Short answer. Yes, from the time you judicially demand it. Article 2212 provides that interest due shall earn legal interest from the time it is judicially demanded, even if the loan agreement is silent on the point. Filing your case is what starts that additional interest running on the unpaid interest itself.
What the law says
Interest due shall earn legal interest from the time it is judicially demanded, although the obligation may be silent upon this point.
Civil Code, Article 2212 — Compounding of Interest. Read the full provision →
Unpaid interest can itself start earning interest
Article 2212 addresses exactly the situation where interest itself has gone unpaid for a long time. Interest due shall earn legal interest from the time it is judicially demanded, although the obligation may be silent upon this point. The interest that has already accrued on your loan, once it becomes overdue, is treated as its own sum capable of earning further interest — but only starting from the moment you make a judicial demand for it, not automatically from whenever it first became due.
Silence in your loan agreement does not block this
A borrower might argue that because the loan contract never mentioned interest earning further interest, none should apply. Article 2212 rejects that argument directly: the rule applies although the obligation may be silent upon this point. You do not need a clause in your agreement authorizing interest on interest for this to take effect — the Civil Code supplies the rule regardless of what the contract does or does not say.
Judicial demand, specifically, is the trigger
The starting point the article specifies is judicial demand — filing the court case itself — not an earlier extrajudicial demand letter, and not the date the interest first accrued or became overdue. This is a narrower trigger than some other provisions in the Code use, so the timing of when you actually filed your case, rather than when you first asked the debtor to pay, is what determines when interest on the overdue interest begins to run.
What this means for your claim
If years of accrued interest remain unpaid, filing your court case does more than seek payment of the principal and that overdue interest — it also starts a separate clock under which the overdue interest itself begins earning legal interest going forward. This can meaningfully increase the total recovery the longer the case takes to resolve, since the additional interest runs from the filing date rather than only being calculated once judgment is finally rendered.
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.
- Lara’s Gifts & Decors, Inc. vs. Midtown Industrial Sales, Inc, G.R. No. 225433, August 28, 2019 — read the decision on LawPhil →
- Tarcisio S. Calilung vs. Paramount Insurance Corporation, et al, G.R. No. 195641, July 11, 2016 — read the decision on LawPhil →
- Jesus T. David vs. Court of Appeals & Honorable Edgardo Cruz, etc., et al, G.R. No. 115821, October 13, 1999 — read the decision on LawPhil →
- Daniel T. So , Substituted By His Heirs, Namely: Jesusa H. So; Danalaine H. So; and Darrien Derrick H. So vs. Food Fest Land, Inc, G.R. No. 261784, April 2, 2025 — read the decision on LawPhil →