Down Payment Strategies
Putting down 20% or more avoids the cost of Private Mortgage Insurance (PMI), which can add $100-300/month to your payment. However, you do not need 20% to buy a home:
- Conventional: As low as 3% down
- FHA: 3.5% minimum down payment
- VA: 0% for eligible veterans
- USDA: 0% in eligible rural areas
15-Year vs. 30-Year
On a $280,000 loan at 6.5%:
- 30-year: $1,770/mo, $357,000 total interest
- 15-year: $2,440/mo, $159,000 total interest
The 15-year option saves nearly $200,000 in interest but requires $670 more per month.
What Is PITI?
PITI stands for Principal, Interest, Taxes, and Insurance. These four components make up your total monthly housing cost. Lenders use PITI to determine how much you can borrow.
Closing Costs
Budget 2-5% of the purchase price for closing costs. On a $350,000 home, expect $7,000-$17,500 in fees including:
- Loan origination fee (0.5-1%)
- Appraisal ($300-600)
- Title insurance ($500-1,500)
- Home inspection ($300-500)
- Prepaid taxes and insurance
When to Use This Calculator
- Before house hunting: Set a realistic budget based on what monthly payment you can afford.
- Comparing loan offers: Plug in different rates to see the true cost difference over the loan life.
- Refinance decisions: Compare your current payment against a new rate to estimate monthly savings.
Real-World Examples
Example 1 — First-time buyer: Home price $320,000, 5% down ($16,000), 30-year at 7.0%, $3,000 property tax/yr, $1,200 insurance/yr. Monthly PITI ≈ $2,311. Annual income needed: $83,000+ (28% rule).
Example 2 — Move-up buyer: Home price $550,000, 20% down ($110,000), 15-year at 6.25%. Monthly P&I ≈ $3,748. Total interest paid: $124,600 — less than half the 30-year equivalent.
Limitations & Assumptions
- Does not include HOA fees, which average $200-400/month in many communities.
- Property tax is entered as a fixed annual amount — real taxes change with assessed value.
- Does not model adjustable-rate mortgages (ARM) where rate changes after an initial period.
- PMI cost is not calculated separately — add $50-300/month if down payment is under 20%.
Related Guides
- How to Use a Mortgage Calculator Effectively — amortization, rate comparisons, and extra payment strategies
- Which Financial Calculator to Use and When
Data Sources
Payment formula: standard amortization (P × r(1+r)ⁿ / ((1+r)ⁿ − 1)). Down payment loan types per HUD and Fannie Mae guidelines. Historical mortgage rate context from Freddie Mac PMMS weekly survey.
U.S. Mortgage Market Snapshot
The Freddie Mac Primary Mortgage Market Survey tracked the 30-year fixed rate averaging 6.81% in 2023, a 21-year high, after sitting below 3.5% as recently as early 2022. That swing doubled the monthly principal-and-interest payment on a $400,000 loan from about $1,796 to $2,609 — a $293,000 total-interest difference over 30 years.
CFPB HMDA data for 2023 shows lenders received 11.5 million mortgage applications across 5,113 active institutions with a 49.5% approval rate and 17.4% denial rate. The average loan amount was $327,324 nationwide but varied dramatically by state: California averaged $569,952 and New York reached $1,015,183, while Texas sat closer to $301,608. Debt-to-income ratio was the most common denial reason (42% of denials).
Down-payment behavior is shifting: the National Association of Realtors' 2023 Profile of Home Buyers found the median down payment fell to 15% overall and just 8% for first-time buyers, well below the 20% needed to avoid PMI. FHA loans (3.5% minimum down, ~0.55% annual MIP) and VA loans (0% down for eligible veterans, ~2.3% funding fee) captured a combined 18% of 2023 originations as affordability pressure mounted.
Sources: Freddie Mac PMMS, CFPB HMDA 2023 release, NAR Profile of Home Buyers
Where this monthly payment lands nationally
2023 CFPB HMDA + Freddie Mac PMMS distribution of typical U.S. monthly housing payments. The marker represents the calculator's example PITI of about $2,840.
U.S. monthly housing payment distribution
Sample peer set for an example $2,840 PITI
Methodology & Assumptions
This calculator implements standard formulas drawn from primary-source authorities. Values are point-in-time estimates; consult a licensed professional for high-stakes decisions. See the per-input definitions and source citations below.
How this works
Computations are deterministic and run client-side — no inputs leave your
browser. Formulas are derived from
standard published formulas for the calculator's domain (mortgage,
taxes, energy, conversions, etc.). When the underlying agency publishes
updated rates or thresholds we refresh defaults and update the page's
lastmod timestamp.
| Input | Default | Source / authority |
|---|---|---|
| All inputs | Domain-typical defaults | Editorial methodology, CalcMesh 2026 |