The United States has 50 different state income tax structures, and for workers in mid-size states — those with significant workforces but sometimes less familiar tax rules — understanding exactly how the ADP paycheck calculator applies their state’s withholding is essential for financial planning. This guide covers the mid-tier states where paycheck calculator questions are common but state-specific guidance is harder to find.
From the adp colorado paycheck calculator to the adp massachusetts paycheck calculator, from the adp washington paycheck calculator to the adp connecticut paycheck calculator — this comprehensive reference explains what drives results in each state, what rates apply, and what makes each state’s paycheck calculation unique.
Rate accuracy note: Tax rates referenced in this guide reflect current-year rates as applied by the ADP paycheck calculator. State tax rates are subject to annual legislative changes. ADP updates its calculator tables at the start of each tax year to reflect enacted changes.
ADP Colorado Paycheck Calculator
Colorado uses a flat state income tax rate of 4.4%, reduced from the previous 4.55% following a taxpayer refund mechanism under the Taxpayer’s Bill of Rights (TABOR). The adp colorado paycheck calculator and colorado adp paycheck calculator apply this flat rate to taxable wages after Colorado’s standard deduction. Colorado does not have significant city income taxes in most municipalities, making the adp paycheck calculator colorado output straightforward: federal tax, 4.4% state tax, and FICA alongside pre-tax deductions.
Denver and some other Colorado cities do impose a local occupational privilege tax — a small flat dollar amount (not a percentage) per month, currently $5.75 for most Denver workers. The adp paycheck calculator colorado includes this when Denver is specified as the work location. Colorado workers benefit from the relatively moderate flat rate combined with a cost of living that, while rising, has historically been below coastal states.
ADP Indiana Paycheck Calculator
Indiana has a flat state income tax rate of 3.05% (reduced from 3.23% in 2023 as part of a multi-year reduction plan). The adp indiana paycheck calculator, indiana adp paycheck calculator, and indiana paycheck calculator adp all apply this current flat rate. Indiana is also notable for having county income taxes — each of Indiana’s 92 counties levies its own income tax, ranging from 0.5% to 3.38%.
For Indiana workers, the combined state plus county rate can be meaningful. A worker in Marion County (Indianapolis) pays 3.05% state plus 2.02% county tax, totaling over 5% state and local income tax. The adp indiana paycheck calculator accounts for county taxes when the work county is correctly specified — making county selection as important as state selection for accurate Indiana results.
ADP Maryland Paycheck Calculator
Maryland has a graduated state income tax with rates ranging from 2% to 5.75% across eight brackets. Beyond state tax, every Maryland county and Baltimore City levies a local income tax — making Maryland one of the most locally taxed states in the country. County rates range from 2.25% to 3.2%, and Baltimore City imposes 3.2%. The adp maryland paycheck calculator, maryland adp paycheck calculator, adp paycheck calculator maryland, and maryland paycheck calculator adp all apply both the state and local county rates.
For a Maryland worker earning $75,000 in Montgomery County (state rate: up to 5.75%, county rate: 3.2%), the combined state and local income tax withholding is substantial — approaching 7% to 8% of taxable income at that earnings level. The adp md paycheck calculator requires selecting the correct county to apply the right local rate alongside the graduated state brackets.
ADP Oregon Paycheck Calculator
Oregon has one of the highest state income tax rates in the country, with a top marginal rate of 9.9% on income above $125,000 (single) or $250,000 (married). Lower brackets apply at 4.75% and 8.75%. The adp oregon paycheck calculator and adp paycheck calculator oregon apply Oregon’s four-bracket progressive system. Oregon does not have a sales tax (unlike most other states), but its high income tax rates more than compensate.
Portland imposes a Supportive Housing Services (SHS) tax of 1% on income above $125,000 for individuals, and Metro area residents may also face the Metro Supportive Housing Services tax. The adp paycheck calculator oregon incorporates these Portland-area surcharges for workers who specify Portland as their location. Oregon’s high earners should expect the adp oregon paycheck calculator to show some of the highest state tax percentages outside of California.
ADP Washington Paycheck Calculator
Washington State has no state income tax on wages, making the adp washington paycheck calculator results similar to Texas and Florida — only federal income tax, FICA, and pre-tax deductions apply. The adp paycheck calculator washington tool shows no state income tax line because Washington imposes none on earned wages.
