You cannot file income from a 1099 separately from your other income. You have to report all of your income on one tax return. Did you already file a tax return for 2023? If so, you have to file an amended return, Form 1040-X, to add the 1099.
If you have not filed a tax return for 2023, you can purchase the TurboTax desktop software for 2023 from the Past Years' Products page.
