What credit are you talking about? It works out the same either way. let’s say the job is $10,000 not including the materials.
Either they buy materials so you report only the 10,000 income and you don’t claim the expenses for it. So you report $10,000 of income and have a 10,000 Net Profit.
Or you buy the materials say 5,000 and they pay you 15,000. 5,000 for materials and 10,000 for the job. You have 15,000 of income and 5,000 material exp giving you the same $10,000 Net Profit.
This doesn’t account for your other regular self employment expenses.
