Short answer. Legal subrogation happens by operation of law and is not presumed; it applies only in the situations the Civil Code expressly names. Conventional subrogation is the kind the parties agree to themselves, and it must be clearly established for it to take effect.
What the law says
Subrogation of a third person in the rights of the creditor is either legal or conventional. The former is not presumed, except in cases expressly mentioned in this Code; the latter must be clearly established in order that it may take effect.
Civil Code, Article 1300 — Legal and Conventional Subrogation. Read the full provision →
Two kinds, one underlying idea
Subrogation is when a third person steps into the rights of a creditor. The Civil Code recognizes two ways this can happen: it is either legal, arising by operation of law, or conventional, arising because the parties agreed to it. Both result in the same basic outcome, a third person taking over the creditor's rights, but they come about through very different routes, and the law treats each with a different starting presumption.
Legal subrogation is the exception, not the default
The law is explicit that legal subrogation is not presumed, except in cases expressly mentioned in this Code. That means a person cannot simply assume they have been legally subrogated into a creditor's rights just because they paid a debt or otherwise assisted; it only happens where the Code specifically says it does. Outside those named situations, no legal subrogation arises automatically.
Conventional subrogation demands clear proof
Conventional subrogation depends on agreement rather than a rule of law, but the Code does not let it be inferred loosely either: it must be clearly established in order that it may take effect. A vague or ambiguous arrangement is not enough. The party claiming to have been subrogated by agreement needs to show the agreement actually and clearly provided for it, not merely that money changed hands or a debt was somehow paid off by someone else.
Why the distinction matters practically
Because neither form of subrogation is casually assumed, a person who believes they now hold a creditor's rights, whether because a specific legal situation applies to them or because of an arrangement they entered into, needs to be able to point to exactly what makes that true: the specific provision of the Code for legal subrogation, or clear evidence of the agreement for conventional subrogation. Without that, the claim to have stepped into the creditor's shoes is not established.
Cases citing this provision
These Supreme Court decisions cite the provision above. We list them so you can read them yourself; the summaries of what each decided are not ours to give.
- Philippine Fisheries Development Authority vs. Mario Daniel Eduardo G. Pascual, G.R. No. 265567, July 7, 2025 — read the decision on LawPhil →
- Edgar Ledonio vs. Capitol Devt. Corp, G.R. No. 149040, July 4, 2007 — read the decision on LawPhil →
- Elsa B. Reyes vs. Court of Appeals, et al, G.R. No. 120817, November 4, 1996 — read the decision on LawPhil →