How To Check The Validity Of A VAT Number

By Tevait Feanle •  Updated: 01/23/24 •  5 min read

All VAT-registered entities in South Africa are required to display their VAT number on their invoices and in other relevant circumstances. This helps make interactions with other VAT-registered vendors easier and assures them that they are dealing with a legitimate company that is honestly registered with SARS. This becomes even more important when you are a B2B company, and not selling your goods to the end user. However, fraud is always a business risk, and you can’t simply trust that the given details are true and in good standing. How do you check the validity of a VAT number? Today we look at convenient ways to do so, as well as some other important issues you should consider.

- ADVERTISEMENT -

How Can I Check If A VAT Number Is Valid?

You can check if a VAT number is valid in South Africa by accessing the SARS VAT vendor portal to check it. You will input the VAT number you have been given, which should be a 10-digit number with no letters or special characters, and the system will check and verify it for you. The system is very literal and needs the VAT number in the correct format, so double-check everything when you enter it.

If you encounter a problem or cannot find the VAT number you have been given on the system, you can also contact the SARS helpline for further assistance. Do remember that the company’s income tax number, while also a 10-digit number issued by SARS, is not the same as its VAT number.

Why Is My VAT Number Invalid?

Your VAT number may show as invalid for several reasons. Firstly, check you are using the correct number- your VAT number, attached to the VAT tax type and shown on your Notice of Registration. It is common to accidentally confuse this number with your income tax number. They are not the same. You could have also made a simple mistake. 

If you are confident you are using your SARS-issued VAT number and it still shows as invalid, however, there is likely to be a problem. You could have lapsed out of eligibility for VAT registration through reduced turnover if you are a smaller business. The VAT thresholds are currently R50,000 in taxable income over a 12-month period for voluntary registration, with compulsory registration after you pass one million rand in taxable turnover.

You may also be non-compliant regarding your VAT returns and will need to bring this and your account up-to-date before you can continue. If none of these scenarios seem valid, we suggest you get in contact with SARS directly to investigate and resolve the issue. 

- ADVERTISEMENT -

How Do I Verify A Company In South Africa?

There are several types of company verification you can do in South Africa. To verify a company is registered for VAT, head to the SARS VAT portal we linked above and check if the VAT number is legitimate. If you want to check that a company exists and is still active and trading, you can do so through CIPC, the company registrar in South Africa. If you are worried about a company’s overall tax compliance, you can ask to be provided with a PIN to verify they are tax compliant. This is a newer system instigated by SARS to replace the older Tax Clearance Certificate, and gives near real-time data on tax compliance. 

What Does SARS Require For A Valid VAT Invoice?

There are 7 criteria needed for a valid VAT invoice in South Africa. These are as follows:

How Do I Check If A VAT Number Is Valid In South Africa?

The easiest way to check if a VAT number is valid in South Africa is by entering the provided VAT number into the SARS VAT vendor portal. This will easily and conveniently check the VAT number against SARS’s records and report back on whether it is valid and to whom it was issued. Make sure that the VAT number is not just valid, but matches with the company you are trading with. If you encounter any issues with this process, you can contact the SARS helpline for further assistance. The most common issue is a mistake in the VAT number format itself. 


Checking the validity of a VAT number is an important step before you do business with another VAT-registered company. Now you know how to do it, too.

- ADVERTISEMENT -

Keep Reading

How to Do VAT Audit

How to Do VAT Audit

To prevent such a scenario, SARS randomly selects taxpayers for audit.  This article explains everything you want to know about VAT audits.  

How Is VAT Calculated on Imported Goods In South Africa?

How Is VAT Calculated on Imported Goods In South Africa?

How Is VAT Calculated on Imported Goods In South Africa? Read on to learn how VAT is calculated on imported goods.

Who Qualifies To Pay VAT In South Africa?

Who Qualifies To Pay VAT In South Africa?

Today we are looking further at when a business is required to ‘pay VAT’, or rather, when they have to register as a VAT vendor with SARS.

How to Do A VAT Registration On eFiling

How to Do A VAT Registration On eFiling

There are different methods you can consider to register for VAT. This guide explains how you can do a VAT registration on eFiling. 

What Is Output And Input VAT?

What Is Output And Input VAT?

This article is like a game guide, delving into the intricacies of Output VAT and Input VAT

What is Deferred VAT?

What is Deferred VAT?

Deferred VAT in South Africa pertains to the provision extended to Customs clients who are duly registered or licensed

How To Calculate Customs VAT And Duties

How To Calculate Customs VAT And Duties

We are looking into VAT and duty more closely, with some important information you should be aware of if you are importing and exporting goods

How Much Does It Cost To Register A Company For VAT?

How Much Does It Cost To Register A Company For VAT?

Today we are looking more closely at the VAT registration process, especially regarding costs and requirements

Why Do We Pay VAT?

Why Do We Pay VAT?

Why Do We Pay VAT? Today we dig deeper into why VAT exists, what it does, and who it most affects. 

What is a VAT Reverse Charge in South Africa?

What is a VAT Reverse Charge in South Africa?

Specifically, when it comes to valuable metals, the responsibility for accounting and paying VAT does a bit of a switcheroo.

How to Complete a VAT 101 Form

How to Complete a VAT 101 Form

This guide explains everything you need to know about VAT registration. How to Complete a VAT 101 Form

How to Calculate Gross Amount From VAT

How to Calculate Gross Amount From VAT

This explains everything you want to know about calculating gross amount and net amount from VAT.   

Can You Claim VAT on Car Insurance?

Can You Claim VAT on Car Insurance?

This detailed manual will cover the essential components of VAT concerning automobile insurance in South Africa

What Is The Penalty For Late Payment Of VAT In 2026?

What Is The Penalty For Late Payment Of VAT In 2026?

Today we are looking at what to do in the event of penalty for late payment of VAT. 

How to Register for VAT Online

How to Register for VAT Online

Today, we look in-depth at the VAT registration process, how to do it online, and everything else you need to know