Last updated: 2025 BLS data · Page refreshed:
How much does a Water and Wastewater Treatment Plant and System Operators actually take home in Indiana?
3.0% flat rate — 19.0% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Water and Wastewater Treatment Plant and System Operators earning $53,540 in Indiana (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $53,540 | — |
| Federal Income Tax | -$4,440 | 8.3% |
| Indiana State Income Tax | -$1,632 | 3.0% |
| Social Security (OASDI) | -$3,319 | 6.2% |
| Medicare | -$776 | 1.5% |
| Total Taxes | -$10,169 | 19.0% |
| Take-Home Pay | $43,370 | 81.0% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Water and Wastewater Treatment Plant and System Operators in Indiana.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $40,590 | -$7,229 | $33,360 | 17.8% |
| 25th Percentile (P25) | $47,570 | -$8,814 | $38,755 | 18.5% |
| Median (P50) | $53,540 | -$10,169 | $43,370 | 19.0% |
| 75th Percentile (P75) | $62,120 | -$12,154 | $49,965 | 19.6% |
| 90th Percentile (P90) | $75,290 | -$16,460 | $58,829 | 21.9% |
After federal income tax ($4,440), state tax ($1,632), and FICA ($4,095), a Water and Wastewater Treatment Plant and System Operators in Indiana takes home $43,370 per year — or $3,614 per month. The effective tax rate of 19.0% is relatively low compared to the national range.
A Water and Wastewater Treatment Plant and System Operators in Indiana faces an effective total tax rate of only 19.0%, keeping 81.0% of every gross dollar. That leaves $43,370 net out of $53,540 gross — a favorable outcome compared to states with combined rates above 30%.
Indiana applies a flat state income tax — every dollar of wage income is taxed at the same rate. For this Water and Wastewater Treatment Plant and System Operators salary that contributes $1,633 to the 3.0% effective state-tax burden.
Federal tax on this Water and Wastewater Treatment Plant and System Operators salary is $4,441 (44%), but combined state ($1,633, 16%) + FICA ($4,096, 40%) make up the other 56% of the bill.
A Water and Wastewater Treatment Plant and System Operators earning this gross in a no-income-tax state (e.g., Texas, Florida) would take home approximately $45,003 — only $1,633 (3.8%) more than in Indiana.
Indiana ranks #34 of 50 states for Water and Wastewater Treatment Plant and System Operators 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, $43,370 net/year works out to $3,614/month or $1,668/bi-weekly for this Water and Wastewater Treatment Plant and System Operators in Indiana — the numbers that actually hit a checking account after every deduction.
Where does a Water and Wastewater Treatment Plant and System Operators keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Indiana ranks #34 out of 50 states for Water and Wastewater Treatment Plant and System Operators after-tax take-home pay.
A Water and Wastewater Treatment Plant and System Operators in Indiana earning a median salary of $53,540 will take home approximately $43,370 per year after federal income tax ($4,440), state income tax ($1,632), and FICA ($4,095). That is $3,614 per month or $1,668 per bi-weekly paycheck.
The effective total tax rate for a Water and Wastewater Treatment Plant and System Operators in Indiana is 19.0%, broken down as: federal income tax 8.3%, Indiana state tax 3.0%, and FICA (Social Security + Medicare) 7.6%. This assumes a single filer with the standard deduction for 2024.
Indiana has a 3.0% flat rate. On a Water and Wastewater Treatment Plant and System Operators's median salary of $53,540, the state income tax amounts to $1,632 per year, which is an effective state rate of 3.0%.
After all taxes, a Water and Wastewater Treatment Plant and System Operators in Indiana takes home approximately $3,614 per month, or about $20.85 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 $53,540 for Water and Wastewater Treatment Plant and System Operators in Indiana, then subtract: federal income tax using 2024 IRS brackets ($14,600 standard deduction), Indiana state income tax (3.0% flat rate), Social Security (6.2% up to $168,600), and Medicare (1.45%). The result — $43,370/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