Please include a filled out and signed IRS W9 with this contract.
Time & Materials vs. Set Price:
Time & Materials: You are getting paid for your time plus reimbursement for actual money spent. You must provide all receipts to be reimbursed.
Set price: You are being paid one set price for your time and all materials. No receipts will be required and no extra money will be paid for additional time or materials spent (Without prior written approval).