I am based out of the UK.
I received a conditional offer from a large public sector organisation for a permanent role in the beginning of July, which I accepted. The instructions on the letter state that I am not to resign my role until an unconditional offer was made.
While the background checks were being done, I took up a week-long contract role with another organisation.
An unconditional offer was received from the public-sector job, last week and I'm due to join them in a week's time.
Do I need to disclose this week-long job, provide additional references, etc to my new employer? Will the payment from the week-long job, show on my P45 and raise questions?