What Happens if Interest Rates Rise After Refinancing?

If you refinanced into a fixed-rate loan, rising interest rates have absolutely no effect on your monthly repayment during your fixed-rate period. Your rate is locked in by contract — it doesn't matter if market rates climb by 1%, 2%, or more. You continue paying the same amount every month.

If you refinanced into a variable-rate loan, your repayments will typically increase when benchmark rates rise. Philippine banks usually adjust variable rates in line with movements in the BSP's policy rate or their own internal base rates. In this case, your monthly amortization could go up, sometimes by several thousand pesos depending on your loan balance.

The key takeaway: the type of rate you choose at refinancing determines your exposure to future rate increases. Most borrowers refinancing in the Philippines today opt for a fixed rate for at least the first 3–5 years to give themselves certainty and protection.

Yes — and this is one of the most powerful tools available to you when refinancing. Philippine banks offer fixed-rate periods as part of their home loan packages. When you refinance through a broker like Nook, you can compare fixed-rate options across multiple banks including BDO, BPI, Metrobank, Security Bank, RCBC, and others, and choose the loan that gives you the best rate for the longest fixed period that suits your needs.

By locking in today's rate — currently as low as 5.99% p.a. through Nook — you are completely insulated from rate increases for the duration of that fixed period. Even if the BSP raises rates significantly over the next few years, your repayment stays the same. This is exactly the kind of protection many homeowners are seeking right now.

Philippine banks typically offer fixed-rate periods of 1, 2, 3, 5, or 10 years, after which the loan usually reprices to the bank's prevailing rate at that time. Some banks offer longer fixed periods, but 3- and 5-year fixed terms are among the most common choices for borrowers seeking a balance between rate certainty and flexibility.

Here's how to think about it: the longer your fixed period, the more protection you have against rising rates — but longer fixed periods sometimes come with slightly higher initial rates. A 5-year fixed rate at 5.99% means your monthly repayment is completely predictable for five years, giving you time to build equity and plan your finances without worrying about rate movements. After the fixed period ends, you have the option to reprice with your current bank or refinance again to a competitive rate.

Fixed rate: Your interest rate stays the same for a set period (e.g., 3 or 5 years). Your monthly amortization is predictable and does not change regardless of what happens in the broader market. After the fixed period, the loan reprices — usually to the bank's prevailing rate at that time.

Variable rate (also called floating rate): Your interest rate moves up or down in line with market conditions or the bank's internal base rate. Your monthly repayment can increase or decrease over time. Variable rates are sometimes lower initially but carry the risk of rising if market conditions change.

For most Filipino homeowners refinancing today, a fixed rate offers better peace of mind — especially if you're already saving significantly compared to your current loan. Locking in a low fixed rate means you benefit from today's competitive rates without worrying about where rates go next.

This is one of the most common dilemmas — and it's worth thinking carefully about. Waiting for rates to drop further can be costly if rates don't drop (or even rise). Every month you delay refinancing while paying a high rate is money you don't get back.

Consider this: if you're currently on a 9% rate and can refinance to 5.99% today on a loan balance of 3,000,000, you're saving roughly 11,250 pesos per month in interest alone. Waiting six months hoping for a slightly lower rate means giving up around 67,500 pesos in potential savings — savings you can never recover.

The smarter approach for most homeowners is to refinance now and lock in a competitive fixed rate. If rates drop further in the future, you can always refinance again. Use our refinance break-even calculator to work out how quickly you recoup any refinancing costs and start saving.

This is actually the most likely scenario for most Filipino homeowners — and it's an important one to understand. Even if market rates rise after you refinance, you are still far better off than if you had never refinanced at all, as long as your fixed rate is still lower than your original loan rate.

For example: if you refinanced from 9% to a 5-year fixed rate of 5.99%, and market rates rise to 8% two years later — you are still paying 5.99%. You're saving compared to both your old loan and the current market rate. The refinance has protected you on two fronts: it locked in a lower rate than you had before, and it shielded you from the rising rate environment.

