How to Find My SARS Tax Number Online

By Craig Will •  Updated: 01/10/25 •  4 min read

This article aims to assist taxpayers and patrons of the revenue service in accessing information vital to their everyday tax duties.

Today’s topic revolves around how you can find your tax number online.

What’s My Tax Number?

All registered taxpayers within the legal jurisdiction of South African law receive a tax number from the South African Revenue Service (SARS) in the capacity of an individual taxpayer or registered business.

- ADVERTISEMENT -

Commonly referred to in more traditional terminology as a Taxpayer Identification Number (TIN) or Tax Reference Number (TRN).

Your tax number is a unique and personal ten-digit numerical association assigned to you by SARS to track and record all of your tax-related activities.

A tax number is employed to identify people and companies for tax purposes and is necessary for completing a number of tax-related activities, such as tax returns.

Tax numbers are also used to identify a number of transactions with other government entities.

South African law dictates that individuals acquire a tax number as soon as they start working and that businesses acquire one the moment they begin operating and earning an income.

It is important to note that a tax number is a legal prerequisite to doing business with both SARS and a number of other government institutions.

Making use of an incorrect or fraudulent tax number can be construed as a violation of the law and is subject to prosecution.

How do I find my SARS tax number online?

There are a number of channels available to taxpayers that allow them to find and collect their tax numbers.

These include sending SARS a specific query, with the relevant details that align with those in the revenue service’s database.

Through conventional methods such as visiting a SARS branch, on the condition that you make an appointment first.

But as SARS attempts to fully modernize its services by 2026, a greater emphasize has been placed on accomplishing tasks through its online portal.

To find your SARS tax number online, simply access the online portal at www.sarsefiling.co.za, and use your credentials to access your personal account online.

If you are not registered for eFiling, click on the “Register” option on the top right-hand corner of the page.

Proceed to fill in the same details you used to register as a taxpayer, such as your ID number and residential address.

- ADVERTISEMENT -

Create a username and password for your account, followed by clicking on “Submit” to complete the process.

After successfully completing the required registration process, you should be able to successfully attain the contents of your tax number under the “Personal Information” section of your homepage.

Alternatively, one can visit SARS on their website at www.sars.gov.za.

Once you have accessed the revenue service’s homepage, click on the “Contact Us” option from the menu bar atop the homepage.

Follow that up by clicking on the “Request your Tax Number” option, complete the following form and select “What’s My Tax Number” as a query type.

This will then initiate a process whereby SARS will send you your tax number should they find that you were earnest during the verification stage of the process.

Is my tax number on my IRP5?

An IRP5 is a form of documentation issued by your employer that discloses within it the total amount of money you earned in a given tax year, as well as deductions.

Tax numbers can typically be found within an IRP5 tax certificate, usually at the top or the bottom of the form under the label of “Tax Number” or “TN.”

Should your tax number be unavailable on your IRP5 form, you can enquire about it from SARS by dialling their call centre at 0800 00 7277.

It is also important to ensure that the tax number filed in your tax returns matches that SARS has on record.

Be sure to check if the tax number online matches that found in tax certificates such as an IRP5, so as not to incur penalties when filing your tax returns.

Can SARS give me my tax number?

All tax numbers in the possession of taxpayers in South Africa originate from SARS, as no other entity, both public or private, can do so.

Tax numbers are a necessary prerequisite to completing tax-related activities as a taxpayer, and they are also used in tracking your monetary transactions by SARS.

- ADVERTISEMENT -

Keep Reading

How To Complete The Tax E-Filing Registration Process

How To Complete The Tax E-Filing Registration Process

Setting out on your tax e-filing journey in South Africa is a breeze. Just follow this roadmap:

How to Lodge a Complaint With SARS

How to Lodge a Complaint With SARS

SARS has a method to help disgruntled or dissatisfied clients lodge complaints. This article explains the steps to lodge a complaint with SARS. 

How to Deregister SARS Efiling

How to Deregister SARS Efiling

This article explains everything you need to know about how you can deregister SARS eFiling.

How to Activate my Bank Details on eFiling

How to Activate my Bank Details on eFiling

How Long Does SARS Take to Approve?

How Long Does SARS Take to Approve?

How Long Does SARS Take to Approve? SARS aims to activate new eFiling profiles within 48 hours where no supporting documents are required. 

How To Register With SARS Online?

How To Register With SARS Online?

Are you figuring out how to register with SARS online? If so, you’ve visited the right place! 

How to Unlock SARS eFiling Account

How to Unlock SARS eFiling Account

This guide will explore how to unlock SARS eFiling - including how to unlock the portal, reset your profile, reactivate your tax number, and re-register for eFiling.

How to Request A SARS Statement Of Account on eFiling

How to Request A SARS Statement Of Account on eFiling

Learn how to request a SARS statement of account on eFiling in South Africa. Keep track of your tax payments and expenses with this easy guide.

How Do I Register For SARS eFiling?

How Do I Register For SARS eFiling?

Registering for SARS eFiling is simple, and most people will complete it from the comfort of their homes. Here’s how to register for eFiling step-by-step.

Difference Between Tax Rebate and Tax Threshold?

Difference Between Tax Rebate and Tax Threshold?

Difference Between Tax Rebate and Tax Threshold? This article explains different concepts you should know about filing tax returns. 

How to Submit My Documents to SARS eFiling

How to Submit My Documents to SARS eFiling

How to Submit My Documents to SARS eFiling. This article will provide you with a comprehensive guide on submitting your documents to SARS.

Difference Between VAT and TAX?

Difference Between VAT and TAX?

What Is the Difference Between VAT and Tax in South Africa? This guide explains the difference between VAT and tax. 

How to Dispute SARS Efiling Assessment?

How to Dispute SARS Efiling Assessment?

This article explains everything you want to know about disputing SARS eFiling assessment. 

How to Become A Tax Practitioner At SARS

How to Become A Tax Practitioner At SARS

We’re here with the details you need about becoming a tax practitioner at SARS today. 

How to Check SARS Tax Compliance Status

How to Check SARS Tax Compliance Status

Today, we are diving deeper into how to check (and prove) your SARS tax compliance status if you need to