After you file

If you are self employed you never have to wait for the 1099 forms to come in the mail since you should be keeping records of all the income and expenses you have to report on the Sch C.  The entering in of the 1099 forms are not required by the IRS  if you enter in your total income received that includes the 1099 income ... look at the Sch C and see that only the total is sent on your return from you.   The 1099 forms are sent to both you AND the IRS and that is how they know if you entered all your income.