I very rarely take overtime into account when calculating a client's basic wages - as it can never be guaranteed and you will find problems in months when you may not receive much money. In my cases, the 50% uplift is therefore calculated on the additional earnings actually received above basic salary.
The safest way to keep those monies from temptations way is to send it to your IP. Ang - a regular poster does this every month without fail to her IP, and finds that this works well and ensures that she is fully compliant with her IVA. I would suggest you do something similar.
Regards, Melanie Giles, Insolvency Practitioner for over 20 years.
For further details contact me at
http://www.melaniegiles.com and view my IVA blog at:
http://melaniegiles.blogs.iva.co.uk