What is a mortgage offer?

What is a mortgage offer?

A mortgage offer is the formal document from your lender confirming they’re willing to lend you a specific amount of money to buy a particular property, on specific terms.

It’s an important milestone in the home-buying process, but it’s not the same as completion. Until contracts are exchanged, there are still steps to go through—and the offer can be withdrawn or changed if key details no longer match what the lender assessed.

Key things to know about a mortgage offer

What it means

A mortgage offer usually confirms that your application has been approved following the lender’s checks, which typically include:

• credit assessment
• affordability assessment
• a property valuation

When you receive it

You generally receive a mortgage offer after you’ve submitted your full application and the lender has completed the valuation and underwriting process.

How long it takes

Timelines vary between lenders and depend on factors such as how quickly a valuation is arranged and how straightforward the application is. Some borrowers receive their offer sooner than others.

How long it lasts

Most mortgage offers are valid for a limited period—commonly around three to six months—though this can vary by lender and by product.

Your offer will show an expiry date (and sometimes a “complete by” deadline). Planning around that date is essential, because delays in the purchase process can put you at risk of the offer expiring.

Is it guaranteed?

A mortgage offer is a strong indication that the lender is prepared to proceed. However, it can be withdrawn if circumstances change significantly or if information provided during the application no longer matches what the lender assessed.

What is included in a mortgage offer?

Mortgage offers are detailed documents. They set out the terms and conditions of the loan, including the key information below.

Loan amount and property details

You’ll see:

• the amount the lender is prepared to lend
• the address of the property the offer is for

Mortgage type and structure

Your offer will confirm the mortgage type you applied for, such as a fixed-rate or variable-rate mortgage, and how the loan will work.

Interest rate and payment information

Expect to find:

• the interest rate
• the monthly payment amount
• the term length (how long you’ll be repaying)

Repayment method

Your offer will specify whether you’re repaying:

• capital and interest, or
• interest-only (where applicable)

Fees and charges

Your offer will list relevant costs, which may include product fees, valuation-related charges, and details about early repayment.

Conditions and requirements

Many offers include conditions you must meet for the mortgage to proceed. These can relate to the property, the completion process, or other lender requirements.

How do you get a mortgage offer?

A mortgage offer is issued as part of the full mortgage application process.

In many cases, the journey looks like this:

1. mortgage in principle (often used early to understand borrowing potential)
2. choosing a property and making an offer
3. submitting a full application
4. lender valuation and final checks
5. receiving the formal mortgage offer

Mortgage in principle vs mortgage offer

A mortgage in principle (MIP) is an initial indication of how much a lender may be willing to lend. A formal mortgage offer is the lender’s decision to provide a specific loan amount for a specific property, subject to the offer terms and completion requirements.

How long does it take to receive a mortgage offer?

There’s no single answer, because lender processing times and valuation scheduling can differ. In practice, many borrowers receive their offer within a few weeks after submitting the full application.

If you’re working to a tight purchase timeline, it’s worth keeping the process moving—especially around arranging valuations and responding promptly to lender or broker queries.

How long does a mortgage offer last?

A mortgage offer typically lasts for a set period (often three to six months), but the exact duration depends on the lender and the product.

Your offer will clearly state:

• the expiry date, and/or
• the deadline by which completion must take place

If your purchase is delayed—whether due to conveyancing, survey findings, or other factors—you may need to consider what happens next before the expiry date.

What happens if your mortgage offer expires?

If your mortgage offer expires, the lender may no longer be willing to proceed on the original terms. This can happen if completion doesn’t take place in time.

Common reasons for expiry

Mortgage offers may expire due to delays in:

• conveyancing and legal work
• new-build completion timelines
• resolving issues found during surveys or legal checks

Extending an offer

Some lenders may allow an extension, often for a limited additional period. Whether this is possible depends on the lender and the circumstances, and it’s usually best to raise the issue as early as possible rather than waiting until the last moment.

Reapplying for a new offer

If an extension isn’t available or the expiry date has passed, you may need to reapply. That can mean:

• new credit and affordability checks
• a fresh valuation (depending on the lender)
• potentially different terms and costs

What happens after a mortgage offer is issued?

Once you receive your mortgage offer and you’re comfortable with the terms, the next stage is moving the purchase towards exchange of contracts and completion.

In most cases, you’ll need to:

• formally accept the mortgage offer with the lender
• provide any required documentation
• coordinate with your solicitor or conveyancer so the legal process can continue

It’s also important to remember that the lender may still review or require updates if there are changes that affect the assessment of the mortgage.

Can a mortgage offer be withdrawn?

While it’s not the most common outcome, a mortgage offer can be withdrawn before completion.

This can happen if, for example:

• your financial circumstances change materially
• there are issues with the property identified during surveys or legal checks
• information provided in your application is found to be inaccurate
• the mortgage offer expires

Practical steps to protect your position

To help reduce the risk of delays or complications, it helps to:

• keep your solicitor and lender/broker informed of any relevant changes
• monitor the expiry date and completion timeline
• ensure details in your application remain accurate throughout the process
• respond quickly to requests for information or documentation

Mortgage offers and remortgaging

Although the term “mortgage offer” is often associated with buying a home, it also applies to remortgaging. In a remortgage, the new lender issues an offer confirming the terms of the new mortgage deal, subject to the required conditions and completion steps.

Summary

A mortgage offer is the lender’s formal decision to lend a specific amount for a specific property, on defined terms. It contains key details about the loan, payments, fees, and conditions. The offer usually has a limited validity period, so delays can matter. If circumstances change or the offer expires, the lender may withdraw it or require a new application.