Refinancing a Home Loan with Multiple Co-borrowers in the Philippines

Refinancing a jointly held home loan is one of the more complex mortgage transactions in the Philippines — but it is absolutely doable, and the potential savings are significant. Whether you originally took out the loan with a spouse, a sibling, or a parent, the rules around co-borrowers affect everything from documentary requirements to bank approval timelines.

This guide walks you through exactly how to navigate the process, what banks look for, and how to avoid the most common mistakes that delay or derail joint refinancing applications.

Why Co-borrower Refinancing Is More Complicated

When a home loan has multiple borrowers, every single borrower on the original loan has a legal and financial stake in the property and the debt. Banks treat all co-borrowers as equally liable — which means a new lender needs to underwrite all of them, not just the primary borrower.

This creates a few layers of complexity that a solo refinancing application simply does not have:

Can You Remove a Co-borrower During Refinancing?

Yes — refinancing is actually one of the most practical opportunities to remove a co-borrower from a home loan. This is common in situations where co-borrowers have separated, where one sibling wants to exit a jointly purchased property, or where a parent co-borrower has retired and no longer has the income to qualify.

To remove a co-borrower during refinancing, the remaining borrower or borrowers must demonstrate sufficient income to qualify for the new loan on their own. Banks use a debt-to-income ratio threshold — typically your total monthly obligations (including the new mortgage payment) should not exceed 40% of your gross monthly income.

Here is a practical example. Suppose you and your sibling originally took out a home loan of 4,500,000 pesos, and you are now refinancing at a balance of 3,800,000 pesos. At 5.99% p.a. over 20 years, your monthly payment would be approximately 27,200 pesos. If your gross monthly income alone is 80,000 pesos and your other obligations total 4,000 pesos, your debt-to-income ratio would be around 39% — just within the acceptable range. Your sibling could then be removed from the refinanced loan.

Important: the outgoing co-borrower will typically need to sign a deed of waiver or quitclaim, relinquishing their interest in the property. This may have tax and title implications, so consulting a real estate lawyer before proceeding is strongly recommended.

Can You Add a New Co-borrower During Refinancing?

Absolutely. Adding a co-borrower is often a deliberate strategy to strengthen a refinancing application — particularly when the primary borrower's income alone is not enough to qualify for the desired loan amount or term.

Adding a spouse, adult child, or employed sibling as a co-borrower can increase your combined qualifying income, which may allow you to access a lower rate tier or a longer repayment term. For example, a borrower earning 45,000 pesos per month might struggle to qualify for a 5,000,000-peso refinanced loan. Add a co-borrower earning 55,000 pesos per month, and suddenly the combined 100,000-peso income makes the numbers work comfortably.

New co-borrowers must submit their own full set of documents and will undergo the same credit and income evaluation as the primary borrower. Their credit history will affect the outcome just as much as the original borrower's.

Documentary Requirements for Multi-Co-borrower Refinancing

Each co-borrower — whether they are being retained, added, or even removed — will typically need to provide the following. Requirements vary slightly by bank, but this is a reliable baseline across BDO, BPI, Metrobank, Security Bank, and PNB:

For Each Active Co-borrower (Retained or New)

For Self-Employed Co-borrowers

For the Property (Shared by All Co-borrowers)

The Step-by-Step Process for Multi-Co-borrower Refinancing

Step 1: Align All Co-borrowers First

Before approaching any bank, have an honest conversation with every co-borrower. Are all parties agreeable to refinancing? Is anyone being removed or added? What will the new loan structure look like? Misalignment at this stage is the number-one reason joint refinancing applications collapse partway through.

Step 2: Check Each Co-borrower's Credit Standing

Request your Credit Information Corporation (CIC) credit report and encourage every co-borrower to do the same. Any co-borrower with a history of missed payments, unpaid credit cards, or existing adverse credit listings will need to address these before applying. If one co-borrower has credit issues, read our guide on how to refinance with bad credit in the Philippines for strategies that may still apply to your situation.

Step 3: Calculate Your Combined Qualifying Income

Add up the gross monthly incomes of all co-borrowers who will be on the new loan. Use this combined figure to determine how much you can borrow and what monthly payment you can comfortably sustain. As a rule of thumb, your monthly mortgage payment should not exceed 30-35% of your combined gross income for comfortable repayment.

Step 4: Gather All Documents Simultaneously

Do not wait for one co-borrower's documents before starting to collect another's. Assign each co-borrower a checklist and set a shared deadline. A common bottleneck is waiting for an ITR stamp from the BIR — build in at least two weeks for this if any co-borrower is self-employed.

Step 5: Submit Through a Mortgage Broker or Directly to Banks

You can approach banks individually, but with multiple co-borrowers and the added complexity of a joint application, working through a digital mortgage broker like Nook is significantly more efficient. Nook submits your application to multiple banks simultaneously, handles follow-ups on your behalf, and helps you compare competing offers — all at no cost to you.

Step 6: Attend Property Appraisal

The new lender will appraise your property to confirm its current market value. Typically, banks will lend up to 80% of the appraised value. Make sure your requested loan amount does not exceed this threshold. At least one co-borrower (usually the primary borrower) should be available to coordinate access for the appraiser.

Step 7: Legal Documentation and Title Transfer

Once approved, the new bank will prepare the loan agreement, promissory notes, and deed of real estate mortgage. All active co-borrowers must sign these documents. If a co-borrower cannot appear in person, some banks accept a Special Power of Attorney (SPA) — but this must be notarized, and the bank must pre-approve this arrangement. If you are refinancing out of a Pag-IBIG loan to a private bank, see our dedicated guide on Pag-IBIG home loan refinancing to private banks for the additional steps involved in that specific scenario.

Step 8: Loan Takeout and Settlement

The new lender releases funds directly to your existing bank or lender to settle the outstanding balance. Your existing loan is closed, and the mortgage annotation on your title is released and re-annotated in favor of the new lender. This process can take four to eight weeks after approval.

How Much Can Multiple Co-borrowers Actually Save?

The math on joint refinancing is the same as for any refinancing — the more you owe and the higher your current rate, the more you save. But with multiple borrowers often having taken out larger loans to begin with, the savings can be substantial.

Consider a couple who took out a 6,000,000-peso loan at 8.5% p.a. for 20 years. Their current monthly payment is approximately 52,100 pesos. If they refinance to 5.99% p.a. for the remaining 15 years on a balance of 5,200,000 pesos, their new monthly payment drops to around 43,800 pesos — a saving of approximately 8,300 pesos per month, or nearly 100,000 pesos per year.

Common Mistakes to Avoid

Which Banks in the Philippines Are Most Flexible with Co-borrowers?

BPI and Security Bank have historically been among the most flexible when it comes to non-traditional co-borrower arrangements — for example, co-borrowers who are not spouses. BDO and Metrobank tend to have more streamlined processes for straightforward spouse co-borrower applications. PNB and RCBC can be good options for self-employed co-borrowers given their more flexible income documentation policies. Nook works with all major Philippine banks and can match your specific co-borrower setup to the lender most likely to approve and offer you the best rate.