South Dakota Tax Guide 2026

The no-tax state

South Dakota is unique in imposing NONE of the following: • Personal income tax (no constitutional provision; never enacted) • Corporate income tax • Personal property tax (no tax on business equipment, machinery, inventory, or personal-use property) • Franchise tax on corporations or LLCs • Estate tax (repealed 2001 conformity) • Inheritance tax (never enacted) • Gift tax • Intangible property tax Residents file NO state income tax return. Businesses file NO state income tax return. The state primarily relies on: • Sales tax (state + local) • Property tax (heaviest among the no-income-tax states; ~1.14% effective) • Bank franchise tax (specific to financial institutions) • Tourism taxes and gaming taxes (Deadwood) • Federal transfer payments (significant for state budget) • Trust services revenue (SD trust industry pays meaningful fees and supports related industries) This structural simplicity makes SD attractive for high-income individuals (no income tax on wages, SE, investment), retirees (no tax on pensions, IRAs, Social Security), business owners (no entity-level tax), and trust beneficiaries (perpetual trust shield).

Sales tax

State rate 4.2% (SDCL §10-45-2, reduced from 4.5% effective July 1, 2023, sunsetting under SB 1 of 2024 — could return to 4.5% if not extended; verify current rate). Municipalities can add up to 2% local sales tax. Combined averages 6.40% statewide. Notable cities: • Sioux Falls: 6.2% combined • Rapid City: 6.2% (plus tourism tax 1%) • Aberdeen: 6.2% • Watertown: 6.2% • Brookings: 6.2% • Pierre: 6.2% Groceries: TAXABLE at state 4.2% + local — SD is one of few states still taxing groceries. Bipartisan repeal efforts have failed multiple times. Prescription drugs: exempt. Clothing: taxable. Services: broadly taxable — SD taxes more services than most states (legal, accounting, advertising, repair, construction services). Economic nexus (SDCL §10-64-2): $100,000 in cumulative sales OR 200 transactions. SOUTH DAKOTA was the plaintiff state in South Dakota v. Wayfair (2018) — the landmark case that allowed states to require remote sellers to collect sales tax based on economic activity rather than physical presence. SD's framework became the national model.

Property tax

Statewide average effective ~1.14% — moderate, higher than the average no-income-tax state (because property tax must compensate for absence of income tax). Counties: Minnehaha (Sioux Falls): ~1.32%, Pennington (Rapid City): ~1.36%, Lincoln: ~1.25%, Brown (Aberdeen): ~1.50%. SD uses full-market-value assessment. Annual assessment increases capped under SDCL §10-13-35: 3% per year for residential, 8% per year for non-residential (Property Tax Stabilization). Owner-Occupied Homestead Exemption: $1,500 reduction in assessed value (modest). Elderly/Disabled Reduction (SDCL §10-6B): refundable credit for low-income seniors (65+) and disabled — phases out at higher incomes. Veterans Property Tax Exemption: full exemption for disabled veterans. Property tax 'freeze' for elderly: SDCL §10-6A allows qualifying age 65+ or disabled homeowners with income ≤ ~$30,000 to FREEZE the assessed value of their primary residence — no further increases for as long as they qualify. No personal property tax (business equipment, inventory, household goods all exempt).

Trust industry — South Dakota's unique advantage

South Dakota is the leading US trust jurisdiction with $700B+ in trust assets (Federal Reserve data 2024). Key reasons: 1. NO RULE AGAINST PERPETUITIES (SDCL §43-5-8, since 1983): SD trusts can exist FOREVER — no requirement to terminate within a generation+21 years as in most common-law states. Dynasty trusts can shelter wealth indefinitely. 2. NO STATE INCOME TAX on trust income — SD-resident trusts pay $0 SD tax on their income, whether distributed or accumulated. 3. DOMESTIC ASSET PROTECTION TRUSTS (DAPT, SDCL §55-16): allows settlors to create self-settled trusts that PROTECT FROM CREDITORS after a 2-year fraudulent-transfer lookback (one of the shortest in the US). 4. DIRECTED TRUSTS (SDCL §55-1B): allows separation of trustee, investment director, distribution committee, and protector — supporting complex family-office structures. 5. PRIVACY: court records on SD trusts can be sealed; no public trust registries. 6. NO FORCED INHERITANCE rules outside of community property (which SD doesn't have). 7. DECANTING (SDCL §55-2-15): trustees can transfer assets from one SD trust to another with modified terms — allows reforming old trusts. Trust company industry (Sioux Falls, Pierre): dozens of independent trust companies serve global clients. Major institutional players also have SD trust subsidiaries. For a UHNW family, SD trust planning can shelter multi-generational wealth from state income tax (no SD tax + many states can't tax SD-resident trusts), estate tax (perpetual trust never gets re-included), and creditors (DAPT).

