Solved
The excess is not showing up automatically so I am trying to figure out where in the credits/deductions I enter this number in to show up on schedule 3 line 11.
If TurboTax calculates that the amount of RRTA Tier 1 tax withheld should have been $0, you may need to enter the amount of Railroad Retirement Compensation in Box 14 in addition to the amount of RRTA Tier 1 taxes withheld. That is how TurboTax calculates how much the Tier 1 withholding should be. The amount of Railroad Retirement Compensation in Box 14 should match the Wages reported in Box 1.
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