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GlossaryMortgageQualifying

Mortgage pre-approval

2 min read
Short answer
A mortgage pre-approval is a lender's conditional statement of how much it is prepared to lend, issued after reviewing credit, income and assets. It carries real weight with sellers because verification has actually happened. It is not a guarantee — the property still has to appraise and underwriting still has to clear — but it is substantially more than a pre-qualification.

A mortgage pre-approval is a lender's conditional commitment to lend a stated amount, issued after it has actually looked at the borrower's credit, income and assets.

Sellers ask for one because it means something. An offer backed by a pre-approval has already cleared the questions that most often kill a deal.

Pre-approval versus pre-qualification#

The two words sound interchangeable and are not.

A pre-qualification is based on what the borrower says. Income, debts and assets are stated, not verified, and the resulting figure is an estimate. It takes minutes and it is worth roughly what it costs.

A pre-approval involves a credit pull and documentation — pay stubs, tax returns, bank statements — reviewed by the lender. It takes days and it carries weight.

In a competitive offer, the difference is the difference between a document a seller's agent takes seriously and one they do not.

What it does not cover#

Everything about the property.

Pre-approval assesses the borrower. It says nothing about whether the house you eventually choose will appraise at the contract price, whether its title is clear, whether its condition satisfies the loan programme, or whether the association's finances pass review on a condominium.

Those are all live risks that arrive after an offer is accepted, and a pre-approval provides no protection against any of them.

Keeping it valid#

The pre-approval is a snapshot of a moment, and it decays.

Credit reports and income documents go stale after roughly sixty to ninety days, and lenders will ask for fresh ones. That is routine and quick for a buyer who is actively looking.

More important is not disturbing the underlying facts. New debt, a job change, a large untraceable deposit, or a missed payment on anything can each change the analysis the pre-approval was built on — and the lender will re-check before closing.

The number is a ceiling, not a target#

A pre-approval says what a lender is willing to risk. It does not say what is comfortable to live with.

The calculation behind it uses gross income and ignores childcare, commuting, medical costs and everything else that consumes a household's actual money. Buying at the top of a pre-approval means qualifying at the edge of what an underwriting model tolerates — with no room for the property tax increase that will arrive within a couple of years.

The buyers who get into trouble are rarely the ones who were refused. They are the ones who were approved for exactly as much as they asked for.

Common questions

How long does a pre-approval last?
Typically sixty to ninety days, because the credit report and income documents behind it go stale. Renewing usually means supplying updated documents rather than starting again, and lenders do it routinely for active buyers.
Does pre-approval hurt my credit?
It involves a hard inquiry, which has a small and short-lived effect. Multiple mortgage inquiries within a short shopping window are generally treated as one for scoring purposes, so comparing lenders does not multiply the impact.
Can a pre-approval fall through?
Yes. It is conditional on the facts staying as presented and on the property. New debt, a job change, an appraisal below contract price, or a title problem can each undo it. The pre-approval assesses the borrower; it does not assess the house you have not bought yet.
Keep reading
Mortgage pre-qualification
An informal estimate of what a borrower might be able to borrow, based on figures they state rather than documents a lender has verified.
Underwriting
The lender's assessment of whether to make a loan, weighing the borrower's income, credit, assets and the property itself against the risk of loss.
Debt-to-income ratio
The share of a borrower's gross monthly income consumed by debt payments, used by lenders as the primary test of whether a loan is affordable.