Pag-IBIG Housing Loan Calculator Philippines 2026: Estimate Your Monthly Payment

If you're planning to buy a home through Pag-IBIG (HDMF) or you already have an existing Pag-IBIG housing loan, understanding how your monthly amortization is computed is one of the most important steps you can take as a borrower. This guide walks you through how the Pag-IBIG housing loan calculator works, what factors affect your monthly payment, and how to decide whether your current loan is still giving you the best deal available in 2026.

Note: Interest rates shown in this article are approximate figures based on publicly available Pag-IBIG (HDMF) information and are subject to change without notice. Always verify the latest rates directly with Pag-IBIG or a licensed broker before making financial decisions.

How the Pag-IBIG Housing Loan Calculator Works

A housing loan calculator uses three inputs to estimate your monthly amortization: the loan amount, the interest rate, and the loan term. The formula behind it is the standard amortization formula used by banks and government lending institutions worldwide:

Monthly Payment = P × [r(1+r)^n] / [(1+r)^n – 1]

Where P is the principal loan amount, r is the monthly interest rate (annual rate divided by 12), and n is the total number of monthly payments (years × 12).

Let's make this concrete with a real example. Suppose you borrow 2,500,000 pesos from Pag-IBIG at an interest rate of approximately 6.375% per annum (a common rate tier for 10-year fixed repricing as of recent Pag-IBIG schedules) over a 20-year term:

Change the rate to 8% and the same loan would cost you approximately 20,926 pesos per month — a difference of over 2,400 pesos every single month, or nearly 29,000 pesos per year.

Pag-IBIG Housing Loan Interest Rates in 2026

Pag-IBIG offers tiered interest rates depending on the repricing period you choose. Shorter repricing periods generally carry lower initial rates, while longer repricing periods offer more stability. Based on publicly available HDMF rate schedules, approximate rates are as follows:

These rates are approximate and subject to change. Always confirm the current rate schedule directly with Pag-IBIG before submitting a loan application.

How Much Can You Borrow from Pag-IBIG?

As of 2024, Pag-IBIG Fund raised its maximum housing loan amount to 6,500,000 pesos. To qualify for the maximum loan amount, borrowers generally need to meet income and contribution requirements set by HDMF. The actual loanable amount depends on:

For example, if your gross monthly income is 80,000 pesos, Pag-IBIG will generally cap your monthly amortization at around 28,000 pesos. Working backwards from that figure at a 6.375% rate over 20 years, the maximum loan you could qualify for would be approximately 3,800,000 pesos.

Sample Monthly Amortization Table

Here is a quick reference table showing estimated monthly payments at approximately 6.375% per annum over common loan terms. These figures assume a fixed rate throughout the entire term for illustration purposes.

Keep in mind that in reality, your Pag-IBIG loan is subject to repricing at the end of each fixed-rate period. When the rate reprices, your monthly amortization will be recalculated based on the prevailing rate at that time, which could be higher or lower than your original rate.

What Repricing Means for Your Monthly Budget

One of the most misunderstood aspects of Pag-IBIG loans — and Philippine home loans in general — is the concept of repricing. When you take a loan with a 3-year fixed period, your interest rate is locked in for only 3 years. After that, Pag-IBIG will reprice your loan based on market conditions.

Let's say you borrowed 3,000,000 pesos at 6.375% for 3 years. After 3 years, suppose the prevailing rate has moved up to 8.5%. Your remaining balance is now approximately 2,780,000 pesos, and your new monthly amortization over the remaining 17 years would be approximately 25,800 pesos — up from roughly 22,200 pesos. That's an increase of over 3,600 pesos per month.

This is exactly why many Filipino homeowners begin exploring refinancing options when their Pag-IBIG loan is due for repricing. If the new Pag-IBIG rate is higher than what a partner bank through Nook can offer, refinancing to a bank loan may save you a significant amount over the remaining term of your loan. You can read more about this decision in our complete Pag-IBIG refinancing vs bank loan comparison guide.

Pag-IBIG vs Bank Loans: A Rate Comparison

Many borrowers assume Pag-IBIG is always the cheapest option. That's not always true — especially after your initial fixed-rate period ends.

When Nook's partner banks are offering 5.99% per annum, it's worth doing the math. On a loan of 3,000,000 pesos over 20 years, the difference between 7.5% and 5.99% is approximately 2,800 pesos per month — or more than 670,000 pesos in total interest savings over the life of the loan.

Unlike Pag-IBIG, which reprice at regular intervals, Nook helps you lock in a competitive fixed rate from a partner bank and handles the entire process for free. There are no broker fees charged to you.

How to Use a Pag-IBIG Housing Loan Calculator Effectively

Getting the most out of any housing loan calculator requires more than just plugging in numbers. Here are practical tips:

Beyond the Calculator: When to Consider Refinancing

If you currently have a Pag-IBIG housing loan, your loan calculator is a tool for spotting savings opportunities — not just for new loan planning. You should seriously consider running a refinancing calculation if:

Nook's free service connects you with the Philippines' top partner banks who are currently offering rates as low as 5.99% per annum. Nook handles the paperwork, comparison shopping, and bank negotiations on your behalf — at zero cost to you as a borrower.

If you're already researching your options, a good starting point is to estimate your monthly payments using Nook's Pag-IBIG housing loan calculator and see what your current loan is actually costing you versus what's available today.

Key Takeaways