Invoicing in South Dakota

Built-in handling of SD sales tax (4.2% state rate) and statutory late fees.

State sales tax
4.20%
Late fee max
1.5%/mo
Metros covered
2
Written contract req.
No
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South Dakota compliance at a glance

  • Sales tax: 4.20% state rate. State 4.2%; applies broadly to services. Combined commonly 6-7%.
  • Late fees: Up to 1.5% per month. (S.D. Codified Laws §54-3-4) Default 10%/yr; no usury cap (contract rates allowed).
  • Prompt-pay law: South Dakota Prompt Payment Act (S.D. Codified Laws §5-26-1; §44-9A for construction). Construction subs paid within 30 days of GC receiving payment.

South Dakota metros

South Dakota guides