Mortgage PITI Calculator

PITI: The Payment That Actually Hits Your Account

Why lenders think in PITI

Underwriting runs on two ratios: front-end (PITI ÷ gross monthly income, target ≤ 28%) and back-end (PITI + all debts ÷ income, ≤ 36–43% typically, up to 50% for some programs). A $2,275 P&I looks affordable on a $8,500 income until $700 of escrow pushes front-end past 35%. Running PITI first is how you shop in your real range instead of falling for the listing agent's P&I framing.

Escrow: the part that keeps rising

Your P&I is fixed for 30 years; nothing else is. Property taxes reset with assessments — buyers in fast-appreciating areas routinely see $200–400/month escrow jumps at the first annual analysis, since the seller's old assessed value doesn't survive the sale in many states. Insurance repricing has been steeper: national average premiums rose roughly 30–40% between 2020 and 2025. Budget PITI with a cushion, because year-two PITI is almost never year-one PITI.

Killing PMI

PMI on conventional loans typically runs 0.3–1.5% of the loan annually and drops automatically at 78% LTV — but you can request removal at 80%, and appreciation counts: after two years, many lenders honor a new appraisal showing 25% equity. On a $360K loan, that's ~$100–250/month recovered for the cost of a $500 appraisal. FHA loans are stingier: their MIP usually lasts the life of the loan unless you refinance out.

What escrow adds: same house, different states

The P&I on a $360,000 loan at 6.5% is $2,275 everywhere in America. The PITI is not. Property tax rates and insurance markets make the identical loan cost dramatically different amounts per month depending on the state — which is why relocation budgets built on P&I comparisons go wrong.

The Florida and Texas rows deserve a second look: both undercut the P&I-plus-a-little mental model from opposite directions — Texas through taxes, Florida through an insurance market where premiums have roughly doubled since 2020. In coastal Florida, windstorm and flood coverage can push the insurance line alone past $500/month, quietly making it the second-largest component of the payment.

Running the affordability math backwards

House shopping works better inverted: start from income, derive the PITI ceiling, then solve for price. At the classic 28% front-end ratio, a $10,000 gross monthly income supports $2,800 of PITI. Subtract realistic escrow for your target area — say $600 of taxes and insurance — leaving $2,200 for P&I, which at 6.5%/30yr supports roughly a $348,000 loan. Add your down payment and that's your honest price ceiling. Buyers who run this sequence rarely fall in love with houses 20% out of range; buyers who start from listing photos routinely do. Lenders will approve more than 28% — FHA debt-to-income limits stretch to 46.9%/56.9% with compensating factors — but approval ceilings and comfortable budgets are different instruments measuring different things.

What people get wrong

• Budgeting on the listing's estimated payment. Listing-site payment widgets frequently default to 20% down, best-tier rates, and the seller's current (pre-reassessment) tax bill. Post-sale reassessment in many states resets taxes to your purchase price — a $150–400/month surprise arriving with the first escrow analysis.
• Forgetting PITI isn't the whole cost of the house. Maintenance runs 1–2% of home value annually on average, utilities scale with square footage, and HOA special assessments exist. A comfortable PITI with zero slack is not a comfortable housing budget.
• Ignoring PMI's exit. Conventional PMI ends — automatically at 78% LTV, on request at 80%, and often earlier via a new appraisal after appreciation. Budgeting as if PMI is permanent overstates long-run cost; forgetting to request removal overpays for years. FHA loans differ: their MIP typically persists until refinance.
• Comparing lenders on rate alone. Two identical rates can differ by thousands in fees, and the escrow components don't vary by lender at all — the shopping surface is rate + points + lender fees, best compared on Loan Estimate forms side by side.

