There are lots of good financial reasons for making a will:
You can decide how your assets are shared out – if you don’t make a will, the law says who gets what.
If you aren’t married or in a civil partnership (whether or not it’s a same sex relationship) your partner will not inherit automatically – you can make sure your partner is provided for.
If you’re divorced or if your civil partnership has been dissolved you can decide whether to leave anything to an ex-partner who’s living with someone else.
You can make sure you don’t pay more Inheritance Tax than necessary.