PITI Calculator
Calculate your complete monthly housing cost — Principal, Interest, Taxes, Insurance, HOA fees, and PMI in one place. See a full payment breakdown, visual cost chart, annual total, and whether your PITI passes the 28% Rule affordability check used by lenders. Free, private, no signup required.
What Is PITI and Why Lenders Use It
PITI stands for Principal, Interest, Taxes, and Insurance — the four core components that make up your true monthly housing cost. When you apply for a mortgage, lenders calculate your PITI payment to determine how much of your income goes toward housing. According to the Consumer Financial Protection Bureau (cfpb.gov), your PITI must not exceed 28% of your gross monthly income for a loan to be considered "affordable" under conventional underwriting guidelines. This 28% threshold, often called the front-end debt-to-income ratio, is one of the most important qualification criteria for a mortgage approval.
Many buyers focus only on the Principal and Interest portion — the base mortgage payment — and are surprised when their actual monthly obligation is hundreds of dollars higher. A $400,000 home with a 10% down payment and 6.75% rate has a P&I payment of about $2,336. But add property taxes ($367/mo), homeowners insurance ($117/mo), and PMI ($165/mo), and the real PITI is approximately $2,985 per month — nearly $650 more. This calculator shows every component so there are no surprises.
How Each PITI Component Is Calculated
Understanding how each component works helps you identify which ones you can control and reduce:
- Principal & Interest (P&I): Calculated using the standard amortization formula based on loan amount, interest rate, and term. On a 30-year loan, the majority of early payments go toward interest. Freddie Mac publishes weekly average 30-year rates used by lenders nationwide.
- Property Taxes: Expressed as a percentage of the home's assessed value, typically collected monthly into an escrow account. The US national average is approximately 1.1% per year per the Lincoln Institute of Land Policy. However, rates range from 0.28% in Hawaii to 2.49% in New Jersey — always verify your county rate.
- Homeowners Insurance: Required by all mortgage lenders, it protects the structure from fire, storms, and other perils. The national average for a $400,000 home is roughly $1,400–$1,600 per year. Higher-risk areas (hurricane zones, flood plains) cost significantly more.
- PMI (Private Mortgage Insurance): Required on conventional loans when your down payment is less than 20%. PMI protects the lender — not you — and typically costs 0.2%–1.5% of the loan amount annually based on credit score and LTV ratio. It can be cancelled once you reach 20% equity per the Homeowners Protection Act.
- HOA Fees: Monthly dues paid to a homeowners association for shared amenities and building maintenance. Common in condos, townhomes, and planned communities. US average ranges from $200–$400/month for condos, less for single-family communities.
The 28% Rule and Lender Affordability Standards
The 28% rule is the industry standard used by Fannie Mae, Freddie Mac, and most conventional lenders: your total PITI should not exceed 28% of your gross monthly income. Lenders also apply a 36% back-end ratio — total debt (PITI + car loans + student loans + credit cards) should stay under 36% of gross income. Some loan programs allow higher ratios: FHA loans permit up to 31% front-end and 43% back-end; VA loans have no hard front-end limit but use a residual income test.
To qualify comfortably for a $3,000 PITI payment under the 28% rule, you need a gross monthly income of at least $10,714 ($128,571 annually). If your PITI ratio exceeds 28%, you have three levers: increase your down payment to reduce P&I and eliminate PMI, choose a less expensive property, or improve your credit score to lower your interest rate.
Strategies to Reduce Your PITI Payment
Several strategies can meaningfully lower your total PITI without changing the home you buy:
- Increase your down payment: Going from 10% to 20% down eliminates PMI entirely, reduces your loan balance, and lowers P&I — potentially saving $300–$500/month on a $400K home.
- Shop for lower homeowners insurance: Rates vary by 30–50% between insurers for the same property. Bundling with auto insurance, installing security systems, and choosing a higher deductible can reduce premiums significantly.
- Appeal your property tax assessment: If your home is over-assessed, you can appeal through your county assessor's office. Studies show 20–40% of appeals result in a reduction. Lower assessed value directly reduces your monthly tax escrow.
- Improve your credit score before applying: A 40-point credit score improvement can reduce your interest rate by 0.25–0.5%, saving $50–$100/month on a $360K loan, plus lower PMI rates.
- Choose a 15-year term strategically: While 15-year monthly payments are higher, total interest paid is dramatically lower and equity builds faster, reaching 20% (PMI removal) in roughly half the time.
Sources: cfpb.gov, freddiemac.com. Last updated: May 2026.
Frequently Asked Questions
What does PITI stand for in a mortgage?
PITI stands for Principal, Interest, Taxes, and Insurance — the four core components of your full monthly mortgage payment. Principal reduces your loan balance, Interest is the cost of borrowing, Taxes refers to property taxes collected in escrow, and Insurance covers homeowners insurance (also escrowed). Lenders use your total PITI payment to calculate your front-end debt-to-income ratio and determine mortgage affordability. HOA fees and PMI are sometimes added to make a complete PITIA or PITIA+PMI figure.
What is the 28% rule for mortgage payments?
The 28% rule states that your total monthly PITI payment should not exceed 28% of your gross monthly income. This is the front-end debt-to-income (DTI) ratio used by Fannie Mae, Freddie Mac, and most conventional lenders. For example, if your gross monthly income is $8,000, your maximum PITI under the 28% rule is $2,240. Lenders also apply a 36% back-end ratio covering all debt obligations. FHA loans allow slightly higher ratios (up to 31% front-end), while VA loans focus on residual income rather than a strict percentage.
How is the property tax portion of PITI calculated?
Your monthly property tax escrow is calculated by taking your annual property tax and dividing by 12. Annual property tax = home price × tax rate. For example, a $400,000 home with a 1.1% tax rate has an annual tax of $4,400, or $367/month escrowed. Rates vary widely by state and county — from 0.28% in Hawaii to 2.49% in New Jersey. Always check your specific county assessor website for the exact rate, as it significantly affects your PITI.
When is PMI included in the PITI payment?
PMI (Private Mortgage Insurance) is included in your monthly payment when your down payment is less than 20% of the home purchase price on a conventional loan. PMI typically costs 0.2%–1.5% of the loan amount per year, added to your monthly payment. For a $360,000 loan with 0.55% PMI rate, that is $165/month. Under the Homeowners Protection Act of 1998, PMI must be automatically cancelled when your loan balance reaches 78% of the original purchase price. You can request cancellation at 80% LTV with good payment history.
Are HOA fees included in PITI?
HOA (Homeowners Association) fees are not technically part of the traditional PITI acronym, but lenders do include them when calculating your total monthly housing expense for debt-to-income ratio purposes. This extended calculation is sometimes called PITIA (adding Association fees). HOA fees typically range from $100–$700/month for condos and townhomes, and $50–$200/month for single-family communities. They are not escrowed by lenders — you pay them directly to the HOA.
How can I lower my PITI payment?
There are five main ways to lower your PITI: (1) Increase your down payment to 20% or more to eliminate PMI and reduce the loan balance. (2) Improve your credit score before applying — a higher score lowers your interest rate and PMI rate. (3) Shop for lower homeowners insurance; rates vary 30–50% between carriers. (4) Appeal your property tax assessment if your home is over-assessed. (5) Choose a shorter loan term (15-year) if you can afford the higher P&I, as faster equity growth eliminates PMI sooner. Buying in a lower-tax jurisdiction also has a permanent impact on your PITI.