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SD · SERVICE-AGMT · Updated July 2026 · Free

South Dakota Service Agreement

Review Status: PendingAuthor: Editorial TeamMethodology: Statutory Verification

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South Dakota at a glance: Default Interest: 15% per year (S.D.C.L. § 54-3-4) · Governing Law: South Dakota Codified Laws Title 54

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Overview

Service Agreements in South Dakota

South Dakota service agreements are governed by Title 54 of the South Dakota Codified Laws. Late fees must comply with the 15% statutory cap unless written (S.D.C.L. § 54-3-4).
Key Facts

South Dakota Service Agreement — Quick Reference

RequirementSouth Dakota Rule
Default Interest15% per year (S.D.C.L. § 54-3-4)
Governing LawSouth Dakota Codified Laws Title 54
Legal Requirements

South Dakota Legal Requirements

  • Late fees exceeding 15% per year must be in writing to be enforceable.
Governing Laws

South Dakota Governing Laws

S.D.C.L. § 54-3-4
Legal Rate of Interest
Defines contract default interest rates.

Read the full text of these laws at Cornell Law School's South Dakota legal resources or your state legislature's official website.

Questions & Answers

South Dakota Service Agreement — Frequently Asked Questions

What is the default contract interest rate in South Dakota?

The default rate is 15% per annum.