If you're exploring home loan refinancing in the Philippines, one of the first questions you might ask your bank is whether you need a co-borrower. The short answer is: it depends. While refinancing on your own is absolutely possible, a co-borrower can sometimes unlock better rates, higher loan amounts, or approval when your individual profile falls just short of a bank's requirements. Understanding when a co-borrower helps — and when they're unnecessary — can save you time and paperwork.
At Nook, we work with multiple Philippine banks to find the best refinance rates available, currently as low as 5.99% p.a. Whether you're refinancing solo or with a co-borrower, this guide walks you through everything you need to know — from eligibility rules to the pros and cons of bringing someone else onto your mortgage.
A co-borrower is a person who applies for a home loan together with the primary borrower and shares equal legal responsibility for repaying the debt. In the Philippines, co-borrowers are listed on the loan contract and the property title, meaning they have both financial obligations and ownership rights in the property.
A co-borrower is different from a co-maker or guarantor. A guarantor only steps in if the primary borrower defaults, whereas a co-borrower is equally liable from day one. When you refinance, the bank reassesses the entire loan application — including any co-borrower arrangement — so this is a good opportunity to review whether your current setup still works for you.
No, a co-borrower is not a universal requirement for home loan refinancing in the Philippines. Most banks will assess your application based on your individual income, credit history, and the outstanding loan amount. If your financials are strong enough on their own, you can refinance without a co-borrower.
However, a co-borrower becomes necessary — or at least strongly recommended — in specific situations:
- Your monthly income alone does not meet the bank's debt-to-income ratio requirements (typically your total monthly loan payments should not exceed 30–40% of gross monthly income).
- The loan amount you're refinancing is large relative to your individual income.
- You are self-employed with irregular income documentation.
- You are nearing the maximum loan age limit (most banks require the loan to be fully paid by age 65–70).
When in doubt, Nook can quickly assess whether your solo application is strong enough or whether adding a co-borrower would materially improve your chances or your rate.
Philippine banks generally accept the following as co-borrowers for a refinance application:
- Spouse: The most common co-borrower. If you are legally married, many banks actually require your spouse to be a co-borrower regardless of their income, since the property is considered conjugal property under the Family Code.
- Parents or in-laws: Accepted by most banks, though the co-borrower's age may affect the maximum loan term offered.
- Children (adult, at least 18 years old): Commonly used when the primary borrower is older and needs a younger co-borrower to extend the loan term.
- Siblings: Accepted by some banks but policies vary.
Non-relatives and live-in partners are generally not accepted as co-borrowers by most Philippine banks. The co-borrower must also be a Filipino citizen or a qualified foreign national under BSP guidelines, and must meet the bank's minimum income and age requirements (typically 21–65 years old at loan maturity).
In most cases, adding a co-borrower does not directly lower your interest rate in the Philippines. Banks like BDO, BPI, Metrobank, and Security Bank set refinance rates based primarily on the loan amount, the loan-to-value (LTV) ratio, the repayment term, and current market conditions — not the number of borrowers on the application.
That said, a co-borrower can indirectly improve your rate or terms by:
- Strengthening your combined income profile, which may allow you to qualify for a larger loan or a shorter term (and shorter terms often carry lower rates).
- Helping you meet the minimum income threshold for premium rate tiers that some banks offer to higher-income borrowers.
- Reducing the perceived risk to the bank, which in some cases results in a more competitive offer.
The most impactful way to get a lower rate is to compare offers across multiple lenders. Through Nook, the best refinance rate currently available is 5.99% p.a. — significantly lower than the 7–10% many homeowners are currently paying.
Yes, refinancing is one of the most practical opportunities to add a co-borrower to your home loan. Because refinancing involves taking out an entirely new loan with a new lender, the bank underwrites the application from scratch. You can include a co-borrower who was not on your original loan, and that person's income and credit history will be factored into the new application.
Adding a co-borrower during refinancing is common in the following scenarios:
- A borrower who took out the original loan as a single person is now married and wants to add their spouse.
- A borrower is approaching retirement age and wants to add an adult child to extend the maximum loan term.
- A borrower's income has decreased and they need a co-borrower to meet the bank's income requirements.
