When sell a business, there are five key tax concepts to consider: capital gains, income tax, the retirement reserve, transfer tax, and the additional annuity premium deduction. Together, these determine how much you’ll ultimately have to pay the tax authorities upon the transfer of your business. Always consult a tax advisor for your specific situation.
If you transfer your business, you will always have to deal with the tax authorities. These are the five most important tax terms you need to know before the business sale.
Throughout the sales process - from initial preparation to closing the deal - tax issues play an important role. Choosing the right structures will save you a lot of money. The pitfall of selling entrepreneurs is that they often think about the tax aspects at too late a stage, sometimes even just before signing the contract. Your tax advisor then has few options left to set up the right tax structure or otherwise reduce the tax burden.
When you sell your business, the Tax Office comes around the corner. This is because this government agency treats the business transfer as business termination (cessation) on your part. There is no clear answer to the question of how much you ultimately have to remit to the Tax Office. But these are the five most important tax terms you need to know when you sell a business.
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#1 - What is a capital gain on the sale of a business?
Capital gain is the difference between the book value of your business and its actual value at the time of transfer or business closure. The capital gain is part of your income in the year of the sale. You may deduct the capital gains deduction (up to 3,630 euros) from the capital gain. You must pay income tax on the final capital gain.
#2 - What is income tax when sell a business?
The income tax you owe depends on the legal structure of your business. When selling a sole proprietorship, a partnership, a general partnership, or a limited partnership, you owe income tax at the Box 1 rate (up to 49.5%). For a private limited company, you pay income tax at the Box 2 rate. For 2026, the Box 2 rate is 24.5% on amounts up to 68,843 euros and 31% on amounts above that.
#3 - What is the retirement reserve?
As a business owner for income tax purposes, you may annually reserve a portion of your profits for your old-age provision. That reserved portion is called the retirement reserve. Forming a retirement reserve does not mean that you are actually setting aside money; it is a reservation of a portion of profits. The reserve allows you to defer taxation on that part of the profit. So this gives you a short-term tax advantage.
#4 - What is transfer tax?
Often immovable property, such as a building, business space, retail space or office, is part of the business assets. These come into the hands of a new owner. The buyer will have to pay transfer tax on the value of the property. If the new owner is the one who contributed the property to the company, he does not have to pay transfer tax. Keep in mind that VAT may also be due.
#5 - What is the additional annuity premium deduction?
You can use a portion of the capital gain from the sale to pay annuity premiums. You are then entitled to an additional annuity premium deduction. The amount of the deduction depends on your age and your circumstances at the time of retirement. For 2026, the maximum additional annuity premium deduction ranges from 143,732 euros (general cases) to 574,867 euros (for example, for business owners aged 62 or older, or in cases of 45% or greater disability, provided the annuity payments begin within six months of retirement).
We’d like to add a general note: always consult a tax advisor who can assist you with tax issues during the sale of your business. This expert is up to date on the latest tax developments, has experience calculating the tax implications of various scenarios, and knows which levers to pull to reduce the tax burden.
Frequently Asked Questions About Taxes When Sell a Business
What is a capital gain on the sale of a business?
Capital gain is the difference between the book value of your business and its actual value at the time of transfer or business closure. You may deduct the capital gains deduction (up to 3,630 euros) from this amount; you pay income tax on the remaining capital gain.
How much income tax do you pay when you sell a business?
That depends on the legal structure. For a sole proprietorship, partnership, general partnership (VOF), or limited partnership (CV), you pay the Box 1 rate (up to 49.5%). For a private limited company (BV), you pay the Box 2 rate; for 2026, that is 24.5% up to 68,843 euros and 31% above that amount.
What is the retirement reserve?
The retirement reserve is a portion of your profit that, as a business owner, you are allowed to set aside annually for your retirement. You don’t actually set any money aside; it is an accounting reserve that defers taxation and thus provides a short-term tax benefit.
Who Pays Transfer Tax When Sell a Business?
The buyer pays transfer tax on the value of real property (such as a building) that is part of the business’s assets, unless the buyer previously contributed the property to the business. Also keep in mind that VAT may be due.
How much additional annuity premium deduction can you claim when you close your business?
That depends on your age and your circumstances at the time of retirement. For 2026, the maximum ranges from 143,732 euros to 574,867 euros, with the higher amount applying, for example, to business owners aged 62 or older.
Why Should You Hire a Tax Advisor When Sell a Business?
A tax advisor is familiar with the latest tax developments, has experience calculating various scenarios, and knows which levers to pull to reduce the tax burden—provided you bring them on board in time and not just right before signing the contract.
