Every US state has its own income tax rules, withholding tables, and payroll deduction requirements — and workers in smaller states deserve the same clear, detailed guidance as those in the most populous ones. The ADP paycheck calculator supports all 50 states, and this guide covers the states that are often overlooked in paycheck calculation discussions: Alabama, Arkansas, Delaware, Hawaii, Idaho, Iowa, Kansas, Kentucky, Louisiana, Maine, Mississippi, Missouri, Montana, Nebraska, New Hampshire, New Mexico, Oklahoma, Rhode Island, South Carolina, and West Virginia.
Whether you are searching for the adp alabama paycheck calculator, adp hawaii paycheck calculator, adp iowa paycheck calculator, or adp south carolina paycheck calculator, this guide explains what drives your state’s paycheck calculation, what rates apply, and what to watch for when using the ADP tool for your specific state.
State tax simplicity varies: Some states in this guide use simple flat rates that make calculations straightforward. Others have graduated brackets, local taxes, or unique deductions that require careful attention to inputs. Read your state’s section for specific guidance.
ADP Alabama Paycheck Calculator
Alabama has a progressive income tax with three brackets: 2% on the first $500 (single) or $1,000 (married), 4% on the next increment, and 5% on income above those thresholds. The adp alabama paycheck calculator and alabama adp paycheck calculator apply these rates to taxable wages. Alabama also has city income taxes in several municipalities — Birmingham imposes a 1% occupational tax, and several other cities have similar levies. The adp paycheck calculator alabama results for Birmingham residents include this city tax on top of state withholding.
Alabama is notable for allowing a federal income tax deduction against state taxable income — meaning the state income tax is calculated on wages after federal income tax is subtracted. This reduces Alabama’s effective state income tax rate somewhat compared to states that calculate state tax on full gross income.
ADP Arkansas Paycheck Calculator
Arkansas has reformed its income tax structure significantly in recent years, moving toward a simpler and lower-rate system. The current top rate is 4.4% (reduced from 5.9% in prior years), with lower rates on smaller income amounts. The adp arkansas paycheck calculator and adp paycheck calculator arkansas apply the current Arkansas bracket structure. Arkansas does not impose significant city income taxes, making the adp paycheck calculator arkansas result a clean combination of federal, state, and FICA withholding.
ADP Delaware Paycheck Calculator
Delaware has a graduated income tax with six brackets ranging from 0% on the first $2,000 to 6.6% on income above $60,000. The adp delaware paycheck calculator and adp paycheck calculator delaware apply these brackets. Delaware is unique in being one of the few states with no sales tax — it compensates with moderate income tax. Wilmington also imposes a city wage tax of 1.25% on earned income for city residents, which the adp delaware paycheck calculator includes when Wilmington is specified as the work or residence location.
ADP Hawaii Paycheck Calculator
Hawaii has one of the most complex and highest income tax structures in the country — 12 tax brackets with rates ranging from 1.4% to 11% at the top level. The adp hawaii paycheck calculator and adp paycheck calculator hawaii apply all 12 brackets. Hawaii’s top rate of 11% on income above $200,000 (single) makes it second only to California in top marginal state income tax rates. Hawaii workers also contribute to the Hawaii Temporary Disability Insurance (TDI) program — a state-specific payroll deduction similar to California’s SDI — which the adp hawaii paycheck calculator factors in.
Hawaii’s cost of living is among the highest in the nation, and the high income tax rates reflect the state’s revenue needs. Workers relocating to Hawaii should use the adp paycheck calculator hawaii to understand the significant impact of state taxes on take-home pay before finalizing their move.
ADP Idaho Paycheck Calculator
Idaho simplified its income tax structure in 2022, moving to a flat rate of 5.8% on all taxable income (reduced from a five-bracket system with a top rate of 6.5%). The adp idaho paycheck calculator applies this flat 5.8% rate. Idaho does not impose local income taxes at the city level, making the adp paycheck calculator results clean and predictable. The flat rate reduction has modestly increased take-home pay for Idaho workers compared to the previous progressive structure.
ADP Iowa Paycheck Calculator
Iowa has been actively reducing its income tax rates, transitioning to a 3.8% flat rate beginning in 2025 after several years of rate reductions from a previous top rate above 8%. The adp iowa paycheck calculator and iowa adp paycheck calculator apply the current applicable rate for the tax year. Iowa’s significant rate reduction over recent years has meaningfully increased take-home pay for workers at most income levels. Iowa does not have significant city income taxes, so the adp paycheck calculator iowa results are state and federal withholding plus FICA.
