How to Get Pre-Approved for a Mortgage

A pre-approval letter tells sellers you are a serious, qualified buyer — and it shows you exactly how much you can afford before you ever start touring homes. In a competitive market, offers without pre-approval often go straight to the bottom of the pile. Here is what pre-approval actually is, what you need to get one, and the step-by-step process.

Pre-qualified vs pre-approved: the difference matters

People confuse the two constantly, but they carry very different weight.

• Pre-qualification is an informal estimate based on numbers you self-report — your income, assets and debts. No documents are verified and no hard credit pull happens. It gives you a rough ballpark, but sellers do not take it seriously.
• Pre-approval means a lender has actually verified your income, assets and credit through a full application and document review. The result is a conditional commitment for a specific loan amount. Only this carries real weight with sellers and listing agents.

The practical rule: if you are just starting to think about buying, a pre-qualification is fine for a rough number. Before you make offers, you need pre-approval.

What you need to apply

Gather these before you start, and the process will go far faster:

• Income proof: two years of W-2s and tax returns, plus your two most recent pay stubs.
• Asset proof: two months of bank and investment statements showing your down payment and reserves.
• Identification: a government-issued ID and your Social Security number for the credit pull.
• Debt information: current loan balances, credit card statements and any other monthly obligations.

Self-employed borrowers and gig workers need more — usually two years of business returns, profit-and-loss statements, and sometimes a CPA letter. Start gathering early; the extra documentation is the most common source of delay.

The steps, in order

1. Check your credit. Pull your reports and fix any errors before a lender sees them. A small score improvement now can lower your rate for 30 years.
2. Know your budget. Run your numbers on a mortgage calculator so you know the payment you are comfortable with — not just the maximum you qualify for.
3. Gather documents. The list above. Having everything in one folder prevents back-and-forth delays.
4. Apply with 2-3 lenders. Multiple applications within a short window count as one credit inquiry, and comparing lenders can save you thousands on the rate.
5. Compare loan estimates. Lenders must send you a standardized Loan Estimate within three days. Compare the interest rate, APR, and closing costs line by line — not just the monthly payment.
6. Get your letter. Once approved, the lender issues a pre-approval letter stating the amount and terms. It is typically valid for 60 to 90 days.

What pre-approval does and does not mean

A pre-approval is a strong signal, not a guarantee. It means the lender has conditionally approved you for a certain amount — but final approval still depends on the property appraising for the price, the title being clear, and your finances not changing before closing.

Two rules to protect yourself after pre-approval:

• Do not make big financial moves. No new credit cards, no car loans, no large deposits you cannot document, and no changing jobs. Any of these can void the pre-approval at the last minute.
• Do not feel locked in. Pre-approval does not obligate you to that lender. You can still shop and switch lenders up until you lock the rate.

Frequently asked questions

How long does pre-approval take?

With documents ready, many lenders turn it around in one to three business days, and some do same-day automated approvals. A complicated self-employment situation can stretch it to a week or more.

Does pre-approval hurt my credit?

It triggers a hard inquiry, which can drop your score a few points — but multiple mortgage applications within a 14- to 45-day window count as a single inquiry, so shop quickly.

How long is a pre-approval valid?

Typically 60 to 90 days. If your home search runs longer, the lender re-verifies your finances and reissues the letter.

How much house can I get pre-approved for?

Lenders typically cap your total debt at 36% to 43% of income using your debt-to-income ratio, which determines the maximum loan — but buy based on your own comfortable budget, not the maximum.

Run your own numbers first on the HomeMath mortgage calculator so you know exactly what payment to expect before a lender tells you what you qualify for.