P11D form on a desk surrounded by company car keys, a gym card and a medical insurance letter, representing common benefits in kind.

P11D Guide: What Employers Need to Report 2026

Somewhere between “we gave the sales team gym memberships” and “HMRC wants a form about it,” most business owners lose the plot entirely. That’s the P11D for you. Quietly unglamorous, easy to forget, and expensive to get wrong. Did your company hand out anything beyond straight salary this tax year? A car, private medical cover, […]