For the last couple of years during the Covid-19 pandemic many businesses put on “virtual” Christmas parties for their employees and HMRC agreed that would be acceptable and that the exemption from tax would continue to apply.
There continues to be no taxable benefit for employees provided that all staff are invited, and the cost does not exceed £150 a head, inclusive of VAT.
The £150 per head limit applies to a tax year, so if you have also had an annual summer event then provided the combined cost of the two events is no more than £150 a head there would be no taxable benefit in kind. If however the summer event cost £80 a head and the Christmas party £100 a head only one event would qualify for the exemption.