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did you use code M for each of those summary totals? without it Turbotax does not know they are summary totals so the 8453 will not be generated. I will point out that transactions where proceeds and tax basis are reported to the IRS (generally types A or D) and there are no adjustments like for wash sales or market discount, they can be reported directed on lines 1A and/or 8A of schedule D (no 8949) and in that case no detail needs to be provided to the IRS.