What if you didn't document tax loss carryforward every year ?

[AmyC]

You can file a return up to 3 years late and still be eligible for refunds and losses. In certain cases, you can appeal to the IRS for more years.

@jbbafl

[SmOkEy12]

what if schedule d carryover was incorrect for 3 years

[SmOkEy12]

$14420 in capital loss was deducted correctly but not subtracted correctly on schedule d

[SmOkEy12]

how do i correct incorrect  carry over on schedule d capital gain subtractions  for 2018 2019 and 2020

[Critter-3]

@SmOkEy12 

If the carryforward was calculated incorrectly then you can (and should) amend the prior year returns however was it actually done incorrectly ?    Even though the max loss of $3000 must be entered on the form 1040 if your income is low enough then the entire loss is carried forward.  If that is what you are seeing on the carryover worksheet (not just the sch D) then you have nothing to fix.  Look at the worksheet on page 11 to know what you should be seeing in your return file :  https://www.irs.gov/pub/irs-pdf/i1040sd.pdf