C.E.O
356 Points
Joined November 2007
Once you have accounted input tax on purchase it will remain unclaimed only if it forms part of closing stock. However if the tax effect is minor CTO will not usually insist on this addition.
Technically this can be carried forward till stock is sold.
If you forgot to take input credit on a purchase bill then return has to be revised. Depending on state VAT law they allow return revision within 2 months without approval and beyond that with prior approval of Commercial tax office