Understanding your mortgage offer: what to check

A mortgage offer is a formal document from a lender outlining the terms under which they're willing to lend to you. While receiving an offer is positive news, it's important to review it carefully before accepting.

This guide explains what to look for, common conditions you might encounter, and practical steps to take before you commit.

What is a mortgage offer?

A mortgage offer is a formal document issued by a lender after they've completed their underwriting process. It confirms:

• The amount they're willing to lend
• The mortgage product and interest rate
• The term and repayment structure
• Any conditions that must be met before completion
• Expiry date of the offer

This is different from a mortgage in principle (also called an agreement in principle), which is an early indication based on limited information. A full mortgage offer comes after detailed affordability checks, credit assessment, and property valuation.

Key sections to review in your offer

1) Loan amount and product details

Check that these match what you expected:

• Mortgage amount - the total being lent
• Purchase price - should match your agreed purchase price
• LTV - loan-to-value ratio, calculated from the above
• Product name - the specific mortgage product being offered
• Initial rate - the interest rate during any fixed or discounted period
• Initial period - how long the initial rate applies
• Reversion rate - the rate you'll move to after the initial period
• Product fee - any arrangement fee and how it's being paid

2) Repayment structure

Confirm the repayment details:

• Repayment type - repayment (capital and interest) or interest-only
• Monthly payment amount - what you'll pay during the initial period
• Term length - how many years the mortgage runs for
• Payment frequency - typically monthly

3) Interest rate details

Understand how your rate works:

• Rate type - fixed, variable, tracker, or discounted
• Base rate reference - if it's a tracker, what rate it follows
• Rate margin - any margin added to the reference rate
• Rate floor or cap - if applicable, limits on how low or high the rate can go

4) Conditions to satisfy

Most offers include conditions that must be met before completion. Common categories include:

• Documentary evidence - payslips, bank statements, proof of deposit source
• Property-related conditions - specific repairs, insulation, or remedial work
• Legal requirements - certain searches or indemnities
• Financial conditions - clearing specific debts or providing further affordability evidence

Common offer conditions explained

Property-related conditions

These relate to the property itself rather than you as the borrower:

Financial conditions

These relate to your financial position:

Legal conditions

These relate to the legal aspects of the purchase:

What the offer expiry date means

All mortgage offers have an expiry date, typically between 3 to 6 months from issue. This means:

• Completion must happen before the expiry date, or the offer will lapse
• If your purchase is delayed, you may need to request an extension or re-apply
• Extensions aren't guaranteed - the lender may reassess your application

If you're approaching the expiry date and completion isn't imminent, speak to your broker or solicitor as soon as possible.

Before accepting your offer

1) Review all conditions carefully

Make sure you understand what's required and that you can reasonably meet each condition. If anything is unclear, ask your solicitor or broker for clarification.

2) Check the monthly payments are affordable

Use the figures in the offer to confirm the payments fit your budget, not just now but also:

• When the initial period ends and you move to the reversion rate
• If interest rates rise (for variable or tracker products)
• If your circumstances change (job, family, etc.)

3) Understand the total cost

Consider:

• Monthly payments over the term
• Total interest payable
• Product fees and arrangement costs
• Early repayment charges (if applicable)
• Any other associated costs

4) Confirm with your solicitor

Your solicitor will review the offer as part of the conveyancing process. They should:

• Check for unusual conditions
• Confirm the offer aligns with the purchase agreement
• Ensure the lender's requirements are satisfied
• Advise on any implications for the transaction

Common mistakes to avoid

Not reading the full offer

It's tempting to focus on the headline rate, but the conditions and fine print matter. Take time to read everything.

Ignoring conditions

Conditions aren't optional - they must be satisfied before completion. Ignoring them can delay or derail your purchase.

Not considering the reversion rate

The initial rate may look attractive, but check what happens after it ends. The reversion rate significantly affects long-term affordability.

Assuming expiry extensions are automatic

If you need more time, request an extension before the expiry date. Don't assume it will be granted.

Not asking questions

If anything in the offer is unclear, ask. Your solicitor, broker, or lender should be able to explain.

What if there are problems with your offer?

The offer amount is lower than expected

This could be due to:

• Affordability assessment findings
• Property valuation coming in lower than purchase price
• LTV restrictions
• Changes in your circumstances since application

Options include:

• Increasing your deposit
• Renegotiating the purchase price
• Looking at alternative properties or lenders

Conditions seem unreasonable or impossible

If you can't meet the conditions:

• Speak to your broker about whether the conditions are negotiable
• Consider alternative lenders if the conditions are deal-breakers
• Allow time to satisfy the conditions if possible

The offer is about to expire

If completion is delayed:

• Contact the lender immediately to request an extension
• Be prepared for the lender to reassess your application
• Have a backup plan in case the extension is refused

Summary: key takeaways

• A mortgage offer is a formal commitment from a lender, subject to conditions
• Review the offer carefully - check loan amount, rate, term, and conditions
• Understand all conditions and confirm you can satisfy them
• Note the expiry date and ensure completion happens before it lapses
• Confirm monthly payments are affordable now and in the future
• Work with your solicitor to ensure the offer aligns with your purchase
• If anything is unclear, ask questions before accepting

Need more help?

If you have questions about your mortgage offer, speak to your solicitor or broker. For more general guidance, explore our other first-time buyer resources:

• First-time buyer FAQs
• First-time buyer eligibility
• Mortgage calculator

Important note

Your home may be repossessed if you do not keep up repayments on your mortgage.