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A Mortgage for Singles and Couples

Author: RealtyTM Team Verified Updated: 22 JulyJuly7 2026 · 3 min read
Kredyt hipoteczny dla singla i pary

This article is for informational purposes only and does not constitute legal, tax or financial advice within the meaning of applicable law. Consult a licensed advisor before making any decision.

Whether you apply for a mortgage on your own or together with a partner has a big impact on your credit capacity, the maximum loan amount and your responsibility for the commitment. Each of these scenarios has its own specifics.

Understanding the differences between a mortgage for a single person and a mortgage for a couple helps you plan a property purchase better and avoid misunderstandings, especially when a joint commitment is taken on by people who are not married.

Key takeaways
  • Credit capacity depends on income, commitments and living costs — it is calculated differently for one person and for two.
  • A couple applying jointly usually has higher capacity, because the bank combines incomes, but it also accounts for higher household costs.
  • A single person finances the loan on one income, which usually requires higher individual capacity or a lower loan amount.
  • A joint loan means joint and several liability for the whole commitment, worth thinking through especially outside marriage.

How the bank calculates credit capacity

Credit capacity is an assessment of whether you are able to repay a loan of a given size. The bank compares income on the one hand with commitments and living costs on the other. The greater the surplus of income over spending, the higher the capacity and the larger the potential loan.

The assessment is also affected by the credit history visible in BIK, the stability and source of income, and the number of dependants. The same rules apply regardless of whether one person or two are applying, but the effect differs depending on the configuration of income and spending.

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A mortgage for a couple — combining incomes

When a couple applies for a loan, the bank usually combines the incomes of both applicants, which mostly increases credit capacity and allows for a higher loan amount. This is one of the main advantages of a joint commitment, especially when buying a larger property.

You must remember, however, that the bank also takes into account the higher living costs of a larger household and all the commitments of both partners. If one person has numerous loans or burdens, this can lower the joint capacity, despite two sources of income.

A mortgage for a single person — one source of income

A single person finances the loan on their own capacity, based on a single income. This usually means the need for higher individual capacity or accepting a lower maximum loan amount compared with a couple earning a similar amount per person.

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The advantage is full decision-making independence and no dependence of your capacity on another person's financial situation. A single person can strengthen their position with a higher down payment, by reducing other commitments before applying and by ensuring a good credit history. In some situations adding an additional borrower, for example a family member, is also considered.

Responsibility for a joint loan

With a joint loan the question of responsibility is crucial. As a rule, co-borrowers are jointly and severally liable for the whole commitment, meaning the bank can pursue repayment from each of them in full, regardless of any internal arrangements between them.

For a married couple this is natural, but when a joint loan is taken on by people who are not married, it is worth thinking ahead about scenarios such as a break-up or financial problems for one side. A good practice is to agree on rules regarding ownership of the property and repayment, to avoid conflicts in the future.

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Summary: matching the form to your life situation

The choice between a mortgage for a single person and a mortgage for a couple should follow from your income and life situation. A couple usually gains higher capacity by combining incomes but takes on joint and several liability for the entire commitment. A single person acts independently, which usually requires higher individual capacity. Whatever the form, it is worth ensuring a good credit history, a reasonable down payment and the reduction of other commitments before applying.

Frequently asked questions

Does a couple always have higher credit capacity than a single person?
Usually yes, because the bank combines both applicants' incomes. It also accounts for higher living costs and all the commitments of both people, though, so numerous loans of one partner can lower the joint capacity.
Can a single person get a mortgage?
Yes. A single person finances the loan on their own capacity based on one income. They can strengthen their position with a higher down payment, the reduction of other commitments and a good credit history, and sometimes by adding an extra borrower.
Who is responsible for repaying a joint loan?
Co-borrowers are usually jointly and severally liable for the whole commitment. The bank can pursue repayment from each of them in full, regardless of internal arrangements. This matters especially for people who are not married.
What happens to a couple's loan on a break-up?
The commitment towards the bank continues and both sides remain responsible for it. Solutions include, for example, repaying the loan, one person taking over the debt with the bank's consent, or selling the property. It is worth agreeing the rules in advance.
RealtyTM Team
RealtyTM Team
Editorial

The RealtyTM editorial team prepares guides based on Polish market data and current regulations. Content is reviewed by our subject editors.

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