In short
Three articles of the Civil Code of 2020 answer the same question from different angles: what happens when both spouses’ money goes into one spouse’s good. Article 511 sets the general rule: privative goods do not lose that character because their acquisition is made with common funds, and in that case, at liquidation, the society may claim as a credit the value paid in the spouse’s favour for the good’s acquisition, convalidation or conservation. Note the three words: it covers not only the purchase but also convalidating and conserving the good. Article 516 adds two situations. The first is the half-and-half purchase: goods acquired by a price or consideration part ganancial and part privative belong pro indiviso to the sociedad de gananciales and to the spouse or spouses in proportion to the value of the respective contributions. No label has to be chosen; the good is apportioned. The second is the good bought beforehand: what a spouse acquired for themselves before the society took effect stays privative even if the remaining price is paid with common funds, and the society has a credit for what it contributed at liquidation. Article 518 carries the logic over to improvements. Buildings, plantings and any other improvements take the character of the goods they affect; but if the improvement made on privative goods is due to the investment of common funds or to either spouse’s activity, the society may recover the amount of the improvement or a proportional share in the increase in value, whichever is greater, at the time of the society’s dissolution or of the alienation of the improved good, discounting the remuneration the spouse received for work done in their personal capacity. The same rules apply to the patrimonial increase incorporated into a mercantile establishment or another privative firm.
What is it?
They are Articles 511, 516 and 518 of the Civil Code of 2020: what happens when common funds acquire, conserve or improve a privative good, or when both estates concur in one purchase.
Who can do it?
Married people under the sociedad de gananciales whose common estate has paid for, conserved or improved one spouse’s privative good.
Requirements
- Privative goods do not lose that character because their acquisition is made with common funds.Verified against the official source
- In that case, at liquidation, the society may claim as a credit the value paid for the good’s acquisition, convalidation or conservation.Verified against the official source
- Goods acquired by a price part ganancial and part privative belong pro indiviso to the society and the spouse in proportion to the contributions’ value.Verified against the official source
- What a spouse acquired for themselves before the society took effect stays privative even if the remaining price is paid with common funds.Verified against the official source
- Buildings, plantings and other improvements take the character of the goods they affect.Verified against the official source
- If the improvement on a privative good is due to common funds or a spouse’s activity, the society recovers the improvement’s amount or a proportional share in the value increase, whichever is greater.Verified against the official source
- That calculation is made at the time of the society’s dissolution or of the improved good’s alienation.Verified against the official source
- From those values must be discounted the remuneration a spouse received for work done in their personal capacity.Verified against the official source
Documents you need
Cost
Step by step
Step 1: The good’s character does not change
Article 511: privative does not stop being so because it was acquired with common funds.
Step 2: What arises is a credit
The society may claim the value paid to acquire, convalidate or conserve the good.
Step 3: If both estates paid, the good goes pro indiviso
Article 516: it belongs to the society and the spouse in proportion to the contributions’ value.
Step 4: What was bought before stays privative
Even if the remaining price is paid with common funds; the society has a credit for what it contributed.
Step 5: Improvements follow the good they affect
Article 518: buildings, plantings and other improvements take that good’s character.
Step 6: But the society collects the greater of two figures
The improvement’s amount or a proportional share in the value increase, whichever is greater.
Step 7: Discount what you were already paid for that work
From those values the remuneration received for work done in a personal capacity is discounted.
Where to do it
These three articles do not say who values the contributions, the improvement or the increase in value, by what method, or as of what date beyond naming the moment of dissolution or alienation. They do not explain how Article 516’s pro indiviso proportion is proved when no document records it. They fix no term to claim these credits: they tie them to liquidation, dissolution or alienation, without saying what happens if that moment never comes. They name no forum, form or procedure, and publish no tariff. None of those gaps is filled here.
How long it takes
What to do if something goes wrong
The idea to hold on to is simple and saves many misunderstandings: common money going into a privative good does not turn the good common, but neither is it lost. Article 511 says so head-on — privative goods do not lose that character because their acquisition is made with common funds — and immediately creates the remedy: the society may claim as a credit the value paid for the acquisition, convalidation or conservation. Those three words are worth noting, because many believe the credit covers only the purchase: it also covers conserving the good, that is, paying what was needed to keep it. The second situation is the purchase made from two pockets. Here the Code does not force a label: Article 516 apportions the good pro indiviso between the society and the spouse in proportion to the value of the respective contributions. And for the frequent case of the house bought before marrying and finished paying afterwards, the same article is clear: it stays privative, and what the common estate put in is collected as a credit at liquidation. The third is improvements, and there lies the rule that most favours the common estate and that almost nobody knows. If the improvement made on a privative good is due to the investment of common funds or to either spouse’s activity, the society may recover the amount of the improvement or a proportional share in the increase in the good’s value, whichever is greater. If the property appreciated a lot, the society is not tied to the cost of the works. That said, the article itself requires discounting the remuneration the spouse received for work done in their personal capacity, so it is not collected twice. And the same rules apply to the patrimonial increase incorporated into a mercantile establishment or another privative firm. None of this calculates itself: the money and the dates must be documented. MiPRFácil gives no legal or financial advice.
Common mistakes
- Believing that paying for a privative good with common funds turns it ganancial.
- Believing the opposite: that the common money is lost. It creates a credit for the society.
- Thinking the credit covers only the purchase: Article 511 names acquisition, convalidation and conservation.
- Choosing a single label when both estates paid: Article 516 apportions pro indiviso.
- Believing that finishing payment with common money on a house bought earlier turns it ganancial.
- Settling for the cost of the works when the property appreciated: whichever is greater is collected.
- Forgetting to discount the remuneration already received for work done in a personal capacity.
- Not documenting the money or the dates and reaching liquidation unable to prove the contribution.
Frequently asked questions
We paid with common money for a good that was theirs. Does it become both ours?
No. Article 511 keeps the privative character, but the society may claim the value paid as a credit at liquidation.
We bought with part my money and part common. Whose is it?
Article 516 makes it belong pro indiviso to the society and the spouse in proportion to the respective contributions’ value.
We made improvements to their privative house. What is recovered?
The amount of the improvement or a proportional share in the increase in the good’s value, whichever is greater.
When is that calculation made?
At the time of the society’s dissolution or of the improved good’s alienation, per Article 518.
Official sources
These are the government pages this guide is based on.
- Poder Judicial de Puerto Rico
Poder Judicial
bvirtualogp.pr.gov
Last verified
September 13, 2026
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