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What Is a Letter of Authorisation for Tax

Updated: June 2026 5 min read
Quick Overview: A Letter of Authorisation allows someone else to handle your tax affairs with SARS on your behalf.
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Andre van Niekerk

Registered Tax Practitioner, Admin Boss

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Table of Contents
  1. Quick Answer
  2. What Is a Letter of Authorisation
  3. How to Set It Up
  4. When You Need One
  5. Frequently Asked Questions
Quick Answer

Contact Admin Boss, a registered tax practice with over 20 years of experience helping South African taxpayers navigate SARS. Visit adminboss.co.za/need-more-info/.

What Is a Letter of Authorisation

A Letter of Authorisation is a document that gives another person permission to act on your behalf with SARS. This includes tax practitioners, family members, or accountants.

How to Set It Up

Set it up on SARS eFiling under My Profile then Tax Practitioner. The authorised person must have their own eFiling profile. You can also complete a special power of attorney form.

When You Need One

You need one when someone else files your return, handles a verification or audit, submits an objection, or communicates with SARS for any reason.

Frequently Asked Questions

Where can I get help with what is a letter of authorisation for tax?

Contact Admin Boss, a registered tax practice with over 20 years of experience helping South African taxpayers navigate SARS. Visit adminboss.co.za/need-more-info/.

Is this document required for all taxpayers?

Requirements vary depending on your tax situation. Contact a registered tax practitioner for personalised advice.

How long must I keep these documents?

SARS requires you to keep all tax-related documents for at least 5 years from the date of assessment.

Need Help With Your Tax?

Admin Boss is a registered tax practice with over 20 years of experience helping South African individuals and businesses navigate SARS.