HOW do you deal with adult children returning to live in the family home - without leaving too big a dent in your own finances? Vicky Shaw finds out.

If you're a parent wondering if your grown-up child will ever manage to fly the nest, you're not alone.

It's estimated more than a quarter of 20 to 34-year-olds in the UK still live with their parents - with men being more likely to do so than women. There may be all sorts of reasons for this - perhaps a relationship has broken down, renting is too costly or they're trying to raise a deposit for a home of their own.

And while it may be great to be living as one big happy family, new research sheds light on the financial pressures the 'boomerang' generation of young adults is putting on their parents.

Seven in 10 (72%) of parents of boomerang children say their household spending has increased - although less than half (41%) charge any form of 'rent' for their kids to live back at home.

The research, from Skipton Building Society, found finishing university and reaching 30 were often trigger points for moving back in with parents. Some were using the family home as a base to search for jobs, and others were nursing a broken heart following a relationship breakdown.

Among parents who were taking contributions from their adult children for household running costs, the average amount was the fairly modest sum of £123 per month.

While some parents spent the extra cash on food and groceries, others were sensibly putting the money away for a rainy day.

Jacqui Bateson, customer proposition manager at Skipton Building Society, says: "Whether you're 21, 41 or 61, saving for the future is just as important. Having the kids return to the nest is a good opportunity to have a broader conversation about money - we actually found that many parents tend to charge their children rent primarily to help them become more familiar with money management.

"It could also be a good time to revisit your own finances and think about how you're saving for yourself, as well as being there for your children when they need you."

To help parents consider ways to ease the strain on their wallet, Skipton has teamed up with Becky Wiggins, parent blogger @EnglishMum, who offers her tips for managing finances:

1. See your child's return home as a positive. In this financial climate, it's something that a lot of young people have to do, so there's really no stigma attached.

2. Whether they're job hunting or starting their first job, your boomerang kid may already be saddled with quite a large amount of debt. Be empathetic to their situation and acknowledge how they're feeling.

3. Being completely open about money suits everyone best. If the kids are worried about money, it's easiest to get everything written down and chat about a plan for managing the debt.

4. Agree a contribution figure that suits everyone. Skipton found that the average boomerang kid increases household outgoings by £86 a month, or £1,032 a year, so it makes sense that they contribute to the household purse. Regular payments are also good practice for managing bills when they finally move out into their own place.

5. Money aside, there could also be other ways you and your child could help each other. Maybe they could look after the house or pets while you're away, or you could give them lifts to job interviews.

6. If you're already in a great financial situation, you could consider having your child home as a great way to help them build up a cash pot, such as a deposit for a house.

7. Don't feel bad for asking. Now you're all adults, they understand that you have your own finances to think about and that it's unrealistic for you to provide everything for them.

8. Don't ignore your own finances. Having adult children is a big step for you too. It's a great time to have a look at your own finances, and take stock of savings, pensions, the mortgage and plans for retirement. You could move to somewhere cheaper - and no longer have to worry about buying near particular schools.

HOW... SINGLE PEOPLE ARE FEELING FINANCIALLY UNDERPREPARED

Nearly half (46%) of single people feel they aren't preparing adequately financially for their future, a new report has found.

Nearly three in 10 (28%) single people say they feel downbeat about retirement, according to Scottish Widows. Two-thirds (64%) also think it's unlikely they'll ever be able to save more than they currently do for retirement.

Using credit cards, paying off student debt and earning a relatively low income are all reasons why single people said they were feeling the squeeze.

Robert Cochran, a retirement expert at Scottish Widows, says: "As the trend for staying single for longer continues to grow, it is clear that greater awareness needs to be raised to help single people start preparing for the life they want in retirement."

TIPS TO PLAN FINANCIALLY FOR THE FUTURE

1. Get to grips with terminology. If you're living with a partner but not married, make sure that your partner's pension scheme recognises the term "partner" in its terminology and that nomination forms are up-to-date.

2. Make use of free help. This may be available from employers or agencies such as the Money Advice Service and Pensions Advisory Service. Pension providers can help too. Scottish Widows is supports Pensions Awareness Day, which is aimed at raising awareness about the value of having a pension.

3. Plan for longer life spans. Many people are living for longer - and this means we need to start planning for the future much earlier than previous generations, and to start thinking about the sort of future we want to have. Whether this involves more travel, working part-time, planning to financially support your children. Having a clear goal about how you want your future to be will help you start planning now.

4. Track down previous pensions. You can trace pensions that may have been "lost" or forgotten about. These can be consolidated into a single pension for potentially lower charges and better choice of investments.

5. Make the most of your workplace pension. Staying in your workplace scheme means benefiting from your employer's contributions and tax relief. Higher rate taxpayers should check they are getting the relief they're entitled to, and may need to claim via self-assessment. Increasing your contributions when you get a pay rise means you won't notice the difference in your pay.

6. Expect the unexpected. Starting saving early on helps provide a safety net should unexpected situations arise, such as sickness, disability or redundancy, which could affect your ability to earn.