D-4 Deadlines and timing
Based on 2 official sources.
[1]D-4 Visa Overview
D-4 is for non-degree programs (Korean language institutes, exchange students, researchers). No TOPIK required. In 2025, 4 language programs are under strict review, with 1-year visa restriction from 2026 semester 2.
Source: Study in Korea · 교육부 · Checked 2026-07-01
[2]Financial proof
Financial proof via bank balance certificate (self or parents). D-2: 20,000+ USD, D-4: 13,000+ USD, held 1+ month. Some countries need 6 months. Fake certificates = deportation + entry ban. Platform refuses fake document requests.
Source: 법무부 비자 발급 안내 · Checked 2026-07-01
How these rules apply can differ with your circumstances, and the final decision rests with the immigration office with jurisdiction. Preparing and filing documents for an individual case is the work of a licensed administrative scrivener.