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 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! 

SARS: What ‘Audit & Verification’ Means

SARS: What ‘Audit & Verification’ Means

Let's delve into what 'Audit & Verification' entails and what individuals and businesses can anticipate.

All About Disability And Medical Expense Tax Credits 

All About Disability And Medical Expense Tax Credits 

Today we’ve assembled a quick guide to everything related to the disability and medical expense tax credits from SARS

How to Appeal Against SARS Penalties

How to Appeal Against SARS Penalties

Whether you're a business owner or an individual taxpayer, this guide can increase your chances of success in appealing against SARS penalties.  

How to Allocate Payments on SARS eFiling

How to Allocate Payments on SARS eFiling

RAV01 – Registration, Amendment, and Verification Form

RAV01 – Registration, Amendment, and Verification Form

This article explains everything you need to know regarding RAV01 registration, amendment, and verification forms.

eFiling Payments (Credit Push): How to Set Up Credit Push on eFiling

eFiling Payments (Credit Push): How to Set Up Credit Push on eFiling

Credit push payments are one of the methods for paying for returns due to SARS. Here’s everything you need to know to utilize this SARS payment method

How to Claim Medical Expenses From SARS

How to Claim Medical Expenses From SARS

In this article, we’ll discuss how to claim medical expenses on your tax return from SARS, including which medical expenses you can claim

Income Tax Penalties in South Africa

Income Tax Penalties in South Africa

Penalties do not necessarily mean legal action will follow, it simply means that your tax bill will be higher than necessary.

How Do I Submit A DTR01?

How Do I Submit A DTR01?

Generally, the DTR01 is a declaration of the dividends tax transaction, showing the details of the dividend payer

How to Change Portfolio Name on eFiling

How to Change Portfolio Name on eFiling

How do I change my portfolio name on eFiling? Here's how to change your portfolio name.

How to Get Proof of Registration From SARS

How to Get Proof of Registration From SARS

This article explains everything you should know about getting proof of registration from SARS. 

How to Register For Tax Directives On eFiling?

How to Register For Tax Directives On eFiling?

Can You Claim Tax Returns For Previous Years?

Can You Claim Tax Returns For Previous Years?

This article provides a comprehensive guide on how to claim tax returns for previous years

How to Get My IRP5 From SARS Online

How to Get My IRP5 From SARS Online