What this line means
The sum of all nonrefundable credits from Part I, lines 1 through 6. This total flows to Form 1040 line 20. Nonrefundable credits reduce your tax liability but cannot reduce it below zero — any excess is lost (with the exception of the residential clean energy credit, which carries forward). This is the combined value of all credits for foreign taxes, child care, education, retirement savings, energy improvements, and other nonrefundable credits.
Does this apply to you?
- You claimed any credit on Schedule 3 lines 1 through 6
- You have at least one nonrefundable credit from foreign taxes paid, dependent care, education, retirement savings, energy improvements, or the miscellaneous credits on line 6
Easy to overlook
Nonrefundable credits disappear if your tax liability is too low These credits cannot generate a refund. If your total nonrefundable credits are $4,000 but your tax liability (Form 1040 line 18) is only $2,500, you lose $1,500 in credits permanently. 1 This affects filers with large standard deductions, many dependents, or low income. The only exception is the residential clean energy credit (line 5a), which carries forward unused amounts to future years. General filing pattern — nonrefundable credits wasted when tax liability is low
The order credits are applied matters The IRS applies nonrefundable credits in a specific sequence, and some credits have their own limitation calculations based on tentative minimum tax. 2 The child tax credit on Form 1040 line 19 is applied before these Schedule 3 credits. If the child tax credit already reduces your tax to zero, every credit on this schedule is wasted for the year. Review your total tax liability before spending time calculating credits that will have no effect. IRS Schedule 3 Instructions — Line 7
Watch out for this
Confusing nonrefundable credits with refundable credits. The credits on Part I of Schedule 3 cannot produce a refund. The refundable credits on Part II (and on Form 1040 lines 27-29) can. If you are expecting a refund from education credits, note that only $1,000 of the AOTC is refundable — that portion appears on Form 1040 line 29, not here. The nonrefundable portion on this line only offsets tax owed.
Footnotes
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IRS Schedule 3 (Form 1040) Instructions, Part I. https://www.irs.gov/instructions/i1040s3 ↩
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IRS Schedule 3 (Form 1040) Instructions, Line 7. https://www.irs.gov/instructions/i1040s3 ↩