英国遅延利息計算
支払いが遅れた事業請求書に請求できる法定利息と固定手数料を計算します。
ブラウザ内で動作します。ファイルは端末の外に出ません。 確認方法を見る
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使い方
- 1項目を入力
数値を入力するか、必要なオプションを選びます。
- 2結果を見る
値を変えるとすぐに答えが更新されます。
- 3活用する
結果をコピーするか書き留めてください。何もどこにも送信されません。
About this tool
Enter the invoice amount, the days it is overdue and the Bank of England base rate. Under the Late Payment Act you can claim 8 percent above base rate a year plus a fixed fee of £40, £70 or £100. Rates and thresholds are for the 2026-27 tax year and can change. A guide only, check gov.uk for the official figures.
The rules
Businesses can charge statutory interest on a late invoice to another business. The rate is 8 percent over the base rate at the time. You can also claim fixed compensation of £40 for debts under £1,000, £70 for £1,000 to £9,999.99 and £100 for £10,000 or more.
Example
A £5,000 invoice that is 30 days late at a base rate of 4 percent adds about £49 of interest and a £70 fee.
Tips
State your late payment terms on invoices. Send a polite reminder first. These rules cover business to business supply, not consumers.
計算例
With the boxes at their starting values (Invoice amount (£): 5000; Days overdue: 30; Bank of England base rate (%): 4), the tool shows: Interest rate per year: 12.0%; Interest per day (£): 1.64; Interest due (£): 49.32; Fixed fee (£): 70; Total to claim (£): 5,119.32. Change any box to see your own numbers. The result updates as you type, and nothing leaves your browser.
最良の結果を得るためのヒント
結果を信頼する前にすべての項目を確認してください。数字がひとつ違うだけで答え全体が変わります。給与明細、請求書、証明書、契約書にある正確な数字を使い、計算した日付を控えておきましょう。税率、しきい値、ルールは随時変わるため、税金、手数料、法的な事柄については結果を概算とみなし、このページに記載された公式情報源で確認してください。シナリオは何度でも試せます。何も保存・送信されず、ページを再読み込みすると入力欄はクリアされます。
ポイント
よくある質問
Does this apply to consumers?
No. The Late Payment of Commercial Debts Act covers business to business payments.
Which base rate should I use?
The Bank of England rate in force on the date the debt became overdue. The tool uses the figure you type.
Can I charge more?
Contract terms can set a different rate if it is a substantial remedy.
Is the fee per invoice?
Yes, a fixed fee applies for each late invoice.