If you're currently paying a home loan in the Philippines and haven't checked your interest rate lately, there's a good chance you're overpaying. Most Filipino homeowners are locked into rates between 7% and 10% — but the best refinance rate available through Nook today is 5.99% p.a. On a loan balance of 3,000,000, that difference can mean savings of over 5,000 pesos every single month. A refinance home loan calculator lets you plug in your current balance, remaining term, and existing rate to see exactly what you could save by switching banks in 2026.
This page answers the most common questions Filipinos ask before using a mortgage refinance calculator — from how the maths actually works, to what fees to watch out for, to which banks are offering the most competitive rates right now. Whether you're with BDO, BPI, Metrobank, or any other lender, the numbers below will help you decide if refinancing is worth it for your situation. You can also jump straight to Nook's home loan refinance savings calculator to get a personalised estimate in under two minutes.
A refinance calculator takes three core inputs — your current outstanding loan balance, your current interest rate, and your remaining loan term — and compares your existing monthly repayment against what you would pay at a new, lower rate. The difference between those two figures is your estimated monthly saving. It then multiplies that saving across your remaining loan term to show you the total interest you avoid paying over the life of the loan.
For example, if you have an outstanding balance of 3,000,000 with 20 years remaining at 8.5% p.a., your approximate monthly repayment is 26,035. At 5.99% p.a. over the same term, that drops to around 21,487. That's a monthly saving of roughly 4,548 — or over 1,091,520 in total interest avoided over 20 years. The calculator does this arithmetic instantly so you can see the impact before committing to anything.
Savings depend on three factors: your current rate, your outstanding balance, and your remaining term. The table below shows estimated monthly savings when switching from common existing rates to 5.99% p.a. on a 20-year remaining term:
- Balance 1,500,000 at 8% → 5.99%: save approx 1,700 per month
- Balance 3,000,000 at 8% → 5.99%: save approx 3,400 per month
- Balance 5,000,000 at 8% → 5.99%: save approx 5,670 per month
- Balance 3,000,000 at 9% → 5.99%: save approx 4,950 per month
- Balance 3,000,000 at 10% → 5.99%: save approx 6,480 per month
The higher your current rate and the larger your balance, the more dramatic the saving. Homeowners who took out loans three to five years ago and haven't repriced since are often paying rates of 8.5% or higher, making refinancing one of the highest-return financial moves available to them right now.
You should enter the rate you are currently being charged — not the rate you signed up for when you first took out the loan. These are often different, especially if your fixed-rate period has already expired and your loan has repriced to a floating or variable rate.
The easiest way to find your current rate is to check your most recent monthly statement or log into your bank's online portal. Your statement will typically show an annual interest rate or a base rate plus spread. If you can't find it, call your bank's mortgage hotline and ask for your current applicable interest rate. Many borrowers are surprised to discover they are on rates of 9% or even 10% after their initial lock-in period ended — sometimes without ever receiving a formal notification from their bank.
Use your current outstanding principal balance — that is, the amount you still owe on the loan today, not the original amount you borrowed. This figure appears on your monthly amortisation statement, usually labelled as "outstanding balance" or "remaining principal." It represents the actual amount that a new bank would be refinancing, so it's the correct input for an accurate savings calculation.
Do not use your original loan amount unless you are in the very first months of your loan. On a 3,000,000 loan taken out five years ago at 8.5% over 20 years, for instance, your outstanding balance today would be closer to 2,700,000. Using the wrong figure will overstate your potential savings.
Online calculators give you a reliable directional estimate — they are accurate enough to tell you whether refinancing makes financial sense and roughly how much you stand to save. However, they are simplified models based on standard amortisation maths and a few key inputs. Your actual saving may differ slightly for these reasons:
- Your new loan's exact rate may vary slightly depending on your loan-to-value ratio, credit profile, and the specific bank's offer at the time of application
- Some banks apply slightly different compounding conventions
- The calculator does not account for the time value of money or opportunity cost of closing costs
For a more precise figure tailored to your actual loan details, Nook's advisors can run a full comparison using live bank rate sheets. The calculator is the right starting point; a personalised assessment gives you the final answer.
