28th April 2026
Thinking of Leaving Your Company? Consider a Share Buybacks
A shareholder may decide to leave a company for many reasons. One common method is a share buyback, where the company purchases its own shares from the shareholder. This can be a practical and efficient way to exit a business, but it is important to understand how it is taxed.
When a company buys back shares, the amount paid to the shareholder is compared to the original cost of those shares. The difference between the sale price and the purchase price is called a capital gain. For example, if someone bought shares for €10,000 and later sells them back to the company for €50,000, the gain is €40,000. This gain is usually subject to Capital Gains Tax (CGT).
However, not all payments are treated as capital gains. In some cases, tax authorities may treat the payment as a dividend instead. This usually happens if the transaction does not meet certain conditions. Dividend treatment can result in a higher tax rate, so it is important to structure the transaction correctly.
To qualify for CGT treatment, several conditions must be met. The shareholder must typically own the shares for at least five years before the transaction, or two years in the case of inherited shares. They must also significantly reduce their ownership and no longer control the company after the transaction. In addition, the main purpose of the transaction should be to benefit the business, not simply to reduce taxes.
This is where the “trade benefit test” becomes important. A share buyback is more likely to qualify if it helps resolve disputes between shareholders, allows a retiring owner to exit, or prevents shares from being transferred to an unsuitable third party. These situations show that the transaction supports the company’s ongoing trade.
There are also important administrative and tax compliance requirements. Where CGT treatment applies, the company must report the transaction to the tax authorities by filing a Form AOS1 within nine months after the end of the accounting period in which the buyback took place. In addition, the payment made by the company is not tax-deductible against its profits. While there is no specific stamp duty exemption, in practice stamp duty may not arise if no formal stock transfer form is executed. The shares acquired are typically cancelled or held as treasury shares.
It is also worth considering whether any tax reliefs are available. For example, Entrepreneur Relief or Retirement Relief may significantly reduce the CGT liability. In family succession cases, additional reliefs such as Business Relief for Capital Acquisitions Tax may reduce the taxable value of the business transfer.
In summary, a share buyback can be a useful tool for exiting a business, but careful planning is essential. Understanding tax rules, meeting the required conditions, and handling the administrative steps correctly can make a significant financial difference.
Our experienced team can support you at every step of managing and restructuring your shares.
