There are many ways to fundraise for an individual. While you can’t register a charity that benefits just one individual, you could form an unincorporated association or consider other legal structures.
Alternatively, you might want to use a crowdfunding platform such as Crowdfunder, GoFundMe or JustGiving Crowdfunding.
The approach you take may vary depending on how much money you hope to raise and how long you wish to fundraise for.
For more information about crowdfunding, including a full list of registered platforms, visit the UK Crowdfunding Association.