If you have already submitted a 1099-NEC form and need to adjust it to a 1099-MISC form, you can file a corrected 1099-NEC form with the correct information and then file a new 1099-MISC form with the same information. You can also use the IRS’s online filing system to file a corrected 1099-NEC form and a new 1099-MISC form. UTSA Blackboard

It is important to note that the deadline for filing 1099 forms is January 31st of each year. If you have missed the deadline, you may be subject to penalties and interest charges.