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.
Not sure how children could affect your mortgage application?
Every lender assesses families differently. Some take a more flexible approach to childcare costs and dependants, while others apply stricter affordability rules.
At Kerr & Watson, we help families understand how much they may be able to borrow and match them with lenders suited to their circumstances.
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
Mortgage lenders do not look at income alone when deciding how much you can borrow.
They assess whether the mortgage is affordable by considering your income alongside your financial commitments and household expenditure. This can include childcare costs and the number of financial dependants in your household.
Lenders may also use income multiples as part of their calculations, but the amount available will depend on the lender’s own affordability model and your individual circumstances.
If you are applying for a mortgage with children, lenders may consider:
- Your household income
- The number of financial dependants
- Nursery, childcare or school fees
- Loans, credit cards and other financial commitments
- Child Benefit, Universal Credit or other acceptable benefit income
- Any known changes to your income or expenditure
- Your remaining disposable income after regular expenses
Different lenders calculate affordability in different ways, which means the amount you can borrow can vary between them.
How Children Can Affect Mortgage Borrowing
Two households with the same income will not necessarily be able to borrow the same amount.
For example, a household paying significant monthly nursery fees may have less disposable income than a household with the same earnings but no childcare costs.
Lenders can use actual expenditure or assumptions based on the composition of your household when calculating affordability. This means the number of dependants and your ongoing childcare costs can affect the amount available.
The effect will depend on your overall finances and the lender being considered.
How the Age of Your Children Can Affect Affordability
The age of your children can sometimes be relevant because the costs associated with looking after them can change over time.
For example, a child attending full-time nursery may have significant monthly childcare costs, while those costs may reduce once they start school.
Older children may still be treated as financial dependants if you continue to support them, whereas financially independent adult children may not be included as dependants.
The way this is assessed varies between lenders.
How Childcare Costs Impact Mortgage Applications
Childcare can be one of the largest regular expenses for families and can therefore have a significant effect on mortgage affordability.
This might include:
- Nursery fees
- Childminder costs
- After-school clubs
- Regular paid childcare
- Private school fees
Lenders may ask for details of these costs or include an allowance for childcare within their affordability calculations.
Higher childcare costs can reduce the amount available to borrow, but the effect varies considerably between lenders.
What if Childcare Costs Will End Soon?
If your childcare costs are expected to reduce or end, some lenders may be able to take this into consideration.
For example, your child may shortly be starting school and your nursery fees may therefore reduce significantly.
Whether a lender can use the lower future cost will depend on its criteria and the evidence available. It should not be assumed that every lender will ignore an existing childcare commitment simply because it is expected to end.
Does Childcare Always Reduce How Much You Can Borrow?
Not necessarily.
The effect of childcare costs depends on the lender’s affordability model and your wider financial circumstances.
Where childcare costs are low, provided by family without a regular cost, or are evidenced as reducing in the near future, the effect on affordability may be different.
This is one reason the maximum mortgage available can vary between lenders.
Future Planning: Expanding Your Family
If you are planning to expand your family, it is sensible to consider how your finances could change before committing to a mortgage.
A lender’s affordability assessment will be based on the information relevant to your application, including any known or likely changes to your income or expenditure.
For example, this could include:
- A planned period of maternity, paternity or parental leave
- A temporary reduction in income
- A planned return to work on reduced hours
- Future childcare costs
It is also worth considering these changes yourself when deciding how much you are comfortable borrowing, particularly if household income may fall or expenses are likely to increase.
Getting a Mortgage While on Maternity or Parental Leave
Being on maternity, paternity, adoption or parental leave does not automatically prevent you from getting a mortgage.
However, lenders have different ways of assessing income during parental leave.
Depending on the lender and your circumstances, they may consider your expected return-to-work income rather than relying solely on the income you are receiving while on leave.
You may be asked to provide evidence such as:
- Confirmation of your parental leave arrangements
- Your expected return-to-work date
- Your salary and working hours when you return
- Payslips from before or during your parental leave
- Details of future childcare costs
If you intend to return to work on reduced hours, the lender will normally need to take the resulting income into account.
Because lender criteria varies, being on parental leave can make lender selection particularly important.
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.
Find out Your Options
Can Self-Employed Parents Still Get a Mortgage?
Yes. Being Self-employed and having children does not prevent you from getting a mortgage.
Lenders will assess your self-employed income using their normal criteria, which may include accounts, tax calculations, tax year overviews or other evidence depending on how your business is structured.
The number of years’ trading history required also varies. Many lenders prefer an established trading history, although there are lenders that can consider applicants with a shorter period of accounts.
If maternity, paternity or parental leave has caused a temporary change in your earnings or business performance, the lender may need to understand the circumstances and whether your income is expected to continue.
At Kerr & Watson, we can review both your self-employed income and family circumstances before identifying lenders whose criteria are suitable.
Child Benefit and Universal Credit
Some parents receive income such as Child Benefit or Universal Credit and may want to know whether this can be included when calculating mortgage affordability.
Some mortgage lenders will accept certain benefit income, including Child Benefit and, in some circumstances, Universal Credit.
However, lenders have different rules about:
- Which benefits they accept
- How much of the income they will use
- How long the benefit is expected to continue
- What evidence is required
- The age of any children linked to the benefit
As a result, benefit income that is accepted by one lender may be treated differently by another.
Do Lenders Accept Child Benefit as Income?
Yes, some mortgage lenders accept Child Benefit as income when assessing affordability.
The amount that can be used and any conditions attached to it will depend on the lender.
Some lenders also accept certain elements of Universal Credit and other benefit income, subject to their individual criteria.
If benefit income is needed to support the amount you want to borrow, checking the lender’s criteria before applying can be particularly important.
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 does not prevent you from getting a mortgage, but preparing your finances and documents can make the application easier.
Before applying, it can help to:
- Check your credit reports for errors or unexpected information
- Have up-to-date evidence of your income available
- Provide accurate details of childcare and other regular expenditure
- Provide details of any Child Benefit, Universal Credit or other benefit income you want the lender to consider
- Obtain confirmation of your return-to-work arrangements if you are on parental leave
- Make sure any changes to your income or working hours are explained clearly
A mortgage broker can also compare how different lenders are likely to assess your circumstances before an application is submitted.
Why Protection Can Be Important When You Have Children
Having children can make financial protection particularly important because other people may depend on your income.
Life insurance, critical illness cover and income protection are not normally requirements for obtaining a residential mortgage, although buildings insurance will usually be required for a mortgaged property.
Depending on your circumstances, you may want to consider:
- Life insurance to provide financial support if you die
- Critical illness cover to provide a lump sum following diagnosis of a specified serious illness covered by the policy
- Income protection to provide an income if illness or injury prevents you from working
The type and amount of protection suitable for you will depend on your mortgage, income, existing cover, family circumstances and budget.
As part of our advice process, we can review your protection needs alongside your mortgage arrangements.
Mortgage Case Studies for Families with Children
We have helped families with children arrange mortgages where childcare costs, dependants and other household commitments formed part of the lender’s affordability assessment.
The case studies below show real examples of customers we have helped and demonstrate how factors such as childcare costs, income, self-employment, affordability and lender criteria can affect the mortgage options available.
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?
Yes, some lenders accept Child Benefit as income when assessing mortgage affordability. The amount they will use and any conditions attached to it vary 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.

