ADP Kansas Paycheck Calculator
Kansas uses a graduated income tax with two brackets: 3.1% on the first $15,000 (single) and 5.7% on income above that threshold (for 2024, with rates subject to ongoing legislative discussion). The adp kansas paycheck calculator and adp paycheck calculator kansas apply the current Kansas brackets. Kansas does not have significant city income taxes, and the two-bracket structure makes adp paycheck calculator kansas results relatively straightforward alongside federal and FICA withholding.
ADP Kentucky Paycheck Calculator
Kentucky uses a flat income tax rate of 4.0% (reduced from 4.5% in 2024 under a phased reduction plan that continues in subsequent years). The adp kentucky paycheck calculator, adp paycheck calculator kentucky, and adp ky paycheck calculator all apply this current flat rate. Kentucky also has local occupational taxes levied by most cities and counties — Louisville Metro imposes a 2.2% occupational tax, Lexington imposes 2.25%, and other Kentucky municipalities have similar levies. The adp paycheck calculator ky includes these local taxes when the correct municipality is specified.
ADP Louisiana Paycheck Calculator
Louisiana uses a progressive income tax system with rates of 1.85% on the first $12,500, 3.5% on the next $37,500, and 4.25% on income above $50,000. The adp louisiana paycheck calculator and adp paycheck calculator louisiana apply these three brackets. Louisiana allows a deduction for federal income taxes paid against state taxable income — similar to Alabama — which reduces the effective state tax rate. Louisiana does not impose significant municipal income taxes at the city level.
ADP Maine Paycheck Calculator
Maine has a progressive income tax with three brackets ranging from 5.8% to 7.15%. The adp maine paycheck calculator and adp paycheck calculator maine apply Maine’s graduated rate structure. Maine’s top rate of 7.15% applies at relatively moderate income levels, making it a higher-tax state for middle and upper-middle income earners. Maine does not have local income taxes beyond the state level, keeping adp paycheck calculator maine calculations consistent statewide.
ADP Mississippi Paycheck Calculator
Mississippi is transitioning to a flat income tax of 5% (phasing in over several years, down from a previous three-bracket system). The adp mississippi paycheck calculator and adp paycheck calculator mississippi apply the current applicable rate for the tax year. Mississippi does not impose significant local income taxes in most areas. The phased rate reduction means adp paycheck calculator mississippi results will show decreasing state withholding year over year as the phase-in progresses.
ADP Missouri Paycheck Calculator
Missouri uses a graduated income tax structure with rates up to 4.95% (reduced from 5.3% following legislation). The adp missouri paycheck calculator, adp paycheck calculator missouri, and missouri adp paycheck calculator apply Missouri’s bracket system. Kansas City and St. Louis both impose a 1% earnings tax on residents and workers within city limits — the adp paycheck calculator missouri includes this city earnings tax when Kansas City or St. Louis is selected as the work location.
ADP Montana Paycheck Calculator
Montana uses a graduated income tax with rates from 4.7% to 5.9% across two brackets following 2021 tax reform. The adp montana paycheck calculator applies these rates to taxable wages. Montana is notable for having no sales tax — its income tax is the primary state revenue source. Montana does not impose city income taxes, making the adp paycheck calculator for Montana straightforward alongside federal and FICA withholding.
ADP Nebraska Paycheck Calculator
Nebraska uses a graduated income tax with top rates approaching 5.84% (being reduced under ongoing legislation). The adp nebraska paycheck calculator, adp paycheck calculator nebraska, and nebraska adp paycheck calculator apply Nebraska’s bracket structure. Nebraska does not impose significant city income taxes, keeping the adp paycheck calculator nebraska results consistent for workers across the state.
ADP New Hampshire Paycheck Calculator
New Hampshire historically taxed only interest and dividend income — not wages. As of 2025, that investment income tax is fully repealed, making New Hampshire effectively a zero-income-tax state on all income. The adp paycheck calculator nh shows no state income tax on wages for New Hampshire workers — only federal income tax and FICA apply. New Hampshire joins the growing list of states where no state income tax reduces paycheck deductions significantly.
ADP New Mexico Paycheck Calculator
New Mexico uses a graduated income tax with rates from 1.7% to 5.9% across five brackets. The adp new mexico paycheck calculator applies these brackets to taxable wages. New Mexico does not impose significant city income taxes, making the adp paycheck calculator new mexico results state and federal only alongside FICA withholding.
ADP Oklahoma Paycheck Calculator
Oklahoma uses a graduated income tax with a top rate of 4.75% across five brackets. The adp oklahoma paycheck calculator and adp paycheck calculator oklahoma apply Oklahoma’s rate structure. Oklahoma City and Tulsa do not impose separate city income taxes, keeping adp paycheck calculator oklahoma results straightforward. Oklahoma’s relatively moderate top rate makes it a mid-range income tax burden state for workers.