Note that adding a co-borrower typically means they will also be added to the property title. Consult a lawyer if you have concerns about the ownership implications.
Yes, refinancing also gives you the opportunity to remove a co-borrower from your home loan — provided you can qualify for the refinanced loan on your own. This is a common reason Filipinos refinance, especially after a separation, annulment, or a change in family financial circumstances.
To remove a co-borrower, the bank will re-evaluate your application based solely on your individual income, credit standing, and the remaining loan balance. If your financials are sufficient, the new loan will be in your name only and the co-borrower will be released from liability going forward.
Keep in mind that removing a co-borrower also has implications for the property title. You will typically need to execute a deed of conveyance or a similar legal document to reflect the change in ownership, and this involves additional fees. A real estate lawyer or notary public can guide you through this process.
A co-borrower is treated as a full loan applicant from a documentation standpoint. Philippine banks typically require the following from co-borrowers:
- Valid government-issued IDs (at least two, e.g., passport, driver's license, SSS/UMID, PRC ID)
- Proof of income:
- For employed co-borrowers: Latest 3 months' payslips, Certificate of Employment with compensation, and the most recent ITR (BIR Form 2316 or 1700)
- For self-employed co-borrowers: Audited Financial Statements for the past 2 years, DTI/SEC registration, and ITR with BIR stamp
- For OFW co-borrowers: Employment contract, POEA documentation, and proof of remittances
- Proof of billing or residence
- Marriage certificate (if co-borrower is a spouse)
- Birth certificate (if co-borrower is a relative)
Requirements vary slightly by bank. Nook can provide you with a precise document checklist based on the specific lender you're applying with, saving you the back-and-forth.
Anyone agreeing to be a co-borrower should fully understand the financial and legal implications before signing:
- Equal liability for the debt: If the primary borrower stops making payments, the bank can and will pursue the co-borrower for the full outstanding balance. This is not a minor risk — it means the co-borrower's credit score, assets, and income are all on the line.
- Impact on borrowing capacity: The home loan will appear on the co-borrower's credit record. This reduces how much they can borrow for their own purchases, such as a car loan or their own home loan.
- Difficulty exiting the arrangement: A co-borrower generally cannot simply remove themselves from the loan without the primary borrower refinancing or paying off the loan in full.
- Co-ownership of the property: Because they are typically added to the title, co-borrowers have legal rights to the property, which can complicate estate planning or future property sales.
Being asked to be a co-borrower is a significant commitment. Both parties should discuss the arrangement openly and ideally seek independent legal advice.
A co-borrower with strong credit and stable income can improve your overall application profile and may help offset some concerns a bank has about your individual credit history. However, it is not a guaranteed solution. Philippine banks conduct credit checks on all borrowers on the application, and if the primary borrower's credit issues are severe — such as an existing default or foreclosure — many banks will decline the application regardless of the co-borrower's profile.
That said, a co-borrower is worth considering if your credit challenges are relatively minor, such as a few late payments in the past or a lower-than-ideal credit score due to high existing obligations. For a deeper look at your options, see our guide on how to refinance your home loan with bad credit in the Philippines, which covers alternative lenders and strategies that may apply to your situation.
If adding a co-borrower isn't practical or desirable, there are several other strategies worth exploring:
- Refinance to a shorter loan term: A shorter term reduces the bank's risk and can sometimes help marginal applications get approved. It also means you'll pay significantly less interest overall.
- Make a partial prepayment before refinancing: Reducing your outstanding loan balance improves your LTV ratio, which strengthens your application.
- Switch loan types: For example, if you currently have a Pag-IBIG loan, refinancing to a private bank can offer lower rates and more flexible structures. Read more about Pag-IBIG home loan refinancing to private banks to see how this works.
- Compare more lenders: Not all banks have the same income requirements or credit policies. A bank that declines you solo may not be the right fit — another lender may approve you at a competitive rate without needing a co-borrower.
- Improve your income documentation: Self-employed borrowers in particular can strengthen applications by ensuring their financials are well-documented and up to date.
Nook's free service compares offers from multiple Philippine banks simultaneously, so you can quickly see which lenders are most likely to approve your application and at what rate — without needing to approach each bank separately.