Your carryover amount is shown on Form 8582, Part VII, "Unallowed Loss" on your prior year tax return. The alternative minimum carryovers may be the same if your assets are using the 27.5 year depreciation method (most common). Look for a similar Form 8562 with "Alt Min Tax" under the main title.
If you have a QBI loss carryforward, it would be reported on Form 8995-A as a supplemental page "Loss Netting and Carryforward."