GeraCash / US tax rates / Idaho
Idaho: US Effective Tax Rate 2025
At $75,000 gross (single filer, 2025), the Gera US Effective Tax Rate (GUSETR) in Idaho is 24.2% — combining IRS 2025 federal income tax, FICA, and 5.70% flat rate. The national 51-state average is 23.5%.
What is the total effective tax rate in Idaho on a $75,000 salary in 2025?
At $75,000 gross salary (single filer, 2025), the Gera US Effective Tax Rate (GUSETR) in Idaho is 24.2%, combining IRS 2025 federal income tax, FICA (Social Security 6.2% + Medicare 1.45%), and 5.70% flat rate. The national 51-state average at $75k is 23.5% — Idaho is above or equal to average (IRS 2025, state DOR, Tax Year 2025).
Tax breakdown in Idaho at $75,000 gross (2025)
| Tax component | Amount | % of gross |
|---|---|---|
| Federal income tax (IRS 2025 brackets) | $8,114 | 10.8% |
| FICA — Social Security (6.2% on ≤$176,100) | $4,650 | 6.2% |
| FICA — Medicare (1.45%, no cap) | $1,088 | 1.45% |
| State income tax (Idaho, 5.70% flat rate) | $4,271 | 5.69% |
| Total tax (GUSETR numerator) | $18,123 | — |
| GUSETR (total ÷ gross × 100) | — | 24.2% |
Idaho GUSETR across salary grid (2025)
| Gross salary | Federal tax | FICA | State tax | Total tax | GUSETR |
|---|---|---|---|---|---|
| $25,000 | $1,000 | $1,913 | $1,424 | $4,337 | 17.3% |
| $35,000 | $2,162 | $2,678 | $1,993 | $6,833 | 19.5% |
| $50,000 | $3,962 | $3,825 | $2,848 | $10,635 | 21.3% |
| $60,000 | $5,162 | $4,590 | $3,417 | $13,169 | 21.9% |
| $75,000 | $8,114 | $5,738 | $4,271 | $18,123 | 24.2% |
| $100,000 | $13,614 | $7,650 | $5,695 | $26,959 | 27% |
| $125,000 | $19,247 | $9,563 | $7,119 | $35,929 | 28.7% |
| $150,000 | $25,247 | $11,475 | $8,543 | $45,265 | 30.2% |
| $200,000 | $37,247 | $13,818 | $11,390 | $62,455 | 31.2% |
| $250,000 | $52,263 | $14,543 | $14,238 | $81,044 | 32.4% |
Federal tax computed on (gross − $15,000 standard deduction). FICA = SS 6.2% on first $176,100 + Medicare 1.45% (no cap). State tax = gross × 5.70% flat rate (upper-bound proxy). Full methodology.
Calculate your GUSETR in Idaho
Enter your gross salary to see your personalised effective tax rate — federal + FICA + state
Idaho: flat rate 5.70%. Federal standard deduction $15,000 applied.
Federal tax computed on taxable income = $75,000 − $15,000 standard deduction = $60,000. Single filer, Idaho 2025. Not tax advice — consult a CPA for your exact liability.
Idaho income tax 2025: frequently asked questions
- Does Idaho have a state income tax in 2025?
- Yes. Idaho has a 5.70% flat rate in 2025 (flat rate applies to all income). This is applied to gross income as an upper-bound proxy in the GUSETR computation. Your actual effective state rate may be lower if you are in a graduated bracket below the top.
- How is the $75k GUSETR of 24.2% computed for Idaho?
- At $75,000 gross: taxable income = $75,000 − $15,000 standard deduction = $60,000. Federal tax on $60,000 using 2025 IRS brackets (10%/12%/22%): $1,193 + $4,386 + $2,530 = $8,108. FICA: Social Security $75,000 × 6.2% = $4,650; Medicare $75,000 × 1.45% = $1,088; total FICA = $5,738. State tax = $75,000 × 5.70% = $4,271. GUSETR = (18,123 total) ÷ $75,000 = 24.2%.
- What is included in FICA and is it part of GUSETR?
- Yes. FICA (Federal Insurance Contributions Act) is the payroll tax for Social Security and Medicare. In 2025: Social Security is 6.2% on wages up to $176,100 (the SS wage base); Medicare is 1.45% on all wages. Only the employee share is included in GUSETR (employers match these amounts separately). Source: IRS Topic No. 751 (irs.gov/taxtopics/tc751).
- How does Idaho's GUSETR compare to the national average?
- At $75,000 gross, Idaho's GUSETR is 24.2% versus the unweighted 51-state average of 23.5%. Idaho is 0.7 percentage points above average — a higher-tax state.
- What is the 2025 federal income tax standard deduction?
- The IRS 2025 standard deduction for single filers is $15,000, announced in IRS Revenue Procedure 2024-40 (US public domain). GUSETR computes federal tax on (gross − $15,000) — no itemized deductions are assumed. Your actual federal tax may be lower if you itemize (mortgage interest, charitable contributions, state taxes above SALT cap, etc.).
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Contains public sector information published by Internal Revenue Service (IRS) and licensed under the US Government Work (public domain). Source: IRS 2025 Federal Tax Brackets + State DOR Tables + Wikipedia State Income Tax (Tax Year 2025, published October 2024 (IRS Rev. Proc. 2024-40)).