I work for a UK building materials manufacturer. Whilst sales were slower than normal over the last 12 months (for obvious reasons) and we didn't get our regular annual bonus, we are getting a small "thank you for working all of Covid" bonus.
The letter from HR states "Bonus to be paid on pay day (1st of the month). If the colleague leaves before the payment date, they will not receive the thank you".
So, if I were to resign on the 1st of July, would the company have any way to force me to return the bonus amount, or could they ask for me to voluntarily return it? It's a thank you for the last 12 months, but I can imagine them not being impressed with me taking the payment and leaving.