Refinancing your home loan is already a smart financial move — but what happens when your borrowing situation has changed since you first took out the mortgage? Whether you got married and want to add your spouse, went through a separation, or simply need a co-borrower's income to qualify for a better rate, refinancing with a co-borrower in the Philippines is absolutely possible. With Nook, you can explore options across multiple banks at once, at no cost to you.
This guide answers the most common questions Filipino homeowners ask about co-borrowers during the refinancing process — from eligibility rules and documentary requirements to how adding or removing a co-borrower affects your interest rate and monthly payments. If your current home loan is charging you anywhere between 7% and 10%, refinancing to as low as 5.99% p.a. through Nook could save you tens of thousands of pesos every year — especially with the right co-borrower arrangement.
A co-borrower (sometimes called a co-mortgagor) is a person who applies for the refinanced home loan together with the primary borrower. Unlike a guarantor or co-maker, a co-borrower's income is fully counted toward the loan qualification, and their name appears on the mortgage contract. Both the primary borrower and the co-borrower are equally liable for repaying the loan.
In a refinancing context, the co-borrower arrangement can either carry over from your original loan, be newly introduced, or be removed — depending on your current financial and personal circumstances. Philippine banks such as BDO, BPI, Metrobank, Security Bank, and PNB all allow co-borrower arrangements on refinanced home loans, though specific rules vary by institution.
Yes — refinancing is actually one of the most practical ways to add a co-borrower to your home loan. Since refinancing involves applying for an entirely new loan (which pays off your existing one), the bank evaluates you as a fresh applicant. This means you can include a co-borrower — such as a spouse, sibling, or parent — whose income will be combined with yours to strengthen the application.
Adding a co-borrower is especially useful if your individual income has not kept pace with your current obligations, if you want to qualify for a larger loan amount, or if the co-borrower has a strong credit history that improves the overall application profile. For example, if your monthly income alone barely meets the bank's debt-to-income ratio requirement on a 3,000,000-peso loan, adding a co-borrower with steady employment can make the application viable — and may even unlock a lower interest rate tier.
Yes, refinancing is the standard mechanism for removing a co-borrower from a Philippine home loan. You cannot simply delete a co-borrower's name from an existing mortgage contract — the loan must be restructured through refinancing. The new loan is evaluated based solely on the remaining borrower's financial standing, which means you must be able to qualify for the full loan amount on your own income.
Common reasons for removing a co-borrower include legal separation or annulment, the co-borrower needing their borrowing capacity freed up for their own property purchase, or simply a change in family financial arrangements. If the primary borrower's income has grown significantly since the original loan was taken out, qualifying alone is often straightforward. However, if your income is borderline, it is worth checking your debt-to-income ratio carefully before proceeding. Nook can assess your qualifying capacity across multiple banks before you commit to any application.
Philippine banks typically allow the following individuals to serve as co-borrowers on a refinanced home loan:
- Spouse — The most commonly accepted co-borrower. In fact, for legally married couples, many banks require the spouse to be a co-borrower even if they are not employed.
- Parents or parents-in-law — Accepted by most banks, though age restrictions apply (typically, the co-borrower must not exceed 65–70 years old at loan maturity).
- Siblings — Accepted by several banks, particularly BPI, Security Bank, and Metrobank, for immediate siblings with stable income.
- Children — Adult children with documented income are accepted by most banks.
- Other relatives — Some banks extend co-borrower eligibility to cousins, aunts, and uncles, but policies vary significantly.
Generally, co-borrowers must be Filipino citizens (or permanent residents), must have verifiable income through employment or business, and must be within the bank's acceptable age range at the time of loan maturity. Non-relatives are rarely accepted as co-borrowers by mainstream Philippine banks.
A co-borrower primarily improves your ability to qualify rather than directly lowering your interest rate. However, the two are connected in practice. Here is how:
- Stronger application profile: A co-borrower with stable employment and a clean credit record reduces the lender's perceived risk, which can help you access the best available rate tiers.
- Higher qualifying amount: Combined income allows you to refinance a larger outstanding balance, keeping your loan-to-value ratio healthy — which banks reward with lower rates.
- Meeting income thresholds: Some banks offer preferential rates (such as 5.99% p.a.) only to borrowers who meet a minimum monthly income threshold. A co-borrower's income can push you over that threshold.
To put this in concrete terms: on a 4,000,000-peso outstanding balance, moving from a 9% rate to 5.99% p.a. reduces your monthly payment by approximately 7,000 pesos on a 20-year term — saving you around 84,000 pesos per year. A co-borrower who helps you qualify for that lower rate is genuinely valuable.
