There are no second extensions. Complete and file your tax return with the information you have. After you receive the tax data currently missing then file an amended tax return. The amended return should only be started after you have received the tax refund or the taxes owed and paid have been processed.
Amended tax returns can only be printed, signed, dated and mailed by you to the IRS. The IRS will take up to 4 months to process the amended tax return.
