美國聯邦所得稅計算器

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 your gross income and filing status. The calculator subtracts the standard deduction and applies the federal tax brackets to show your tax, marginal rate, effective rate and income after federal tax. Figures are for the 2026 tax year and can change. A guide only, check irs.gov or a tax professional.

How the brackets work

US income tax is progressive. Each rate applies only to the slice of income inside its bracket, so moving into a higher bracket does not tax all of your income at the higher rate. The 2026 standard deduction used here is $16,100 for single filers, $32,200 for married filing jointly and $24,150 for head of household.

Example

A single filer with $85,000 income has $68,900 of taxable income. The federal tax is about $9,000, an effective rate near 10.6 percent, even though the top slice is taxed at 22 percent.

Not included

State tax, FICA, credits such as the child tax credit, itemized deductions and the qualified business income deduction are not modelled.

計算示例

With the boxes at their starting values (Gross income for the year ($): 85000; Filing status: Single), the tool shows: Standard deduction ($): 16,100; Taxable income ($): 68,900; Marginal rate: 22%; Effective rate: 11.6%; Income after federal tax ($): 75,130; Federal income tax ($): 9,870. 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。