ध्वजमूलमतिक्रान्तानां चाकृतशुल्कानां शुल्कादष्टगुणो दण्डः ॥ कZ_०२.२१.१६ ॥
dhvajamūlam atikrāntānāṃ cākṛtaśulkānāṃ śulkād aṣṭaguṇo daṇḍaḥ
For those who pass beyond the customs-flag post (checkpoint) without paying duty, the fine shall be eight times the duty.
He ties the fine to the duty amount (eightfold), making evasion economically irrational and protecting state revenue.