When a couple separates, the shared house is often the biggest point of contention—and an underestimated tax trap. Anyone who moves out within ten years of the purchase and transfers their co-ownership share to their former partner may have to pay tax on the gain under certain circumstances. This is because moving out means that the tax exemption for owner-occupied property no longer applies to the partner who moved out. We explain when speculation tax is incurred in a divorce, how high it is, and what structuring can be used to avoid it.
Speculation Tax: The Ten-Year Period
There is no separate tax rate colloquially referred to as “speculation tax.” The term means income tax on a private sale transaction under Section 23 EStG. If you sell a plot of land or an apartment and no more than ten years lie between acquisition and sale, the gain is generally taxable.
The relevant dates are those of the notarized purchase agreements. If the ten-year period is exceeded, the sale is completely tax-free—regardless of how high the gain is. Within the period, the gain is added to your other income and taxed at your personal income tax rate. Only if the total gain from private sale transactions in a year remains below the exemption limit of 1,000 euros (increased since 2024 from the previous 600 euros) does it remain tax-free.
The Exception for Owner-Occupied Property
There is an important exception for an owner-occupied home. Under Section 23 (1) sentence 1 no. 1 sentence 3 EStG, the sale remains tax-free if the property
- was used exclusively for the owner’s own residential purposes throughout the entire period between acquisition and sale, or
- was used for the owner’s own residential purposes in the year of sale and the two preceding years.
For the second option, continuous owner-occupation covering the year of sale and the two preceding calendar years is sufficient—the property only needs to have been occupied for part of the year of sale. Anyone who lives in their home can therefore sell it tax-free even within the ten-year period. However, this very exemption often becomes a problem when the couple separates.
Divorce: Why Moving Out Costs You the Tax Exemption
In a separation, one partner generally moves out while the other remains in the house with the children. For The departed partner’s use of the property for their own residential purposes ends as a result. If they later transfer their co-ownership share to the ex-partner who remained in the house in exchange for payment, this is considered a taxable disposal – and the owner-occupancy exemption no longer applies.
The Federal Fiscal Court (BFH) confirmed this scenario at the highest judicial level in its judgment of 14 February 2023 (IX R 11/21). The key statements are crucial for separating couples:
- The transfer of the co-ownership share is a disposal. If one spouse sells their share to their former partner within the ten-year period as part of a divorce consequences agreement, this constitutes a taxable private disposal transaction.
- A predicament offers no protection. In the case decided, the selling partner faced the threat of a partition auction. The BFH made clear: An economic or emotional pressure situation changes nothing – it remains a voluntary disposal. Only genuine compulsory transfers, such as expropriation, would fall outside Section 23 of the German Income Tax Act (EStG).
- The child living in the house does not preserve the exemption. Although allowing a child entitled to child benefit to use the property generally qualifies as owner-occupancy, in this case the divorced spouse also lived in the house, meaning there was harmful use by a third party: The ex-partner living permanently separately no longer belongs to the household for tax purposes and is treated as an unrelated third party.
In short: Anyone who moves out, lets their ex-partner use the house and transfers their share only afterward loses the tax exemption – even if their own children continue to live there.
How high is the speculation tax upon divorce?
Only the pro rata profit on the transferred co-ownership share is taxed, not the value of the entire house. The profit is calculated roughly as follows:
Pro rata disposal price − pro rata acquisition costs − pro rata ancillary costs = taxable profit
Example: A couple bought a house in 2018 for 400,000 euros (a half share of 200,000 euros each). In 2024, the partner who moved out transfers their half share to the ex-partner for 275,000 euros. The taxable profit is approximately 275,000 − 200,000 = 75,000 euros. With a personal tax rate of 42 percent, this would amount to around 31,500 euros in income tax – an amount that can jeopardize the entire division of assets.
Deductible are in addition to the original acquisition costs, also the ancillary purchase costs (notary, real estate transfer tax) and the selling costs. For properties rented out in the meantime, depreciation claimed additionally is added to the profit.
How to avoid the speculation tax in a divorce
The good news: With the right timing, the tax can be avoided in many cases. These options are available:
- Transfer before moving out or in the same year: If the transfer takes place while the partner still lives in the house, or no later than the year of moving out, the owner-occupation exemption applies – because in that case the year of sale plus the two preceding years were owner-occupied.
- Wait out the ten-year period: Anyone who transfers or sells the property only after ten years have elapsed since the purchase pays no speculation tax, regardless of how high the profit is.
- Transfer without consideration (gift): § 23 EStG requires a sale for consideration. If the share is gifted, no speculation tax arises. Caution: If the transfer is credited against the equalization of accrued gains, it is deemed partially for consideration and may nevertheless become taxable on a pro rata basis.
- Sell jointly to a third party: If both partners jointly sell the house to an unrelated buyer while at least one of them still occupies it, the tax burden can often be kept lower than with an internal transfer after moving out.
Because each of these arrangements depends on deadlines and formal requirements, you should never sign a divorce settlement agreement without tax advice. A brief appointment with a tax adviser is significantly less expensive than an unexpected subsequent tax payment.
Real estate transfer tax: Transfer to the (former) partner remains tax-free
At least one tax does not apply to transfers between partners: real estate transfer tax. Under § 3 GrEStG, both the acquisition by the spouse of the seller (No. 4) and the acquisition by the former spouse as part of the division of assets following the divorce (No. 5) are exempt from real estate transfer tax. The acquiring partner thus saves the 3.5 to 6.5 percent of the purchase price applicable depending on the federal state. However, the speculation tax under § 23 EStG remains unaffected – the two taxes must be strictly distinguished.
FAQ on speculation tax in a divorce
Does every divorce incur “Does the speculation tax apply?
No. It only applies if fewer than ten years lie between the purchase and transfer and the owner-occupation exemption does not apply. Anyone who has owned the property for more than ten years anyway or transfers it in time pays nothing.
Why do I lose the exemption if I move out?
Because the tax exemption requires use for your own residential purposes. This use ends when you move out. If you then allow your ex-partner to use the house, this is considered use by a third party for tax purposes.
Does it count as owner-occupation if my child continues living in the house?
Only if the home is used exclusively by a child entitled to child benefit. As soon as the divorced partner also lives in the house, the BFH denies owner-occupation—the child’s use is then no longer attributed to you.
Do I have to pay even though I was forced to sell?
Yes. The BFH has ruled that a transfer under pressure from an impending partition auction is also a voluntary disposal. The personal predicament does not exempt you from the tax.
How can I avoid the tax as safely as possible?
The safest options are to transfer the property before or in the year you move out, wait until the ten-year period has expired, or make a gratuitous transfer. Which option is suitable depends on your situation—have the matter reviewed for tax purposes in advance.
Is real estate transfer tax payable when transferring the property to my ex-partner?
No. Transfers between spouses and the division of assets following divorce are exempt from real estate transfer tax under § 3 GrEStG.
Conclusion: Timing determines the tax
Whether speculation tax is payable upon divorce is not a matter of chance, but of choosing the right time. The greatest risk arises when one partner moves out first and only later transfers their co-ownership share to their ex-partner within the ten-year period—in that case, the owner-occupation exemption is lost, and the proportional gain is taxed at the individual tax rate. Anyone who transfers the property in time, waits until the period has expired, or acts gratuitously, on the other hand, emerges from the separation tax-free. Therefore, clarify the tax consequences before moving out or signing a divorce settlement agreement—this keeps the separation at least financially predictable.