You will save so much time this way and remember time is money. Another very important aspect of your freelance writing business is getting paid. To insure this, you have to know how to bill clients and how to follow up on clients who are slow to pay. You will need to send an invoice to each client for each project completed. You can buy preprinted invoices at most office supply stores or you can write a simple one yourself, detailing the date, who it's to, what work was done, the amount owed to you, and your payment terms.
Most writers expect to be paid within thirty days.
Send the invoice promptly, within a week of completing the work. If you have trouble collecting payment, send a polite letter to your client requesting payment. If you don't hear back within two weeks, send another polite, but a bit firmer letter. Send this letter certified, return receipt requested. If you still don't get paid within two weeks, try a phone call.