I’m considering selling my company later this year. I’m anticipating making a £2m gain. What would happen in terms of taxes if I delayed the sale until after April 2026? 

Arthur replies: 

If the sale takes place in this tax year (i.e., before 6 April 2026), the rate of business asset disposal relief applicable is 14%. In the next tax year (i.e., after 5 April 2026), the rate is 18%. Since the lifetime limit for business asset disposal relief is £1m, (and assuming you haven't claimed any business asset disposal relief until now), if you sell before 6 April 2026, the capital gains tax rate will be 14% on the first £1m (i.e.,£140K), and the regular capital gains tax rates on the next million, which is 24% for a higher-rate taxpayer. If you sell after 5 April 2026, the capital gains tax rate will be 18% on the first £1m (i.e., £180K), and the regular capital gains tax rates on the next million, which is 24% for a higher-rate taxpayer. So, it makes a difference of £40,000 in tax.