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Fiscal, 02/02/26

Previous donations and inheritance share the same calculation. What should you know?


 

In many inheritances, an unexpected surprise arises: a donation made years earlier is re-evaluated and included in the tax calculation. This isn't because the donation is taxed twice, but because inheritance tax records past donations. Planning an inheritance involves more than just distributing assets. It also means understanding how previous donations interact with the tax, especially when time is of the essence.

In inheritance proceedings, it's common to think that each transaction is taxed separately: first the donation, then years later the inheritance. However, the Inheritance and Gift Tax (ISD) introduces a specific rule that alters this perception and which should be carefully considered before accepting or planning a transfer of assets.

We are referring to the accumulation of donations to the inheritance, a tax rule that can significantly modify the final tax result.

 

  1. The four-year rule and its real scope

When a person has received donations from the same deceased person in the four years prior to death, these donations must be taken into account when calculating the Inheritance Tax corresponding to the inheritance.

This does not mean that the donated assets will be taxed again as such. What the rule does is use these donations to recalculate the average tax rate that will be applied to inherited assets.

The aim is clear: to prevent the transfer of assets from being taxed at lower rates than would be the case if everything had been received at once, by fragmenting the transfer between donations and inheritance.

  • Attention.  This is not an option or a decision of the heir: if the term does not exceed four years, accumulation is mandatory.

 

  1. How the calculation works when there are previous donations

The mechanism is not intuitive and often causes confusion. The procedure, in simplified terms, is as follows:

  • First, in theory, inherited assets and donated assets from the last four years are added together.
  • The corresponding reductions are applied to that total and the full tax amount is calculated.
  • Next, an average rate is obtained by dividing that fee by the theoretical taxable base.
  • That average rate is the one that is ultimately applied only to inherited assets.
  • Donations are not taxed again, but they do influence the percentage applied to the inheritance.

The most common mistake is thinking that the donation "no longer counts" because it was settled back then.

 

  1. Donations and inheritances don't always end up being more expensive together

Although it may seem contradictory, receiving a prior donation does not always worsen the final tax bill. In certain autonomous communities, donations between direct relatives benefit from reductions or more favorable rates than inheritances.

In these cases, although the donation is accumulated to calculate the average rate, the overall result may be lower than if everything had been received directly by inheritance.

However, this beneficial effect is not automatic or generalizable: it depends on the type of asset, the family relationship, and the applicable regional regulations.

  • Attention. Donating during your lifetime can be tax-advantageous, but only after doing the math, not based on intuition.

 

  1. When donating while alive is not a good idea

There are situations in which prior donation may be inefficient from a tax perspective. For example:

  • Assets that enjoy greater reductions in inheritance than in donation, such as the main residence.
  • Assets that have increased in value, since the donor may be required to pay income tax on the capital gain.
  • Donations made without taking into account the combined impact on future inheritance.

In these cases, a poorly planned donation can generate an additional tax cost that is not perceived until years later.

  • Attention. The tax impact is not limited to the Inheritance and Gift Tax: it can also affect the donor's Personal Income Tax.

 

  1. Do not confuse tax accumulation with civil collation

A common mistake is to conflate civil and tax concepts. Whether or not a donation is subject to collation under the Civil Code does not preclude its inclusion in Inheritance Tax.

Tax regulations have their own logic and their own objective: to preserve the progressivity of the tax. This has been repeatedly confirmed by the economic-administrative courts and recent case law.

Consequently, tax accumulation operates regardless of whether the donee is a forced heir or not.

  • Attention. Civil and tax rules do not always go hand in hand, even if they deal with the same thing.

 

  1. The importance of analyzing each case before deciding

The accumulation of donations is not a theoretical issue. It has real and, in some cases, very significant economic effects. Therefore, before making substantial donations or accepting an inheritance that includes previous donations, it is essential to analyze:

  • The time when the donations were made.
  • The type of assets transferred.
  • The applicable regional regulations.
  • The prior taxation already borne.

Only with a joint vision can it be determined whether the strategy followed has been adequate or whether it is advisable to anticipate possible regularizations.

Wealth decisions made without advice are usually reviewed when they can no longer be corrected.

We are at your disposal to review your specific situation and assess the real tax impact of previous donations and future inheritances, with the aim of avoiding unnecessary costs and planning with greater certainty.

 

You can contact this professional office for any questions or clarifications you may have.

Warm regards,

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