イギリスSole Trader Self-Assessment & Class 4 NICsビジネスUK Sole Trader Self-Assessment Tax & Class 4 National Insurance Calculator
Calculate HMRC Self-Assessment liabilities for sole traders and freelancers: Income Tax (£12,570 Personal Allowance, 20% Basic, 40% Higher) and Class 4 National Insurance (6% between £12,570 and £50,270, plus 2% above £50,270).
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計算結果Sole Trader Self-Assessment & Class 4 NICs
Total Combined Self-Assessment Bill (Income Tax + Class 4 NICs)
£8,951.8
Net Take-Home Cash Remaining
£38,048.2
Class 4 National Insurance (6% / 2%)
£2,065.8
詳細な計算内訳
Net Profit
£47,000
Income Tax
£6,886
Class 4 NIC
£2,065.8
Net Cash
£38,048.2
計算方法と根拠
Taxable Profit = Total Turnover - Allowable Business Expenses. Class 4 NIC = 6% (£12,570 to £50,270) + 2% (>£50,270). Income Tax = Standard progressive PAYE tax brackets.
法的免責事項および案内
Class 2 NICs are now abolished/treated as paid. Class 4 NIC main rate is 6% following recent autumn budget cuts.
本計算機は教育および参考目的のみに提供されています。表示される結果は法的または拘束力のある助言を構成するものではありません。
よくある質問 (FAQ)
If your Self-Assessment tax bill exceeds £1,000, HMRC requires two advance payments (each 50% of the prior year's tax) due on 31 January and 31 July.
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