W-9 - Form to have Independent Contractors and 1099 recipients complete.
W-4 - Complete and provide to your employer for withholding taxes.
Form 14039 - If you have been a victim of Tax Fraud, download this Form and file it with the IRS.
For our Business Clients with Payroll:
2013 Withholding Tables - Percentage Tables
2013 Withholding Tables - Withholding Tables start on page 38.