When a lender advertises a payment, they are almost always quoting principal and interest only. What actually leaves your bank account is larger — often considerably.
The components
Principal
The portion that reduces your loan balance. Early in an amortizing loan this is small; it grows every month.
Interest
The cost of borrowing, calculated on the outstanding balance. Early on this dominates the payment.
Property taxes
Assessed by your county or municipality, usually as a percentage of assessed value. Rates vary enormously — from under 0.5% of value annually in parts of the West to over 2% in parts of the Northeast and Texas. On a $400,000 home this is the difference between roughly $170 and $700 a month.
Most lenders collect this monthly into an escrow account and pay the bill when it comes due.
Homeowners insurance
Required by every lender. Typically 0.25%–0.75% of home value annually, though coastal, wildfire and hail-prone areas run far higher. Also usually escrowed.
Mortgage insurance
Applies when you put down less than 20% on a conventional loan (PMI), or on most FHA loans regardless of down payment (MIP). Cost depends on credit score, loan-to-value and programme — roughly 0.3% to 1.1% of the loan annually.
Conventional PMI cancels; FHA MIP on most current loans does not. That single difference is often worth more than the rate gap between the two programmes.
HOA or condo dues
Not paid to the lender, but very much part of your housing cost — and counted in your debt-to-income ratio when you qualify. Ranges from trivial to several hundred dollars a month, and special assessments can arrive without warning.
A worked example
$400,000 home, 10% down, 6.5% rate, 30-year fixed, 1.2% property tax rate, 0.4% insurance rate:
- Principal & interest on $360,000: $2,275
- Property taxes ($4,800/yr): $400
- Homeowners insurance ($1,600/yr): $133
- Mortgage insurance (approx. 0.52% at 90% LTV): $156
Total: about $2,964 a month — roughly 30% above the advertised principal-and-interest figure. That gap is what catches people out, and it is why the full payment calculator includes all of it by default.
What changes over time
On a fixed-rate loan the principal and interest portion never changes. Everything else does:
- Taxes rise with assessments and millage rates
- Insurance rises with replacement costs and claim history
- Mortgage insurance falls away entirely on conventional loans once you reach 78–80% loan-to-value
So a “fixed” payment is only partly fixed. Expect the escrow portion to drift upward and to receive an annual escrow analysis adjusting your payment accordingly.
Common questions
No. Advertised payments almost always show principal and interest only. Taxes and insurance typically add 25 to 40 percent on top.
They are not paid to the lender, but they are counted in your debt-to-income ratio and must be budgeted alongside the payment.
General information, not advice on your specific situation. Guidelines, limits and pricing change, and vary by lender, programme and state. Nothing here is a commitment to lend or an offer of credit. For tax or legal questions, consult a qualified professional.
Sree Basireddy · Mortgage Loan Officer, NMLS 2705737 · Loan Factory, Inc., NMLS 320841 · Equal Housing Opportunity