Figuring out how much home loan you can afford is one of the first — and most important — steps in buying a property in the Philippines. A housing loan calculator based on salary gives you a practical starting point: most Philippine banks and Pag-IBIG will approve a monthly amortization of no more than 30–35% of your gross monthly income, so understanding that formula before you apply can save you from rejection and wasted time. Whether you're eyeing a condo in BGC, a townhouse in Laguna, or a house-and-lot in Cebu, this guide walks you through exactly how to compute your affordable loan amount, monthly payment, and total interest cost.
But getting approved for a loan is only half the story. If you already have a home loan and you're paying interest rates between 7% and 10% — which is common for loans re-priced in recent years — you could be significantly overpaying every month. Through Nook, the Philippines' first digital mortgage broker, homeowners can access refinance rates starting at 5.99% p.a., completely free of charge. Below, we answer the 10 most important questions Filipino borrowers ask about housing loan calculators and salary-based affordability.
Philippine banks and Pag-IBIG (HDMF) generally use a debt-to-income ratio of 30–35% of your gross monthly income to determine your maximum monthly amortization. From that maximum amortization figure, the lender back-calculates the maximum loan amount you can borrow at a given interest rate and term.
Here is a quick reference table based on a 20-year loan at 6.5% p.a. (a typical bank rate):
- Gross monthly salary of 20,000: Max amortization ≈ 7,000 → Loanable amount ≈ 960,000
- Gross monthly salary of 40,000: Max amortization ≈ 14,000 → Loanable amount ≈ 1,920,000
- Gross monthly salary of 60,000: Max amortization ≈ 21,000 → Loanable amount ≈ 2,880,000
- Gross monthly salary of 100,000: Max amortization ≈ 35,000 → Loanable amount ≈ 4,800,000
- Gross monthly salary of 150,000: Max amortization ≈ 52,500 → Loanable amount ≈ 7,200,000
These are estimates. The actual loanable amount depends on the bank's specific policies, your credit history, and the appraised value of the property (banks typically lend up to 80% of appraised value). Always cross-check with the lender directly.
Monthly amortization is computed using the standard fixed-rate mortgage formula:
M = P × [r(1+r)^n] / [(1+r)^n − 1]
Where:
- M = monthly amortization
- P = principal loan amount
- r = monthly interest rate (annual rate ÷ 12)
- n = total number of monthly payments (years × 12)
Example: Loan of 3,000,000 at 6.5% p.a. for 20 years.
- r = 6.5% ÷ 12 = 0.5417% per month (0.005417)
- n = 20 × 12 = 240 payments
- M = 3,000,000 × [0.005417 × (1.005417)^240] / [(1.005417)^240 − 1]
- M ≈ 22,356 per month
Total amount paid over 20 years: ≈ 5,365,440. Total interest paid: ≈ 2,365,440.
Most bank websites and Nook's platform let you run these calculations automatically — but understanding the formula helps you verify results and compare offers.
The 30% rule (sometimes 35% for higher-income borrowers) is a lending guideline used by most Philippine banks and Pag-IBIG: your total monthly debt obligations — including the new home loan amortization — should not exceed 30% of your gross monthly income.
This rule protects both the borrower and the lender. For the borrower, it ensures you have enough take-home pay to cover living expenses, utilities, food, and savings. For the bank, it reduces the risk of default.
Important nuance: If you already have existing loans (car loan, personal loan, credit card minimum payments), those are counted against your 30% allowance too. So if you earn 80,000 per month and already pay 8,000 a month on a car loan, your remaining capacity for a housing loan amortization is approximately 80,000 × 30% − 8,000 = 16,000 per month.
Always declare all existing obligations on your application — misrepresenting your debt load is grounds for loan cancellation and can damage your credit standing.
The answer depends largely on your income level and the property price:
- Pag-IBIG (HDMF): Best for borrowers earning below 50,000/month. Maximum loanable amount is 6,000,000, and Pag-IBIG's rates (currently 5.375%–6.5% for fixed periods) are competitive for lower-priced properties. Qualification criteria are generally more accessible, and the program is designed for ordinary wage earners.
- Bank loans (BDO, BPI, Metrobank, Security Bank, etc.): Better for higher-income borrowers, larger loan amounts (above 6,000,000), or self-employed individuals with strong financials. Banks offer more flexible structures but require more documentation and have stricter credit scoring.
One strategy worth knowing: some Pag-IBIG borrowers with older loans locked into higher rates have found significant savings by refinancing their Pag-IBIG home loan to a private bank once their property value has appreciated and their income has grown. Rates through Nook start at 5.99% p.a., which can beat older Pag-IBIG pricing depending on when your loan was originated.
There is no single universal minimum salary — it varies by lender and loan amount. However, here are typical minimums as of 2024–2025:
- Pag-IBIG: No strict minimum salary, but you must be an active Pag-IBIG member with at least 24 monthly contributions. The loan amount is limited to what your amortization capacity allows.
- BDO, BPI, Metrobank: Generally require a minimum gross monthly income of 30,000–40,000 for employed applicants, or at least 2 years of profitable operations for self-employed.
- Security Bank, RCBC, UnionBank: Similar to BDO/BPI range; some accept combined spousal income.
- EastWest Bank, PSBank: Some accept applications with gross income starting around 25,000/month depending on loan size.
