Jinwoo Cheon

Jinwoo Cheon

Build products that stays in my head

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Jinwoo Cheon•

3d ago

Coin Cat - TurboTax for Korean crypto investors

Korea enforces 22% crypto tax in 2027. Most investors aren't ready. Coincat syncs your trades from Korea's top exchanges (Upbit, Bithumb, and more), calculates tax liability, and finds savings you'd miss. ✓ One-click exchange sync (read-only API) ✓ Real-time portfolio tracking ✓ Capital gains calculation (FIFO) ✓ Tax-loss harvesting alerts ✓ Export reports for filing Free to start. Built by ex-Naver, Toss, Banksalad engineers.
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