After you file

The IRS itself will take your refund for back tax before any other tax offset is applied.

You can check your own account with the IRS and if you owe back tax at the IRS website.
<a rel="nofollow" target="_blank" href="https://www.irs.gov/payments/view-your-tax-account">https://www.irs.gov/payments/view-your-tax-accou...>
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**