Kalkulator ng Kakayahang Bumili ng Bahay – Magkano ang Bahay na Kaya Ko?
Find out how much home you can afford based on your annual income, down payment savings, monthly debts, and current mortgage rates. Our calculator uses the industry-standard 28/36 rule and shows your realistic price range.
Paano gamitin ang calculator na ito
- Ilagay ang Annual Gross Income (₱)
- Ilagay ang Down Payment (₱)
- Ilagay ang Monthly Debt Payments (₱)
- Ilagay ang Mortgage Interest Rate (%)
- Ilagay ang Loan Term (years)
- I-click ang Kalkulahin na buton
- Basahin ang resultang ipinapakita sa ibaba ng calculator
The 28/36 Rule Explained
The 28/36 rule is the cornerstone of mortgage affordability. It states: spend no more than 28% of gross monthly income on housing costs (front-end ratio) and 36% of gross monthly income on total debt (back-end ratio).
Housing costs in the 28% rule include: mortgage principal + interest + property taxes + homeowner's insurance (PITI) + HOA fees + PMI if applicable.
Example: Income ₱5,600,000/year = ₱466,648/month. Max PITI = ₱466,648 × 0.28 = ₱130,648. Max total debt = ₱466,648 × 0.36 = ₱168,000.
With ₱28,000 in existing monthly debts, you have ₱168,000 − ₱28,000 = ₱140,000 available for housing — limited by the back-end rule to ₱140,000 (not the ₱130,648 front-end maximum in this case).
Down Payment Impact on Affordability
Your down payment dramatically affects what you can afford and what you pay:
| Down Payment % | PMI Required? | Monthly Cost Impact | Upfront Cash Needed (₱22,400K home) |
|---|---|---|---|
| 3% (FHA) | Yes (MIP, permanent) | +₱11,200–400/mo | ₱672,000 |
| 5% | Yes (~0.5-1.5%/yr) | +₱8,400–300/mo | ₱1,120,000 |
| 10% | Yes (lower rate) | +₱4,200–150/mo | ₱2,240,000 |
| 20% | No | ₱0.00 | ₱4,480,000 |
PMI (Private Mortgage Insurance) typically costs 0.5–1.5% of the loan amount annually. On a ₱19,600,000 loan at 1%, that's ₱196,000/year or ₱16,352/month — a significant chunk of housing budget.
Mortgage Rate Impact on Affordability
Interest rates have a massive effect on home buying power. For a ₱22,400,000 home with 20% down (₱17,920,000 loan):
| Interest Rate | Monthly P&I | Total Interest Paid |
|---|---|---|
| 4.0% | ₱85,512 | ₱12,865,216 |
| 5.0% | ₱96,208 | ₱16,717,176 |
| 6.0% | ₱107,464 | ₱20,766,424 |
| 7.0% | ₱119,224 | ₱25,004,896 |
| 8.0% | ₱131,488 | ₱29,429,288 |
A 1% rate increase on a ₱17,920,000 loan adds ~₱11,200/month to your payment. This is why refinancing (or buying when rates are lower) saves hundreds of thousands over a 30-year loan.
Hidden Costs of Homeownership
First-time buyers often underestimate true homeownership costs beyond the mortgage payment:
- Property taxes: Typically 0.5–2.5% of home value annually (₱112,000–₱560,000+ on a ₱22,400K home)
- Homeowner's insurance: ₱44,800–₱112,000/year depending on location and coverage
- Maintenance and repairs: Budget 1–2% of home value annually (₱224,000–₱448,000 on a ₱22,400K home)
- HOA fees: ₱5,600–₱56,000+/month for condos and planned communities
- Utilities: Higher than renting — ₱11,200–₱33,600/month for a house vs. apartment
- Closing costs: 2–5% of purchase price (₱448,000–₱1,120,000 on a ₱22,400K home)
The true monthly cost of homeownership is often 25–40% higher than the mortgage payment alone. Factor these into your budget before committing.
