Transitional input tax credit: entitlement to carry forward admissible VAT credits into electronic credit ledger under prescribed conditions. Transitional provisions allow registered persons (excluding composition taxpayers) to credit admissible Value Added Tax amounts into the electronic credit ledger subject to prescribed procedures and exclusions, including inadmissibility under this Act, lack of returns for the six months before the appointed day, and lack of substantiation under Central Sales Tax rules; unavailed capital goods credit may be taken if admissible under both laws; inputs in stock for persons newly taxable or previously exempt may be credited if used for taxable supplies, eligible under this Act, supported by invoices issued within twelve months, with special rules where invoices are absent.