Korea Administrative Appeal Deadline Calculator

Calculate Korean administrative appeal filing deadline, 90-day and 180-day dates, weekend adjustment, no-deadline cases, and mandatory prior procedure.

Administrative Appeal Deadline Inputs

Disposition fieldAppeal typeMandatory subtypeDate you knew of dispositionDisposition dateReference dateWrong notice days

days

Agency gave a wrong period notice

Deadline status

open

Deadline date

2026-08-31

Days remaining

Mandatory prior procedure

Deadline Detail

Has filing deadline: Yes
90-day date: 2026-08-30
180-day date: 2026-11-16
Weekend adjusted: Yes
Period model used: admin
Expected decision date: 2026-08-29
Maximum decision date: 2026-09-28

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What Is the Korea Administrative Appeal Deadline Calculator?

This calculator determines whether an administrative appeal can still be filed in Korea. It uses the date the person learned of the disposition, the disposition date, the field of disposition, appeal type, wrong-notice extension, and reference date.

The English UI calls the Korean administrative-appeal function. It preserves the 90-day, 180-day, field-specific days or months, weekend adjustment, no-deadline categories, expected decision date, and mandatory-prior-procedure flag.

Important Note

Missing the filing period can lead to dismissal without reaching the merits. If the remaining days are short, preserve proof of receipt and prepare filing documents immediately.

Core Deadline Rules

Rule	Calculator treatment	Meaning
90 days from knowledge	Calculated from the date the person knew of the disposition	Often the practical deadline
180 days from disposition	Calculated from the disposition date	Outer deadline in the ordinary administrative model
Earlier deadline controls	The calculator compares 90-day and 180-day dates	The earlier date is the filing deadline
No-limit categories	Nullity confirmation and inaction mandatory-performance cases can show no filing period	Delay can still harm evidence and strategy
Weekend adjustment	If the last day falls on weekend, deadline moves to the next business day	Civil Code end-date rule is reflected

Mandatory Prior Procedure

Driver-license cancellation or suspension often requires administrative appeal before administrative litigation.
National tax disputes generally require examination request or tax tribunal review before suit.
Customs disputes, civil-servant discipline, labor dismissal, and unfair labor practice matters use field-specific procedures.
Local tax rules changed so prior review can be optional in some contexts, but the exact field still matters.

Decision Period and Stay

The Korean model calculates an expected decision date 60 days from the reference date and a maximum date after a 30-day extension. These are planning dates, not a guarantee.

Filing an administrative appeal does not automatically stop the disposition. For driver-license, business suspension, or other immediately effective dispositions, a stay of execution should be considered separately.

FAQ

Which date matters if notice date and disposition date differ?

The ordinary rule compares 90 days from knowledge and 180 days from disposition, then uses the earlier date.

Can a wrong deadline notice help?

The Korean model allows an extended knowledge-period input when the agency gave an incorrect notice, but whether it is accepted depends on proof and legal review.

Legal Use Notice

This English page translates and adapts the Korean calculator content for Korea-based estimates. The interactive calculator reuses the same Korean pure calculation function as the Korean page, so the numerical result is aligned with the Korean service. It is an estimation tool, not legal advice for a specific dispute.