Understanding your mortgage payment
A mortgage payment looks like one number, but it is really several bills bundled together. Knowing which parts are fixed, which drift over time, and which you can remove helps you compare loans and predict your future costs.
Last reviewed August 2026
Principal, interest, taxes, insurance
On a fixed-rate loan, the principal-and-interest portion never changes. What changes is the split: early on, most of each payment is interest on a large balance; later, most of it is principal. The total stays flat.
Taxes and insurance are usually collected with the payment and held in an escrow account, so the servicer can pay those bills when they come due. Both tend to rise over time — reassessments lift the tax bill, and premiums climb — so your total payment creeps up even on a fixed-rate loan.
PMI, HOA, and other add-ons
If your down payment was under 20%, a conventional loan adds private mortgage insurance until you reach roughly 20–22% equity. FHA loans carry a mortgage insurance premium that usually lasts the life of the loan. Condos and many planned communities add monthly HOA dues, which lenders count in your housing ratio even though the servicer never touches that money.
Why the breakdown matters
- Comparing loans: two quotes with the same rate can have very different payments if one estimates escrow more accurately.
- Planning ahead: the P&I part is locked, but you should budget 2–4% annual growth in the taxes-and-insurance part.
- Removing PMI: knowing your equity position tells you when to request cancellation, which can cut $100–$300 from the payment.
Terms in this guide
- PITI — Principal, Interest, Taxes, and Insurance — the four parts of a typical monthly mortgage payment when taxes and insurance are escrowed. Lenders use PITI, plus any HOA dues, as the housing figure in your DTI.
- Escrow account — An account the loan servicer uses to hold and pay your property taxes and homeowners insurance. You pay one-twelfth of the annual total with each mortgage payment, and the servicer disburses the bills when due. Shortfalls trigger an annual escrow adjustment.
- Private mortgage insurance (PMI) — Insurance that protects the lender, not you, when a conventional loan's down payment is under 20%. It typically costs 0.3–1.5% of the loan per year and, by law, must be cancelled once the loan reaches 78% of the original value.
- Principal — The amount of money actually borrowed and still owed, separate from the interest charged to borrow it. Each mortgage payment reduces the principal by a little more than the last.
- Interest — The cost of borrowing, charged as a percentage of the outstanding principal. On an amortizing mortgage, interest is calculated on the remaining balance each month, so it shrinks as the balance falls.