Iowa Payroll Calculator

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Iowa Payroll & Net Pay Calculator

Calculate take-home pay including Federal and Iowa state tax withholdings for 2024.

Weekly (52 periods) Bi-weekly (26 periods) Semi-monthly (24 periods) Monthly (12 periods)
Single Married / Joint

Paycheck Summary

Gross Pay (per period): $0.00
Federal Withholding: $0.00
Social Security: $0.00
Medicare: $0.00
Iowa State Tax: $0.00
Take-Home Pay: $0.00

Understanding Your Iowa Paycheck

Calculating payroll in Iowa involves several layers of taxation. While Iowa is moving toward a flat income tax rate, current calculations must account for federal taxes, FICA (Social Security and Medicare), and specific Iowa state withholding rates based on your income level and filing status.

Key Components of Iowa Payroll

  • Federal Income Tax: Determined by your annual earnings and filing status. This uses progressive brackets ranging from 10% to 37%.
  • FICA Taxes: This consists of Social Security (6.2%) and Medicare (1.45%) which are mandatory federal deductions for almost all employees.
  • Iowa State Tax: Iowa has recently undergone significant tax reform. For 2024, the state is transitioning toward a flat tax. Rates range from roughly 4.4% to 5.7%, with plans to reach a flat 3.8% by 2026.
  • Standard Deduction: Both federal and state governments allow a standard deduction which reduces the amount of your income subject to tax.

Example Calculation

If you earn $55,000 annually as a single filer in Iowa:

Description Amount (Annual)
Gross Annual Salary $55,000.00
Est. Federal Tax (Single) -$4,320.00
FICA (SS + Medicare) -$4,207.50
Est. Iowa State Tax -$2,150.00
Annual Take-Home Pay $44,322.50

Iowa Tax Reform and Your Pay

In 2022, Iowa passed a major tax reform package. For residents, this means that every year through 2026, state income tax rates are scheduled to drop. Using an Iowa payroll calculator helps you stay updated on these changes and understand how much extra money you might see in your paycheck as these lower rates take effect.

function calculateIowaPayroll() { var annualGross = parseFloat(document.getElementById('grossSalary').value); var frequency = parseFloat(document.getElementById('payFrequency').value); var status = document.getElementById('filingStatus').value; if (isNaN(annualGross) || annualGross 609350) fedTax = 162713 + (taxableFederal – 609350) * 0.37; else if (taxableFederal > 243725) fedTax = 51630 + (taxableFederal – 243725) * 0.35; else if (taxableFederal > 191950) fedTax = 35062 + (taxableFederal – 191950) * 0.32; else if (taxableFederal > 100525) fedTax = 17400 + (taxableFederal – 100525) * 0.24; else if (taxableFederal > 47150) fedTax = 5444 + (taxableFederal – 47150) * 0.22; else if (taxableFederal > 11600) fedTax = 1160 + (taxableFederal – 11600) * 0.12; else fedTax = taxableFederal * 0.10; } else { if (taxableFederal > 731200) fedTax = 177597 + (taxableFederal – 731200) * 0.37; else if (taxableFederal > 487450) fedTax = 92334 + (taxableFederal – 487450) * 0.35; else if (taxableFederal > 383900) fedTax = 59198 + (taxableFederal – 383900) * 0.32; else if (taxableFederal > 201050) fedTax = 32580 + (taxableFederal – 201050) * 0.24; else if (taxableFederal > 94300) fedTax = 10888 + (taxableFederal – 94300) * 0.22; else if (taxableFederal > 23200) fedTax = 2320 + (taxableFederal – 23200) * 0.12; else fedTax = taxableFederal * 0.10; } // FICA var socialSecurity = Math.min(annualGross, 168600) * 0.062; var medicare = annualGross * 0.0145; // Iowa State Tax – Simplified for 2024 // Top rate is 5.7%, but using a weighted progressive simplification var iowaDeduction = (status === 'single') ? 13850 : 27700; var taxableIowa = Math.max(0, annualGross – iowaDeduction); var iowaTax = 0; // 2024 IA Brackets simplified if (taxableIowa > 30000) { iowaTax = (taxableIowa * 0.052); // Simplified effective flat estimate for 2024 } else { iowaTax = (taxableIowa * 0.044); } // Period Calculations var grossPerPeriod = annualGross / frequency; var fedPerPeriod = fedTax / frequency; var ssPerPeriod = socialSecurity / frequency; var medPerPeriod = medicare / frequency; var statePerPeriod = iowaTax / frequency; var netPerPeriod = grossPerPeriod – fedPerPeriod – ssPerPeriod – medPerPeriod – statePerPeriod; // Output formatting document.getElementById('resGrossPeriod').innerText = '$' + grossPerPeriod.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('resFedTax').innerText = '$' + fedPerPeriod.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('resSocial').innerText = '$' + ssPerPeriod.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('resMedicare').innerText = '$' + medPerPeriod.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('resStateTax').innerText = '$' + statePerPeriod.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); document.getElementById('resNetPay').innerText = '$' + netPerPeriod.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2}); }

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