วิธีการคำนวณ Net Salary
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A net salary calculator estimates take-home pay after deducting income tax, national insurance or social security contributions, and pension contributions from gross salary.
สูตร
net = gross - federal_tax - FICA - state_tax - (optional: health_ins, 401k, other_deductions)
- gross
- Gross salary ($) — Annual pay before deductions
- fed_tax
- Federal income tax ($) — IRS withholding
- fica
- FICA (Social Security + Medicare) ($) — Payroll taxes (15.3% employer+employee total)
- net
- Net (take-home) salary ($) — Amount after all deductions
คำแนะนำทีละขั้นตอน
- 1Net Pay = Gross Pay − Income Tax − National Insurance − Pension
- 2Income tax bands apply progressively above the personal allowance
- 3NI in UK: 8% on earnings £12,570–£50,270, 2% above
- 4Pension contributions reduce taxable income
ตัวอย่างที่มีคำตอบ
อินพุต
£35,000 gross (UK)
ผลลัพธ์
Approx £27,800 net after tax and NI
อินพุต
$60,000 gross (US, single)
ผลลัพธ์
Approx $47,000 net after federal/state tax
อินพุต
£50,000 gross (UK)
ผลลัพธ์
Approx £37,500 net
คำถามที่พบบ่อย
What is FICA?
Federal Insurance Contributions Act. Social Security (6.2% + 6.2% employer) + Medicare (1.45% + 1.45% employer). Self-employed pay the full 15.3%.
Why is my paycheck less than expected?
Federal income tax (varies by bracket), FICA taxes, state income tax (if applicable), health insurance premiums, 401(k) contributions, other deductions.
How accurate is this calculator?
It provides estimates. Exact withholding depends on W-4 form, filing status, dependents, and recent tax law changes. Ask payroll for exact amounts.
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