Lestin

I've been working as an AE for a few years undertaking consultancy work, both here and in the UK. No problems with this way of working. As part of the work I do, IT Services, I'm now being asked to help set up various things e.g. websites, a method of watching UK catch up TV on mobile devices etc which require an outlay for the required software etc. this is similar to someone with purchases of materials for whatever purpose working under the AE system. My concern is that under the AE accounting/cotisation and tax arrangements there doesn't seem to be any way that I can offset my actual costs against my income, thus only paying contributions on my net earnings, as would be the case in the UK. Any advice from anyone who has been in the same position would be much appreciated.