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NZ Secondary Tax Code Calculator

New ZealandのNZ Secondary Tax Code Calculator。現地ルールとNZ$通貨対応。

地域ルールの詳細

管轄New Zealand

通貨NZ$ (NZD)

施行日2025年4月1日

バージョン1.0

最終確認日2026年4月18日

次回確認日2026年7月1日

情報源: Inland Revenue (IRD) secondary tax codes and rates表示

New Zealand の税率とルール

Secondary tax codes are based on estimated annual total income from all sources. Current rates before ACC levies: SB 10.5% up to $15,600; S 17.5% from $15,601 to $53,500; SH 30% from $53,501 to $78,100; ST 33% from $78,101 to $180,000; SA 39% above $180,000.

値を入力

Estimated Total Annual Income

Include income from all jobs and other taxable sources

Annual Secondary Income

Estimated income from the second job or extra payer

Student Loan

Secondary Pay Frequency

結果

上の欄に値を入力し、「計算する」をクリックしてください。

AIアシスタント

この計算機について質問する

NZ Secondary Tax Code Calculatorの計算式を説明したり、結果を解釈したり、フォローアップの質問に答えることができます。

質問してみましょう

Estimate the secondary tax code to give an employer or payer for a second income source. Rates are before ACC levies and are based on total annual income from all sources.

免責事項: この計算機は公開されている規則に基づいています。結果は情報提供のみを目的としています。正確な情報は公式の情報源または専門家にご確認ください。最終確認日: 2026年4月18日。

計算式

\text{Secondary Code} = f(\text{Total Annual Income})

IRD secondary tax codes are chosen from your estimated total annual income, not only the second job income. The selected code sets the flat withholding rate for the secondary income source before ACC levies.

よくある質問

When do I use a secondary tax code in New Zealand?

Use a secondary tax code when you receive taxable income from more than one source, such as a second job, benefit, pension, ACC payment, or paid parental leave.

What are the current NZ secondary tax codes?

The current secondary codes are SB, S, SH, ST, and SA. The code depends on your estimated total annual income from all sources.

Are secondary tax rates before ACC?

Yes. IRD lists secondary tax rates before ACC levies, so ACC deductions may still apply separately to liable earnings.

What if I have a student loan?

If you have an NZ student loan, the secondary tax code normally has SL added, such as S SL or SH SL.

Can IRD change my tax code?

Yes. IRD may ask your payer to change your tax code if it appears unsuitable, to help avoid an end-of-year bill or overpayment.