PH Calculator logoPH Calculator

Loan Affordability Calculator Philippines (Debt-to-Income)

Enter gross and net income, existing loans, and your desired new loan. You will see the amortizing monthly payment, back-end DTI, a safe payment ceiling (30% of gross minus existing debt), and suggested maximum loan amount at that ceiling.

Formula last updated:

Formulas are reviewed and updated about every 2 weeks.

Understanding your results

The affordability meter tracks back-end DTI using gross income — the same income figure many lenders start from when screening personal loans and auto loans. If your bar lands in the green zone (≤30% toward total debt service), you are closer to common conservative budgets. Orange and red zones signal stress: you may still be approved, but emergency savings and insurance should be in place.

What is debt-to-income ratio?

DTI divides total monthly obligations by monthly income. Front-end ratios sometimes focus only on housing; back-end ratios include all recurring debts. This calculator emphasizes back-end DTI because most Filipinos juggle multiple obligations — motorcycle loans, credit cards, and family support remittances.

Safe DTI percentages

Rules of thumb vary: 28/36 rules appear in US literature; Philippine banks may use internal score cards instead of publishing a single DTI cap. Treat 30% of gross as a budgeting line, not a guarantee of approval. If your DTI is “safe” but liquidity is tight, shorten the loan term only after stress-testing emergencies.

How banks decide if you qualify

Underwriters look at payslips, ITRs, bank statements, and bureau scores. Self-employed applicants may need audited financials or longer track records. Collateral and co-makers can shift outcomes even when DTI looks borderline.

Examples with different salary levels

A ₱40,000 gross earner with ₱10,000 existing loans has ₱2,000 headroom before hitting a 30% gross DTI (₱12,000 total). A ₱120,000 gross earner with the same ₱10,000 debt can support larger new payments — but lifestyle inflation often eats the difference unless you plan savings first.

Common loan mistakes

  • Comparing only monthly payment without checking total interest.
  • Taking the longest term to minimize payment while doubling finance charges.
  • Co-signing loans without tracking them in your own DTI.

Stress-testing your budget

A loan that passes a 30% DTI ratio on paper can still feel tight if you support extended family, pay rent that rises yearly, or rely on variable commissions. Before signing, simulate one bad month: lower income, higher utilities, and a medical bill. If the new installment still leaves room for savings, you are closer to a sustainable choice.

Rates quoted in marketing materials may exclude insurance, processing fees, or late fees. Add those costs mentally (or line-by-line in a spreadsheet) before comparing lenders. Our amortization calculator on the general loan page can show how small rate differences change lifetime interest.

Related loan calculators

Sources & references

Monthly payment uses the standard amortizing loan formula (same family as our loan calculator). DTI thresholds here are rules of thumb for budgeting — bank policies vary.

Loan affordability FAQs

What is debt-to-income ratio (DTI)?
DTI compares your monthly debt payments to your monthly income. Banks use it to gauge whether you can handle new credit. Back-end DTI includes housing, car, credit card minimums, and the new loan payment.
What DTI is considered safe?
A common budgeting guideline keeps total debt payments around 30% or less of gross monthly income, though banks may approve higher ratios for prime borrowers with strong credit and collateral.
How do banks decide if I qualify?
Lenders review income documents, credit history, employment stability, collateral, and internal policy limits. DTI is one screening tool — not the only factor.
Should I use gross or net income?
Banks often underwrite using gross income for ratio tests, but your household budget should prioritize net cash flow. This calculator shows both gross-based DTI (primary) and net-based DTI for reference.
What mistakes do borrowers make?
Ignoring insurance and fees, underestimating existing debts, and stretching term length just to pass DTI checks without building an emergency fund.