Short answer. Yes. A prescribed debt survives as a natural obligation, and that can be guaranteed. Article 2052 says a guaranty may also guarantee a natural obligation, so even a debt that can no longer be sued upon because the collection period lapsed remains a proper subject of a guaranty.
What the law says
A guaranty cannot exist without a valid obligation. Nevertheless, a guaranty may be constituted to guarantee the performance of a voidable or an unenforceable contract. It may also guarantee a natural obligation.
Civil Code, Article 2052 — Guaranty Needs a Valid Obligation. Read the full provision →
Prescription bars the remedy, not the debt itself
When a debt prescribes, what the creditor loses is the ability to compel payment through the courts; the underlying debt does not simply vanish. In Philippine law such a debt lives on as a natural obligation — one that is not civilly enforceable but is still grounded in justice and conscience. That distinction is what your question turns on. A prescribed debt is not a non-existent debt. It is a real obligation that the law will no longer force the debtor to pay, but which he still owes in a moral and legal-but-unenforceable sense. That surviving obligation is what a guaranty can attach to.
The article expressly allows guaranteeing it
Article 2052 begins with the rule that a guaranty cannot exist without a valid obligation, then broadens what counts. After allowing a guaranty over a voidable or unenforceable contract, it adds plainly: it may also guarantee a natural obligation. Because a prescribed debt is a classic natural obligation, it falls squarely within this clause. So the answer to whether someone can guarantee a debt that can no longer be collected in court because it prescribed is yes — the Code deliberately extends the reach of guaranty to obligations that are no longer civilly demandable on their own.
What the guarantor is really agreeing to
This has real consequences for the person giving the guaranty. By guaranteeing a prescribed debt, the guarantor voluntarily assumes responsibility for an obligation the creditor could not otherwise enforce against the original debtor. He steps in with knowledge that the principal debt had lost its enforceability, and the law lets his undertaking give the creditor a route to payment that prescription had closed. That is a serious commitment: the shield of prescription that protected the debtor does not automatically protect a guarantor who has expressly bound himself to answer for the natural obligation.
The boundaries to keep in mind
A few limits still matter. There must genuinely be a natural obligation behind the guaranty — a debt that was once valid and merely lost its enforceability, not one that never existed. The guarantor's liability is also defined by the terms of what he actually agreed to secure, so the scope of his exposure depends on his own undertaking. And guaranteeing a natural obligation is a matter of the guarantor's free and informed choice; the law does not force it on anyone. Within those bounds, however, Article 2052 makes clear that a prescribed, uncollectible debt can indeed be guaranteed.
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.
- Willex Plastic vs. Court of Appeals, et al, G.R. No. 103066, April 25, 1996 — read the decision on LawPhil →