Tax refund service for foreign workers
Reclaim your overpaid tax with a 1-minute application.
- Max lookback period
- 5 years
- Fee on success
- 33%
- Fee on failure
- ₩0
If you overpaid tax while working in Korea, you can reclaim it through a correction claim.TaxRadar, together with Geosan Tax Firm, guides you from start to finish.
Safety · Trust
A safe tax refund backed by official institutions

National Tax Service (NTS)
Refund data is retrieved directly from the national tax system.

Korean Association of Certified Tax Accountants
AI results are reviewed and signed off by a certified tax accountant.

KISA
Your data is protected under Korea's ISMS security standard.

Ministry of Justice, Immigration
We follow visa-specific filing rules, so your stay is unaffected.

NICE
Identity is verified via Korea's largest credit bureau, proving a regulated service.

AWS Cloud
Runs on AWS infrastructure used by global financial institutions for reliability.
Official Partner
Backed by correction-claim expertise, in partnership with Geosan Tax Firm correction-claim approval rate 98%
TaxRadar holds an official partnership with Geosan Tax Firm. Certified tax accountants file your correction claim directly — a lawful, secure tax service, never an unlicensed agent.
Correction-claim specialists
Certified tax accountants file correction claims directly so foreign workers accurately reclaim their overpaid tax.
Tax-review response specialists
Tax accountants who precisely understand the NTS review process handle your correction claim thoroughly.
Dedicated staff on standby
Skilled professionals handle everything from application to completion, quickly.
How it works
A simple tax refund in four steps
We handle the complicated paperwork. You only enter your basic information.
- 01About 3 minutes
Enter your info
Passport, residence number, work period and other basic details.
- 02About 1 day
Check your refund
Instantly see up to 5 years of refundable tax via a Hometax lookup.
- 03About 1–2 days
File the claim
Geosan Tax Firm files and handles the NTS review on your behalf.
- 04About 1–2 months
Refund complete
Automatically filed, then the National Tax Service reviews and processes it. Paid directly by the NTS, then a 33% fee is settled. ₩0 if unsuccessful.
WHY
Why foreign workers choose Taxradar
Official Geosan partner
Not an unlicensed agent — certified accountants at a licensed firm file your claim directly.
Fully success-based fee
If you don't get a refund, we don't charge a single won.
Fee on failure
₩0
14 languages supported
Not comfortable in Korean? We guide your refund in 14 languages.
- Bangladesh
- Cambodia
- China
- Indonesia
- Mongolia
- Myanmar
- Nepal
- Philippines
- Republic of Korea
- Russia
- Thailand
- USA
- Uzbekistan
- Vietnam
Up to 5 years back-claim
You can apply even after leaving Korea, and reclaim up to 5 years at once.
Dedicated manager
Every customer gets a dedicated manager and can track progress in real time via in-app push notifications.
Reviews
See real cases from foreign workers who got refunds
Customers of many nationalities have reclaimed overpaid tax through Taxradar.
Track your refund anytime, anywhere with the Taxradar app
Follow every step from application to deposit in real time. Available in 14 languages.



























