I also use Toggl, free to use, record the project and client and any extra narrative you wish, report as a download as excel file or pdf. I will attach these reports to a client's invoice where I charge on variable time to record what work I have completed. For fixed fees it is useful to check the fee is reasonable and I also record all my admin and CPD time.
I have exactly the same situation with a client and he gets around it by employing the majority of staff for the catering events through an agency. He did this prior to RTI but has now proved a very useful approach.
My answers
I also use Toggl, free to use, record the project and client and any extra narrative you wish, report as a download as excel file or pdf. I will attach these reports to a client's invoice where I charge on variable time to record what work I have completed. For fixed fees it is useful to check the fee is reasonable and I also record all my admin and CPD time.
I have just registered - perhaps try again.
Use Agency staff
I have exactly the same situation with a client and he gets around it by employing the majority of staff for the catering events through an agency. He did this prior to RTI but has now proved a very useful approach.