Admin Boss Tax Knowledge Hub

Internet Expenses Tax Deduction

Updated: June 2026 5 min read
Quick Overview: You can claim the business portion of your internet costs if you work from home or use it for business purposes.
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Andre van Niekerk

Registered Tax Practitioner, Admin Boss

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Table of Contents
  1. Quick Answer
  2. How to Calculate
  3. Required Documentation
  4. Home Office Context
  5. Frequently Asked Questions
Quick Answer

Enter the deduction in the relevant section of your ITR12 tax return on SARS eFiling. Keep all supporting documents for 5 years.

How to Calculate

Calculate the percentage of internet use that is for business purposes. Apply this percentage to your total monthly internet cost and multiply by 12.

Required Documentation

Keep invoices from your ISP for the full tax year. A usage log showing business versus personal use helps support your claim if audited.

Home Office Context

If you claim a home office deduction, internet is often included as part of the office expenses proportional to the office floor area percentage.

Frequently Asked Questions

How do I claim this deduction on my tax return?

Enter the deduction in the relevant section of your ITR12 tax return on SARS eFiling. Keep all supporting documents for 5 years.

What documents do I need?

Keep receipts, invoices, tax certificates, logbooks, and any other proof of the expense. SARS may request these during verification.

Can Admin Boss help with my deductions?

Yes. Admin Boss is a registered tax practice that can review your deductions, ensure compliance, and maximise your tax savings. Visit adminboss.co.za/need-more-info/.

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.