Understanding Home Loan Interest Rate Types in the Philippines

When refinancing your home loan in the Philippines, one of the most important decisions you'll make is choosing between different interest rate structures. The wrong choice can cost you hundreds of thousands of pesos over the life of your loan — while the right one could save you just as much. This guide breaks down every interest rate type available to Filipino homeowners, with real numbers and practical examples to help you decide.

The Two Broad Categories: Fixed vs Variable Rates

All home loan interest rates in the Philippines fall into one of two broad categories: fixed rates and variable (or floating) rates. Most loans actually combine both — starting with a fixed period and then converting to a variable rate. Understanding how each works is the foundation of making a smart refinancing decision.

Fixed Interest Rates

A fixed interest rate stays the same for a defined period — typically 1, 2, 3, 5, or 10 years. During this time, your monthly amortization does not change regardless of what happens to market interest rates. This gives you predictability and protection against rate hikes.

For example, if you refinance a 3,000,000 peso loan at a fixed rate of 5.99% per annum for a 20-year term, your monthly payment would be approximately 21,481 pesos. That amount stays locked in for the entire fixed period — whether the Bangko Sentral ng Pilipinas (BSP) raises or cuts rates.

Fixed rates are ideal if you:

Variable (Floating) Interest Rates

A variable rate moves with a benchmark — typically the bank's own base lending rate, which is influenced by BSP policy rates and money market conditions. In the Philippines, most banks re-price variable-rate loans annually.

Variable rates often start lower than fixed rates, which is appealing. But after a rate increase cycle, they can climb well above what you initially paid. A borrower who took a variable rate at 6.5% in 2020 might have seen their rate adjust to 8.5% or higher by 2023 as BSP tightened monetary policy.

The Most Common Structure: Fixed-Then-Variable (Re-Pricing Loans)

In the Philippines, nearly all bank home loans follow a re-pricing structure. You lock in a fixed rate for an initial period, then the loan re-prices to a variable rate for the remainder of the term. Here's how typical re-pricing periods look across major banks:

After the fixed period ends, the re-priced rate is typically set at the bank's prevailing rate at that time — which could be significantly higher or lower than your original rate. This is exactly why many borrowers choose to refinance their housing loan before their re-pricing date arrives: it's an opportunity to lock in a new competitive rate and restart the clock.

How Banks Calculate Interest in the Philippines

Diminishing Balance Method

All Philippine home loans use the diminishing balance method (also called the reducing balance method). Interest is calculated only on the outstanding principal, which decreases with each payment. This is the fairest and most transparent method for long-term loans.

Here's a simplified example for a 2,000,000 peso loan at 6.5% p.a. for 20 years:

This pattern continues — as your balance drops, more of each payment goes to principal and less to interest. In the early years of a loan, the vast majority of your payment is interest. This is why refinancing early in your loan term delivers the biggest savings.

Add-On Rate (What to Watch Out For)

A small number of lenders — particularly informal ones or some in-house financing from developers — still use the add-on rate method, where interest is calculated on the original loan amount for the entire term, not the reducing balance. This results in a much higher effective cost. An add-on rate of 6% is not equivalent to a 6% diminishing balance rate — the effective annual rate can be nearly double. Always confirm which method a lender uses before signing.

Effective Interest Rate (EIR) vs Nominal Rate

Banks in the Philippines are required to disclose the Effective Interest Rate (EIR) under BSP regulations. The EIR captures the true cost of your loan by factoring in fees, charges, and the compounding frequency — not just the advertised nominal rate.

For example, a loan advertised at 5.99% per annum might have an EIR of 6.3% to 6.8% once processing fees, notarial fees, and insurance premiums are included. Always compare EIRs across banks — not just headline rates — to get an accurate picture of what you're actually paying.

Pag-IBIG vs Bank Interest Rate Structures

Pag-IBIG (HDMF) home loans follow a different structure. Your rate is tied to the Pag-IBIG Savings Rate and re-prices every 3, 5, 10, 15, 20, or 30 years depending on which fixing period you chose. Pag-IBIG rates have historically been competitive for lower loan amounts, but for larger loans — particularly above 1,500,000 pesos — private bank rates can often be significantly lower.

Many borrowers who originally took out Pag-IBIG loans find that refinancing from Pag-IBIG to a private bank after their fixing period ends can deliver substantial savings, especially if their outstanding balance has grown due to re-pricing or if they now qualify for better bank rates.

Comparing Interest Rate Scenarios: A Real Example

Let's look at a concrete comparison for a homeowner with an outstanding loan balance of 4,000,000 pesos and 18 years remaining on their term.

Even after accounting for typical refinancing costs (appraisal, documentation, processing fees — often totaling between 30,000 and 80,000 pesos), the net savings are substantial. This is the core value proposition of refinancing at the right time.

How to Choose the Right Rate Type for Your Situation

Choose a Longer Fixed Period If...

Choose a Shorter Fixed Period If...

Consider Your Loan Amount

For larger loans — say, 6,000,000 pesos and above — even a 0.5% difference in interest rate translates to meaningful monthly savings. At that scale, locking in the best available fixed rate becomes even more valuable. For smaller balances, the math still works but the absolute peso savings are more modest.

What Happens When Your Fixed Period Ends?

This is a moment many borrowers miss. When your fixed period ends, your bank will notify you of your new re-priced rate. In many cases, this re-priced rate is significantly higher than what you've been paying — and you may not realize you have options.

Your options at re-pricing are:

The re-pricing date is, in many ways, the ideal time to refinance. You avoid any early termination penalties (which typically apply only within the fixed period) and you can shop the market freely for the best available rate.

Tips for Getting the Best Rate When Refinancing

The best refinance rate currently available through Nook is 5.99% per annum — significantly lower than the 7% to 10% many Filipino homeowners are currently paying. Nook's service is completely free to borrowers; the broker fee is paid by the bank.