ADP Rhode Island Paycheck Calculator
Rhode Island uses a progressive income tax with three brackets ranging from 3.75% to 5.99%. The adp paycheck calculator ri applies these brackets to taxable wages. Rhode Island does not impose significant local city income taxes. Providence and other Rhode Island cities rely on property taxes rather than wage taxes, so the adp paycheck calculator ri results are consistent statewide.
ADP South Carolina Paycheck Calculator
South Carolina uses a graduated income tax with rates from 0% to 6.4% (being reduced under ongoing legislation toward a target of 6%). The adp south carolina paycheck calculator, adp sc paycheck calculator, adp paycheck calculator sc, sc adp paycheck calculator, and adp paycheck calculator south carolina all apply South Carolina’s current bracket structure. South Carolina does not impose significant city income taxes, making the adp sc paycheck calculator results consistent across the state.
ADP West Virginia Paycheck Calculator
West Virginia uses a graduated income tax with rates from 2.36% to 5.12% (recently reduced from a higher five-bracket structure). The adp paycheck calculator wv and adp wv paycheck calculator apply these brackets to taxable wages. West Virginia has been actively cutting income tax rates, with the reductions funded by strong severance tax revenues. Workers should expect the adp wv paycheck calculator to reflect decreasing state withholding as the phased cuts take effect in subsequent tax years. West Virginia does not impose significant city income taxes.
Frequently Asked Questions
Why does the ADP Kentucky paycheck calculator show both state and local taxes?
Kentucky is one of the more locally taxed states, with most cities and counties imposing occupational taxes on wages earned within their limits. The adp kentucky paycheck calculator includes the relevant local occupational tax when you specify your work location. Louisville, Lexington, and other Kentucky municipalities all have their own rates — make sure your work city is correctly entered in the adp ky paycheck calculator for accurate local tax withholding.
Does the ADP Hawaii paycheck calculator include TDI withholding?
Yes. Hawaii’s Temporary Disability Insurance (TDI) is a mandatory state payroll deduction similar to California’s SDI. The adp hawaii paycheck calculator includes TDI withholding automatically for Hawaii workers. The TDI rate is set annually and applies to wages up to a wage base established by the state. This deduction funds short-term disability benefits for Hawaii workers.
How does the ADP Iowa paycheck calculator reflect recent rate changes?
ADP updates its calculator tools each year when new rates take effect. The adp iowa paycheck calculator reflects Iowa’s current-year flat rate, which has been decreasing under legislated phase-in reductions. Workers should re-run their adp paycheck calculator iowa estimate at the start of each calendar year to see the updated withholding — the decreasing rates translate directly into higher take-home pay year over year.
Is the ADP New Hampshire paycheck calculator really zero state tax?
Yes. As of 2025, New Hampshire has no income tax on wages. The adp paycheck calculator nh shows only federal income tax and FICA withholding for New Hampshire workers. The state’s former investment income tax (on interest and dividends) has been fully repealed. For everyday wage earners, New Hampshire is now functionally equivalent to Texas, Florida, and other no-income-tax states.
How does the ADP South Carolina paycheck calculator handle ongoing rate reductions?
South Carolina is in the middle of a multi-year rate reduction plan targeting a 6% flat rate. The adp south carolina paycheck calculator applies the current year’s applicable rate automatically — ADP updates its tables when rate changes take effect. Workers using the adp sc paycheck calculator will see slightly higher take-home pay each year as the reductions phase in.
What makes the ADP Missouri paycheck calculator different from neighboring states?
Missouri’s graduated income tax structure is fairly typical for Midwestern states, but the city earnings taxes in Kansas City and St. Louis create local tax obligations that workers in Missouri’s two largest cities must account for. The adp missouri paycheck calculator includes the 1% earnings tax for these cities when specified. Workers in Kansas City or St. Louis who do not see this deduction in their actual paycheck should verify whether their employer is withholding it correctly.
Conclusion
Smaller states deserve the same quality of paycheck calculation guidance as the largest ones — and the ADP paycheck calculator delivers that for all 50 states. Whether you are using the adp alabama paycheck calculator with its federal income tax deduction benefit, the adp hawaii paycheck calculator with its TDI deduction and high progressive rates, the adp iowa paycheck calculator reflecting ongoing rate reductions, or the adp south carolina paycheck calculator tracking phased rate cuts, the tool applies each state’s current rules automatically.
The most important thing you can do for accurate results in any state is to enter the correct location — including local jurisdiction where applicable — and all relevant pre-tax deductions. From the adp arkansas paycheck calculator to the adp west virginia paycheck calculator, accurate inputs produce reliable estimates that help you plan your finances with confidence every pay period.