The practical minimum is set by the 30% rule: if the monthly amortization on the smallest loan you need exceeds 30% of your gross income, you will likely be declined — regardless of the bank's stated minimum. Focus on finding a property priced within your capacity, or build up savings to make a larger down payment and reduce the loan principal.
Let's walk through a full sample computation for a borrower earning 25,000 gross per month.
Step 1 – Maximum monthly amortization:
25,000 × 30% = 7,500 per month
Step 2 – Maximum loanable amount (20-year term, 6.5% p.a.):
Using the mortgage formula with M = 7,500, r = 0.5417%, n = 240:
P = 7,500 × [(1.005417)^240 − 1] / [0.005417 × (1.005417)^240]
P ≈ 1,005,000
Step 3 – Property price you can afford:
Banks lend up to 80% of appraised value, so:
1,005,000 ÷ 0.80 = ≈ 1,256,250 property value
Down payment needed: ≈ 251,250 (20%)
Step 4 – Total interest over 20 years:
7,500 × 240 = 1,800,000 total payments − 1,005,000 principal = ≈ 795,000 total interest
If the same borrower can access a rate of 5.99% p.a. through Nook instead of 6.5%, the maximum loanable amount increases to approximately 1,046,000 — a difference of about 41,000 more borrowing power at the same monthly budget, or significant monthly savings on the same loan amount.
Interest rate is the single biggest lever in your mortgage cost. Even a 1–2 percentage point difference compounds dramatically over a 20-year loan. Here is a comparison for a 3,000,000 loan over 20 years:
- At 10.00% p.a.: Monthly amortization ≈ 28,951 | Total paid ≈ 6,948,240 | Total interest ≈ 3,948,240
- At 8.00% p.a.: Monthly amortization ≈ 25,093 | Total paid ≈ 6,022,320 | Total interest ≈ 3,022,320
- At 7.00% p.a.: Monthly amortization ≈ 23,260 | Total paid ≈ 5,582,400 | Total interest ≈ 2,582,400
- At 5.99% p.a.: Monthly amortization ≈ 21,492 | Total paid ≈ 5,158,080 | Total interest ≈ 2,158,080
Moving from 8% to 5.99% saves approximately 3,601 per month — that's 43,212 per year, or over 864,000 saved over the life of the loan. This is why refinancing to a lower rate, when available, is one of the highest-return financial moves a homeowner can make.
Yes — most Philippine banks and Pag-IBIG allow co-borrowers, and a spouse is the most common co-borrower arrangement. Combined gross income is used to compute the 30% amortization ceiling, which directly increases your maximum loanable amount.
Example: You earn 40,000/month and your spouse earns 35,000/month. Combined gross income = 75,000. Maximum monthly amortization = 75,000 × 30% = 22,500. At 6.5% p.a. over 20 years, this supports a loan of approximately 3,010,000 — versus only about 1,600,000 on your income alone.
Key rules for co-borrowers in the Philippines:
- Both applicants must meet the lender's age requirements (typically, the older co-borrower must be below 65 at loan maturity)
- Both must submit full documentation: payslips, ITR, employment certificates
- Both are equally liable for the debt — it will appear on both credit records
- For self-employed co-borrowers, most banks require 2 years of audited financial statements
Non-spousal co-borrowers (siblings, parents) are allowed by some banks but not all — confirm with the specific lender.
While requirements vary slightly by bank, the standard documentary requirements for a Philippine housing loan application are:
For employed applicants:
- Duly filled-out loan application form
- Valid government-issued IDs (at least 2)
- Certificate of Employment with compensation (issued within 3 months)
- Latest 1–3 months payslips
- Income Tax Return (BIR Form 2316 or 1701) for the past 1–2 years
For self-employed applicants:
- DTI or SEC registration documents
- Audited Financial Statements for the past 2 years
- Latest ITR (BIR Form 1701)
- Business permits and Mayor's permit
- Bank statements for the past 6–12 months
For the property:
- Certified True Copy of the Transfer Certificate of Title (TCT) or Condominium Certificate of Title (CCT)
- Tax Declaration and latest Real Property Tax receipts
- Contract to Sell or Deed of Absolute Sale
- Location map and vicinity map
For refinancing applications specifically, you will also need your existing loan's Statement of Account showing the outstanding balance, and your latest amortization payment history.
Yes — there are several ways to reduce your monthly amortization after your loan is already active:
- Refinancing to a lower interest rate: This is the most impactful option. If your current rate is 7%–10% and you refinance to 5.99% p.a. through Nook, your monthly payment drops substantially. Nook's service is 100% free to the borrower — banks pay Nook a referral fee. On a 3,000,000 loan moving from 8% to 5.99%, you save approximately 3,601 per month.
- Loan restructuring with your existing bank: Some banks allow you to extend your remaining term, which spreads out payments and lowers the monthly amount (though you pay more interest overall).
- Partial prepayment (lump-sum payments): Paying down a portion of your principal reduces the outstanding balance, which lowers future amortization if you request re-amortization, or shortens your term.
- Re-pricing at re-pricing date: Philippine bank loans typically have a fixed rate for 1, 2, 3, or 5 years, then re-price. At your re-pricing anniversary, you can negotiate a better rate or switch lenders.
If you're already in a loan and wondering whether refinancing makes sense for your situation, it's also worth reading about how to refinance even if your credit history isn't perfect — options exist for more borrowers than most people realize.