7 factors mortgage lenders review when assessing your application

Applying for a mortgage involves more than choosing a property and agreeing a price. Lenders use a structured assessment to understand whether the mortgage is affordable for you and manageable for them if circumstances change.

While each lender has its own approach, most mortgage decisions are influenced by similar core factors. Here are seven of the most common areas lenders review.

1) Income and employment stability

Lenders need confidence that your income is reliable enough to meet the mortgage repayments now and in the future.

They typically consider:

• How long you’ve been in your current job (and whether you’re past any probationary period)
• Whether your employment is permanent, fixed-term, or contract-based
• Whether your income is consistent (for example, commission or variable bonuses)

If you’re self-employed, lenders often look for evidence that your earnings are stable over time. This may involve reviewing recent accounts and supporting documentation.

2) Credit history

Your credit report helps lenders understand how you’ve managed credit commitments in the past.

They may look for:

• Late or missed payments
• County Court Judgments (CCJs)
• Bankruptcy or Individual Voluntary Arrangements (IVAs)

A less-than-perfect credit history doesn’t automatically rule out a mortgage, but it can affect which lenders are willing to consider your application and the terms you may be offered.

3) Existing debt and monthly commitments

Mortgage affordability isn’t assessed in isolation. Lenders review your current financial commitments to understand what’s left after your outgoings.

This can include:

• Loan repayments
• Credit card minimum payments
• Other regular debt obligations

If your existing debts are high, it may reduce the amount you can borrow. In some cases, reducing balances before applying can improve the overall affordability picture.

4) Regular outgoings beyond debt

In addition to debts, lenders may consider other ongoing costs that affect your day-to-day finances.

Depending on your circumstances, this could include:

• Child maintenance or childcare costs
• Household bills and essential living expenses
• Other commitments that are clearly recurring

The aim is to ensure the mortgage repayment fits realistically within your broader budget.

5) Deposit size and available equity

Your deposit is a key part of the lender’s risk assessment. It shows you have funds available and reduces the loan-to-value (LTV) of the mortgage.

In general terms:

• A larger deposit usually means lower LTV
• Lower LTV can make the mortgage easier for lenders to approve

Some buyers use alternative routes to fund a deposit, but lenders will still want to understand the source and structure of the funds.

6) Property value (and how it supports the mortgage)

Lenders assess whether the property is worth the amount you’re paying, because the property is the security for the loan.

They will typically rely on a valuation process to confirm:

• The property’s market value
• Whether the property type and condition are acceptable

If a property is unusual, has restrictions, or presents resale challenges, some lenders may be more cautious. This is one reason why lender appetite can vary between property types.

7) Your age and the mortgage term

Most lenders want the mortgage to be repaid within a timeframe that aligns with your working life and retirement plans.

They commonly consider:

• Your age at the start of the mortgage
• The length of the term you choose
• Whether the repayment strategy remains credible if your income changes

If you’re aiming for a longer term, or you’re close to retirement, lenders may require additional information to understand how repayments will be managed.

How these factors work together

Mortgage decisions are rarely based on one single element. For example:

• Strong income and stable employment may help offset higher outgoings
• A larger deposit can reduce lender risk even if other factors are less straightforward
• A clear credit history can support affordability where debt levels are manageable

Understanding what lenders review can help you present a complete application and reduce avoidable issues during the assessment process.

Important notes

• This information is for general guidance and does not constitute financial advice.
• Your home may be repossessed if you do not keep up repayments on a mortgage or other loans secured on it.