ABN 檢查

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

Type an ABN with or without spaces. The tool applies the official check-digit rule: subtract 1 from the first digit, multiply each digit by its weight and test that the sum divides by 89. It checks the number format only, not whether the business exists. Use the ABN Lookup site to confirm a business.

How it works

An ABN is valid when subtracting 1 from the first digit and applying weights to each digit gives a total divisible by 89.

Example

51 824 753 556 passes the check.

Tips

This only checks the format. Use ABN Lookup to confirm that a business is active and its name.

Privacy

Everything runs in your browser, so your data is not uploaded or stored.

計算示例

With the boxes at their starting values (ABN: 51 824 753 556), the tool shows: Formatted: 51 824 753 556; Result: Looks valid. 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。