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

Can You Claim VAT on the Commission Paid in South Africa?

Can You Claim VAT on the Commission Paid in South Africa?

This guide provides insights into claiming VAT on commission paid in South Africa, understanding the calculation of VAT on commission

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

When To Submit VAT Returns

When To Submit VAT Returns

You can submit VAT returns any time through the month following the end of the VAT period

What Differentiates Customs Duty From VAT?

What Differentiates Customs Duty From VAT?

Customs Duty is a tax that the South African government charges on imported goods. VAT is imports to local transactions.

How Long Does It Take to Claim VAT Back?

How Long Does It Take to Claim VAT Back?

In this comprehensive guide, we'll explore the timeframes for claiming VAT refunds, how to check the status of your refund

How To Submit A Zero VAT Return

How To Submit A Zero VAT Return

Today we will be looking at what to do in these cases, as well as how businesses that make zero-VAT-rated goods should handle their VAT return.

How to File a VAT Return

How to File a VAT Return

If you are a registered vendor and want to learn how to file a VAT return, we have you covered here. 

How to Claim Back VAT in South Africa

How to Claim Back VAT in South Africa

How to Claim Back VAT in South Africa. Read on to learn how to claim back value-added tax in South Africa.   

What Are the Products On Which No VAT Is Charged?

What Are the Products On Which No VAT Is Charged?

Let's delve into the products exempt from VAT in South Africa and compare zero-rated and exempt supplies.

How To Apply For VAT Exemption

How To Apply For VAT Exemption

There is also a wider category of goods and services that do not generate VAT on the end user. Today we look at these in more detail.

Can a South African Sole Proprietor Register for VAT?

Can a South African Sole Proprietor Register for VAT?

This comprehensive guide will address this question and provide insights into VAT registration for sole proprietors

How Long Does It Take To Get a VAT Number in South Africa?

How Long Does It Take To Get a VAT Number in South Africa?

This article explains everything you want to know about getting a VAT number in South Africa. 

What Is The Penalty For Late Payment Of VAT In 2025?

What Is The Penalty For Late Payment Of VAT In 2025?

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

What Is A VAT Reconciliation In South Africa?

What Is A VAT Reconciliation In South Africa?

How Much Must You Earn to Pay VAT in South Africa?

How Much Must You Earn to Pay VAT in South Africa?

This guide explores the income thresholds for individuals and businesses that trigger VAT obligations