Iowa Paycheck Calculator (Hourly)

How the Iowa Paycheck Calculator Works

This Iowa paycheck calculator hourly tool estimates your take-home pay by subtracting federal income tax, Iowa state income tax (a flat 3.8% for 2026), and FICA (Social Security and Medicare) from your gross earnings. Each component is calculated independently using 2026 brackets, standard deductions, and rates so you can see exactly where your money goes.

The core formula:

Take-Home = Gross Pay - Federal Tax - Iowa State Tax - Social Security - Medicare $$P_{\text{net}}=P_{\text{gross}}-T_{\text{fed}}-T_{\text{IA}}-T_{\text{SS}}-T_{\text{Med}}$$

Annual gross pay equals your hourly wage multiplied by hours per week multiplied by 52 weeks. The per-period amount divides annual gross by the number of pay periods (52 weekly, 26 biweekly, 24 semi-monthly, 12 monthly). To compare what your hourly rate becomes as an annual salary or vice versa, use our salary calculator.

Federal income tax uses the 2026 progressive brackets. For a single filer, the first $11,925 of taxable income is taxed at 10%, $11,925-$48,475 at 12%, $48,475-$103,350 at 22%, $103,350-$197,300 at 24%, $197,300-$250,525 at 32%, and $250,525-$626,350 at 35%. The 2026 federal standard deduction is $15,000 single, $30,000 married joint, and $22,500 head of household. Iowa state tax applies a flat 3.8% to taxable income after subtracting the Iowa standard deduction of $2,210 single or $5,450 married/head of household. Social Security is 6.2% on wages up to $176,100, and Medicare is 1.45% on all wages with a 0.9% surtax above $200,000 single or $250,000 married.

Iowa Hourly Paycheck Tax Breakdown

Iowa taxes wage income at a flat 3.8% for the 2026 tax year, the second year of a flat-tax era that began January 1, 2025. Before reform, Iowa used nine brackets with a top rate of 8.53% — making the state one of the higher-tax options in the Midwest. The 2022 reform law and subsequent acceleration brought the rate down to 3.8% by 2025-2026, a roughly 4.7 percentage point reduction at the top.

Iowa taxable income starts with federal adjusted gross income, then applies Iowa-specific add-backs and subtractions, then subtracts the Iowa standard deduction ($2,210 single, $5,450 married/HoH). Iowa also offers a personal exemption credit of $40 per filer and $40 per dependent, which is a direct reduction in tax rather than a reduction in taxable income. Pre-tax 401(k), 403(b), and HSA contributions reduce federal AGI and therefore reduce Iowa taxable income as well — making pre-tax retirement savings doubly valuable.

School district surtax is the unique Iowa wrinkle. Approximately 280 of Iowa's 327 school districts levy a surtax expressed as a percentage of state income tax liability, ranging from 1% to 20%. For an Iowa worker owing $2,000 in state income tax living in a district with a 10% surtax, the additional liability is $200. The Iowa Department of Revenue publishes the current rate by district. Major cities like Des Moines (Des Moines Independent CSD: 0% surtax in recent years), Cedar Rapids (Cedar Rapids CSD: varies), and Iowa City (Iowa City CSD: 0% recent) span the full range. The surtax is based on residence as of December 31.

Compared to its six neighbors, Iowa's flat 3.8% sits in the middle of the pack. South Dakota imposes no state income tax. Illinois charges 4.95% flat. Wisconsin uses 3.5%-7.65% progressive brackets. Minnesota uses 5.35%-9.85% progressive brackets. Nebraska uses 2.46%-5.84% progressive brackets. Missouri uses 2%-4.95% progressive brackets. For a $70,000 Iowa earner with the single standard deduction, Iowa state tax of roughly $2,580 compares to $0 in South Dakota, $3,360 in Illinois, $2,900 in Wisconsin, around $4,200 in Minnesota, $2,800 in Nebraska, and $2,700 in Missouri. Iowa's recent reform shifted the state from least competitive to mid-pack among regional peers.

