In short
The parties may agree contractual clauses intended to avoid partial non-performance or delay in performing the principal obligation, and those clauses may consist in the payment of a certain sum, the loss of the benefit of the term, or any other penalty. The Code protects what was agreed and limits the judge carefully: although the court has the power to temper the penalties in cases of extreme economic disproportion between the penalty and the performance, it must recognize the binding force of the agreed clauses, and only in such cases may it substitute or moderate them. Four rules govern the application of the penalty clause: payment of the agreed penalty corresponds exclusively to non-performance or delay; the creditor may choose to demand full performance or payment of the penalty, and may join both remedies in the case of late performance; the penalty clause is interpreted restrictively; and the performance owed may only be substituted by the one agreed in the penalty clause if this was expressly agreed. Besides, the parties may agree other clauses related to the advance calculation of the damage caused by non-performance; in that case the creditor is not obliged to prove the damage, nor may the debtor be excused by showing the damage did not occur or was smaller. Both kinds may be agreed together, provided this appears clearly in the contract.
What is it?
It is Article 1257 of the Civil Code of 2020, within the section on guarantee clauses in the chapter on the effects of the contract. It governs the penalty agreed for breaching or being late, and the clause that fixes the damage in advance.
Who can do it?
The parties to any contract who agreed a penalty for partial non-performance or delay of the principal obligation, or a clause pre-calculating the damage.
Requirements
- That the clause be intended to avoid partial non-performance or delay in performing the principal obligation.Verified against the official source
- That there be non-performance or delay: payment of the agreed penalty corresponds exclusively to that.Verified against the official source
- To substitute the performance owed with the one in the penalty clause, that it was expressly agreed.Verified against the official source
- To agree the penalty clause and the pre-calculated-damage clause together, that this appear clearly in the contract.Verified against the official source
Documents you need
Cost
Step by step
Step 1: What the penalty may be
Article 1257 does not limit it to money: the clauses so agreed may consist in the payment of a certain sum, the loss of the benefit of the term, or any other penalty. Losing the benefit of the term — that is, the whole debt falling due at once — is as valid a penalty as an amount.
Step 2: The judge must respect it, with one way out
The article drafts the judicial power restrictively: although the court has the power to temper the penalties in cases of extreme economic disproportion between the penalty and the performance, it must recognize the binding force of the agreed clauses and only in such cases may it substitute or moderate them. The rule is to respect what was agreed; the exception is extreme disproportion.
Step 3: How much disproportion is needed: it does not say
The article gives no percentage and no multiple for measuring extreme economic disproportion, and this guide invents none. What it does make clear is that the penalty seeming high is not enough: it must be extremely disproportionate to the performance.
Step 4: The penalty only covers breaching or being late
Rule (a) bounds it: payment of the agreed penalty corresponds exclusively to non-performance or delay. It does not cover other things that went wrong in the contract.
Step 5: Either performance or the penalty, unless it was late
Rule (b) gives the choice and one joinder: the creditor may choose to demand full performance or payment of the penalty, and may join both remedies in the case of late performance. If the other performed but late, both the performance and the penalty may be demanded.
Step 6: It is read strictly and does not substitute by itself
Rule (c) requires the penalty clause to be interpreted restrictively: if the text does not say it, it does not extend. And rule (d) closes a frequent abuse: the performance owed may only be substituted by the one agreed in the penalty clause if this was expressly agreed. Paying the penalty does not release from performing, unless that was agreed.
Step 7: The other clause: fixing the damage in advance
The last paragraph opens a different figure: besides penalty clauses, the parties may agree others related to the advance calculation of the damage caused by non-performance. Its effect is double and symmetrical: the creditor is not obliged to prove the damage, nor may the debtor be excused by showing the damage did not occur or was smaller.
Step 8: Both may be agreed, if it is clear
The same paragraph allows it with a formal condition: penalty clauses and clauses that pre-calculate damage may be agreed together, provided this appears clearly in the contract. If it does not appear clearly, they are not combined.
Where to do it
The penalty is claimed from the other party; if it must be disputed or tempered, the Court of First Instance decides. The Code names no agency here.
How long it takes
What to do if something goes wrong
If what you handed over was a thing as the price of backing out, that is earnest money and not a penalty clause: the arras guide explains the difference. If what you want is to end the contract, that is the guide on extrajudicial rescission. If your contract is a consumer or telecommunications one, special statutes limit or forbid certain penalties and this article does not replace them; we did not read them here. This guide gives no threshold for extreme economic disproportion because the article gives none. The Code publishes no fee and no term for this article. MiPRFácil does not represent anyone in court and gives no legal advice.
Common mistakes
- Assuming the judge will reduce the penalty: they must recognize what was agreed absent extreme economic disproportion.
- Looking in the article for a percentage measuring that disproportion: it carries none.
- Charging the penalty for something that is neither non-performance nor delay.
- Demanding both performance and the penalty where performance was not late.
- Stretching the clause to cases it does not mention: it is interpreted restrictively.
- Paying the penalty believing performance is no longer owed: the substitution must have been expressly agreed.
- As debtor, trying to escape by proving the damage was smaller where the clause pre-calculates the damage.
- Combining a penalty clause and a pre-calculated-damage clause without it appearing clearly in the contract.
Frequently asked questions
Can the court reduce the contract’s penalty?
Only in cases of extreme economic disproportion between the penalty and the performance. Outside those cases it must recognize the binding force of the agreed clause. The article does not say how much disproportion is needed.
Can I demand the penalty and performance as well?
You may choose one or the other, and join both remedies in the case of late performance. Rule (b) of Article 1257 says so.
If I pay the penalty, do I no longer have to perform?
Only if it was expressly agreed. Rule (d) says the performance owed may only be substituted by the one agreed in the penalty clause if this was expressly agreed.
Must the damage be proven to collect?
If the clause pre-calculates the damage, no: the creditor is not obliged to prove the damage, and the debtor may not be excused by showing it did not occur or was smaller.
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 8, 2026
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