When applying for a mortgage, one of the key things to consider is how long your mortgage offer lasts. A mortgage offer is the lender’s formal confirmation that they are willing to lend you a specific amount of money to purchase a property. However, this offer doesn’t last forever. Understanding the timeframe of your mortgage offer is crucial to avoid missing out on your dream home or potentially losing your deal altogether.
In this guide, we’ll break down how long a mortgage offer lasts, what affects its validity, and what you can do to make sure you don’t run into issues during the process.

What Is a Mortgage Offer?
A mortgage offer is an official document from your lender that details the terms of the loan they are offering you. It includes:
The amount you can borrow
The interest rate
The repayment terms
Any conditions attached to the offer, such as the need for a property valuation or insurance
This offer is valid for a specific period, typically ranging from 3 to 6 months. However, the exact duration depends on the lender and the type of mortgage you’re applying for.
How Long Does a Mortgage Offer Typically Last?
In the UK, mortgage offers usually last between 3 and 6 months, although the exact time can vary depending on your lender and circumstances. Here are some key points to understand:
Standard duration: Most mortgage offers are valid for 3 months. This gives you enough time to finalise your home purchase and complete all the necessary paperwork.
Extension possibilities: If you’re unable to complete your purchase within the offer’s validity period, many lenders may be willing to extend the offer for an additional few months. However, you may need to reapply for the mortgage or update certain details, such as your financial situation or the property valuation.
Changes to circumstances: If your financial situation or the property value changes, the lender may reassess your mortgage offer. This could result in a new offer with different terms.
What Factors Affect the Duration of a Mortgage Offer?
Several factors can influence how long your mortgage offer lasts. Understanding these factors can help you plan and avoid delays in the home-buying process.
1. Type of Mortgage
Fixed-rate mortgages: Fixed-rate mortgages may come with a longer offer validity period, typically around 6 months. This is because the lender is guaranteeing a specific interest rate for the duration of the mortgage.
Variable-rate mortgages: Variable-rate mortgages may have shorter offer durations, as the interest rate can fluctuate, meaning the lender may need to reassess the terms more frequently.
2. The Lender's Policy
Different lenders have different policies regarding how long their mortgage offers are valid. It’s essential to check the terms of the specific lender you are working with and ask about the validity period of your offer.
3. Your Financial Situation
If there are significant changes to your financial situation, such as a job loss, a drop in income, or new debts, the lender may shorten or withdraw the mortgage offer. Conversely, if your situation improves, you might be able to negotiate a better deal.
4. The Property Market
In a fast-moving property market, lenders may adjust the validity of their offers to reflect current market conditions. This is particularly true for properties that may fluctuate in value due to changes in demand or economic factors.
What Happens If My Mortgage Offer Expires?
If your mortgage offer expires before you’ve completed your purchase, there are a few options available:
1. Request an Extension
If you’re close to completing the purchase but haven’t yet finished all the steps, such as finalising the conveyancing or waiting for a property survey, you can request an extension from your lender. Some lenders will extend the offer by another month or two, but this is not guaranteed.
2. Reapply for a Mortgage
If your offer has expired and an extension isn’t possible, you’ll need to reapply for the mortgage. Depending on how long it has been since your initial offer, you may need to update your financial details and undergo a new credit check. This can potentially lead to changes in the offer, such as a higher interest rate or a different loan amount.
3. Shop Around for a New Deal
If your original mortgage offer expires and you can’t get an extension or reapply with your current lender, it may be a good idea to explore other mortgage deals. If interest rates have changed since your original application, you may find that a new deal works out better for you.
How Can I Ensure My Mortgage Offer Stays Valid?
To avoid issues with an expired mortgage offer, follow these tips:
Act quickly: Try to complete your home purchase as soon as possible to avoid your offer expiring. Plan ahead with your solicitor and estate agent to ensure everything runs smoothly.
Stay in touch with your lender: Keep your lender informed about any delays or changes in your circumstances. If you need an extension, contact them as early as possible.
Review your financial situation: Make sure your financial situation remains stable. Avoid making large purchases or taking on additional debt while your mortgage offer is still valid.
Prepare for contingencies: If your mortgage offer is about to expire and you’re not ready to complete the purchase, start discussing your options with your lender well in advance.
Final Thoughts
Understanding how long your mortgage offer lasts is essential to ensure that you don’t miss out on the chance to buy your new home. While mortgage offers typically last 3 to 6 months, there are several factors that can influence this timeframe, including the type of mortgage, the lender’s policies, and your financial situation.
By acting quickly, staying organised, and communicating with your lender, you can ensure that your mortgage offer remains valid and that the home-buying process goes smoothly.
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