Yes, but identify what you are actually buying
You can buy shares in an existing company that is registered for VAT, subject to the transaction and the company’s actual position. The purchase is different from obtaining a VAT number for a company you already own. An advertisement offering an “existing VAT number” should therefore lead to a question about the legal entity, not just the number on the certificate.
A company has its own legal identity under section 19 of the Companies Act. In a share purchase, the owners change while the company continues. The practical implication is that its earlier records and obligations remain relevant. They do not disappear because the buyer intends to start a new business activity.
Before discussing the price, write the proposed transaction in one sentence: “I will acquire shares in this named company, which will carry on this activity.” If the intended arrangement is instead to move assets or a business between two entities, explain that clearly. It needs a different review, including the tax treatment of the transaction itself.
A VAT number cannot simply be attached to another company
SARS registers the person carrying on the enterprise under its VAT registration requirements. The ordinary consequence is that you should not put one company’s VAT number on another company’s invoices merely because the same individual owns both. Ownership in common does not make their contracts, supplies and records interchangeable.
Consider an illustrative situation. You already operate Company A, and a customer places an order with it. You then buy Company B, which has an existing VAT registration. The purchase alone does not make Company B the supplier under Company A’s order. Decide which company is contracting and supplying, and agree any necessary changes with the customer before invoicing.
Keep the same discipline with purchases. Ask suppliers to invoice the entity that actually acquires the goods or services. Do not solve a mismatch by editing a document to display the preferred number. Have the underlying arrangement and the correct invoicing treatment reviewed. This is particularly important where money has already changed hands or goods have already been delivered.
When an existing registration may be useful
An existing VAT registered company may be worth considering when a buyer has not yet committed the proposed activity to another entity and can review the company properly. The attraction is that incorporation and registration have already occurred. That still leaves the purchase, record changes, authorised access and the commercial setup to complete.
Be precise about the deadline. A client may need evidence during supplier onboarding, while another may need the correct tax invoice when the supply is made. A tender may also require documents unrelated to VAT. Read the actual request rather than assuming the VAT number is the only obstacle.
If your present company has established customer contracts, banking, staff or operating records, assess VAT registration for that company first. Moving activity into another entity can create practical work of its own. The article comparing a shelf company with VAT and a new VAT application helps organise that decision without assuming either route is always quicker.
Share purchase, asset purchase and name change are different
| Proposed action | Question to resolve |
|---|---|
| Buy shares in Company B | What history, ownership and tax evidence belongs to Company B? |
| Company A buys assets from Company B | Which entity makes each supply, and what is the correct tax treatment? |
| Rename Company B | How will the accepted name change be reflected in tax and supplier records? |
| Use Company B for a new contract | Has the customer accepted Company B as the contracting supplier? |
The table is a decision aid, not a ruling on a particular sale. Asset transactions, transfers of operating businesses and group arrangements can have specific consequences. Ask an appropriately qualified adviser to review the documents before assuming that the treatment of a simple share purchase applies.
Keep an organisation chart or plain list of the entities if several companies are involved. Beside each, show its registration number, owner, business activity and role in the transaction. That basic record often reveals a misunderstanding before it reaches an invoice or application.
What to check before buying the shares
Match the company’s identity across the sale agreement, incorporation records, shareholder information and VAT evidence. Ask the seller to identify the shares being sold and any restriction or consent affecting the transfer. The company’s constitutional and ownership records should support the proposed transaction, rather than being treated as paperwork to sort out afterwards.
Request the tax return history, available financial records and a list of known liabilities. Ask specifically about disputes, loans, guarantees and commitments. A company that has not made sales can still have obligations. Have unexplained items investigated before agreeing that the records are satisfactory.
Use an authorised Tax Compliance Status verification as one check. Its result is current at the moment of verification, not a guarantee about everything the company has done. Record the date and reconcile any outstanding issues with the seller’s explanation.
Vatco’s buy a VAT registered company service is the relevant starting point if you need help assessing the purchase route. Confirm what review is included and whether specialist review is needed for the particular history.
Ask who will complete each part of the handover
Request a written list of the seller’s deliverables. It should identify the sale documentation, ownership records, director changes, tax information and supporting documents the buyer will receive. It should also name the person responsible if a submission is rejected or an earlier record cannot be retrieved.
