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No local vehicle tax in IA; state rate is the full tax. Source: Iowa Code 321.105A, fee for new registration.
Iowa charges a 5% one-time registration fee on vehicles instead of sales tax. Doc fees, rebates and add-ons may or may not be taxable depending on the state; not modeled.
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Iowa car sales tax, at a glance: 5% state tax on vehicle purchases. Iowa charges a 5% one-time registration fee on vehicles instead of sales tax. Trade-in credit: allowed. A $30,000 car owes about $1,500 in state tax, or $1,000 with a $10,000 trade-in.
Base sales tax: Tax Foundation, Facts & Figures 2026, Table 18 (State & Local Sales Tax Rates), as of January 1, 2026. Vehicle rules: Best-effort, checked October 12, 2026.
| Vehicle price | State tax, no trade | With $10,000 trade-in |
|---|---|---|
| $15,000 | $750 | $250 |
| $20,000 | $1,000 | $500 |
| $25,000 | $1,250 | $750 |
| $30,000 | $1,500 | $1,000 |
| $40,000 | $2,000 | $1,500 |
| $50,000 | $2,500 | $2,000 |
| $60,000 | $3,000 | $2,500 |
State-level tax only; add your county or city rate in the calculator above.
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5% at the state level. Iowa charges a 5% one-time registration fee on vehicles instead of sales tax. Local taxes may add. On a $30,000 car with no trade-in that's about $1,500 in state tax.
Yes. Iowa generally taxes the price minus your trade-in value, so a $10,000 trade-in on a $30,000 car cuts the state tax from $1,500 to $1,000. (Best-effort; verify with the state DMV or revenue department.)
Iowa's statewide general sales tax is 6% (Tax Foundation, Facts & Figures 2026, Table 18 (State & Local Sales Tax Rates), as of January 1, 2026); the rate applied to vehicles is 5%.
No. Iowa's 5% one-time registration fee replaces sales tax; local option sales taxes don't apply. (Iowa Code 321.105A, fee for new registration).
No. Those vary by dealer, county, vehicle weight and value. The auto loan calculator for this state lets you add a doc fee and title/registration.
No. Estimates from best-effort state rules, not tax or financial advice; confirm with your state agency or dealer.
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.