This registration system not only served as a starting point of "rokunen-ichizo" (literally, "one creation in six years) in which family registers were created every six years thereafter, but also made it possible to see the direct composition of each household by organizing households in terms of fifty households in ichi-ri on an administrative basis and describing each family member's name, age and relation to the household head in detail, and served as a ledger to conduct Handen Shuju (a regulation of land ownership) and jinto kazei (poll taxation).
同戸籍は、その後の六年に一度作成するという「六年一造」の造籍の出発点になっただけでなく、五十戸一里を基準に行政的に戸を編成して、その戸内の家族（戸口）の名・年齢・戸主との続柄などを詳述したことによって、個々の家族構成を直接的に把握することを可能にし、それを基に班田収授を行い、人頭課税をする台帳の機能も果たした。