether electronic recording is accepted varies by county, so check with the recording office and allow time for mailing and processing when working back from your deadline.
How long is a South Dakota mechanics lien valid?
A South Dakota lien must be enforced through a foreclosure lawsuit within 6 years after last furnishing labor or materials. If no suit is filed by then, the lien expires and can no longer be used to force payment.
Can a subcontractor file a mechanics lien in South Dakota?
Yes. Subcontractors have lien rights in South Dakota, and so do sub-subcontractors.

This page summarizes South Dakota lien law for general information and is not legal advice. Deadlines depend on your role, project type, and dates; confirm them against the statute or with counsel before relying on them.