I use QEF to print and efile 1099-NECs. I purchased the desktop (Windows) version of 2025 Home and Business and used its link to do the 1099-NECs on-line via QEF. My 2024 business info successfully transferred. The data was edited with all the new info for 2025. A PDF was created and saved of the forms. Efile button was greyed-out showing 'Not Enabled' A few days later all the 2025 info is missing from my account. Can I get it back?
Perhaps, no one knows for sure.
I checked some prior year posts, and the ability to e-file them wasn't available until:
~16 Jan 2025 for the 2024 QEmp 1099-NEC forms. (the e-file button stopped being greyed out and folks needing it could e-file them)
~10 Jan 2024 for the 2023 QEmp 1099-NEC forms. (etc)
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Since 2025 isn't over yet, perhaps you should wait until 15 Jan 2026 to try again. Not sure why your data disappeared, but perhaps you are just starting too soon.