Both the primary borrower and the co-borrower must submit their own sets of documents. For the co-borrower, banks typically require:
For employed co-borrowers:
- Duly accomplished bank application form (co-borrower section)
- Valid government-issued IDs (two pieces, with at least one photo ID)
- Certificate of Employment and Compensation (dated within 3 months)
- Latest three months' payslips
- Income Tax Return (ITR) for the most recent year, with BIR stamp
- Latest three to six months' bank statements
For self-employed co-borrowers:
- DTI or SEC registration, plus Articles of Incorporation (if applicable)
- Audited Financial Statements for the last two years
- ITR for the last two years with BIR stamp
- Latest six months' bank statements
- Business permits and Mayor's Permit
In addition to individual documents, both parties will need to provide the shared property documents: Transfer Certificate of Title (TCT), tax declaration, real property tax receipts, and the existing loan's statement of account. If the co-borrower is a spouse, the marriage certificate is also required. Nook's mortgage specialists provide a complete checklist tailored to your specific bank of choice so nothing is missed.
This is a common source of confusion. Here is the key distinction:
A co-borrower is a full co-applicant whose income is included in the loan qualification. They are jointly and severally liable for the debt, meaning the bank can pursue either borrower individually for the full outstanding amount. Their name typically appears on the mortgage contract and the title may reflect their ownership stake.
A co-maker (or guarantor) is a secondary guarantor who vouches for the primary borrower's creditworthiness but whose income is not counted toward loan qualification. Co-makers are held liable only if the primary borrower defaults — their role is more of a fallback for the bank rather than an active participant in the loan.
For refinancing purposes, adding a co-borrower is significantly more impactful than adding a co-maker. If your goal is to increase your qualifying amount or strengthen your application, you need a co-borrower. If you simply need to provide additional assurance to the bank without changing the borrowing amount, a co-maker may suffice — though most banks prefer co-borrowers for refinancing transactions.
Yes, OFWs (Overseas Filipino Workers) are accepted as co-borrowers by most major Philippine banks, including BDO, BPI, Metrobank, and Security Bank. This is particularly common when the OFW is the higher-earning spouse and the property is used by the family in the Philippines.
For OFW co-borrowers, additional documentation is typically required:
- Employment contract (with English translation if in a foreign language)
- Certificate of Employment from the employer abroad
- Latest three to six months' remittance records or bank statements showing regular deposits
- POEA-verified employment documents (for land-based OFWs) or OWWA membership (for sea-based OFWs)
- Special Power of Attorney (SPA) if the co-borrower cannot be physically present for signing — this must be notarized and authenticated by the Philippine consulate in the country where the OFW is based
If your co-borrower is currently abroad, processing timelines can be slightly longer due to the SPA requirements, but the refinancing is fully achievable. Nook can coordinate the paperwork requirements with you remotely, making the process as smooth as possible regardless of where your co-borrower is located.
The timeline for refinancing with a co-borrower is broadly similar to a standard refinancing, typically ranging from 30 to 60 banking days from complete document submission to loan release. Here is a general breakdown:
- Document preparation: 1–2 weeks (gathering all documents from both primary borrower and co-borrower)
- Bank processing and credit evaluation: 2–3 weeks (the bank assesses both applicants' income, credit history, and the property)
- Property appraisal: 1–2 weeks (the bank commissions an independent appraisal of the property)
- Loan approval and offer issuance: 1 week
- Legal documentation and title transfer: 2–4 weeks (preparing the new mortgage contract, annotating the TCT, and releasing funds to pay off the existing loan)
Where co-borrowers are abroad and an SPA is required, add approximately 1–2 weeks for consularisation. Delays most commonly arise from incomplete documents, so having a complete checklist from the start is critical. Nook assigns a dedicated mortgage specialist to track your application and proactively chase the bank on your behalf, which typically keeps timelines at the lower end of the range.
Nook is the Philippines' first digital mortgage broker, and the service is completely free for borrowers. Nook is compensated by the bank when your refinancing is successfully completed — not by you. There are no broker fees, no advisory fees, and no hidden charges.
Here is what Nook does for you when you refinance with a co-borrower:
- Multi-bank comparison: Nook checks rates and terms across BDO, BPI, Metrobank, Security Bank, PNB, RCBC, Chinabank, and other partner banks simultaneously, so you get the best available deal — currently as low as 5.99% p.a.
- Co-borrower eligibility assessment: Nook evaluates whether your intended co-borrower meets each bank's requirements before you apply, saving you from wasted applications.
- Complete document checklist: Nook provides a tailored checklist for both you and your co-borrower based on your employment type and the bank's specific requirements.
- End-to-end application management: From submission to approval, Nook tracks your application and coordinates between you, the co-borrower, and the bank.
- Savings illustration: Nook calculates exactly how much you will save monthly and over the full loan term, so you can make a fully informed decision.
If you are also considering moving your Pag-IBIG loan to a private bank as part of the refinancing, Nook handles that transition as well. Get started at nook.com.ph — the whole process begins with a free, no-obligation assessment.