One of the good things to come out of the Chancellor's Autumn Statement last year was the announcement that from April 2016, the rental income that individuals could receive tax-free from renting a room in their home would be increased from £4,250 (the limit since 1997!) to £7,500 a year. If you're thinking of taking in a lodger, this means that there's now even more chance that you'll pay no tax on the rent you receive.
There are a few things to keep in mind, though. If you own the property jointly with someone else, then the limit is £3,750 for each of you. Also, you should let your insurer and your mortgage lender know that you've got a lodger - and don't forget that if you currently live in the house on your own, you may lose the single person discount for Council Tax once you have a lodger.
If you've got any questions about how the Rent A Room scheme works, do get in touch!