Business considerations

No corporate income tax — but the BANK FRANCHISE TAX (SDCL §10-43) applies to financial institutions: • 6% on first $400M of net income • 4.5% on next $200M • 4% on next $200M • 0.25% on amounts over $1.2 BILLION Uniquely STEEP REGRESSIVE structure attracted Citibank and others to base credit-card and trust operations in SD historically — the 0.25% effective rate at scale produces favorable tax economics for very large financial institutions. LLC fee: $50 + $50 annual report (SDCL §47-34A-1207). Corporation: $25 annual report (SDCL §47-1A-1622). Apportionment: not applicable for general corporations (no income tax). For sales tax purposes, destination-based sourcing. Unemployment tax: 0.0%–9.95% on $15,000 wage base. Deadwood Gaming Tax (SDCL §42-7B): 9% on gross gaming revenue + various other gaming fees. Lodging tax: 1.5% state on tourism + local. The full picture: SD offers the most tax-favored structure in the US for most income levels, with the trade-off being modest property tax and full-rate sales tax (including groceries). Wealthy individuals frequently establish SD residency or SD trust situs to capture these benefits.

Worked example: Connor McKinney, Sioux Falls-based remote tech executive (single, 2026)

Connor earns $385,000 W-2 from a CA-based employer, working 100% remotely from his Sioux Falls home. He realizes $220,000 LTCG from selling appreciated index funds. Owns a $525,000 Sioux Falls home (homestead).

Federal: ordinary income tax on $385k wages + 20% LTCG + 3.8% NIIT on portion above MAGI threshold. California: since Connor works 100% remotely from SD and doesn't physically work in CA, CA wages are not CA-sourced (post-COVID rule). However, if the CA employer treats wages as CA-source absent paperwork, there could be initial withholding — Connor would file CA non-resident return claiming $0 CA-source wages. Net CA tax: $0 (assuming proper sourcing documentation). South Dakota: Wage income: $0 SD tax (no income tax) LTCG: $0 SD tax Total SD income tax: $0 Property tax on $525k Sioux Falls home @ ~1.32% effective: ~$6,930/yr (less $1,500 homestead exemption × millage = minor reduction). Sales tax in Sioux Falls (6.2%): incurred transaction by transaction. Connor's combined state burden: $0 income tax (vs ~$50,000 in CA if CA-sourced, ~$15,000 in NY, ~$25,000 in MA) + ~$7,000 property + sales tax. Estate planning bonus: if Connor sets up a SD dynasty trust to receive his future wealth, the trust can grow tax-free and pass to multiple generations without estate tax — leveraging SD's perpetual trust + no state income tax + DAPT protections.

Statute references

• Sales tax 4.2% (state) — SDCL §10-45-2
• Economic nexus (Wayfair plaintiff state) — SDCL §10-64-2
• Bank franchise tax (tiered) — SDCL §10-43-4
• Perpetual trusts (no Rule Against Perpetuities) — SDCL §43-5-8
• Domestic Asset Protection Trust — SDCL §55-16
• Directed Trusts (multi-fiduciary) — SDCL §55-1B
• Trust decanting — SDCL §55-2-15
• Property tax assessment cap — SDCL §10-13-35
• Elderly property tax freeze — SDCL §10-6A
• Deadwood Gaming Tax — SDCL §42-7B

Related pages

• State Tax Comparison →
• Multi-State Allocation →
• Estate Tax Calculator →