Home Loan Debt-to-Income Ratio Calculator for Filipino Borrowers

Your debt-to-income (DTI) ratio is the percentage of your gross monthly income that goes toward paying all your debts — including your existing home loan, car loan, personal loans, and credit card minimum payments. It is expressed as a simple percentage.

Philippine banks use your DTI ratio as a key measure of your ability to repay a new or refinanced home loan. A low DTI signals that you have enough breathing room in your monthly budget to comfortably service a mortgage. A high DTI signals financial strain, which makes lenders nervous and often leads to loan rejections or lower approved amounts.

For example, if your gross monthly income is 80,000 and your total monthly debt payments are 28,000, your DTI is 35% — which most Philippine banks would consider acceptable for a home loan application.

Philippine banks follow a straightforward formula:

DTI Ratio = (Total Monthly Debt Obligations ÷ Gross Monthly Income) × 100

Here is a step-by-step example for a borrower earning 100,000 per month:

• Existing car loan monthly payment: 12,000
• Credit card minimum payment: 3,000
• Proposed new home loan monthly amortization: 22,000
• Total monthly obligations: 37,000

DTI = (37,000 ÷ 100,000) × 100 = 37%

Most banks compute this using your gross income (before tax and deductions), not your take-home pay. Some lenders, particularly Pag-IBIG, may use net income depending on the loan program, so always confirm with your lender which figure applies.

Note that the proposed home loan amortization is included in the calculation — banks want to know your DTI after you take on the new mortgage, not before.

Most Philippine banks set a maximum DTI of 40% for home loan applicants, though some lenders are slightly more flexible at 45% for higher-income borrowers or those with very strong credit profiles.

Here is a quick guide to how banks generally interpret DTI ranges:

• Below 30% — Excellent. You will likely qualify for the loan amount you want and may access the most competitive rates.
• 30% to 40% — Good. Most banks will approve your application; standard rates apply.
• 40% to 45% — Borderline. Some banks may approve with conditions, a lower loan amount, or a shorter term.
• Above 45% — High risk. Most Philippine banks will decline the application at this level.

BDO, BPI, Metrobank, Security Bank, and RCBC all generally apply the 40% ceiling. If your DTI sits just above the threshold, strategies like paying off a small loan or adding a co-borrower's income can make a real difference.

Follow these four steps to calculate your own DTI ratio before you apply to any bank:

1. Add up your gross monthly income. Include your basic salary, fixed allowances, rental income, and any other regular, documentable income. If you are self-employed, use your average monthly net income from your latest two ITRs.
2. List all current monthly debt payments. Include home loan amortizations, car loan payments, personal loan installments, and the minimum payment due on each credit card.
3. Estimate your proposed home loan monthly payment. For a 3,000,000 loan at 5.99% p.a. over 20 years, the monthly amortization is approximately 21,490. Add this to your existing obligations.
4. Divide total obligations by gross income and multiply by 100.

Example: Gross income = 120,000. Existing car loan = 10,000. Proposed home loan = 21,490. Total = 31,490. DTI = (31,490 ÷ 120,000) × 100 = 26.2% — well within the 40% threshold.

Once you know your DTI, you can use our refinance calculator to see how a lower interest rate would reduce your monthly amortization and further improve your ratio.

Philippine banks typically include the following monthly obligations when computing your DTI:

• Existing home loan amortizations — any current mortgage you are already paying
• Car loan monthly payments
• Personal loan installments — bank loans, salary loans, SSS/GSIS loans
• Credit card minimum payments — usually 3% to 5% of your outstanding balance
• Business loans — if you are a guarantor or co-borrower
• Pag-IBIG or SSS housing loan amortizations
• The proposed new home loan amortization — this is always factored in

What banks generally do not include: utility bills, insurance premiums, tuition fees, and living expenses. These are considered personal expenses, not formal debt obligations.

One important nuance: if you have a credit card with a large outstanding balance but are paying more than the minimum, most banks will still use the minimum payment figure in the DTI calculation — not your actual payment. Keep this in mind when planning your application.

Philippine banks generally accept the following income sources for DTI calculations, provided they are properly documented:

• Basic monthly salary — evidenced by payslips (latest 1–3 months) and a Certificate of Employment
• Fixed monthly allowances — transportation, representation, and similar allowances that appear consistently on your payslip
• Rental income — supported by lease contracts and bank statements showing regular deposits
• Business income (for self-employed borrowers) — based on the average of your last two years' ITR and audited financial statements
• OFW remittances — documented through proof of remittance and employment contract abroad
• Spouse's income (for co-borrowers) — banks allow you to pool income with a spouse or co-borrower, which can significantly raise your eligible loan amount

Income that is typically not counted: tips and commissions (unless consistently documented over two or more years), freelance project income without ITR support, and informal income with no paper trail.