Variable Definitions

Hourly Wage: Your gross pay per hour before any deductions. Iowa hourly workers span from federal-minimum at $7.25 to skilled trades and manufacturing roles at $30 to $45 per hour. A John Deere assembly worker in Waterloo or Davenport typically earns $24 to $32 per hour with extensive overtime. A Collins Aerospace engineer in Cedar Rapids may earn $40 to $55 per hour as a salary equivalent. Tyson Foods or JBS meatpacking workers in Storm Lake, Waterloo, or Marshalltown commonly earn $20 to $26 per hour with shift differentials. A registered nurse at UnityPoint or University of Iowa Hospitals may earn $34 to $45 per hour.

Hours per Week: Total hours worked each week. Standard full-time is 40 hours. Iowa follows federal Fair Labor Standards Act overtime rules requiring 1.5x pay above 40 hours per week for non-exempt workers. Manufacturing workers in Iowa frequently log 45 to 55 hours during peak production runs, and agricultural workers fall under different rules during planting and harvest seasons.

Pay Frequency: How often you receive a paycheck. Weekly is 52 periods, biweekly is 26, semi-monthly is 24, monthly is 12. Iowa Code section 91A.3 generally requires payment of wages at least once per month and within 12 days of the end of the pay period for which wages are owed. Biweekly is most common for hourly workers; monthly is reserved largely for salaried professionals. A $25/hour worker at 40 hours/week earns $52,000 annually regardless of frequency.

Filing Status: Your filing status determines your federal standard deduction and bracket thresholds, plus your Iowa standard deduction. Single filers use $15,000 federal and $2,210 Iowa. Married filing jointly uses $30,000 federal and $5,450 Iowa. Head of household uses $22,500 federal and $5,450 Iowa. A married Iowa couple where one spouse earns $80,000 and the other earns $0 saves approximately $4,400 in federal tax versus a single $80,000 earner, and saves $123 in Iowa tax due to the larger standard deduction.

Pre-Tax Deduction: Percentage of gross pay contributed to 401(k), 403(b), traditional IRA, or HSA. Iowa follows federal treatment, so each dollar of pre-tax contribution reduces both federal and Iowa taxable income. For a Cedar Rapids engineer earning $90,000 contributing 10% ($9,000), federal tax savings of approximately $1,980 plus Iowa tax savings of $342 plus FICA savings on the HSA portion add up quickly. Iowa also offers a state tax deduction of up to $5,500 per beneficiary in contributions to the Iowa College Savings Plan (529), entirely separate from the payroll-level pre-tax deductions discussed here.

Worked Example 1: Iowa Hourly Paycheck at $20/Hour

A single filer earning $20/hour, working 40 hours/week, biweekly pay, with a 5% pre-tax 401(k) contribution. This profile fits a starting CNA at Mercy Medical Cedar Rapids, a Des Moines warehouse worker, or a first-year teacher's aide in Davenport:

1. Annual gross: $20 x 40 x 52 = $41,600
2. Pre-tax deduction: $41,600 x 5% = $2,080
3. Taxable gross: $41,600 - $2,080 = $39,520
4. Federal taxable income: $39,520 - $15,000 (standard deduction) = $24,520
5. Federal tax: ($11,925 x 10%) + ($12,595 x 12%) = $1,192.50 + $1,511.40 = $2,703.90
6. Iowa taxable income: $39,520 - $2,210 (Iowa standard deduction) = $37,310
7. Iowa state tax: $37,310 x 3.8% = $1,417.78
8. Social Security: $39,520 x 6.2% = $2,450.24
9. Medicare: $39,520 x 1.45% = $573.04
10. Total deductions: $2,080 + $2,703.90 + $1,417.78 + $2,450.24 + $573.04 = $9,224.96
11. Annual take-home: $41,600 - $9,224.96 = $32,375.04
12. Biweekly take-home: $32,375.04 / 26 = $1,245.19

