Does Having Children Affect a Mortgage

Can having children affect how much you can borrow for a mortgage?

Yes — lenders include childcare costs, dependants, and household spending within affordability assessments, which can reduce borrowing potential in some cases.

Buying a home with children can feel more complicated, especially when lenders take childcare costs, dependants, and household spending into account.

The good news is that having children does not stop you getting a mortgage, but it can affect how much you are able to borrow.

How having children affects mortgage affordability

Having children is one of life’s most rewarding experiences, but it’s no secret that they come with financial responsibilities.

Mortgage lenders assess whether you can comfortably afford monthly repayments, and part of that involves looking at your outgoings.

Children bring additional costs, such as childcare, food, clothing, education, and other day-to-day expenses. These are factored into a lender’s affordability assessment.

While children are not seen as a “negative” in your application, they do represent a financial commitment. That’s why lenders will typically ask whether you have dependents and how many, and they’ll use this information alongside your income and expenses to determine how much they’re willing to lend you.

Can you still get a mortgage if you have children?

Yes — having children does not stop you getting a mortgage.

However, lenders will assess:

• Your household income
• Number of dependants
• Your disposable income after expenses

This means families with children may sometimes borrow less than applicants with the same income but fewer financial commitments.

How lenders assess affordability when you have children

In the past, lenders relied mainly on income multiples, typically 3 to 5 times your salary, to decide how much you could borrow. Today, things are more nuanced.

Affordability assessments now consider your total financial picture, income, debts, spending habits, and yes, your children.

If you’re applying for a mortgage with dependents, the key areas lenders assess include:

• The number of children you have
• Your monthly childcare or school-related costs
• Whether you’re receiving child benefit or tax credits
• Changes to your working hours due to parenting
• How much disposable income you have after expenses

Each lender has their own criteria, and that’s where tailored advice from Kerr & Watson will help.

How children can reduce mortgage borrowing

While income multiples are often mentioned (such as 3–5x salary), modern mortgage decisions rely heavily on affordability modelling.

This means two families earning the same income may be offered different loan amounts depending on:

• Number of dependants
• Age of children
• Ongoing childcare costs
• Existing financial commitments

For example, a household earning £60,000 with no children may be offered more than a household earning £60,000 with two children in full-time childcare.

This is because lenders assess real disposable income, not just gross salary.

Understanding which lenders apply stricter stress testing, and which take a more flexible view, can significantly affect how much you’re able to borrow.

How Age of Children Can Influence Affordability

Not all dependants are treated the same way in affordability models. Lenders may assess differently depending on whether your children are:

• In full-time nursery
• At primary or secondary school
• In further education
• Financially independent adults

Younger children typically mean higher childcare costs, while older children may result in reduced or no childcare expenses.

If childcare costs are due to end within the next 6–12 months, some lenders may take this into account when assessing affordability, but this varies by lender.

This is why timing can sometimes make a difference when applying for a mortgage.

How Childcare Costs Impact Mortgage Applications

Childcare can be one of the largest expenses for parents, especially during the early years. Whether you’re paying for nursery, after-school clubs, or full-time childcare, these costs are considered part of your regular outgoings.

Lenders typically request a breakdown of these costs, especially if they significantly reduce your disposable income. The higher your monthly childcare bill, the lower the mortgage amount you may be offered.

However, not all lenders treat childcare costs in the same way. Some may discount them entirely if they’re set to end soon, for example, if your child starts school in September.

Others may take a more generous approach if grandparents provide care.

What if childcare costs will end soon?

Some lenders may take future reductions in childcare costs into account.

For example, if nursery fees will end within the next 6–12 months due to a child starting school, certain lenders may assess affordability more favourably.

This varies significantly between lenders.

Does childcare always reduce how much you can borrow?

Not always.

Some lenders take a more flexible view of childcare costs, especially where:

• Costs will reduce soon
• Family members provide childcare
• Children are close to starting school
• Disposable income remains strong after expenses

This is why lender choice can significantly affect affordability.

Future Planning: Expanding Your Family

If you are planning to have more children, lenders generally assess affordability based on your current circumstances, not future plans. However, from a financial planning perspective, it’s important to consider:

• Whether your income may reduce temporarily
• Whether childcare costs may increase
• How this could affect future remortgaging

Taking advice before committing to a mortgage can help ensure your repayments remain comfortable even if your family grows.

Getting a mortgage while on maternity leave

If you’re currently on maternity, paternity leave, shared parental leave or planning to go on leave soon, this can impact your mortgage application.

Some lenders may only take your reduced leave income into account, while others are willing to consider your full return-to-work salary if you can provide evidence.

