If you want to understand how corporate law affects buying or selling a company, start with this: the deal is never only about price. In England and Wales, corporate law shapes the structure of the sale, the checks each side must carry out, the documents needed, and the risks that stay in the deal after completion. The legal position can change depending on whether you are buying shares, buying assets, selling your own company, or selling part of a business.
A lot of business owners focus on valuation first. That matters, but legal structure matters just as much. A badly structured deal can leave a buyer with hidden liabilities or leave a seller tied to warranty claims long after the sale has gone through.
In This Article
The deal structure changes the legal risk
One of the biggest ways how corporate law affects buying or selling a company shows up in the choice between a share sale and an asset sale.
In a share sale, the buyer takes ownership of the company itself. That usually means taking on the company with all of its assets and liabilities, including liabilities that may not be obvious at the start.
In an asset sale, the buyer buys selected parts of the business, such as stock, contracts, goodwill, equipment, and customer lists. This can reduce some risk, but it often means more detailed work to transfer each asset properly. Employment law can also come into play because staff assigned to the business may transfer automatically to the buyer under TUPE rules.
Due diligence is a legal step, not a box-ticking exercise
Before any company sale goes ahead, the buyer usually carries out legal due diligence. This is where the buyer checks what they are actually buying and what problems may come with it. Due diligence often covers:
- company structure and ownership
- contracts
- employment issues
- disputes and claims
- intellectual property
- regulatory matters
- tax issues
- property and leases
This matters because the buyer cannot rely on assumptions. Due diligence is there to test the seller’s position and shape the protections written into the sale documents.
The sale agreement does the heavy lifting
Corporate law also affects the main legal documents used in the transaction. In most deals, that means a share purchase agreement or asset purchase agreement.
These agreements usually deal with:
- the sale price
- what is being sold
- completion steps
- warranties
- indemnities
- limits on claims
- restrictive covenants
- what happens if something goes wrong after completion
For buyers, warranties and indemnities matter because they can give a route to recover losses if the business is not what it was said to be. For sellers, the wording matters because it can limit future exposure.
Directors’ duties still apply during the deal
If you are a director involved in selling a company, your legal duties do not pause because a deal is on the table. Under the Companies Act 2006, directors must act within their powers and promote the success of the company, alongside other duties such as exercising independent judgment and reasonable care, skill and diligence.
That means directors need to think carefully about:
- whether the deal is in the company’s interests
- conflicts of interest
- approval steps
- how decisions are recorded
- what information is shared
This becomes even more important if there are multiple shareholders, connected parties, or a distressed sale.
Shareholder approval may be needed
Some transactions need formal approval from shareholders or members. For example, the Companies Act 2006 contains rules around substantial property transactions involving directors or connected persons. If these rules apply and the right approvals are not obtained, the transaction can create serious legal problems.
This is one reason business sales should not be treated as simple commercial handshakes. Internal company approvals, board minutes, shareholder resolutions, and constitutional documents can all matter.
Employment law can affect the sale
When a business or part of a business is sold by asset sale, employees assigned to that business may transfer to the buyer automatically. That can mean the buyer takes on employment rights and liabilities linked to those staff. This is a major issue in many transactions and should be reviewed early, not at the end.
For sellers, this can affect timing, consultation duties, and deal value. For buyers, it affects cost, risk, and post-sale planning.
Tax and hidden liabilities can change the value of the deal
Corporate law does not sit on its own. It works alongside tax, employment, property, and regulatory issues. A buyer may push for indemnities or a tax covenant if due diligence shows risks that are not yet fixed or fully priced.
This is often where deals become tense. A seller wants clean exit terms. A buyer wants protection. The legal drafting decides where that balance lands.
Competition and regulatory issues may need checking
Some transactions also raise competition or sector-specific regulatory issues. That can be more likely in larger deals, regulated sectors, or digital markets. Depending on the size and type of transaction, merger control or regulatory approval may need to be considered before completion.
For many smaller owner-managed businesses, this may not be the main issue. But it still needs to be checked early if the business operates in a regulated field.
What buyers and sellers should do early
If you are dealing with how corporate law affects buying or selling a company, the safest approach is to get legal input early. Both sides should understand:
- what is actually being sold
- which structure suits the deal
- what approvals are needed
- what liabilities may pass across
- how risk is divided in the documents
- what restrictions apply after completion
Leaving these issues too late can slow the sale, reduce trust, and create avoidable disputes.
Final thought
How corporate law affects buying or selling a company comes down to risk, structure, and control. The right legal setup can help a deal move cleanly. The wrong one can leave either side exposed after completion. If you are buying or selling a company in England and Wales, legal advice should not come in at the final stage. It should shape the deal from the start.
Need advice on buying or selling a business?
Onyx Solicitors advises business owners on company sales, acquisitions, shareholder matters, and commercial risk. Call 0121 268 3208 or email info@onyxsolicitors.com to book a free consultation.
