Why you need it

If you don't give your employer your IRD number and a tax code declaration (IR330), your pay is taxed at the non-declaration rate (45%). Bank interest is also taxed at 45% until you give your bank your IRD number. Apply before you start work.

What you need

• Passport
• Your Immigration NZ (INZ) visa application number (work, student or resident visa)
• Your overseas (Korean) tax number, if you have one — the form asks for it

Steps

1. Set up a myIR individual account first (you need it to apply)
2. Search Apply for an IRD number on the Inland Revenue website
3. Fill in the 'New arrival to New Zealand' application. IRD checks your identity with Immigration NZ, so you don't need to upload ID
4. Once approved, your number usually arrives by text or email within 2 days

You must apply before the 'final date to arrive' on your visa to use this quick process. After that date you apply through 'Living in New Zealand': you upload ID, have the original verified at an AA driver licensing centre within 20 days, and processing takes up to 10 working days.

Tell your employer your IRD number and tax code (usually M). After the tax year ends (April to March), check your automatic year-end assessment and any refund in myIR.