Ask these questions before signing:
- What proves the seller’s authority to sell the shares?
- What records will demonstrate the new ownership position?
- Which earlier tax periods need action, and who supplies the underlying information?
- How will authorised access and official contact details be updated?
- What work is excluded from the quote?
- What remedy is agreed if a material statement about the company is wrong?
The distinction between owners and directors matters here. Review CIPC’s company and ownership FAQs and keep the share records with the transaction file. Shareholding changes and director or company amendments should not be collapsed into a vague promise to “put the company in your name”.
Can you change the company name afterwards?
A company name change may be possible through the relevant CIPC process. Make it a defined part of the scope if it matters to the purchase. Ask how pending invoices, banking records and customer checks will be handled while different systems are being updated.
SARS discusses the practical effect of a name change in VAT Connect Issue 13: suppliers should be informed once CIPC has effected the change, and SARS particulars must be updated. Use the current RAV01 guidance for maintaining registered details.
Keep the accepted name change document with the earlier incorporation and VAT records. It explains continuity when a customer sees two names. Do not invent an earlier trading name or alter historical invoices simply to make the file look consistent. Record the dates and ask for corrections through the proper process where needed.
Which company number should I compare with the details on a VAT registration notice?
Use the company registration number identifying the legal entity in the current CIPC records and proposed share-sale documents. Do not expect it to be the same number as the SARS VAT reference. The company registration number, income-tax reference and VAT reference serve different purposes. The check is that each belongs to the same legal entity, not that their digits match.
Start with the named company being purchased and build an identity cross-reference. Record its legal name, company registration number, known historical names and the VAT reference shown in authentic SARS evidence. Compare the taxpayer identity and registration details on the notice with the current company records. If the notice does not display enough information to establish the connection, obtain an appropriate SARS record or clarification through the authorised representative rather than guessing.
A name difference may reflect a genuine accepted name change, but similar names do not prove continuity. Compare the registration records and retain the documents explaining the change. If the evidence points to another company, stop treating the notice as proof of the proposed company's VAT registration. Common directors or ownership do not make the registrations interchangeable.
Also distinguish identity from current status. Matching the entity explains whose registration is shown; it does not establish that the old notice remains current or that all returns and debts are in order. Use the relevant SARS verification process and retain its date and result as a separate check.
For example, Company A's sale agreement cannot be supported merely by a VAT notice for similarly named Company B. The seller should resolve the mismatch with authentic records before the buyer relies on it. Do not edit the notice, use another entity's number on invoices or accept a promise to transfer the number later. A company offered with a VAT number still needs a clear and verifiable identity chain.
Before you use the company’s VAT number
Confirm the contracting entity, current VAT position, invoice details and authorised tax access together. Check that the person preparing the first return has the earlier records and understands the handover date. Keep receipts and expenses attributable to the correct company from the beginning.
For your initial enquiry, explain whether you already own a company, whether contracts have been signed and why an existing registration is being considered. Use Vatco’s VAT registered company purchase service to discuss the available route. A proposed company still needs its own checks; an enquiry does not confirm stock or approval.
The decision is about taking control of a suitable legal entity with usable records. If the only proposed benefit is borrowing its VAT number for another business, the structure needs to be reconsidered before any transaction proceeds.
Sources and review
Checked on 30 September 2026. Use the linked official guidance for current requirements and forms.
- Companies Act 71 of 2008
Section 19: separate and continuing legal personality of a company. The share versus entity distinction in this article follows from this principle.
- SARS: Register for VAT
VAT registration applies to the person carrying on the enterprise; official current requirements.
- SARS: Guide to the registration, amendments and verification form
How registered legal entity details are maintained and when evidence may be needed.
- SARS VAT Connect Issue 13: Changes in the name of a company
Explains invoice name changes and notifying SARS after CIPC changes. Used for this specific distinction, not current thresholds.
- CIPC: Frequently asked questions
Company share records and beneficial ownership reporting are distinct from director records.
- SARS: How to verify Tax Compliance Status
Taxpayer authorisation and the date-specific nature of a verification result.
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