Social Security
No state income tax
Federal rules still apply
No state income tax · no state income tax · property 1% · sales 6.11%. Plan RMDs, Roth conversions, and estate tax before retiring in South Dakota.
By Sammy S. · Founder · AuthorUpdated for 2026
No state income tax on retirement income; no state estate or inheritance tax. Rank #1 on this site's retiree-friendliness score (#1 is most favorable).
Social Security
No state income tax
Federal rules still apply
Retirement income
No state income tax
Pensions / IRA / 401(k)
Estate / inheritance
No state estate/inheritance tax
Federal exempt ~$15M
Retiree rank
#1
Lower score = more friendly
Compare any two states
Social Security, pensions/IRA, estate taxes, and supporting property/sales rates.
No state income tax
South Dakota has no broad state income tax, so Social Security is not taxed at the state level. Federal tax rules still apply.
Federally, up to 85% of Social Security can be taxable based on combined income. State treatment is a separate layer on top of IRS rules.
No state income tax
South Dakota does not levy a broad state income tax on pensions or retirement-account withdrawals.
Federal income tax on Social Security and retirement distributions can apply regardless of state rules.
No state estate/inheritance tax
South Dakota does not currently levy a state inheritance tax.
Federal estate tax may still apply above about $15M for 2026, regardless of state rules.
Income-tax savings can be offset by higher housing or consumption taxes. These are statewide benchmarks—not the exact levy on a specific home or shopping basket.
1%
Owner-occupied housing benchmark
South Dakota property tax profile →6.11%
State + average local combined rate
South Dakota sales tax profile →Living in South Dakota does not remove federal tax on taxable Social Security, traditional IRA/401(k) withdrawals, capital gains, or a taxable estate above the federal exemption. South Dakota rules sit on top of IRS rules.
Up to 85% of benefits may be taxable based on combined income—same framework in every state.
No state income tax
No state income tax
No state estate/inheritance tax
South Dakota has no broad state income tax, so Social Security is not taxed at the state level. Federal tax rules still apply.
South Dakota does not levy a broad state income tax on pensions or retirement-account withdrawals.
Statewide effective property tax is about 1%. Check local homestead or senior relief.
Combined average sales tax is about 6.11%. Necessities may be taxed differently.
South Dakota currently has no state estate or inheritance tax; federal estate tax may still apply.
State tax on conversions is often limited in South Dakota, but federal tax still applies.
#1 on this site’s Social Security, retirement-income, and estate/inheritance score (#1 is most favorable).
A planning label—not a guarantee for every AGI level or filing status.
Statewide benchmarks for cash-flow planning; your locality may differ.
Every local income tax, circuit breaker, homestead credit, or private pension nuance.
Rank #1 · No state income tax · No state income tax
Compare South Dakota vs Alaska →Rank #1 · No state income tax · No state income tax
Compare South Dakota vs Florida →Rank #1 · No state income tax · No state income tax
Compare South Dakota vs Nevada →Rank #1 · No state income tax · No state income tax
Compare South Dakota vs New Hampshire →Confirm current South Dakota return instructions and local rules. Rankings are educational planning aids.