After filing my client's 2018 & 2019 1040 (yes, she was behind), and getting ready to prepare her 2018 & 2019 C corporation return, I find out that my client was issued 1099's to her social security and to her old Sole Prop EIN in addition to her C Corp EIN.  This is the case for both 2018 and 2019.  She was incorporated in 2017 and asked all Payers to use the new EIN.  Do I ask them to issue corrected 1099's to the corporation (even though corps don't need 1099's), or ask them to issue corrections with a zero balance in box 7?  Are they not allowed to correct 1099's for 2018 and 2019 at this time?  We've already sent a 1040 amendment in for 2018 for another reason and don't want to send yet another amendment showing the 1099 income that was reported on 1099 b/c it will be very difficult to match expenses to that income.  What to do?