令和５年分 年末調整控除申告書作成用ソフトウェア

This application is software provided by the National Tax Agency that allows employees to easily create year-end adjustment related documents for submission to their workplace in electronic or written form using deduction certificate data and other related information.

Main features:

• Creation and saving of year-end adjustment declaration data
• Import of various deduction certificate data
• Integration with My Number Portal
• Automatic determination of eligibility for various deductions such as dependent deductions and spouse (special) deductions
• Electronic signature with My Number Card or setting of ID/password for year-end adjustment declaration data
• Simulation function for deduction amounts (simple verification)

Supported version: Android 8.1 or later (8.1, 9, 10, 11, 12, 13)

Important notes:

• Your smartphone must be capable of reading My Number Card in the following cases:
  • When obtaining deduction certificates through My Number Portal integration
  • When electronically signing the created declaration forms with a My Number Card
  For information on smartphones capable of reading My Number Card, please visit the official individual authentication service portal site: https://www.jpki.go.jp.

To integrate with My Number Portal, preparation is required beforehand. For more details, please refer to the National Tax Agency's website on "Streamlining year-end adjustments and final income tax return through My Number Portal" (https://www.nta.go.jp/taxes/tetsuzuki/mynumberinfo/mynapo.htm).