South Dakota Mechanics Lien Statutes: Deadlines, Venues & Citations
Where South Dakota liens are filed and enforced
A South Dakota mechanics lien is filed with the Register of Deeds in the county where the project sits — 120 days from sdcl § 44-9-15. Filing in the wrong county does not perfect the claim, which matters on projects that straddle county lines. Those are two different clocks against two different offices, and South Dakota claimants lose rights far more often by missing the second one than the first.
South Dakota deadlines by claimant role
For general contractors: Record the lien — 120 days from last furnishing (SDCL § 44-9-19). For subcontractors and suppliers: Record the lien — 120 days from last furnishing (SDCL § 44-9-19); file suit — 6 months from lien recorded (SDCL § 44-9-36); bond notice — 6 months from last furnishing (SDCL § 31-23-3); file suit — 1 years from final settlement (SDCL §§ 5-21-6, 31-23-4); miller act notice — 90 days from last furnishing (40 U.S.C. § 3133(b)(2)); file suit miller act — 1 years from last furnishing (40 U.S.C. § 3133(b)(1)). Every window runs from the claimant's own dates, not the unpaid invoice date.
Rules specific to South Dakota
File claim of lien within 120 days of last furnishing of labor or materials. No preliminary notice required. File claim of lien within 120 days of last furnishing. File suit to enforce lien within 6 months of recording. General public improvements (SDCL ch. 5-21) carry NO claimant notice. On public highway contracts bonded under § 31-23-1, a claimant in contract with a subcontractor but not with the bonded contractor must give the contractor written notice within six months of its last labor or material, stating the amount and the party supplied (§ 31-23-3). Under § 5-21-6 a claimant may not sue until six months after complete performance and final settlement of the contract, and must sue within one year thereafter (read conservatively as one year from final settlement); only one action, and others may join within one year from completion of the work. Highway contracts (§ 31-23-4): suit in the State's name in circuit court, no later than one year after final settlement; claimants may sue once six months pass unpaid after last furnishing (§ 31-23-2). If the public corporation failed to require the bond, action against it within 90 days of acceptance of the work (§ 5-21-2). Second-tier claimants only. No notice = no bond claim. File no sooner than 90 days AND no later than 1 year. Public: prime must pay sub within 30 days of receiving payment. Interest accrues on late public payments.
How South Dakota notices must be served
South Dakota requires 60 days (post-npc) — Notice of Right to Claim Lien. Accepted delivery for the notices tracked here: Registered or Certified Mail, postage prepaid, or any manner authorized for service of process; Certified Mail, Return Receipt Requested. Service runs to the Contractor only (remote claimants on public highway contracts, SDCL ch. 31-23). Keep the proof of service in the project file — South Dakota disputes over whether a notice was properly served are decided on that documentation.
Public projects in South Dakota
No lien attaches to public property in South Dakota. On public state local and public federal work the remedy is a payment bond claim instead — bond notice within 6 months of last furnishing, served on the Contractor only (remote claimants on public highway contracts, SDCL ch. 31-23) (SDCL § 31-23-3). 5 public-project deadlines are tracked for South Dakota.
South Dakota statute citations
The South Dakota deadlines above come from SDCL § 44-9-19, SDCL § 44-9-36, SDCL § 31-23-3, SDCL §§ 5-21-6, 31-23-4, 40 U.S.C. § 3133(b)(2), 40 U.S.C. § 3133(b)(1), SDCL § 5-26-10, SDCL § 5-26-8. Statutes are amended periodically — verify current text before relying on any date, and consult a licensed South Dakota construction attorney on a specific project.
Frequently Asked Questions
How long do you have to file a mechanics lien in South Dakota?
120 days — SDCL § 44-9-15. The filing goes to the Register of Deeds in the project's county. See SDCL § 44-9-19. The clock runs from the claimant's own last furnishing or completion, not the invoice date.
Where do you file a mechanics lien in South Dakota?
With the Register of Deeds in the county where the property is located. Recording in the wrong county does not perfect the lien.
Does South Dakota require a preliminary notice?
Yes — 60 days (post-NPC). Notice of Right to Claim Lien. Accepted service includes Registered or Certified Mail, postage prepaid, or any manner authorized for service of process.
How long do you have to enforce a South Dakota mechanics lien?
6 years — § 44-9-26. A recorded lien left unenforced past that window generally expires and can expose the claimant to slander-of-title risk if it stays on record.
When must retainage be released in South Dakota?
Retainage released within 45 days of substantial completion. 10% maximum retainage on public contracts. (SDCL § 5-26-8).