Self-Employed Tax Calculator — Iowa (2026)
Self-employed in Iowa? Your tax bill has three layers that a W-2 employee never sees in full: 15.3% self-employment tax on 92.35% of net profit, federal income tax, and Iowa state income tax. This calculator applies all three to your 2026 net profit and shows the quarterly amount you should be setting aside. Iowa uses a flat personal income tax of 3.80% applied to taxable income after a state standard deduction of $2,210.
Iowa Self-Employed Tax Calculator
Gross 1099 income minus business expenses.
Self-employment tax vs Iowa income tax
Self-employment tax is federal and identical in all 50 states: 12.4% Social Security up to $184,500 of net earnings plus 2.9% Medicare with no cap. Half of it is deductible against income tax, which is why the calculator subtracts it before applying brackets.
Iowa then taxes essentially the same profit figure at 3.80%. On $80,000 of net profit that adds roughly $2,741 to the bill.
Iowa has no separate city or county income tax, so the state figure above is the full sub-federal income tax you pay.
Deductions that matter for Iowa freelancers
Net profit — not gross revenue — drives every number here. Ordinary and necessary business expenses reduce SE tax, federal tax, and Iowa tax simultaneously: the 2026 standard mileage rate of $0.67/mile, home-office square footage, software, equipment, professional insurance, and the self-employed health insurance deduction.
Retirement plans go further. A SEP-IRA or solo 401(k) reduces income tax (though not SE tax) and is often the largest single deduction available to a profitable insurance contractor in Des Moines.
Working for yourself in Iowa
Iowa's economy leans on insurance, finance, and agriculture, which shapes the contractor market around Des Moines — and your fixed costs. With one-bedroom rent near $1,100, a freelancer needs meaningfully more gross revenue than an employee to reach the same lifestyle, because there is no employer paying half of FICA.
Iowa accelerated its tax reform: from 9 brackets and a 8.53% top rate in 2022, it now has a single 3.8% flat rate as of 2025.
Local and payroll taxes Iowa adds on top
Iowa adds no state-mandated employee payroll deduction beyond FICA, so nothing extra is taken from your gross pay at the state level.
Iowa has no separate city or county income tax, so the state figure above is the full sub-federal income tax you pay.
Nobody withholds these for you when you are self-employed in Iowa. Local wage taxes, city business licences and gross-receipts style levies are yours to register for and remit alongside your quarterly federal and state estimates.
Working across a state line from Iowa
Iowa holds income-tax reciprocity agreements with Illinois. If you commute between them, your wages are taxed only by your state of residence — file the exemption certificate with your employer so the wrong state is not withheld from every paycheck.
Remote and hybrid work complicates this further: most states tax income where the work is physically performed, so a Des Moines resident spending part of the year at a client site in Illinois may owe a nonresident return there. Keep a day-count log if you split time between states.
The rest of your Iowa tax bill
Iowa charges a 6% state sales tax, homeowners pay an average effective property tax of 1.5% of market value, and the minimum wage in force during 2026 is $7.25 an hour.
Local option sales tax of 1% applies in most jurisdictions.
Income tax is only one part of a state's take. Iowa recovers revenue through sales and property tax as well, which is why headline income tax rates alone are a poor guide to how far a salary really goes. Iowa fully exempts retirement income for filers 55 and older, including pensions and IRA distributions.
Iowa vs Illinois on the same salary
On a $90,000 salary, a single filer keeps about $68,809 a year in Iowa against roughly $67,690 in Illinois — a difference of $1,119, or $93 a month.
Effective combined rates are 23.5% in Iowa and 24.8% in Illinois. Set that gap against living costs: index 90 here versus 93 there, with property tax at 1.5% and 2.07% respectively.
Iowa income tax brackets 2026 (single filer)
| Taxable income | Rate |
|---|---|
| $0 and up | 3.80% |