However, Washington workers should note that the state does impose a Long-Term Care Insurance payroll tax (WA Cares Fund) of 0.58% on wages for workers who have not opted out with private long-term care insurance. This deduction appears in the adp washington paycheck calculator when enabled — it is a state-specific withholding unique to Washington. Washington also has no city income taxes, so the paycheck calculation remains relatively simple.
ADP Utah Paycheck Calculator
Utah has a flat state income tax rate of 4.65%. The adp utah paycheck calculator, adp paycheck calculator utah, and utah adp paycheck calculator all apply this single rate to taxable wages. Utah does not impose local income taxes at the city or county level, making the adp paycheck calculator utah output clean and predictable alongside federal and FICA withholding. Utah is a popular state for remote workers partly because of its flat, moderate tax rate combined with a relatively lower cost of living.
ADP Arizona Paycheck Calculator
Arizona recently moved to a flat income tax rate of 2.5% — one of the lowest flat income tax rates of any state that levies income tax. The adp arizona paycheck calculator, adp paycheck calculator arizona, and adp az paycheck calculator all apply this 2.5% flat rate. Prior to 2023, Arizona used a progressive rate system, but voters approved a flat tax that phases in over time. The az adp paycheck calculator now reflects this simplified structure.
Arizona cities do not impose local income taxes, so the adp paycheck calculator arizona results are straightforward: federal tax, 2.5% state tax, and FICA alongside pre-tax deductions. The low flat rate makes Arizona one of the more taxpayer-friendly income tax states for workers at most income levels.
ADP Nevada Paycheck Calculator
Nevada has no state income tax, joining Texas, Florida, Washington, and other no-income-tax states. The adp nevada paycheck calculator, adp paycheck calculator nevada, nevada adp paycheck calculator, and nevada paycheck calculator adp all show only federal income tax and FICA deductions — no state tax line appears. Las Vegas and Reno workers benefit from the same no-state-tax treatment as all Nevada workers; Nevada cities do not impose local income taxes either.
ADP Connecticut Paycheck Calculator
Connecticut has a progressive income tax structure with rates ranging from 2% to 6.99% across seven brackets. The adp connecticut paycheck calculator, adp paycheck calculator ct, adp ct paycheck calculator, and ct adp paycheck calculator all apply Connecticut’s graduated rates. Connecticut does not have a separate local income tax at the city or town level — the state tax is the only state-level withholding. However, Connecticut’s rates are among the higher ones in the Northeast, and its 6.99% top rate applies at relatively moderate income levels compared to New York.
ADP Massachusetts Paycheck Calculator
Massachusetts uses a flat income tax rate of 5% for most income, with a 4% surtax on income above $1 million (the so-called ‘millionaires tax’ approved by voters in 2022). The adp massachusetts paycheck calculator, adp paycheck calculator massachusetts, adp paycheck calculator ma, adp ma paycheck calculator, adp mass paycheck calculator, and ma adp paycheck calculator all apply the 5% flat rate. The millionaires surtax applies at the top bracket and adds 4% on income exceeding $1 million annually.
Massachusetts workers in Boston should note that Boston does not impose a separate city income tax. The adp massachusetts paycheck calculator applies only the state flat rate alongside federal and FICA withholding for all Massachusetts workers regardless of location within the state.
ADP New Jersey Paycheck Calculator
New Jersey has one of the most progressive income tax structures in the country, with rates ranging from 1.4% to 10.75% across eight brackets. The adp new jersey paycheck calculator, adp nj paycheck calculator, adp paycheck calculator nj, and nj adp paycheck calculator apply this full bracket system. New Jersey also withholds for the NJ Disability Insurance (DI) program and Family Leave Insurance (FLI) — state-specific payroll taxes that function similarly to California’s SDI.
Workers living in New Jersey but commuting to New York City face a unique situation: they owe New York State income tax on wages earned in NY, plus a New Jersey resident credit that offsets some double taxation. The adp nys paycheck calculator or adp paycheck calculator ny tool handles the NY withholding side, while the nj adp paycheck calculator handles the residence-side calculation.
ADP Minnesota Paycheck Calculator
Minnesota has a progressive income tax system with rates from 5.35% to 9.85% across four brackets. The adp minnesota paycheck calculator, adp mn paycheck calculator, adp paycheck calculator mn, adp paycheck calculator minnesota, mn adp paycheck calculator, and minnesota adp paycheck calculator all apply these rates. Minnesota has one of the higher top marginal state income tax rates in the Midwest, and its 9.85% top rate applies at income levels above approximately $183,000 for single filers.
