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Mortgage basics

What is a mortgage?

The simplest answer, in plain English — what a mortgage is, how the monthly payment works, the types of loans, and the steps from pre-approval to the keys.

A mortgage is a loan used to buy or refinance a home, secured by the home itself. You borrow the money, pay it back over time with interest, and the lender holds a lien on the property until the loan is paid off. If payments stop, the lender can foreclose — which is what makes it a secured loan and why mortgage rates are lower than credit cards.

How a mortgage payment works

Most people call the monthly payment “PITI,” for its four parts:

Early in the loan most of your payment is interest; over time the balance falls and more goes to principal. You can see this for your own numbers with our payment calculator and amortization schedule.

Fixed vs. adjustable rate

A fixed-rate mortgage keeps the same rate and principal-and-interest payment for the life of the loan — predictable and the most common choice. An adjustable-rate mortgage (ARM) starts lower, then adjusts after a set period; it can suit buyers who expect to move or refinance before it adjusts.

The main loan types

The steps, start to finish

How much can you borrow?

Lenders look at your debt-to-income ratio, credit, down payment, and the property. The classic guideline is spending no more than about 28% of gross income on housing and 36% on total debt, though many programs go higher. Our affordability calculator solves for the price that fits your numbers.

Where Lexington is different: we place the loans other lenders decline — FHA and VA down to a 500 FICO, HELOCs to 600, reverse to 500 with past mortgage lates OK, and DSCR investor loans to a 0.75 ratio. See all programs →

Common questions

What is the difference between pre-qualification and pre-approval?
Pre-qualification is a quick estimate based on what you tell the lender. Pre-approval is stronger: the lender verifies your income, credit, and assets and commits to a loan amount, which makes your offer far more competitive.
How much down payment do I need?
It depends on the program. Conventional loans can go well under 20% down, FHA lower still, and VA often requires zero down for eligible veterans. Putting 20% down avoids PMI, but it is not required.
What credit score do I need for a mortgage?
Program dependent. Lexington's FHA and VA options reach down to a 500 FICO where many lenders stop at 580, and we have paths for thinner or bruised credit that other lenders decline.
How long does getting a mortgage take?
Many purchase loans close in about 30 days and refinances in a similar window, though it varies with the property, program, and how quickly documents come in. Starting with pre-approval speeds everything up.
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