Sending money from Japan to Korea — 2026 cost guide for Korean residents and students

Approximately 407,000 Korean residents in Japan (MOJ Immigration Statistics, year-end 2025), around 17,000 Korean students, and many other Japan residents send money to family and friends in Korea every month. The KRW corridor is one of the largest outbound remittance lanes from Japan. Conventional wisdom says "banks are safest" or "a Korean bank's Japan subsidiary will be lowest shown total cost," but once you include the FX markup hidden behind the headline fee, the true total cost can change materially by provider, time, and amount. Refer to the updated yensend.jp comparison board for the current numbers. This guide uses timestamped data from the tracked providers compared on yensend.jp to help you choose Japan-to-Korea remittance the right way: by total cost, not headline fee.

1. The Japan-Korea remittance market and who uses it

Personal remittance demand from Japan to Korea splits into roughly three layers. The first layer is Korean residents in Japan (approximately 407,000 people on H-2, F-4, F-5, F-6 and similar statuses; MOJ Immigration Statistics, year-end 2025) sending support to family back home — typically a parent generation in Seoul, Busan, Incheon, Daegu, or smaller cities. The second layer is Korean students enrolled at Japanese universities, language schools, and vocational schools (around 17,000 people) sending money to family and friends, often in smaller and irregular amounts. The third layer is Japan residents of other nationalities sending personal funds to relatives, friends, or business contacts in Korea — for example a Japanese spouse supporting in-laws, or a foreign professional based in Tokyo sending to a Korean partner. On the receiving side, the five major Korean commercial banks — KB Kookmin, Shinhan, Woori, Hana, and NH NongHyup — dominate the inbound personal transfer market, with internet banks like KakaoBank and Toss Bank growing as secondary destinations. On the Japan side, the traditional channels were Shinhan Bank Japan (SBJ Bank) and major Japanese commercial banks (SMBC, MUFG, Mizuho), but over the last five years online-first providers like Wise, SBI Remit, Instarem, and Rakuten Bank have rapidly taken share thanks to lower FX markups and faster settlement. yensend.jp covers the tracked major Japan-to-Korea providers and uses Wise's public API mid-market rate as the updated reference baseline against which every other provider's customer-facing rate is measured.

2. Updated KRW Provider Comparison

yensend.jp compares the current provider set available for the KRW corridor. Provider availability, delivery method support, fees, FX markup, and speed can change by route and timing, so this guide does not publish a fixed provider list as authoritative. Refer to the updated yensend.jp comparison board for the exact current figures. Varies by provider, time, and amount.

3. The headline-fee trap — "banks are expensive" is half right

Headline fees for Japan-to-Korea transfers vary widely by provider type, funding method, payout route, campaign status, and send amount. At first glance the megabanks can look dramatically more expensive, but that is the headline-only view. Once you add FX markup, a mid-fee provider can land close to a bank route when its FX margin is wider, while a visible-fee provider can still be cheaper if the recipient receives more KRW. Japanese commercial banks may layer a remittance fee, correspondent-bank costs, and lifting charges that are not always obvious in the front-end quote. Online-first providers usually present a simpler fee model, but their exact cost still changes with amount and timing. yensend.jp benchmarks on "how much KRW lands in the Korean account" and sorts by total cost. Refer to the updated yensend.jp comparison board for the current numbers. Varies by provider, time, and amount.

4. FX markup — the largest invisible cost on the Korea corridor

The JPY/KRW mid-market reference rate is read from Wise's public API where isConsideredMidMarketRate: true, refreshed daily at 10:00 JST and stored on yensend.jp. Every provider's customer-facing rate can sit below this mid by some margin — that gap is the FX markup, the single most important hidden cost on the corridor. The variance is real money even when headline fees look similar, because FX markup can become the larger driver of total cost. The reason regulators and consumer-finance writers focus on the mid-market rate as the benchmark is that it is not set by a single provider's pricing decision. yensend.jp records the gap between mid and each provider's offered rate every day, so you can confirm the exact FX markup at the moment of your transfer on the comparison board rather than estimating from a static article. Refer to the updated yensend.jp comparison board for the current numbers. Varies by provider, time, and amount.

5. Delivery speed and recipient bank coverage

Delivery speed and supported recipient banks vary by the current provider row, funding method, recipient bank, and compliance checks. Some routes can settle in minutes or hours, while bank-backed SWIFT routes can take one to three business days and may involve intermediary charges. KakaoPay and Toss generally require a bank-account step for Japan-origin funds, so confirm the recipient bank and final receiving method before sending. Use the updated board and the provider confirmation screen for current timing and landed KRW.

6. Case study — ¥100,000 monthly, year-over-year cost difference

Consider Mr. A, a Korean resident in Tokyo in his 30s, sending money every month to his parents in Seoul. A bank-counter route and an online-first route can show very different landed KRW amounts even when the sender starts with the same JPY budget, because headline fee and FX markup move independently. The exact per-transfer gap and any annualized difference should be calculated from the updated board at the moment of transfer, not from static examples. Refer to the updated yensend.jp comparison board for the current numbers. Varies by provider, time, and amount. The lesson here is not that any one provider is universally lowest cost among shown providers — that depends on amount, FX market conditions, and ongoing campaigns — but that the choice of provider is one cost you can still control before you send. The yensend.jp updated comparison board sorts the tracked providers by total cost ascending at the moment of your transfer, so you can pick based on what is actually lowest shown total cost right now, not on the most prominent headline fee or the brand you happen to recognize.

7. Checklist for finding a lower-cost Korea transfer

(1) Never decide on headline fee alone — judge by total cost, which is headline fee plus FX markup. (2) Fee-free or no-fee labels are warning signs — the cost is often recovered through wider FX markup. (3) For monthly senders, use the updated board's current per-transfer gap and annualize that current value yourself. Refer to the updated yensend.jp comparison board for the current numbers. (4) Always compare in recipient currency (KRW) — what lands in the Korean account is the true metric, not what leaves your Japanese account. (5) Beware of the gap between cached display rates and the actual locked-in rate at order time. (6) Check whether intermediary correspondent fees (lifting charge, corres fee) apply — easy to miss with megabank transfers. (7) Confirm your recipient bank is one of Korea's top five commercial banks (KB Kookmin, Shinhan, Woori, Hana, NH NongHyup); regional and internet-only banks are not always supported. (8) Foreign exchange transaction limits under Korean law may apply; refer to the Korea Eximbank or recipient bank for details.

8. Compare Japan-to-Korea transfers on yensend.jp

yensend.jp compares the current KRW provider set using Wise public API mid-market data as the reference baseline where available. Comparisons refresh daily at 10:00 JST and are sorted by total cost ascending, so you can see the KRW that lands in the recipient account without relying on a static provider list. Rankings are partner-neutral and based on current available rows.

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