Supreme Court Rejects Automatic 3% Depreciation: Lower Income Tax When Selling Rental Property
For years, many self-employed people and small landlords paid personal income tax on artificially inflated capital gains when selling rental property. The reason was an administrative approach that reduced the property’s acquisition value by assumed depreciation, even where the taxpayer had never actually claimed those deductions.
A recent Supreme Court ruling changes that approach. The 3% annual depreciation rate routinely applied by the Tax Agency is not always mandatory. Lower rates may be used where they reasonably reflect the property’s actual depreciation, potentially reducing the tax due on sale.
1. The problem: tax on a gain that did not exist
The dispute concerns how to calculate a property’s acquisition value when it is sold. Personal income tax rules require that value to be reduced by depreciation under the terms set by regulation. The Tax Agency interpreted this to mean that taxpayers had to subtract the amount that could have been deducted for tax purposes, even if they had not actually claimed it.
- Even if a landlord claimed no depreciation during the rental years,
- the Agency still subtracted 3% per year from the property’s value,
- lowering its acquisition value,
- and automatically increasing the taxable capital gain and tax due.
The result was tax on assumed depreciation rather than actual depreciation, sometimes without the taxpayer even knowing that this adjustment would be made.
2. A rule followed out of fear, not legal certainty
This approach affected taxpayers without specialist advice and many tax professionals. The 3% rate was routinely applied when rental properties were sold largely because of the fear of reassessment and penalties.
Documenting depreciation year by year over 10, 15 or even 20 years was difficult. Combined with professional liability concerns, that pressure turned the administrative approach into an unwritten rule followed out of defensive caution rather than clear legal authority.
Electronic records and large-scale data matching made the risk more immediate: if the taxpayer had claimed less than the Tax Agency considered deductible, an adjustment could follow almost automatically.
3. What the Supreme Court actually decided
The judgment does not strike down the regulation or declare the whole system unlawful. It sets an important limit: the Tax Agency cannot automatically impose 3% depreciation when that rate does not reflect the property’s real loss in value.
In the case before it, the taxpayer used a lower rate based on coefficients similar to those used for corporate income tax. The Court accepted this method and left room to apply the lowest permissible coefficient where it fits the statutory concept of minimum depreciation.
For buildings, the practical minimum may be around 1.4–1.5% per year, substantially below the 3% rate previously applied.
4. The financial effect: modest each year, material at sale
The annual difference may not be large. Applying 3% instead of a lower rate might change the calculation by around €1,000 or €2,000 a year at most. The cumulative effect matters: after 10 or 15 years of renting, total depreciation can differ by tens of thousands of euros.
- A higher acquisition value,
- a lower capital gain, and
- potentially several thousand euros less in personal income tax on the sale.
For many small landlords and self-employed property owners, that difference is significant.
5. Who is most affected?
The effect varies by type of rental:
- Rental activity carried on as a business with an organised structure and staff: depreciation is generally calculated correctly already, so the effect may be limited.
- Rental income from property earned by individuals: this is the core issue. It concerns homes and commercial premises rented out by private owners, including many self-employed people, without a business operation, who may face a substantial tax bill when they sell.
This is therefore a matter for ordinary taxpayers, not only exceptional cases.
6. Can past sales be reviewed?
The ruling does not mean automatic refunds or a general reopening of past tax years. It may support a review of recent transactions, subject to important limits:
- The claim must fall within the four-year limitation period.
- The potential tax saving should justify the cost and effort of pursuing the case.
- A technical review should be carried out first.
In many cases, the ruling’s greatest impact will be forward-looking, in upcoming tax returns and property sales from now on.
Conclusion
The Supreme Court has corrected an approach that led taxpayers to pay tax on fictitious capital gains for years. Its message is clear: a 3% depreciation deduction cannot simply be assumed in every case. Taxpayers may be able to justify a lower rate when it better reflects the property’s actual depreciation.
For small landlords and self-employed owners, the issue is not only paying less tax; it is aligning taxation with the real gain rather than an automatic assumption.
I had a really urgent problem in the middle of the summer that I needed to get fixed. I tried contacting a bunch of agencies but they were either unavailable, slow, had terrible service or were crazy expensive (one company quoted me 1000€!). Josep replied to me within 10 minutes and managed to submit my forms on the deadline and all for a great price. He saved my life - 100% recommend!