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In general, other income would include money or income generated from activities unrelated to business, work, or performing services. This is income not from wages, self-employment, retirement, home or property rentals, or investments. It is income not reported on a W-2 or 1099.

Line 8 of your Schedule 1 would generally display "other income" items. Did you have any stock options, distributions from an HSA or MSA, a Net operating loss carried over, debt cancellations, gambling winnings?

Also, do your items reported on your Form 1040 add up? Where is this other income reported on your 1040? There must be a line that has a greater number in it than what you reported. If your Form 1040 properly reflects what you input into TurboTax maybe the breakdown is incorrect? Maybe share a sanitized copy of this breakdown.
 

Schedule 1 shows other income items in line 8 that flows to line 8 of your Form 1040.

Click here for Publication 4491.