Input tax credit priority: integrated tax credit must be exhausted before using credits for central, state, or union territory taxes. Rule 88A requires that input tax credit on account of integrated tax be utilised first for payment of integrated tax, and any remaining amount may be utilised for central tax and State tax or Union territory tax in any order; credits attributable to central tax, State tax or Union territory tax may be utilised towards integrated tax or other tax heads only after integrated tax credit is fully utilised.