States/South Dakota/21-Day Rule
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South Dakota 21-Day Security Deposit Rule (2026)

Effective under the current codified law following the 2026 amendment, a residential lessor must within 21 days after termination of the tenancy and receipt of the tenant’s mailing address or delivery instructions either return the deposit or provide a written statement showing the specific reason for withholding.

Last reviewed: August 30, 20262 official sources cited
Current deadline21 days

Replaced the prior two-week rule in 2026.

TriggerTermination + address/instructions

Both facts matter.

Timeline checklist

  • Tenancy termination date.
  • Date mailing address or delivery instructions were received.
  • Date deposit was returned or written withholding statement was furnished.
South Dakota changed the residential deposit timeline in 2026. Use the current 21-day rule, not older two-week summaries. Educational information only.

Official sources

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