This usually involves:

• A letter from your employer confirming your return date
• Confirmation of your post-leave income and working hours
• Proof of savings to cover repayments during your leave

If you’re planning to return to work part-time, this may lower your overall income, and in turn, affect the loan amount you can access.

Can self-employed parents still get a mortgage?

Self-employed parents often face a few extra hurdles when applying for a mortgage, especially if their income has fluctuated due to maternity or paternity leave.

Most lenders will want to see at least two years’ worth of trading accounts or tax returns, but there are exceptions.

You may need to provide:

• SA302s and tax year overviews
• An accountant’s reference
• Evidence that your business can sustain itself while you take time off

Some lenders are more understanding of temporary drops in income, especially when there’s a clear plan to return to normal operations.

Kerr & Watson has experience in placing self-employed applicants with the right lenders, so don’t let this put you off finding out your options.

Child Benefit and Tax Credits

Many parents receive child benefit, working tax credit, or child tax credit, and you may be wondering if these can be counted as income.

In many cases, yes they can. Some lenders will include a portion (or all) of these benefits as part of your overall income, which could boost your borrowing capacity.

It’s worth noting, though, that there are often limits on how much of this income lenders will consider, and some lenders don’t include it at all. This is where personalised advice is important.

Do lenders accept child benefit as income?

Some lenders will accept child benefit and tax credits as part of your income, while others may ignore them entirely.

This can make a significant difference to affordability calculations, particularly for larger families or applicants on maternity leave.

Why Lender Criteria Matters for Families

Every lender uses different affordability software and assumptions.

Some:

• Apply stricter household expenditure models
• Assume higher living costs per dependant
• Exclude certain benefit income

Others:

• Take a more flexible approach
• Consider confirmed return-to-work income
• Accept child benefit as income

Choosing the right lender for your family’s circumstances can make a meaningful difference to what you’re offered. This is where specialist advice becomes valuable.

Why do some lenders offer more borrowing than others?

Every lender uses different affordability models.

Some lenders are more flexible with:

• Childcare costs
• Benefit income
• Return-to-work income
• Number of dependants

Because of this, the maximum borrowing available can vary significantly between lenders.

Other factors lenders may consider

School fees

Some lenders heavily factor private school fees into affordability, while others take a more flexible approach.

University-aged children

Financially independent adult children may not be treated as dependants.

Living arrangements

Changes to commuting or childcare arrangements may improve affordability.

When might having children affect a mortgage application negatively?

A mortgage application may become more difficult where:

• Childcare costs are very high
• One applicant is on reduced maternity income
• There are multiple dependants and high monthly commitments
• Disposable income is tight after expenses

However, different lenders assess families differently, which is why choosing the right lender is important.

How to improve your chances of mortgage approval

Having children doesn’t have to stand in the way of buying your ideal home. Here are some practical steps to help your mortgage application:

• Provide clear, up-to-date records of your income and outgoings
• Ensure your credit score is in good shape
• Be transparent about any benefits or tax credits you receive
• Speak to your employer about a return-to-work letter, if applicable
• Work with an experienced mortgage broker who understands your needs

We take the time to understand your personal and family circumstances and match you with lenders who are suited to your situation.

Why protection becomes more important when you have children

When you have children, mortgage protection becomes even more important.

Lenders don’t require you to take protection policies (although some will discuss it), but as a family, you may want to consider:

• Life insurance to repay the mortgage
• Income protection if one parent cannot work
• Critical illness cover if one parent is diagnosed with a serious illness.

If one income supports the household, protecting that income is crucial.

As part of our advice process, we also look at how to safeguard your family’s home, not just secure the mortgage.

Frequently asked questions about children and mortgages

Does having children reduce how much you can borrow?

Potentially yes, because lenders include childcare and living costs within affordability assessments.

Can I get a mortgage while on maternity leave?

Yes, many lenders will consider applications during maternity leave, particularly where there is evidence of returning to work.

Do lenders count child benefit as income?

Some do and some do not. Criteria varies between lenders.

Will childcare costs stop me getting a mortgage?

Not necessarily, but high childcare costs can reduce affordability and borrowing potential.

Conclusion

So, does having children affect a mortgage? It can, but it doesn’t have to stop you.

The key lies in how your finances are assessed, your individual situation and the lender that you approach.

Whether you are on maternity leave, receiving child benefit, or managing high childcare costs, we will help you find lenders suited to your circumstances.

Need help understanding how children could affect your mortgage?

At Kerr & Watson, we help families navigate affordability assessments and find lenders suited to their circumstances.

Speak to us today for tailored mortgage advice.