Can I file taxes by adding a left out job to a already refund me how can I amend it to pay a1099 tax report

Hello, You will need to file an amended return to add the 1099 income to it.  Since the 1099 is from a job you will need to add a schedule C onto the amended return to report this income and any expenses you have.

Here is an article with information on amended returns

https://turbotax.intuit.com/tax-tips/amend-return/how-to-correct-federal-tax-returns/L67t0F7il

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