If you receive a 1099 from a corporation at the start of the new year for contract services rendered the year before, you may choose to file electronically or on paper. You may find yourself required to send the form because of your own business, or because you are a successor business that has agreed to file on the behalf of your predecessor. In either case, fill out the form completely and accurately. The form must be sent to the IRS in a specific manner to avoid delays in approval or rejections.
Attach a 1096 form with each 1099 submitted -- the 1096 serves as a transmittal document. Do not staple or tape multiple forms together.
Use block script when filling out the form and make sure the document is legible. If you are typing into the form electronically, use black ink and size 12 Courier font. A copy of the form is not acceptable -- you must submit a form either handwritten or printed directly from a computer.
Put your 1099 and 1096 -- and any other tax documents being submitted at the same time -- in a flat mailing envelope. Do not fold the forms in any way. If submitting a large number of documents, you may mail them in multiple envelopes, but you must make sure to number the envelopes.
Mail your tax return first-class. Alternatively, the IRS accepts deliveries from certain expedited mail services, including DHL same day delivery, FedEx overnight and USPS next day air delivery.
Send your package to the Department of the Treasury IRS office that has been assigned to handle returns from the state you live in. When sending a 1099, there are only two centers that handle such returns -- half of the states are assigned to a center in Texas and the others to a center in Missouri. Check the IRS website or the 1099 form to determine the appropriate mailing address. Paper 1099 forms are due to the IRS by the end of February each year.