The risk only materialises meaningfully after your fixed period ends and you need to reprice or refinance again. By that point, you will have saved substantially — and you can reassess your options with a much clearer picture.

When your fixed-rate period ends, your loan will typically reprice to your bank's prevailing rate at that time. If market rates have risen significantly, this new rate could be higher than what you were paying during the fixed period. This is sometimes called the "reversion rate" or "repricing rate."

Here's what you can do to prepare:

• Reprice with your current bank: Most banks allow you to lock in a new fixed rate at the end of your current period. You simply negotiate a new rate with your bank — sometimes at a preferential rate for existing customers.
• Refinance to another bank: If your current bank's repricing rate isn't competitive, you can refinance again to a lender offering a better deal. This is exactly the kind of comparison Nook helps with — for free.
• Make extra repayments during the fixed period: By reducing your outstanding balance during the fixed period, you lower your exposure when the loan reprices. Use a prepayment calculator to see how extra payments can reduce your loan balance and future interest burden.

The important point: you are not locked in forever. You have options at every repricing milestone.

Yes — refinancing is not a one-time decision. Many savvy Filipino homeowners refinance multiple times over the life of their mortgage, taking advantage of competitive rates whenever they become available. There is no rule that says you must stay with a bank or a rate for the full loan term.

The main considerations when refinancing again are:

• Prepayment or early settlement fees: Some banks charge a fee if you pay off or refinance out of a loan before a certain period (often 1–3 years from the last repricing). Always check your loan terms before refinancing again.
• Processing costs: Refinancing involves some fees such as appraisal, notarial, and documentation charges. These are relatively modest in the Philippines compared to the potential savings, but factor them into your decision.
• Break-even period: Make sure the savings from refinancing outweigh the costs over a reasonable time horizon. The general rule of thumb: if you plan to stay in the property for at least 2–3 years and your new rate is at least 1–1.5 percentage points lower, refinancing is likely to be worthwhile.

The savings from refinancing to 5.99% p.a. can be substantial — and they remain real even if rates rise after you lock in. Here are some illustrative examples based on a 20-year loan term:

Loan balance: 2,000,000
At 9%: approx. 18,000 per month | At 5.99%: approx. 14,300 per month | Monthly saving: approx. 3,700 | Annual saving: approx. 44,400

Loan balance: 4,000,000
At 9%: approx. 36,000 per month | At 5.99%: approx. 28,600 per month | Monthly saving: approx. 7,400 | Annual saving: approx. 88,800

Loan balance: 6,000,000
At 9%: approx. 54,000 per month | At 5.99%: approx. 42,900 per month | Monthly saving: approx. 11,100 | Annual saving: approx. 133,200

Even if rates rise to 8% or 9% again in the market after you refinance, you keep paying 5.99% for the full duration of your fixed period. Use our home loan refinance calculator to get a personalised estimate based on your exact balance and current rate.

For most Filipino homeowners who are currently paying 7% or above, the answer is almost certainly yes — and here's why rate uncertainty actually supports the case for refinancing sooner rather than later.

Refinancing to a fixed rate is one of the few financial tools that lets you take rate risk off the table entirely for a defined period. If you're paying 8%, 9%, or 10% right now, every month you delay is a month of unnecessarily high interest payments. By refinancing to 5.99% on a fixed term, you:

• Immediately reduce your monthly repayments
• Lock in certainty against further rate increases during the fixed period
• Build equity faster because more of your repayment goes to principal
• Retain the flexibility to reassess when your fixed period ends

The only scenario where refinancing might not make sense is if you plan to sell the property very soon (within 1–2 years) and the upfront costs would not be recovered in time, or if your remaining loan balance is very small. For most homeowners with a balance above 1,500,000 and more than 5 years remaining, the numbers strongly favour acting now. Nook's service is 100% free to borrowers — so there's no cost to finding out exactly how much you could save.