The only way a Roth contribution would increase the amount you owe would be if it were an excess contribution. You can review the IRA contribution section to see if this is the issue.
- Select Federal from the left side menu.
- Select Deductions and Credits toward the upper left.
- Expand the list and scroll down to Retirement and Investments.
- Expand the section and click Start to the right of Traditional and Roth IRA Contributions.
- Continue through the section until you get to Your Roth Contribution Was Too High. This page will explain how much of your contribution was excess and why.