How Lenders Calculate Maximum Loan Amount
Lenders use both DTI ratios and loan-to-value (LTV) ratios to determine maximum mortgage amounts. The lower of these two limits applies:
- Income-based limit: Maximum monthly payment × 12 months / annual rate factor
- Property-based limit: Appraised value × maximum LTV (typically 80% without PMI, 95–97% with PMI or FHA)
Credit score also affects the maximum loan. With a 620 credit score, you may only access FHA financing with a higher rate. A 760+ score unlocks the best conventional rates and more flexible terms.
First-Time Homebuyer Programs
If you're a first-time buyer (or haven't owned a home in 3 years), you may qualify for assistance:
- FHA loans: 3.5% down with 580+ credit score; 10% down with 500–579
- USDA loans: 0% down for rural/suburban properties; income limits apply
- VA loans: 0% down for eligible veterans and service members; no PMI
- State/local programs: Down payment assistance grants of ₱280,000–₱1,400,000+ in many states
- Good Neighbor Next Door: 50% off for teachers, law enforcement, firefighters, EMTs in HUD-designated areas
Rent vs. Buy: When Does Buying Make Sense?
Use the price-to-rent ratio (P/R) to decide: P/R = Home Price ÷ Annual Rent. Below 15: buying is clearly better. 15–20: depends on personal factors. Above 20: renting may be financially smarter.
Other factors favoring buying: plan to stay 5+ years, stable income, building equity/wealth, desire to customize, tax benefits (mortgage interest deduction for itemizers). Factors favoring renting: need flexibility, market at peak, high maintenance costs, better investment opportunities elsewhere.
Huling na-update: March 2026
Frequently Asked Questions
How much house can I afford on ₱3,360,000 a year?
On ₱3,360,000/year (₱280,000/month), the 28% rule gives ₱78,400/month for housing (PITI). At a 7% rate with 20% down, this translates to roughly ₱9,800,000–₱11,200,000 purchase price depending on taxes and insurance in your area.
How much house can I afford on ₱5,600,000 a year?
₱5,600,000/year = ₱466,648/month. Max PITI at 28% = ₱130,648/month. At 7% for 30 years with 20% down, this supports approximately ₱16,240,000–₱18,480,000 in purchase price.
What credit score do I need to buy a house?
Minimum: 500 (FHA with 10% down). Practical minimum: 620 for most conventional loans. Best rates: 740–760+. Each 20-point improvement in credit score can improve your rate by 0.25–0.5%, saving tens of thousands over the loan life.
How much do I need for a down payment?
Minimum: 3% conventional, 3.5% FHA, 0% VA/USDA. Recommended: 20% to avoid PMI. On a ₱19,600,000 home, 20% = ₱3,920,000. Many buyers use 5–10% and accept PMI to buy sooner.
Is it better to get pre-qualified or pre-approved?
Pre-approval is better. Pre-qualification is a quick estimate based on self-reported data. Pre-approval involves verified income, credit pull, and asset verification — it's a conditional commitment from a lender and strengthens your offer.
What is the rule of thumb for home affordability?
The most common rules: (1) 28/36 rule — PITI ≤28% of gross income, total debts ≤36%. (2) 2.5–3x income rule — home price ≤ 2.5–3× annual gross income. Both are starting points; adjust for local market conditions.
How does student debt affect home buying?
Student loans count as monthly debt payments in DTI calculations. Even in deferment, lenders typically count 0.5–1% of the balance as a monthly payment. High student debt significantly reduces maximum mortgage amount.
Can I buy a house with no down payment?
Yes, through VA loans (veterans), USDA loans (rural areas), or some state/local first-time buyer programs. No-down-payment loans result in higher monthly payments and immediate negative equity if the market drops.
What is included in a mortgage payment?
A full mortgage payment (PITI) includes: Principal (loan repayment), Interest, property Taxes (escrowed), and homeowner's Insurance (escrowed). May also include PMI, HOA fees, and flood insurance.
How do I get the best mortgage rate?
Key factors: credit score (760+ for best rates), down payment (20%+ for no PMI), loan type (conventional vs. FHA), loan amount, and lender competition. Shop at least 3–5 lenders and consider mortgage brokers who access multiple wholesale lenders.