Last updated: 2025 BLS data · Page refreshed:
How much does a Hydrologists actually take home in Montana?
Progressive (up to 5.9%) — 25.6% effective total tax rateData: BLS OEWS 2025 + IRS/State Tax Brackets 2024 • Updated 2026-05-19
Detailed line-by-line tax calculation for a Hydrologists earning $84,500 in Montana (single filer, standard deduction).
| Tax Component | Annual Amount | Effective Rate |
|---|---|---|
| Gross Salary (Median) | $84,500 | — |
| Federal Income Tax | -$10,431 | 12.3% |
| Montana State Income Tax | -$4,739 | 5.6% |
| Social Security (OASDI) | -$5,239 | 6.2% |
| Medicare | -$1,225 | 1.5% |
| Total Taxes | -$21,634 | 25.6% |
| Take-Home Pay | $62,865 | 74.4% |
Take-home pay varies significantly across experience levels. Here is the after-tax breakdown for each salary percentile of Hydrologists in Montana.
| Percentile | Gross Salary | Total Taxes | Take-Home Pay | Tax Rate |
|---|---|---|---|---|
| 10th Percentile (P10) | $63,060 | -$14,012 | $49,047 | 22.2% |
| 25th Percentile (P25) | $81,330 | -$20,507 | $60,822 | 25.2% |
| Median (P50) | $84,500 | -$21,634 | $62,865 | 25.6% |
| 75th Percentile (P75) | $104,740 | -$28,830 | $75,909 | 27.5% |
| 90th Percentile (P90) | $115,210 | -$32,553 | $82,656 | 28.3% |
After federal income tax ($10,431), state tax ($4,739), and FICA ($6,464), a Hydrologists in Montana takes home $62,865 per year — or $5,238 per month. The effective tax rate of 25.6% is moderate compared to the national range.
With an effective total rate of 25.6%, a Hydrologists in Montana keeps $62,865 of $84,500 gross — roughly typical for U.S. middle-income earners once federal, FICA and state taxes are combined.
Montana uses a progressive state income tax, so brackets escalate as wages rise. For this Hydrologists salary the state tax works out to $4,740 (5.6% effective) — on top of federal and FICA.
Federal tax on this Hydrologists salary is $10,431 (48%), but combined state ($4,740, 22%) + FICA ($6,464, 30%) make up the other 52% of the bill.
Moving this same Hydrologists salary to a zero-state-tax state would yield around $67,605 net — a gain of $4,740 (7.5%) per year versus Montana.
Montana sits near the bottom (#27 of 34) for Hydrologists after-tax earnings. Relocation, negotiation, or credential stacking typically show the clearest ROI in bottom-quartile states.
Translated into paycheck cadences, $62,865 net/year works out to $5,239/month or $2,418/bi-weekly for this Hydrologists in Montana — the numbers that actually hit a checking account after every deduction.
Where does a Hydrologists keep the most of their paycheck? Top 10 states ranked by after-tax take-home pay.
Montana ranks #27 out of 34 states for Hydrologists after-tax take-home pay.
A Hydrologists in Montana earning a median salary of $84,500 will take home approximately $62,865 per year after federal income tax ($10,431), state income tax ($4,739), and FICA ($6,464). That is $5,238 per month or $2,417 per bi-weekly paycheck.
The effective total tax rate for a Hydrologists in Montana is 25.6%, broken down as: federal income tax 12.3%, Montana state tax 5.6%, and FICA (Social Security + Medicare) 7.6%. This assumes a single filer with the standard deduction for 2024.
Montana has a progressive (up to 5.9%). On a Hydrologists's median salary of $84,500, the state income tax amounts to $4,739 per year, which is an effective state rate of 5.6%.
After all taxes, a Hydrologists in Montana takes home approximately $5,238 per month, or about $30.22 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 $84,500 for Hydrologists in Montana, then subtract: federal income tax using 2024 IRS brackets ($14,600 standard deduction), Montana state income tax (progressive (up to 5.9%)), Social Security (6.2% up to $168,600), and Medicare (1.45%). The result — $62,865/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