Income Imposta calculator (UK e US)
Income Imposta, National Insurance o FICA e your effective e marginal rates, with the full band breakdown.
Informazioni su Income tax calculator (UK e US)
Income Imposta, National Insurance o FICA e your effective e marginal rates, with the full band breakdown.
Fa parte della sezione «Tasse e stipendio» di SmartCalcy. Funziona nel tuo browser senza account, usa la tua valuta e le tue unità (modificabili in cima alla pagina) e fornisce stime solo a scopo informativo, quindi verifica le indicazioni ufficiali prima di fidarti di un risultato.
Come usare il Income tax calculator (UK e US)
Cosa calcola e quando usarlo
Estimates income Imposta, National Insurance (UK) o Social Security e Medicare (US), your effective e marginal rates, e a band-by-band breakdown.
Come si usa, passo dopo passo
- Choose where you Paga Imposta: England/Wales/Northern Ireland, Scotland o the US.
- Enter your income per Anno prima Imposta.
- Add pension o 401(k) contributions paid before tax and, a the UK, a student loan plan.
- Read the Imposta, take-home Paga e marginal Tasso.
Cosa significa ogni dato
- Income – Gross Paga per the Anno.
- Filing status (US) – Sets the standard deduction e brackets.
- Pension Retribuite prima Imposta – Reduces taxable income.
- Student loan plan (UK) – Plan thresholds e rates decide repayments.
Come leggere i risultati
- Income Imposta – The Somma di tax a each band.
- Effective Tasso – Income Imposta ÷ income.
- Marginal Tasso – Totale tax on the next unità di income, including National Insurance o FICA.
- Imposta by band – How much was taxed A Ciascuno Tasso.
La formula
UK: taxable income = income − personal allowance (12,570, reduced by 1 per every 2 over 100,000). Tax è 20% on the first 37,700 di taxable income, 40% to 125,140 e 45% above a England; Scotland uses six bands. National Insurance è 8% between 12,570 e 50,270 e 2% above. US: taxable income = income − standard deduction, taxed in 10% a 37% brackets.
Un esempio pratico
A UK taxpayer earning 50,000 has a personal allowance di 12,570, so 37,430 è taxable at 20% per 7,486 di tax. National Insurance è 2,994, take-home pay è 39,520 e the marginal rate è 28%.
Ipotesi e limiti
- UK: standard Imposta code, no other income, no Marriage Allowance o benefits.
- US: federal Imposta only with the standard deduction. Stato taxes, Crediti e itemised deductions are excluded.
- Pension contributions are treated as Retribuite prima Imposta but not prima NI.
Errori comuni
- Applying the top rate a all income. Only income a each band è taxed A that band’s Tasso.
- Forgetting National Insurance o FICA.
Domande frequenti
Why è my marginal rate 60% between 100,000 e 125,140 a the UK?
The personal allowance è withdrawn as income rises, so each extra pound è taxed at 40% plus the lost allowance, an effective 60% before NI.
Does Scotland have different rates?
Yes. Scotland sets its own bands e rates per non-savings income. Choose Scotland a see them.
Dated rules: UK tax year 2026 in 2027 (6 April 2026 in 5 April 2027), dalle GOV.UK. Rates e thresholds change each year, so check GOV.UK before relying on a figure. Dated rules: US federal figures per tax year 2026 (IRS Rev. Proc. 2025-32 e IRS notices). These calculators are estimates per planning, not tax advice.
Strumenti correlati
Dettagli
- Personal allowance
- £12,570
- Taxable income
- £37,430
- National Insurance
- £2,994
- Totale tax e deductions
- £10,48021% di income
- Effective Imposta Tasso (income Imposta only)
- 15%
- Marginal Tasso on your next pound
- 28%income Imposta plus deductions on extra Paga
- Take-home per Anno
- £39,520
Imposta by band
| Band | Tasso | Imposta |
|---|---|---|
| £0 a £37,430 | 20% | £7,486 |