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JapanPublic sector2020 – ongoing

National Tax Agency

AI chatbot for online tax consultation

Japan's tax consultation chatbot received 4.2 million questions in 2021

WorkingCompany's own claim

Problem

Taxpayers needed an easier way to find tax information outside staffed consultation hours.

Approach

The agency began a chatbot trial in October 2020 and formally introduced it in 2021. Users selected questions from a menu or entered text, and AI supplied answers. The service complemented the agency's existing online tax information.

Results

4.2 millionquestions received in 2021, according to Japan's contribution to the OECD reportCompany's own claim[1]

Takeaway

Question volume showed use of the consultation channel. It did not measure answer accuracy or reductions in staff workload.

Categories

Business function
Customer service
Innovation type
Process innovation
Evidence
Company's own claim

Sources

  1. Tax Administration 2022
    OECD2022Research paper or report

Source summaries

[1]OECD2022

Japan's contribution described an AI chatbot for online tax consultation. It reported 4.2 million questions in 2021, more than 10 times the trial volume in 2020.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026
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