Worked Example 2: Iowa Hourly Paycheck at $48/Hour

A married filing jointly worker earning $48/hour, working 40 hours/week, biweekly pay, with a 10% pre-tax 401(k) contribution. This represents a senior software developer at Principal Financial in Des Moines, an experienced electrician in the Quad Cities, or a registered nurse with overtime at University of Iowa Hospitals:

1. Annual gross: $48 x 40 x 52 = $99,840
2. Pre-tax deduction: $99,840 x 10% = $9,984
3. Taxable gross: $99,840 - $9,984 = $89,856
4. Federal taxable income: $89,856 - $30,000 (married standard deduction) = $59,856
5. Federal tax: ($23,850 x 10%) + ($36,006 x 12%) = $2,385 + $4,320.72 = $6,705.72
6. Iowa taxable income: $89,856 - $5,450 (Iowa married standard deduction) = $84,406
7. Iowa state tax: $84,406 x 3.8% = $3,207.43
8. Social Security: $89,856 x 6.2% = $5,571.07
9. Medicare: $89,856 x 1.45% = $1,302.91
10. Total deductions: $9,984 + $6,705.72 + $3,207.43 + $5,571.07 + $1,302.91 = $26,771.13
11. Annual take-home: $99,840 - $26,771.13 = $73,068.87
12. Biweekly take-home: $73,068.87 / 26 = $2,810.34

This couple's effective Iowa state rate is approximately 3.2% of gross income. The 10% 401(k) contribution alone saves them about $1,198 in federal tax and $379 in Iowa state tax annually — over $1,577 in payroll tax savings that goes directly into their retirement account. If they live in a school district with a 10% surtax, add roughly $321 to their Iowa tax bill.

Edge Cases and Advanced Scenarios

The Social Security wage base cap: If you earn above $176,100 annually, no additional Social Security tax is withheld on wages over that threshold. For an Iowa physician earning $240,000, Social Security caps at $176,100 x 6.2% = $10,918.20, not $14,880 — a savings of $3,961.80 compared to applying the rate to all wages.

Additional Medicare tax for high earners: Wages above $200,000 (single) or $250,000 (married filing jointly) trigger an additional 0.9% Medicare surtax. A Des Moines insurance executive earning $250,000 filing single owes ($250,000 - $200,000) x 0.9% = $450 in additional Medicare tax. Employers withhold the surtax once year-to-date wages cross $200,000 regardless of filing status, so married filers with two high incomes may need to true up at filing.

Iowa retirement income exemption at age 55: Iowa exempts qualifying retirement income (401(k), IRA, pensions, certain annuities) from state tax for residents aged 55 and older. A 56-year-old retiree drawing $80,000 from a traditional 401(k) plus $30,000 in Social Security pays Iowa state tax of $0 on both income streams, while a 54-year-old drawing the same $80,000 would owe approximately $2,950 in Iowa tax. Workers nearing age 55 may benefit from timing their retirement to capture this exemption fully. The exemption also applies to pensions from out-of-state employers as long as the recipient is Iowa-resident and aged 55+.

What to Do with Your Iowa Paycheck Result

• Look up your school district surtax rate on the Iowa Department of Revenue website. Multiply your Iowa state tax owed by the surtax percentage to get the additional liability — it can range from $0 to over $400 per year for typical earners.
• Compare your calculator result to your actual pay stub. Differences usually come from school district surtax, health insurance premiums, or union dues.
• Boost pre-tax contributions if you are near retirement age. The combination of 3.8% Iowa savings now plus full Iowa tax exemption on withdrawals after age 55 makes 401(k) and IRA contributions exceptionally efficient for Iowa workers.
• Use our federal income tax percentage calculator to check your effective federal tax rate and confirm your W-4 withholding matches your actual yearly liability.

Related Calculators

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• Kansas Paycheck Calculator (Hourly) — Kansas uses 2 brackets at 5.2% and 5.58%; useful comparison for plains-state workers.
• Salary Calculator — convert between hourly and annual pay.
• Income Tax Calculator — estimate your total federal income tax liability.
• Federal Income Tax Percentage Calculator — find your effective federal tax rate.
• Paycheck Calculator by State — compare take-home pay across all 50 states and DC.