Pro tip: If you are an OFW earning in foreign currency, most Philippine banks will convert your income to pesos using the prevailing BSP reference rate at the time of application.

A quick way to estimate your maximum eligible loan amount is to work backwards from the 40% DTI ceiling. Here is a reference table for borrowers with no existing debts, based on a 20-year loan term at 5.99% p.a.:

• Monthly gross income: 50,000 → Maximum monthly amortization: 20,000 → Estimated max loan: approx. 2,790,000
• Monthly gross income: 80,000 → Maximum monthly amortization: 32,000 → Estimated max loan: approx. 4,460,000
• Monthly gross income: 120,000 → Maximum monthly amortization: 48,000 → Estimated max loan: approx. 6,690,000
• Monthly gross income: 200,000 → Maximum monthly amortization: 80,000 → Estimated max loan: approx. 11,150,000

Remember: if you already have existing monthly debt obligations (car loan, personal loan, etc.), those are subtracted from your maximum allowable amortization first, which reduces the loan amount you qualify for.

These figures assume the best available refinance rate of 5.99% p.a. through Nook. If your current bank is charging you 8% or 9%, your eligible loan amount at the same income level would be lower. Check current market rates on our Philippine home loan interest rates page.

Yes — and this is one of the most powerful and underused strategies available to Filipino homeowners. Here is how it works:

If you are currently paying a home loan at 8.5% p.a. and you refinance to 5.99% p.a. through Nook, your monthly amortization drops significantly. A lower amortization means a lower monthly debt obligation, which directly reduces your DTI ratio.

Concrete example:

• Outstanding loan balance: 4,000,000
• Remaining term: 20 years
• Current rate: 8.5% p.a. → Monthly amortization: approx. 34,720
• Refinanced rate: 5.99% p.a. → Monthly amortization: approx. 28,650
• Monthly saving: approx. 6,070

If your gross monthly income is 100,000, your DTI drops from 34.7% to 28.7% — a meaningful improvement that can help you qualify for additional credit, or simply give you more financial breathing room every month.

Nook's service is completely free to borrowers. We shop your loan across multiple Philippine banks and find you the best available rate. Use our refinance savings calculator to see your exact numbers before you apply.

A DTI above 40% does not mean you are permanently locked out of homeownership. Here are the most effective strategies Filipino borrowers use to bring their DTI down:

1. Pay off smaller debts first. Eliminating a personal loan or clearing a credit card balance removes those monthly obligations from your DTI calculation entirely. Even paying off a loan with a 5,000 monthly payment can make a meaningful difference.
2. Increase your income documentation. If you receive bonuses, allowances, or side income that is properly documented in your ITR, make sure your bank is counting it. Many borrowers leave income on the table.
3. Add a co-borrower. A spouse, sibling, or parent with stable income can be added as a co-borrower. Their income is pooled with yours, increasing your gross monthly income and lowering your combined DTI.
4. Refinance existing loans to lower rates. Reducing your monthly amortization on any existing loan — not just your home loan — lowers your total obligations and improves your ratio.
5. Extend your loan term. A longer mortgage term reduces the monthly amortization, which lowers your DTI. Note that this increases total interest paid over the life of the loan, so weigh this trade-off carefully.
6. Make a larger down payment. A bigger down payment means a smaller loan, which means a lower monthly amortization and a better DTI.

If you are already a homeowner looking to refinance, the single fastest fix is often to switch to a lower interest rate. Nook can help you access rates starting from 5.99% p.a. at no cost to you.

Yes, there are some important differences between Pag-IBIG and commercial bank DTI policies in the Philippines.

Pag-IBIG (HDMF): Pag-IBIG uses a concept called net disposable income (NDI) rather than a strict DTI percentage. They require that after all monthly obligations and a basic living allowance (typically 3,500 for the borrower plus 1,000 per dependent), you still have enough income to cover the proposed monthly amortization. In practice, this translates to a similar 35–40% effective ceiling, but it is calculated differently and can be more flexible for lower-income borrowers.

Commercial banks (BDO, BPI, Metrobank, Security Bank, etc.): These lenders apply a straightforward DTI ratio, typically capped at 40% of gross monthly income. Documentation requirements are stricter, and the process is more standardized.

Key practical differences:

• Pag-IBIG may be more accessible for borrowers with lower incomes but stable employment
• Commercial banks offer higher loan ceilings and can process larger loan amounts more efficiently
• For refinancing purposes, commercial banks currently offer more competitive rates — the best available through Nook is 5.99% p.a.

If you are unsure which lender is right for your situation, Nook can help you compare options across multiple Philippine banks and find the program that fits your income profile and DTI.