What Is PITI? The Four Parts of a Real Mortgage Payment

PITI stands for principal, interest, taxes, and insurance — the four pieces of a typical monthly mortgage payment, and the number that actually leaves your checking account each month. It matters because the payment most people shop with — the loan payment a rate quote implies — is only the first two letters. Lenders qualify you on the whole thing, and the other two letters are big enough to change what you can afford.

The four parts

• Principal — the slice that reduces what you owe. Early in the loan it's small; amortization explains why.
• Interest — the lender's charge on the balance you still owe. Together, principal and interest (P&I) are the fixed loan payment.
• Taxes — property tax, billed by your county once or twice a year but collected from you monthly, usually through an escrow account.
• Insurance — homeowners insurance, plus private mortgage insurance if your down payment was under 20%.

The federal Loan Estimate — the standard form every lender must give you when you apply, explained line by line by the CFPB's Loan Estimate guide — prints these as one "Estimated Total Monthly Payment" for exactly this reason: the loan payment alone is not the bill.

A worked example

Say you buy a $350,000 home with 10% down: a $315,000 loan at 6.5% for 30 years.

• Principal + interest: $1,991 a month.
• Taxes: $4,200 a year in property tax, or $350 a month.
• Insurance: $1,800 a year in homeowners insurance ($150 a month), plus PMI around $131 a month at a 0.5% annual rate.

Total PITI: about $2,622 a month — $631 more than the $1,991 loan payment, or roughly a third again on top. Budget around the P&I number and every month is $631 worse than you planned. Our mortgage calculator has optional tax and insurance fields for exactly this reason: fill them in and the receipt shows the whole payment, not the flattering two-letter version.

When it matters

Three places. First, qualifying: the common 28/36 lending guideline caps PITI — not P&I — at 28% of gross monthly income. At 28%, the payment above needs about $9,365 a month, or roughly $112,000 a year. Our affordability calculator runs that math in both directions. Second, comparing homes: two houses at the same price can carry very different tax bills, and a condo adds HOA dues on top — the cheaper listing isn't always the cheaper payment. Third, budgeting: PITI is the number your paycheck has to clear every month, so it's the one that belongs in your budget, not the rate quote.

Honest limits

PITI still understates the cost of owning. It doesn't include HOA dues, utilities, or maintenance and repairs — which are irregular but not optional. And on a fixed-rate loan, only the P&I is actually fixed: taxes and insurance get re-billed every year, so the full payment drifts even though the rate never moves. That drift arrives through the escrow account, and it surprises enough people that we wrote it up separately.

The rate quote gives you P&I. The bank qualifies you on PITI. Your budget lives on PITI plus everything PITI leaves out. Use the right number for the question you're asking.

Common questions

Is PMI part of PITI?

It's the second I. When your down payment is under 20%, PMI rides along in the monthly payment until you've built enough equity to remove it — at which point your PITI drops.

Do I pay taxes and insurance monthly no matter what?

Usually, via escrow. Some borrowers with 20%+ down can waive escrow and pay the tax and insurance bills directly — the money is the same, only the timing and who holds it change.

Why did my payment change on a fixed-rate loan?

Taxes or insurance moved. The P&I on a fixed-rate loan genuinely never changes; the escrow portion is repriced annually. Your escrow statement shows exactly which line did it.

This article is general information, not personalized financial advice. How we write and review articles is covered in the editorial note on our About page.