ADP Wisconsin Paycheck Calculator
Wisconsin uses a progressive income tax with four brackets ranging from 3.54% to 7.65%. The adp wisconsin paycheck calculator, adp paycheck calculator wisconsin, and wisconsin adp paycheck calculator apply Wisconsin’s graduated rates. Wisconsin does not impose significant local income taxes at the city level, making the adp paycheck calculator wisconsin results consistent statewide alongside federal and FICA withholding.
ADP Tennessee Paycheck Calculator
Tennessee does not tax earned wages — the state’s former tax on investment income (the Hall Tax) was fully repealed as of 2021. The adp tennessee paycheck calculator, adp paycheck calculator tn, adp tn paycheck calculator, and tn adp paycheck calculator all show no state income tax on wages. Tennessee workers benefit from the same no-state-income-tax treatment as Texas and Florida workers, with only federal income tax and FICA applied to earned wages. The tennessee adp paycheck calculator is one of the simplest state calculators as a result.
Frequently Asked Questions
Why does the ADP Indiana paycheck calculator include a county tax?
Indiana requires county income tax withholding for all 92 counties, with rates set locally. The adp indiana paycheck calculator includes this county tax automatically when you select your county of employment. Since county rates vary from 0.5% to over 3%, selecting the correct county significantly affects your net pay estimate. Workers who live in one Indiana county and work in another should confirm which county rate their employer withholds — typically the work county rate applies.
Does the ADP Washington paycheck calculator include the WA Cares Fund deduction?
Yes. The adp washington paycheck calculator includes the WA Cares Fund long-term care tax of 0.58% of wages when applicable. Workers who obtained a qualifying private long-term care insurance policy and received an exemption from the state may not see this deduction. If you opted out and your employer has the correct exemption documentation on file, the deduction should not appear in your actual paycheck — but the public calculator may show it by default unless you indicate the exemption.
Is the ADP Nevada paycheck calculator the same as the ADP Washington calculator?
Both Nevada and Washington have no state income tax on wages, so the adp nevada paycheck calculator and adp washington paycheck calculator produce similar results — federal income tax, FICA, and pre-tax deductions only. The difference is Washington’s WA Cares Fund deduction (0.58%), which does not appear in the Nevada tool. For everything else, both calculators function identically since neither state taxes earned wages.
How does the ADP Oregon paycheck calculator handle Portland’s local taxes?
Portland has unique local tax surcharges including the Supportive Housing Services (SHS) tax. The adp paycheck calculator oregon incorporates these when Portland is selected as the work location. If you work in the broader Metro area but not Portland proper, different thresholds may apply. Because Portland’s local tax rules have become increasingly complex, cross-checking the adp oregon paycheck calculator result with Oregon’s Metro and Portland tax guidance is recommended for workers in that area.
What makes the ADP Maryland paycheck calculator more complex than other states?
Maryland is one of few states where every jurisdiction — all 23 counties plus Baltimore City — imposes its own local income tax. The adp maryland paycheck calculator combines the state’s graduated bracket rates (up to 5.75%) with the county-specific rate for your work location. This means the correct county selection is as important as state selection in Maryland. Workers commuting between counties may have withholding based on their work county, residence county, or a combination — verify with your employer which rate applies to your situation.
Why does the ADP Massachusetts paycheck calculator show a flat rate when other New England states are progressive?
Massachusetts voters established the flat income tax rate structure through state law, unlike neighboring states that use graduated brackets. The adp paycheck calculator massachusetts applies 5% consistently across income levels up to $1 million. The adp mass paycheck calculator does incorporate the additional 4% surtax for income exceeding $1 million annually — making Massachusetts effectively a two-rate state for very high earners while remaining flat for the vast majority of workers.
Conclusion
Mid-size states represent enormous diversity in income tax structures — from no-tax states like Washington, Nevada, and Tennessee to high-rate progressive states like Oregon and New Jersey, to flat-rate states like Colorado, Indiana, and Arizona. The ADP paycheck calculator handles every one of these structures automatically, but the quality of your results depends entirely on entering the right location.
For states with local taxes — Indiana’s county taxes, Maryland’s county rates, Ohio’s municipal taxes, and Connecticut’s city structures — the local jurisdiction input is often as important as the state itself. Take the time to confirm your exact work location in any adp paycheck calculator, whether you are using the adp colorado paycheck calculator, adp washington paycheck calculator, adp new jersey paycheck calculator, or any other state tool, and your results will accurately reflect your real paycheck deductions.
