英國逾期付款利息計算器

使用方法

1. 1
   填寫各項

   輸入數字或選擇所需選項。

2. 2
   檢視結果

   更改任何值時，答案會立即更新。

3. 3
   使用結果

   複製結果或記下來。不會向任何地方傳送任何內容。

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.

計算示例

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.

獲得最佳結果的提示

在相信結果之前先檢查每一個輸入項，因為一個錯誤的數字就會改變整個答案。請使用工資單、賬單、證書或合同上的準確數字，並記下計算日期。稅率、門檻和規則會不時變化，因此對於稅費和法律事務，請將結果視為估算，並與本頁註明的官方來源核對。您可以嘗試任意多個方案；不會儲存或傳送任何內容，重新整理頁面會清空輸入。