Mortgages for people on zero-hour contracts

Getting a mortgage on a zero-hour contract

If you’re employed on a zero-hours contract, it’s understandable to worry that a lender will see your income as unpredictable. In many cases, a residential mortgage may still be possible—but your application is usually assessed around how reliably your earnings can be evidenced over time.

With zero-hours contracts, lenders typically look for a clear picture of:

• your employment continuity
• your working pattern and earnings history
• the proof of income you can provide

When your income varies, the “strength” of your application often comes down to how well your payslips and bank activity support a consistent, explainable trend.

What is a zero-hours contract?

A zero-hours contract is an employment arrangement where your employer does not guarantee a minimum number of hours. Work is offered as and when it’s available.

For mortgage purposes, the key point is that your income may fluctuate. That doesn’t automatically prevent you from borrowing, but it often means lenders take a more cautious approach when deciding how much income they can use for affordability.

Can you get a mortgage on a zero-hours contract?

It may be possible, depending on the lender and your circumstances. While each lender has its own rules, zero-hours contract applications commonly come down to whether the lender is satisfied that:

• your employment is genuine and ongoing
• your earnings show a pattern they can reasonably assess
• you can provide suitable documentation

Even where zero-hours income is accepted, lenders may use a more conservative approach than they would for a fixed-salary role.

What lenders usually check

Although criteria vary, most lenders focus on three themes.

1) Employment history and continuity

Lenders want confidence that your situation isn’t temporary. They may consider:

• how long you’ve been working on zero hours
• whether you’ve been in the same job or a similar role
• whether your employment appears stable within your industry

In many cases, a longer and steadier employment history makes it easier to show that your income pattern is not just short-term.

2) Working patterns over time

Because hours can change, lenders often review your actual earnings and hours worked across recent months. They may look for whether:

• your income has been broadly consistent
• there are significant dips, gaps or sudden changes
• your working pattern appears stable, improving, or declining

If your earnings have reduced over time, lenders may be less willing to rely on earlier higher figures.

3) Proof of income

You should expect to provide evidence that supports your income pattern. Common examples include:

• recent payslips (covering the period the lender will assess)
• tax year evidence where available (for example, a P60)
• sometimes additional documentation if your income changed materially

The exact document pack can vary by lender and by how your earnings have behaved.

How lenders may calculate your income

Mortgage affordability is based on the income a lender is prepared to use. With zero-hours contracts, the figure used can differ between lenders.

In practice, lenders may use approaches such as:

• taking an average of earnings over the period covered by your evidence
• using a more recent set of payslips as a reference point
• considering a longer-term history if it supports a stable pattern

Because these methods can produce different results, two applicants with similar gross earnings may be assessed differently depending on the lender’s underwriting approach and the strength of their documentation.

Deposit and LTV: why it can matter more

For many zero-hours contract applicants, deposit size can be particularly important. When income is variable, lenders may be more cautious about risk.

A larger deposit can help by:

• reducing the overall loan amount
• supporting a lower loan-to-value (LTV) position
• improving the match with lenders that apply more conservative affordability assumptions

How much you may be able to borrow

Your borrowing potential depends on affordability, and affordability depends on the income figure a lender is willing to use.

With zero-hours contracts, the amount considered may reflect:

• your recent earnings trend
• how consistent your hours have been
• the quality and completeness of your evidence
• the lender’s approach to averaging or projecting income

As a result, the same household income can lead to different outcomes depending on underwriting method and the supporting paperwork.

Application timing and avoiding unnecessary delays

A zero-hours contract mortgage application can be smoother when your evidence is prepared early. Delays are more likely when documents are missing or when the application doesn’t clearly reflect your employment and earnings history.

A practical way to reduce friction is to ensure your application is consistent and well evidenced, for example:

• having payslips available that cover the period the lender will assess
• being ready to explain any gaps or significant changes in hours
• ensuring employment details align across the application and documents

Processing times vary by lender and depend on how quickly underwriting can verify the information provided.

First-time buyers on zero-hours contracts

First-time buyers can apply successfully on zero-hours contracts, but the same underwriting themes apply: lenders want confidence in affordability.

For first-time buyers, deposit planning can be especially important because purchase costs and deposit requirements affect the LTV you’re working towards. A clear document pack and an income profile lenders can understand and evidence can help reduce avoidable setbacks.

Zero-hours contracts vs other mortgage types

A zero-hours contract is only one part of your overall financial picture. Lenders may also consider other income sources and how overall household affordability looks—particularly for joint applications.

If you have more than one income stream, the way each source is evidenced can matter as much as the headline amount.

Zero-hours contract mortgage considerations

Is it more expensive to get a mortgage on a zero-hours contract?

Not automatically. Lenders don’t usually set different pricing purely because of the contract type. However, variable income can make lending decisions more selective, which may affect which products you’re offered.

Your deposit, credit history and the strength of your income evidence can all influence the options available.

Can you get a joint mortgage if one person is on a zero-hours contract?

Yes. Joint applications are assessed on combined affordability, but each applicant’s circumstances still matter. If the other applicant has more predictable income and a strong credit profile, it can help strengthen the overall application.

Are interest-only mortgages available with a zero-hours contract?

Interest-only options may be available depending on circumstances and lender criteria. Lenders typically look closely at how the mortgage will be repaid at the end of the term.

With interest-only, lenders often apply additional checks around affordability and the repayment plan.

Will bad credit affect a zero-hours contract mortgage application?

Bad credit can make lending harder regardless of employment type. With variable income, lenders may be even more cautious, so addressing credit issues and improving the overall strength of your application can be particularly important.

What documents are commonly requested?

Most lenders will want evidence of your income pattern. Commonly requested items include:

• payslips covering the period the lender will assess
• tax year evidence where available
• sometimes bank statements to support what’s shown on payslips

If your earnings have changed over time, the lender may ask for additional documentation to understand the reasons and confirm the pattern going forward.

Summary: what improves your chances

While every lender is different, zero-hours contract mortgage applications tend to go more smoothly when you can present an evidence-led picture of your income.

Key factors that often help include:

• a longer and more continuous employment history
• a working pattern that appears stable (or is explainable)
• the ability to provide the right proof of income
• a deposit strategy that supports the LTV you’re aiming for

If your income varies, the goal isn’t to “fit” a standard profile—it’s to help the lender understand your earnings in a way that supports affordability.