Payment Plan Math in South Dakota

2 min read

Published July 14, 2026 • By DocketMath Team

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Quoted from the source law itself. Not legal advice; confirm how it applies to your matter.

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South Dakota payment-plan-math: interest rate is 12; max contract rate is 12.

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Authority and key facts

Citation: SD Codified Laws § 54-3-1.1

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Verified April 29, 2026

  • Interest Rate: 12
  • Max Contract Rate: 12

This page provides general legal information and calculation tools, not legal advice. DocketMath is not a law firm and does not provide legal representation, and using this site does not create an attorney-client relationship. Laws change and exceptions apply, so deadlines and amounts specific to your situation should be confirmed with a licensed attorney in your jurisdiction.

Payment Plan Math in South Dakota

South Dakota law sets a maximum interest rate of 12% for payment plans under SD Codified Laws § 54-3-1.1, which governs the rate a creditor may charge on an installment or deferred-payment agreement. The statute provides the legal ceiling for interest on such arrangements, meaning any payment plan that charges more than this rate would violate state law. The rule applies broadly to deferred payment contracts, but the statute itself sets out the specific conditions and any exceptions. The worked example below illustrates how the 12% rate applies to a typical payment schedule. To estimate interest on a specific payment plan, use the DocketMath calculator with the official statute for reference.

Governing authority

In South Dakota, the payment plan math rule is set by SD Codified Laws § 54-3-1.1. The verified packet cites SD Codified Laws § 54-3-1.1 (https://sdlegislature.gov/Statutes/54-3-1.1).

South Dakota payment plan math: the verified value is 12% under SD Codified Laws § 54-3-1.1. The verified packet cites SD Codified Laws § 54-3-1.1 (https://sdlegislature.gov/Statutes/54-3-1.1).

Estimate your own result: every situation has exceptions that can change the outcome. Use the payment plan math calculator to estimate your specific figure.

This page provides general legal information and calculation tools, not legal advice. DocketMath is not a law firm and does not provide legal representation, and using this site does not create an attorney-client relationship. Laws change and exceptions apply, so deadlines and amounts specific to your situation should be confirmed with a licensed attorney in your jurisdiction.