South Dakota Landlord-Tenant Laws
South Dakota Security deposits
South Dakota caps residential security deposits at one month's rent, and the landlord must return the deposit — or give a written statement of the specific reason for keeping any of it — within 21 days after the tenancy ends and the landlord receives the tenant's mailing address or delivery instructions.
South Dakota Rent increase notice
South Dakota landlords must give month-to-month tenants at least 30 days' written notice before the end of a monthly period to raise the rent, under an express lease-modification statute (SDCL 43-32-13) that covers 'the terms, rent, and conditions' of the lease.
South Dakota Late fees
South Dakota has no statute capping residential late fees and no statutorily mandated grace period — late charges are purely a matter of the lease agreement, bounded only by ordinary contract-law limits on penalty clauses.
South Dakota Entry notice
South Dakota requires landlords to give tenants reasonable notice before entering a rental unit, and 24 hours' written notice is presumed reasonable — but the 24-hour figure is a rebuttable presumption, not a flat statutory minimum, and the lease can set mutually agreed alternate notification methods or entry times.
How this record was verified: Direct read of statute text served by the official South Dakota Legislature site (sdlegislature.gov, SDLRC codified laws): the complete text of every section of SDCL chapter 43-32 (43-32-1 through 43-32-37, including all decimal sections and the repealed 43-32-7) read via the site's chapter endpoint, with every load-bearing section (43-32-6.1, 43-32-24, 43-32-13, 43-32-32, 43-32-12, 43-32-15) fetched a second, independent time via the per-section endpoint — all figures matched verbatim across reads (one month's rent cap; twenty-one days / forty-five days deposit clocks; $200 punitive ceiling; thirty-day modification notice with fifteen-day tenant termination right; twenty-four-hour written-notice entry presumption). SDCL 6-1-13 and 6-1-12 (rent-control preemption) double-read the same way. The 2026 amendment to 43-32-24 additionally pinned character-for-character from the official enrolled 2026 SB 4 (SL 2026, ch 179) and its introduced strike/underline version via the Legislature's document API; bill history from the official action log (signed by the Governor 2026-02-12; no effective-date clause, so effective 2026-07-01 under SDCL 2-14-16, read from the official site). Session sweeps run against the official bill lists: 2026 regular session (666 bills — SB 4 enacted and incorporated; HB 1231 on assistance-animal documentation tabled 2026-02-11, dead), 2025 regular session (571 bills — no landlord-tenant bills), 2025 special session (2 bills, corrections real estate only). Negative findings (no deposit interest or separate-account rule, no late-fee statute or grace period, no enumerated entry-reasons list) verified against the full chapter text in both reads. Note: sdlegislature.gov statute pages are JavaScript-rendered, but all text was read from the same official host's JSON/HTML API endpoints — no mirrors were needed or used.