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 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

What is Deemed VAT?

What is Deemed VAT?

What is Deemed VAT? Prepare yourself and immerse into the captivating realm of Value Added Tax (VAT).

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 Calculate VAT Payable Or Refundable

How to Calculate VAT Payable Or Refundable

This article explains everything you want to know about calculating VAT payable or refundable.    

How is VAT Charged on Second-Hand Vehicles

How is VAT Charged on Second-Hand Vehicles

This detailed guide will delve into various aspects concerning Value Added Tax on second-hand vehicles in South Africa.

How Much Does SARS Pay Out Monthly for VAT Claims?

How Much Does SARS Pay Out Monthly for VAT Claims?

How Much Does SARS Pay Out Monthly for VAT Claims? Keep on reading to learn everything you want to know about VAT claims.   

How To Apply For Monthly VAT Returns

How To Apply For Monthly VAT Returns

You do not apply for a specific VAT return period in South Africa. Instead, you will simply apply to SARS to be registered as a VAT vendor

What Are Zero-Rated VAT Items

What Are Zero-Rated VAT Items

Their handling for VAT purposes by the businesses that make them can be confusing, but we are here today to help explain zero-rated VAT items and how they are handled. 

What is VAT Exclusive?

What is VAT Exclusive?

Understanding VAT exclusive is like having a secret code to unlock the true cost of goods and services.

How Much Is the Fine for Late VAT Return?

How Much Is the Fine for Late VAT Return?

This guide explores the penalties for late VAT return submissions in South Africa, how late payment interest and penalties are calculated

How To Check VAT Refund Status

How To Check VAT Refund Status

Today we will walk you through how to How To Check VAT Refund Status in South Africa, as well as some other tips and tricks around refunds. 

What is the Difference Between TAX and VAT?

What is the Difference Between TAX and VAT?

There are two main characters in the tax story that individuals and businesses meet quite often - income tax and 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

How Does SARS Calculate Interest on VAT?

How Does SARS Calculate Interest on VAT?

This comprehensive guide will delve into how SARS calculates interest on VAT, including the interest rate

How To Avoid Paying VAT As A Business

How To Avoid Paying VAT As A Business

How To Avoid Paying VAT As A Business. There is only one legal strategy to use to avoid paying VAT as a business in South Africa