Roth IRA計算

使い方

1. 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. 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. 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 your current balance, how much you add each year, the years and the expected return. The calculator shows what you put in, the growth and the final value. Qualified Roth withdrawals are free of federal tax. Figures are for the 2026 tax year and can change. A guide only, check irs.gov or a tax professional.

Why Roth

You pay tax on the money before you contribute, but qualified withdrawals in retirement, including all growth, are free of federal income tax. The tool shows a rough 15 percent tax saved on the growth as a guide.

Limits

The 2026 contribution limit is $7,500, or $8,600 at 50 or older, and it phases out at higher incomes. You must have earned income. Withdrawals of earnings are tax free after age 59½ and five years.

Example

$7,500 a year for 30 years at 7 percent grows to about $708,000, from $225,000 contributed.

計算例

With the boxes at their starting values (Current balance ($): 0; Contribution per year ($): 7500; Years to grow: 30; Expected return per year (%): 7), the tool shows: Total you put in ($): 225,000; Growth ($): 483,456; Rough tax saved on growth at 15% ($): 72,518; Final balance ($): 708,456. 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。