Not for most borrowers — but it's the right question to ask. Refinancing in the Philippines does involve upfront costs, typically including appraisal fees, notarial fees, registration fees, mortgage redemption insurance, and in some cases a processing fee. These costs typically total between 1% and 2% of the loan amount. On a 3,000,000 balance, that's roughly 30,000 to 60,000 in one-time costs.
If your monthly saving is 3,000, you recover 30,000 in closing costs within 10 months. After that, every month is pure saving. Over a 20-year remaining term, even after paying 60,000 in costs, your net saving could still exceed 660,000. The key metric is your break-even period — the number of months before your cumulative savings exceed your upfront costs. For most borrowers with a meaningful rate difference, this is well under 18 months. See our full guide to home loan refinance closing costs in the Philippines for a detailed breakdown of each fee.
The break-even point is calculated by dividing your total upfront refinancing costs by your monthly saving. The formula is:
Break-Even Months = Total Closing Costs ÷ Monthly Saving
Example: If your closing costs are 45,000 and your monthly saving is 3,500, your break-even point is 45,000 ÷ 3,500 = approximately 13 months. This means that from month 14 onwards, you are ahead financially.
As a general rule, if your break-even point is under 24 months and you plan to stay in the property for at least that long, refinancing is almost always worth it. If your break-even is beyond 36 months, you should weigh it more carefully against your plans for the property. Nook's calculator includes a break-even estimate automatically so you don't have to do this arithmetic manually.
As of 2026, the most competitive home loan refinance rates in the Philippines are generally offered by BPI, Security Bank, BDO, Metrobank, RCBC, and Chinabank — though rates change frequently and the best offer for your situation depends on your loan amount, loan-to-value ratio, and the fixed-rate term you choose. Shorter fixed periods (1–3 years) typically carry lower headline rates, while longer fixed periods (5–10 years) offer more stability at a slightly higher rate.
The lowest available rate through Nook's panel of lenders is currently 5.99% p.a., which is significantly below what most borrowers are paying on existing loans. Rather than applying to each bank individually, Nook submits your details to multiple lenders simultaneously and presents you with the best offer. For a current snapshot of rates across all major banks, visit our Philippines bank loan interest rates 2026 comparison page.
Yes, you can refinance a Pag-IBIG home loan to a private bank — and for many borrowers it makes sense to explore this option, particularly if your Pag-IBIG rate has repriced upward or if you are no longer contributing to Pag-IBIG as an active member. Private banks can refinance your existing Pag-IBIG balance the same way they would refinance a loan from another bank.
The process involves the new bank paying off your outstanding Pag-IBIG balance in full and placing a new mortgage on your property. There may be a Pag-IBIG pre-termination fee to factor in, typically around 1% to 3% depending on how early in the loan term you are. You should include this in your total switching cost when calculating your break-even period. If your remaining Pag-IBIG balance is substantial and your current rate is above 6.5%, refinancing to a private bank at 5.99% is very likely to be financially beneficial.
The process has five broad steps: (1) calculate your potential savings using a refinance calculator; (2) gather your documents — typically your latest loan statement, title, tax declaration, proof of income, and government-issued ID; (3) submit your details to one or more banks for a formal loan offer; (4) compare offers and select the best rate and terms; (5) sign the new loan agreement and allow the new bank to settle your existing loan. The entire process typically takes four to eight weeks from application to full drawdown.
Nook simplifies steps two through five significantly. As a digital mortgage broker, Nook submits your single application to multiple banks simultaneously, handles the back-and-forth with lenders on your behalf, and presents you with the best offer — all at no cost to you. To understand what documents you'll need before you begin, see our guide to home loan refinance requirements in the Philippines. When you're ready, starting with the calculator takes less than two minutes.