← Cases
South KoreaPublic sector2024 – ongoing

National Tax Service (South Korea)

AI voice counselling on the 126 tax helpline

South Korea's tax helpline reported connection success rising from 24% to 98% after AI voice counselling

WorkingCompany's own claim

Problem

Taxpayers struggled to reach telephone advisers, with connection success previously at 24%.

Approach

The National Tax Service introduced AI voice-recognition counselling in May 2024. The assistant gave tailored guidance and texted supporting information during calls. Callers could also speak to staff.

Results

98%telephone connection success, up from 24%, reported by the governmentCompany's own claim[1]
630,000AI consultations, approximately 80% of consultations in the reported resultsCompany's own claim[1]

Takeaway

AI handled most reported consultations while staff remained available. Connection success measured access to counselling, rather than the accuracy of tax advice.

Categories

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

Sources

Source summaries

[1]Korea Policy Briefing29 Jan 2026

The government described the tax helpline's AI voice service. It reported connection success rising to 98% and AI handling 630,000 consultations, approximately 80% of the total.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026
Open case page ↗