In short
Chapter V is short and handles four different situations with four different answers. Article 1801 opens generally: the partition may be invalidated by the same causes by which juridical business is invalidated. The article names none of those causes, it refers to the general regime, and so this guide does not list them either. Article 1802 resolves the case of someone who was not an heir: the partition made with an apparent heir is null in what relates to them, and the part applied to them is distributed among the coheirs. Partial nullity, not total; the rest of the split stands. Article 1803 resolves forgetting a thing: the omission of some good or some value of the inheritance in the partition gives rise to its being adjudicated among the called. No nullity; the forgotten good is simply adjudicated. Article 1804 resolves forgetting a person, and there everything changes: when a coheir is omitted in the partition through bad faith or dolo on the part of the interested parties, the injured party may request the nullity of the partition or that a rectification be made. Note the contrast. Forgetting a thing is fixed by adjudicating it. Omitting a person opens the door to knocking down the whole split, but only if there was bad faith or dolo. About a coheir omitted in good faith, by an honest mistake, the Code says nothing in this chapter, and that silence is not filled here. And Article 1805 sets the exit door: the actions provided in this chapter are not available if the coheir who would bring them has alienated all their participation or a considerable part of it. What a considerable part is, the article does not say: no fraction, no percentage, no test. None is invented here either.
What is it?
They are Articles 1801 to 1805 of the Civil Code of 2020: when an inheritance partition may be invalidated, what happens if it was divided with someone who was not an heir, if a good was forgotten or a coheir omitted, and who loses the right to claim.
Who can do it?
Any coheir injured by a partition already made, except one who has alienated all their participation or a considerable part of it.
Requirements
- The partition may be invalidated by the same causes by which juridical business is invalidated.Verified against the official source
- A partition made with an apparent heir is null in what relates to them, and their part is distributed among the coheirs.Verified against the official source
- The omission of a good or a value gives rise to its being adjudicated among the called.Verified against the official source
- The omission of a coheir through bad faith or dolo allows requesting the nullity of the partition or a rectification.Verified against the official source
- These actions are not available if the one bringing them alienated all their participation or a considerable part of it.Verified against the official source
Documents you need
Cost
Step by step
Step 1: The general rule
Article 1801: the partition may be invalidated by the same causes by which juridical business is invalidated. The article does not name them.
Step 2: If it was divided with someone who was not an heir
Article 1802: the partition is null in what relates to the apparent heir.
Step 3: And their part is shared out
The same article: the part applied to them is distributed among the coheirs. The rest of the split stands.
Step 4: If a good was forgotten
Article 1803: it is adjudicated among the called. There is no nullity for that.
Step 5: If a coheir was omitted
Article 1804: but only when the omission was through bad faith or dolo on the part of the interested parties.
Step 6: Then there are two roads
The injured party may request the nullity of the partition or that a rectification be made. The article does not say who chooses between them.
Step 7: About an honest mistake, nothing
Article 1804 conditions the remedy on bad faith or dolo and stops there. About a coheir omitted by honest mistake this chapter says nothing.
Step 8: Check whether you may still claim
Article 1805: the actions are not available if you alienated all your participation or a considerable part of it.
Step 9: And how much is considerable is not said
The article gives no fraction, percentage or test. None is proposed here.
Where to do it
Chapter V does not say before which forum these actions are brought, with what pleading, at what fee or within what deadline. Nor does it say what happens to a third party who bought from the apparent heir. You will not find any of that here, because the Code does not publish it in these five articles.
How long it takes
What to do if something goes wrong
Before fighting a partition, look at two things. The first is what exactly failed, because the Code answers differently by case. If the split counted someone who was not an heir, Article 1802 annuls the partition only in what concerns them and shares their part among the coheirs; the rest stands. If what happened is that an account, a parcel or a value was forgotten, Article 1803 annuls nothing: that good is adjudicated among the called and that is that. If the one left out was a person, Article 1804 does allow requesting nullity or a rectification, but it requires the omission to have been through bad faith or dolo on the part of the interested parties. The coheir omitted by an honest mistake does not appear in this chapter, and this guide invents no remedy for them. The second thing to check is whether you still have standing: Article 1805 closes these actions to anyone who already alienated all their participation or a considerable part of it. If you sold or assigned your hereditary share, that door may be shut. How much a considerable part is, the Code does not say, and no number is set here. Nor is there a deadline published in this chapter for any of these actions. MiPRFácil does not represent anyone in court and gives no legal advice.
Common mistakes
- Looking in Article 1801 for the list of causes of nullity: it refers to those of juridical business and names none.
- Believing dividing with an apparent heir annuls the whole partition: Article 1802 annuls it only as to them.
- Requesting nullity because a good was forgotten: Article 1803 only orders it adjudicated among the called.
- Requesting nullity for omitting a coheir without alleging bad faith or dolo: Article 1804 requires it.
- Assuming nullity is Article 1804’s only remedy: it also allows requesting a rectification.
- Taking for granted the coheir omitted in good faith has the same remedy: this chapter does not address it.
- Bringing these actions after selling the participation: Article 1805 closes them.
- Putting a percentage on Article 1805’s considerable part: the article gives none.
- Expecting this chapter to state the deadline or the forum: it publishes neither.
Frequently asked questions
May an inheritance partition be annulled?
Article 1801 says it may be invalidated by the same causes by which juridical business is invalidated, without naming them.
A good was forgotten in the split. Must it all be redone?
Not under Article 1803: the omission of a good or a value gives rise to its being adjudicated among the called.
I was left out of the partition. What may I request?
Article 1804 allows requesting the nullity of the partition or a rectification, when the omission was through bad faith or dolo on the part of the interested parties.
I already sold my share. May I still claim?
Article 1805 says these actions are not available if the coheir alienated all their participation or a considerable part of it, without defining how much is considerable.
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 11, 2026
MiPRFácil is an independent informational website and is not affiliated with, endorsed by, or operated by the Government of Puerto Rico or any government agency.
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Did you find out-of-date information?
If the will contradicts itself, the dividing clause wins; in a separate act, it loses
Article 1778 of the Civil Code of 2020 reverses the rule depending on where the partition was written: inside the will or in a separate act.
If a coheir is insolvent, even the victim pays part of their own indemnity
Article 1799 of the Civil Code of 2020 spreads the insolvent’s share among the rest, including the one who must be indemnified.
The apparent heir’s acts fall only if both he and the third party acted in bad faith
Article 1596 of the Civil Code of 2020 uses “and”, not “or”: bad faith on both sides is needed for an act of administration to fail.
You sell your quota without permission; a specific good needs every heir
Article 1604 of the Civil Code of 2020 separates the two, and 1605 gives co-heirs thirty days of tanteo if the buyer is a stranger.
Claiming an inheritance never lapses, but goods can still be lost to usucapión
Article 1593 of the Civil Code of 2020 says both in one line: the action is imprescriptible, without prejudice to the usucapión of particular goods.
Leaving a child out of the will does not void it: it re-divides the forced share
Article 1629 of the Civil Code of 2020 says preterition does not annul the institution of heir and entails dividing the legítima among all the forced heirs.