You will need to inform your mortgage lender, if you have one, that you will be renting out a room in, or part of, your home.
If you are a long leaseholder, you should check the terms of the lease to ensure that you can let part of the property and, if necessary, get the freeholder’s agreement first.
Taking in a lodger can also affect any housing benefit you receive, so it’s worth checking with your local authority to see if any of these changes to your circumstances will have an impact on your payments.
If you live alone, you will be receiving a discount on your council tax, so you need to inform your local council that this is no longer the case.
Finally, you must inform your insurance company, and you may need to take out specialist landlord insurance to ensure you are fully covered for all eventualities.