I've recently started working as a full-time 1099 contractor for a few different business (hated my full time job and quit). There are times when I have to pay for things that are reimbursed by the company I'm working for - software, flights, etc. When submitting an invoice, I'll submit my billable hours separately from my expenses. They've been cutting me checks with the amounts combined, which makes taxes a bit of a hassle. Is it reasonable for me to request separate checks for these two things, even if the expenses checks may be small?