How do you guys cost your jobs?

[Mark.W]

I use Quick Books, so at the end of every month I can see to the penny how much profit I've made, and precisely what my overheads were .....

BUT as we all know overheads vary per month so budgeting and having spare cash in your business account is very important.

Thanks for this I have now changed from Kashflow to QuickBooks, its a lot better.