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Yes, you can e-file 1099 NEC in QuickBooks Online. Also, there is no additional charge in e-filing 1099 if your subscription includes QuickBooks Bill Pay Premium or Elite, QuickBooks Core, Premium, or Elite Payroll and QuickBooks Contractor Payments.
Please don't hesitate to return to this post if you have other concerns about e-filing your 1099s in QuickBooks Online. I'll be here to lend a hand. Have a good one!