Key takeaways

  • A mortgage is a loan secured by the home itself. If payments stop, the lender can eventually take the property through foreclosure.
  • Early payments go mostly to interest. The share that reduces your balance grows every month, a pattern called amortization.
  • After you apply, a lender must send you a standardized Loan Estimate within three business days, which makes offers easier to compare.
  • You should receive a Closing Disclosure at least three business days before closing. Compare it line by line with your Loan Estimate.

Buying a home with a mortgage can feel like a long series of forms handed to you by people who already know what they mean. The process is more predictable than it looks: it follows the same broad sequence for most buyers, and each step produces a document you can read, question and compare.

What a mortgage actually is

A mortgage is a loan used to buy real estate in which the property serves as collateral. At closing you sign two key documents: a promissory note, your promise to repay on the stated terms, and a mortgage or deed of trust, depending on your state, which gives the lender a claim on the home, called a lien, until the debt is repaid.

Every mortgage has four basic parts:

  • Principal: the amount you borrow.
  • Interest: what the lender charges for the loan, expressed as an annual rate.
  • Term: how long you have to repay. Thirty and fifteen years are the most familiar.
  • Payment schedule: usually monthly, set so the loan is fully repaid by the end of the term.

Many lenders also collect money for property taxes and insurance through an escrow account, which we cover in Escrow and PITI Explained.

How your payments are applied

With a standard fixed-rate mortgage, your principal and interest payment stays the same every month, but what it pays for shifts over time. Interest is calculated each month on the balance you still owe. Early on that balance is large, so most of the payment goes to interest. As the balance shrinks, more of each payment goes to principal.

Illustrative example: a $300,000 loan
Fixed interest rate (hypothetical)
6.00%
Term
30 years, 360 payments
Monthly principal and interest
$1,798.65
Payment 1: interest / principal
$1,500.00 / $298.65
Payment 240: interest / principal
about $815 / $984
Total interest over 30 years
about $347,515

Calculated for illustration only. Not a quote or an offer; taxes, insurance and fees are left out.

Two practical points follow. Extra payments toward principal early on can reduce total interest noticeably, provided your loan has no prepayment penalty. And because the balance falls slowly at first, selling soon after buying leaves less equity than the payments might suggest.

The process, step by step

1. Take stock of your finances

Before talking to a lender, look at what a lender will look at. Check your credit reports for errors, add up your monthly debt payments and compare them with your gross monthly income. Lenders call that comparison your debt-to-income ratio. Then work out how much cash you can put toward a down payment and closing costs while keeping savings for emergencies.

2. Get prequalified or preapproved

A prequalification is usually a quick estimate based on what you tell the lender. A preapproval generally involves a credit check and documents such as pay stubs, tax returns and bank statements. Neither is a final commitment to lend, and lenders use the terms differently.

3. Apply and compare Loan Estimates

Once a lender has six pieces of information (your name, income and Social Security number, the property address, its estimated value and the loan amount you want), it must send a Loan Estimate within three business days. Because every lender uses the same three-page form, it is the best tool you have for comparing offers side by side. Our guide to interest rate and APR explains how to read the numbers.

4. Choose a lender and lock your rate

A rate lock holds an interest rate for a set period, such as 30 or 45 days, while your loan is processed. If closing slips past the lock date, an extension may cost money, so ask about both before you lock.

5. Underwriting, appraisal and title

The underwriter verifies your income, assets, debts and credit. An appraisal estimates the home’s market value, and a title search confirms the seller can transfer clear ownership. A home inspection is separate: usually your choice, it reports on the condition of the house rather than its value.

6. Review the Closing Disclosure

You should receive a Closing Disclosure at least three business days before closing, showing the final terms and costs. Some figures can legitimately change from the Loan Estimate, but federal rules limit how much certain lender fees can increase. Ask about any difference you do not understand before closing day, not at the table.

Good to know

Wire fraud targets home buyers at exactly this stage. Before sending closing funds, confirm the wiring instructions by calling your title or settlement company at a number you already know is genuine, never one taken from an email.

7. Closing

At closing you sign the note and the security instrument, pay your down payment and closing costs, and receive the keys once the transaction is funded and recorded, depending on local practice.

After closing: living with the loan

The company that collects your payments is the servicer, which may not be the lender that made the loan. Servicing is often transferred; if yours is, you should be notified, and your loan terms do not change because a different company collects the payments.

If you ever expect trouble making payments, contact your servicer early, when there are usually more options. HUD-approved housing counseling agencies can also help you understand your choices.

Questions worth asking any lender

  • Does the rate you are quoting assume I pay discount points?
  • How long is the rate lock, and what happens if closing is delayed?
  • Does this loan have a prepayment penalty or a balloon payment?
  • Will I have an escrow account, and what is the estimated monthly amount?
  • Which closing services can I shop for myself?

Helpful official resources

About this guide. OwnMG publishes general educational information. It is not financial, legal or insurance advice, and OwnMG is not a lender, insurer, broker or government agency. Rules, limits and fees change, so confirm current details with your lender or the agency involved. Spotted something out of date? Tell us at info@ownmg.com.