Home › Tools › Auto loan calculator › South Dakota

South Dakota auto loan calculator

Estimated monthly car payment in South Dakota

$435/mo

60 months at 7.54% APR · amount financed $21,699

State tax 4% on $25,000$1,000.00
Total sales tax$1,000.00
Dealer doc fee$699.00
Total interest$4,413.96
Total cost (price + tax + fees + interest)$41,113

No local vehicle tax in SD; state rate is the full tax. Source: South Dakota DOR, Motor Vehicle Excise Tax.

Used car $20k New car $35k $50k truck + $15k trade $30k, 84 months

Loan breakdown

Vehicle price
$35,000
− Trade-in
$10,000
− Down payment
$5,000
+ Sales tax (full trade-in credit applied)
$1,000.00
+ Doc fee
$699.00
+ Title/registration
$0.00
= Amount financed
$21,699.00
Monthly payment
$435.22
Total of payments
$26,112.96
Total interest
$4,413.96

Tax is applied to the price minus any allowed trade-in credit; whether doc fees, rebates and add-ons are taxable varies by state and isn't modeled. Assumes the trade-in has no loan balance.

Share this result: vaultrubric.com/tools/auto-loan-calculator/south-dakota?price=35000&trade=10000&down=5000&rate=7.54&term=60&tax=4&doc=699&title=0&local=0

South Dakota car loan, at a glance: state vehicle tax 4% (South Dakota 4% motor vehicle excise tax.) A $35,000 car with $5,000 down over 60 months at 7.54% APR is about $644/mo, financing $32,099 incl. $1,400 tax and the $699 doc fee.

Base sales tax: Tax Foundation, Facts & Figures 2026, Table 18 (State & Local Sales Tax Rates), as of January 1, 2026. APR: Federal Reserve G.19, 60-month new car loan rate at commercial banks (FRED RIFLPBCIANM60NM), August 2026.

South Dakota car-buying taxes & fees

State vehicle taxSouth Dakota 4% motor vehicle excise tax. Confidence: medium.
4%
General state sales taxTax Foundation, Facts & Figures 2026, Table 18 (State & Local Sales Tax Rates), as of January 1, 2026. Local taxes may add.
4.2%
Trade-in tax creditBest-effort. Confidence: medium.
Allowed
Doc fee capNo doc-fee cap found in our best-effort check; many states require only disclosure.
None found
Title & registrationVaries by vehicle weight, value, age and county; not reliably sourced for every state, so enter your own estimate.
Editable

Sources & as-of dates

Base sales tax: Tax Foundation, Facts & Figures 2026, Table 18 (State & Local Sales Tax Rates) (as of January 1, 2026).
Vehicle-specific rates, trade-in rules and doc-fee caps: best-effort compilation from state DMV/revenue rules (Best-effort, checked October 12, 2026); e.g. Virginia DMV, Michigan Treasury Form 485, California CDTFA Regulation 1610.
Default APR: Federal Reserve G.19, 60-month new car loan rate at commercial banks (FRED RIFLPBCIANM60NM), 7.54% (August 2026). Data file: state-tax-rates.json.
Local vehicle tax (no local vehicle tax): South Dakota DOR, Motor Vehicle Excise Tax (retrieved October 12, 2026). South Dakota's 4% motor vehicle excise tax is statewide; municipal sales taxes don't apply. Data file: sd.json.

South Dakota mortgage calculator → · South Dakota car sales tax calculator · All states

FAQ

What is the car sales tax in South Dakota?

4% at the state level. South Dakota 4% motor vehicle excise tax. Statewide general sales tax: 4.2% (Tax Foundation, Facts & Figures 2026, Table 18 (State & Local Sales Tax Rates), as of January 1, 2026).

Does South Dakota give a sales tax credit for a trade-in?

Yes. South Dakota generally taxes the price minus your trade-in value. (Best-effort; verify with the state DMV or revenue department.)

Does South Dakota add county or city tax on a car?

No. South Dakota's 4% motor vehicle excise tax is statewide; municipal sales taxes don't apply. (South Dakota DOR, Motor Vehicle Excise Tax).

Does South Dakota cap dealer doc fees?

No doc-fee cap found in our best-effort check; many states require only disclosure. This calculator defaults to $699, editable.

What is the monthly payment on a $35,000 car in South Dakota?

With $5,000 down, no trade-in, the $699 doc fee, 4% state tax and 7.54% APR for 60 months, about $644 a month ($6,530 total interest). Local taxes and registration add to this.

Is this financial advice?

No. These are estimates, not financial advice.

Estimates, not financial advice. Taxes, insurance, PMI and fees vary by lender, county and city; confirm with your lender, dealer and state agency before acting.