Asia-Places.com listou aprox 13 bancos dentro Seodaemun-gu. Alguns dos mais bem avaliados bancos dentro Seodaemun-gu estão- 우리 은행 연세 지점, ⁇, Woori Bank Ahyeon Station Branch, Woori Bank North Gajwa Branch, Filial Woori Bank Namgajwa-dong, Woori Bank Independence Gate Branch, Filial Namgajwa-dong do Standard Chartered Bank, 우리 은행 북가좌 지점, Shinhan Bank Chungjeongno Branch & Filial Woori Bank Hongje 2-dong.