Unconscionable Interest Rates: When Courts Step In to Protect Borrowers

The Supreme Court has long held that while parties to a loan agreement may freely stipulate on interest rates, this freedom is not absolute. When interest rates become unconscionable, courts may step in and reduce them to protect borrowers from what the Court described as "repugnant spoliation and an iniquitous deprivation of property." The 2009 case of Spouses Castro v. Tan (G.R. No. 168940) illustrates this principle clearly.

The Facts of the Case

In February 1994, spouses Angelina and Ruben Tan obtained a loan of ₱30,000 from spouses Isagani and Diosdada Castro. They secured the loan with a real estate mortgage over their residential lot in Malolos, Bulacan. The agreement stipulated a 5% monthly interest rate, compounded monthly—amounting to 60% per annum.

The loan was payable within six months. When Ruben Tan died in September 1994, his widow Angelina was left with the obligation. She failed to pay upon maturity, and when she later offered to settle the principal plus partial interest, the Castros refused. Instead, they demanded ₱359,000—the total accumulated amount after the compounded interest had ballooned.

The Castros foreclosed on the property in February 1999, bought it at auction, and obtained a writ of possession. The Tans, joined by other respondents, filed a complaint challenging the mortgage and foreclosure, arguing the interest rate was unconscionable.

The Issue Before the Court

The central question was whether a stipulated interest rate of 5% per month, compounded monthly, could be declared void for being unconscionable—even though the borrowers had voluntarily agreed to it.

The Supreme Court's Ruling

The Court denied the Castros' petition and affirmed the reduction of the interest rate to the legal rate of 12% per annum. It also nullified the foreclosure proceedings and ordered the reconveyance of the property to the borrowers upon payment of the corrected debt.

Interest Rates Are Not Absolute

The Court acknowledged that the Usury Law ceiling had been suspended by Central Bank Circular No. 905 (effective January 1, 1983), giving parties wide latitude to agree on interest rates. However, it emphasized that this suspension does not grant lenders "carte blanche authority to raise interest rates to levels which will either enslave their borrowers or lead to a hemorrhaging of their assets."

Citing earlier cases, the Court noted that interest rates of 5.5% per month (66% per annum) in Medel v. Court of Appeals and 3% per month in Ruiz v. Court of Appeals were both declared excessive and reduced to 12% per annum. The 5% monthly rate in this case was even higher than the rate struck down in Ruiz.

Freedom of Contract Has Limits

The Court rejected the argument that parties should be bound by their voluntary agreement. While contracts have the force of law between parties, Article 1306 of the Civil Code allows stipulations only if they are "not contrary to law, morals, good customs, public order, or public policy." An unconscionable interest rate violates this requirement and is void from the beginning.

No Liquidated Damages Without Stipulation

The Court also deleted the trial court's award of 1% per month as liquidated damages. Under Article 2226 of the Civil Code, liquidated damages must be agreed upon by the parties. Since the Kasulatan contained no such stipulation, the award had no legal basis.

Foreclosure Nullified Due to Overstated Debt

Because the amount demanded was grossly inflated by the excessive interest, the Court nullified the foreclosure proceedings. Citing Heirs of Zoilo Espiritu v. Landrito, it held that when the outstanding loan amount is overstated, it cannot be said that the mortgagor failed to pay the correct obligation. The foreclosure sale and its registration were therefore invalid.

Practical Takeaways

• Unconscionable interest rates can be challenged. Borrowers are not helpless against excessive loan terms, even if they signed the agreement voluntarily.
• Courts will reduce excessive rates to 12% per annum. This is the standard legal interest rate applied when stipulated rates are struck down as unconscionable.
• Liquidated damages require express agreement. A lender cannot claim penalty charges unless the contract specifically provides for them.
• Foreclosure based on inflated debts may be void. If the amount demanded includes unconscionable interest, the foreclosure proceedings built on that amount can be nullified.
• Document everything. Keep records of payment offers and demands—these were crucial in showing the borrowers' willingness to pay the correct amount.

This article is general information and not legal advice. For your specific situation, consult a lawyer or ask ASG Legal AI.