Federal Income Tax Estimator (Detailed) — Formula
## Federal Tax Estimation (Detailed)
This calculator provides a more comprehensive federal tax estimate by incorporating deductions, adjustments, and credits.
### Calculation Steps
1. **Start with gross income**
2. **Subtract deductions** (standard or itemized) and adjustments
3. **Apply tax brackets** to get tax before credits
4. **Subtract tax credits** (dollar-for-dollar reduction)
5. **Result**: Tax owed or refund
### Deductions vs Credits
- **Deductions** reduce taxable income (value = deduction x marginal rate)
- **Credits** reduce tax directly (value = full credit amount)
Credits are more valuable than deductions of the same amount.
This calculator provides a more comprehensive federal tax estimate by incorporating deductions, adjustments, and credits.
### Calculation Steps
1. **Start with gross income**
2. **Subtract deductions** (standard or itemized) and adjustments
3. **Apply tax brackets** to get tax before credits
4. **Subtract tax credits** (dollar-for-dollar reduction)
5. **Result**: Tax owed or refund
### Deductions vs Credits
- **Deductions** reduce taxable income (value = deduction x marginal rate)
- **Credits** reduce tax directly (value = full credit amount)
Credits are more valuable than deductions of the same amount.
Esempio Risolto
$90,000 gross income, single, standard deduction, no additional deductions or credits.
- Taxable income = $90,000 - $14,600 = $75,400
- 10% on $11,600 = $1,160
- 12% on $35,550 = $4,266
- 22% on $28,250 = $6,215
- Total tax = $11,641
- Effective rate = $11,641 / $90,000 = 12.9%