NOL....1045 and/or amending past return..

[AZ-Tax]

Have a client who has $4000 of carry forward NOL generated from Sch C loss. To do a carry back, I use form 1045 but since the Fed - AGI will be reduced for which the state tax return uses in their calculations, I probably should go the route of amending the state return and use the form 1045 for the Fed opposed to amending the Fed. Am I correct?

[Bees Knees]

The 1045 is just another faster way to amend the federal return. Even though the 1040X is not used, it is still an amended federal return.