Hi there, @roz2.
Currently, we don't have an option to print an amended 1099 form in QuickBooks Desktop directly. You can consider getting a paper 1099s forms from the IRS or order from us.
Once you already have the form, you can fill it out with the correct information, then select the Corrected checkbox and mail it to the IRS and your contractor.
To know more about 1099s, you can check out this article: General Instructions for Certain Information Returns. Visit page 11 on this pdf copy to help you identify the correction needed based on the error type.
Please keep in touch if there's anything else I can do to help you succeed with QuickBooks. I've got your back. Have a great day.