Rate sensitivity: what a point does to the payment

Because P&I dominates the payment, rate moves swing PITI more than any escrow line. On the $360,000 / 30-year example, each column below holds taxes and insurance constant at $500/month combined:

Two working conclusions fall out of the table. First, a full point of rate is worth roughly $230–240/month on this loan size — which prices the value of credit-score improvement, of paying discount points, and of shopping three lenders in actual dollars. Second, buying during a high-rate period isn't permanent: the escrow lines are yours forever, but the rate is refinanceable when markets move, which is why "marry the house, date the rate" became the industry's cliché — accurate as long as you stress-test that you can afford the current rate indefinitely, since refinance windows are hoped for, never guaranteed.

The same sensitivity runs through qualification: at 28% front-end on a $10,000 gross income, the jump from 5.5% to 7.5% rates shrinks the supportable loan from about $405,000 to $329,000 — a $76,000 haircut to buying power with no change in the buyer's finances. Rate environments quietly reprice the entire housing search, and running your ceiling at the current rate plus half a point is cheap insurance against a lock expiring in a rising week.

The first-year escrow surprise, explained

New owners routinely see PITI jump 5–15% at the first annual escrow analysis, and the mechanics are worth understanding before the letter arrives. Lenders estimate year-one taxes and insurance at closing, often from the seller's stale figures; when reassessment and a fresh insurance policy land higher, the account runs a shortage. The adjustment then hits twice in one number — the new higher monthly amount going forward, plus a shortage-repayment surcharge spread over twelve months to refill the cushion (lenders may hold up to two months of escrow as buffer under RESPA). Owners can usually pay the shortage as a lump sum to blunt the monthly jump, and the surcharge portion drops off after a year even if the letter's arithmetic doesn't advertise it. The defensive move at purchase: ask the lender at closing to base the escrow estimate on your own purchase-price reassessment and a real insurance quote rather than the seller's stale bill, and budget the first-year PITI with a $150–300 monthly cushion in reassessment states — money that, if the surprise never comes, simply becomes an extra principal payment.

Where the numbers come from

The 28/36 qualifying ratios are the conventional underwriting convention popularized through Fannie Mae and Freddie Mac guidelines; FHA's higher ceilings are published in HUD Handbook 4000.1. Effective property-tax rates by state come from Tax Foundation and Census American Community Survey aggregations; insurance ranges reflect NAIC premium data and 2020–2025 market reporting on coastal-state repricing. PMI termination rules are statutory — the Homeowners Protection Act of 1998 sets the 78%/80% automatic and by-request thresholds. Amortization math is the standard annuity formula; every lender's number matches it to the penny.

Frequently asked questions

What percentage of income should PITI be?

The classical target is 28% of gross income (front-end ratio), with total debt payments under 36%. Loans get approved well above that — FHA to 46.9%/56.9% with compensating factors — but approval and comfort are different questions, especially with maintenance running another 1–2% of home value yearly.

Is escrow required?

Usually with under 20% down, or on FHA/VA loans. With 20%+ equity, many lenders waive escrow (sometimes for a small fee or rate bump), letting you pay taxes and insurance directly and keep the float.

Why did my PITI go up on a fixed-rate mortgage?

Escrow. Taxes or insurance rose, and the lender both covers the new cost and collects extra to rebuild the cushion — a double hit in the adjustment year. It typically moderates the following year if costs stabilize.

How do I estimate property taxes for a home I haven't bought yet?

Multiply the expected purchase price by your county's effective tax rate (county assessor sites publish it; listing pages usually show the current bill). In states that reassess on sale — California caps at 1% + local add-ons of purchase price, others reassess to market — use YOUR price, not the seller's taxes, which may reflect decades-old assessments.

Does the escrow account earn me anything, and can I skip it?

Escrow accounts typically pay no interest in most states (about 15 states mandate a small rate). With 20%+ equity on conventional loans, most lenders waive escrow — sometimes for a fee of 0.125–0.25% of the loan — letting you invest the float and pay taxes and insurance directly. It's worthwhile discipline math: the float earnings are modest, the missed-payment penalty is not.