Last updated: 2025 BLS data · Page refreshed:
How much does a Social and Human Service Assistants actually take home in Iowa?
3.9% flat rate — 18.9% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Social and Human Service Assistants earning $42,480 in Iowa (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $42,480 | — |
| Federal Income Tax | -$3,113 | 7.3% |
| Iowa State Income Tax | -$1,656 | 3.9% |
| Social Security (OASDI) | -$2,633 | 6.2% |
| Medicare | -$615 | 1.5% |
| Total Taxes | -$8,020 | 18.9% |
| Take-Home Pay | $34,459 | 81.1% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Social and Human Service Assistants in Iowa.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $33,060 | -$5,801 | $27,258 | 17.5% |
| 25th Percentile (P25) | $36,710 | -$6,661 | $30,048 | 18.1% |
| Median (P50) | $42,480 | -$8,020 | $34,459 | 18.9% |
| 75th Percentile (P75) | $48,050 | -$9,331 | $38,718 | 19.4% |
| 90th Percentile (P90) | $60,780 | -$12,329 | $48,450 | 20.3% |
After federal income tax ($3,113), state tax ($1,656), and FICA ($3,249), a Social and Human Service Assistants in Iowa takes home $34,459 per year — or $2,871 per month. The effective tax rate of 18.9% is relatively low compared to the national range.
A Social and Human Service Assistants in Iowa faces an effective total tax rate of only 18.9%, keeping 81.1% of every gross dollar. That leaves $34,460 net out of $42,480 gross — a favorable outcome compared to states with combined rates above 30%.
Iowa applies a flat state income tax — every dollar of wage income is taxed at the same rate. For this Social and Human Service Assistants salary that contributes $1,657 to the 3.9% effective state-tax burden.
Federal tax on this Social and Human Service Assistants salary is $3,114 (39%), but combined state ($1,657, 21%) + FICA ($3,250, 41%) make up the other 61% of the bill.
A Social and Human Service Assistants earning this gross in a no-income-tax state (e.g., Texas, Florida) would take home approximately $36,117 — only $1,657 (4.8%) more than in Iowa.
Iowa ranks #29 of 51 states for Social and Human Service Assistants after-tax pay — lower half of the national distribution. Either gross wages trail the national median, state tax is elevated, or both.
Translated into paycheck cadences, $34,460 net/year works out to $2,872/month or $1,325/bi-weekly for this Social and Human Service Assistants in Iowa — the numbers that actually hit a checking account after every deduction.
Where does a Social and Human Service Assistants keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Iowa ranks #29 out of 51 states for Social and Human Service Assistants after-tax take-home pay.
A Social and Human Service Assistants in Iowa earning a median salary of $42,480 will take home approximately $34,459 per year after federal income tax ($3,113), state income tax ($1,656), and FICA ($3,249). That is $2,871 per month or $1,325 per bi-weekly paycheck.
The effective total tax rate for a Social and Human Service Assistants in Iowa is 18.9%, broken down as: federal income tax 7.3%, Iowa state tax 3.9%, and FICA (Social Security + Medicare) 7.6%. This assumes a single filer with the standard deduction for 2024.
Iowa has a 3.9% flat rate. On a Social and Human Service Assistants's median salary of $42,480, the state income tax amounts to $1,656 per year, which is an effective state rate of 3.9%.
After all taxes, a Social and Human Service Assistants in Iowa takes home approximately $2,871 per month, or about $16.57 per hour (based on a standard 2,080-hour work year). These figures assume a single filer, standard deduction, and no additional pre-tax deductions.
We start with the 2025 BLS median salary of $42,480 for Social and Human Service Assistants in Iowa, then subtract: federal income tax using 2024 IRS brackets ($14,600 standard deduction), Iowa state income tax (3.9% flat rate), Social Security (6.2% up to $168,600), and Medicare (1.45%). The result — $34,459/yr — does not include local taxes, pre-tax deductions (401k, HSA), or tax credits.
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This estimate assumes a single filer using the 2024 standard deduction ($14,600), with W-2 employment income only. It does not account for: itemized deductions, tax credits (e.g. earned income credit, child tax credit), local/city taxes, pre-tax contributions (401k, HSA, FSA), self-employment tax, or additional income sources. Actual take-home pay may differ. Consult a tax professional for personalized advice.
Our Methodology · Data Sources · Salary: BLS OEWS · Tax: IRS + State DOR