How to make co-living with parents or grown-up kids work financially

Living at home as an adult is becoming far more common in the UK, and for many families, it’s less about choice and more about necessity. Rising rents, high house prices, and general living costs have made moving out harder than ever.

Recent data by the Office of National Statistics (ONS) shows that more than one in three men aged 20 - 35 now live with their parents, with the number steadily increasing for both men and women.

While multi-generational living can ease financial pressure, it works best when there’s a clear plan. Without structure, it can lead to confusion, resentment, or missed financial opportunities.

The good news is that with a few practical steps, families can turn co-living into a setup that benefits everyone.

Why more young adults are staying at home

The main driver is simple, affordability. Housing costs, whether buying or renting, have surged, making it difficult for young adults to live independently.

For many, staying at home offers a chance to save money, pay off debt, or build financial stability before taking the next step.

But saving money only works if there’s intention behind it.

For parents: creating a fair and productive setup

If your adult children are living at home, it helps to treat the arrangement as a stepping stone, not a permanent safety net.

Charge a reasonable rent

It’s fair to ask for a contribution. Charging rent helps cover increased household costs and encourages your child to understand real-world expenses. It doesn’t need to be market rate, but it should feel meaningful.

Hold regular money conversations

Sit down together and go through the household budget, including food, utilities and maintenance. Being transparent avoids misunderstandings and sets clear expectations.

Agree on how costs are shared

Decide whether expenses are split evenly, based on income, or assigned by category, for example, one person covers energy bills while another pays for the food. What matters is clarity and consistency.

Set a timeline

If the arrangement is temporary, agree on an end date. Whether your child is saving for a deposit or between jobs, having a timeframe keeps everyone focused and motivated.

For adult children: making the most of the opportunity

Living at home can be a financial advantage but only if you use it wisely.

Contribute to the household

Even if your parents don’t ask for full rent, contribute something toward bills and groceries. It builds good habits and shows respect for shared costs.

‘Pay yourself’ if rent is minimal

If you’re not paying much, or anything, set up an automatic transfer into savings each month. Treat it like rent you owe your future self.

Set a clear goal and deadline

Decide what you’re working towards, whether it’s saving a deposit, clearing debt or building an emergency fund. Give yourself a realistic timeframe to get there.

Avoid lifestyle inflation

Saving on rent doesn’t mean spending more elsewhere. It’s easy to let extra cash slip away on takeaways, shopping, or nights out. Stay focused on your long-term goals.

Create and stick to a budget

A simple monthly budget helps you track income, control spending, and identify where you can save more. It gives you confidence that you’re covering essentials while still progressing financially. Check out our guide to how to create a budget to get started, and give our budget planner a try - it’s free and easy to use.

Co-living as adults doesn’t have to feel like a setback. When handled thoughtfully, it can be an effective financial strategy, helping young adults build independence while easing pressure on the whole household.