Can I Buy USDT in Japan?

Yes, buying and holding USDT is legal for Japanese residents. The Payment Services Act (PSA) places no restriction on individuals owning, trading, or transferring USDT. The constraint is sourcing. The FSA's registered list covers around 30 domestic Crypto-Asset Exchange Service Providers, including bitFlyer, Bitbank, Coincheck, Binance Japan, SBI VC Trade, and Coinbase Japan.

None list USDT for retail spot trading as of April 2026. USDC has a narrow path through SBI VC Trade, the first and only stablecoin-licensed exchange as of March 2025, with bitFlyer and Bitbank listing USDC later. USDT itself remains outside the approved perimeter.

Offshore exchanges are the practical access point. BitMart, Bybit, OKX, and Gate are not IP-blocked but sit outside FSA jurisdiction. Japanese users can open accounts, deposit crypto, and trade freely, giving up local recourse in disputes and taking on the reporting burden that comes with moving funds off licensed rails.

How to Buy Tether (USDT) in Japan

The best way to buy USDT in Japan is with BitMart. The cleanest route is JPY bank transfer via LegendTrading at around 1% to 2% all-in, with a ¥3,000 minimum and business-day settlement. Card purchase via Simplex, Banxa, or MoonPay is the instant alternative at 3% to 5% all-in.

For anything above ¥20,000 I default to LegendTrading. The card path is worth the markup only when USDT is needed immediately.

Steps to buy Tether (USDT) on BitMart from Japan via LegendTrading:

1. Create a BitMart Account: Sign up on BitMart and complete KYC Level 1 with your passport or Japanese driver's license plus a liveness check. Verification typically clears in 10 to 20 minutes and unlocks deposits and withdrawals.
2. Open Buy & Sell: From the BitMart homepage, click Buy & Sell. Select USDT as the asset and JPY as the currency, enter your amount, and choose LegendTrading as the service provider.
3. Complete LegendTrading Onboarding: First-time users register with LegendTrading through the BitMart flow, which adds a second KYC layer. Have your passport or 運転免許証 (driver's license) plus proof of address ready.
4. Send JPY via Bank Transfer: LegendTrading provides bank details and a reference number. Send the payment from your Japanese bank account including the reference. USDT lands in your BitMart spot wallet once the transfer clears, typically the same business day.

JPY to USDT Fees

Headline fees are only part of the picture. All-in cost for a Japanese user depends on the on-ramp method, the service provider spread, and any spot conversion.

Deposits

• LegendTrading Bank Transfer (recommended): Around 1% to 2% all-in on fiat-to-USDT, business-day settlement, ¥3,000 minimum. The gateway handles KYC and compliance reporting internally.
• Card Purchase via Simplex / Banxa / MoonPay on BitMart: 3% to 5% all-in including processor markup and FX spread. Instant settlement. Worth the markup only when USDT is needed immediately.
• P2P via BitMart: JPY liquidity is thin and spreads widen to 1% to 2% off-hours. Most Japanese users default to LegendTrading instead.

Withdrawals

• Crypto Withdrawals: Network fee applies. TRC20 USDT under $2. ERC20 runs $1 to $15 depending on gas. Solana SPL under $0.10. BEP20 typically under $1.
• JPY Off-ramp: LegendTrading supports JPY withdrawal back to a Japanese bank account at a flat $30 USD fee with 1 to 2 business-day settlement.

Trading

• Spot Maker / Taker: 0.40% flat at Level 0. Discounts apply with 30-day trading volume or BMX token holdings.
• Futures Maker / Taker: 0.02% / 0.06%. Competitive with Bybit and Binance for derivatives.

All-in cost for a LegendTrading bank transfer into USDT typically lands around 1.5%, well below card purchase fees and without the operational complexity of moving funds between platforms.

Best USDT Exchanges in Japan

The table below ranks the top cryptocurrency exchanges in Japan for USDT, based on JPY funding method, regulatory standing, trading fees, and asset range

Regulatory Status of USDT in Japan

Japan operates one of the oldest retail crypto licensing regimes globally. The Payment Services Act, amended in 2017 after the Coincheck hack, requires any crypto exchange serving Japanese residents to register with the FSA as a Crypto-Asset Exchange Service Provider (CAESP). The framework tightened in June 2023 to bring foreign-issued stablecoins under a licensed intermediary model.

Three authorities and one self-regulator share oversight:

The FSA is actively enforcing. In February 2025 it asked Apple to remove Bybit, Bitget, MEXC, KuCoin, LBank, and Bitcastle from the Japanese App Store. These remain reachable via browser, though new downloads are blocked. BitMart sits outside that round, partly due to lower Japan marketing presence, with no guarantee it holds.

For USDT specifically, only registered Electronic Payment Instruments Exchange Providers can distribute foreign stablecoins to Japanese retail. SBI VC Trade secured that license first for USDC in March 2025. USDT has no equivalent approved domestic channel as of April 2026, which is why Japanese demand for it flows offshore.

Tax Implications of USDT in Japan

Japan taxes crypto heavily, with a reform pipeline that may soften treatment from 2027. Active USDT traders need to understand both the current rules and the direction of travel.

• Current classification is miscellaneous income (雑所得). Under NTA guidance, profits from crypto sales, swaps, or payments go on your individual tax return as miscellaneous income. Rates are progressive, combining national tax up to 45% plus 10% local inhabitant tax for a top marginal rate of 55%.
• Every disposal is a taxable event. Selling USDT for JPY, swapping USDT for another crypto, or using USDT for payment all trigger realization. The taxable amount is the JPY-equivalent gain at transaction time, calculated against your cost basis.
• Crypto-to-crypto trades are taxable. Unlike Malaysia or Singapore, Japan does not give passive investors a pass on token-to-token trades. JPY to BTC to USDT counts as two events, each needing records.
• 200,000 JPY threshold for salaried workers. If your total miscellaneous income across all sources stays under 200,000 JPY in a tax year, no national income tax return is required, though local inhabitant tax reporting still applies. This de minimis rule is the single most useful planning lever for small-scale traders.
• Loss limitations. Losses on miscellaneous income cannot offset salary, dividends, or capital gains, and cannot be carried forward. This is the harshest feature of the current regime for active traders.
• Filing window is 16 February to 15 March for the prior calendar year. Late filing attracts penalties and delinquent tax interest.
• Planned reform. The FSA's November 2025 proposal would move 105 specified crypto assets to a flat 20% tax rate under the FIEA framework, targeted for 2027 implementation. The rate would apply only to assets traded on FSA-registered exchanges, meaning offshore USDT trading may stay under the miscellaneous income regime even after reform.

💡 For active users: Japanese tax software like Cryptact and Gtax supports BitMart, Bybit, and other offshore venues through CSV imports and outputs NTA-compliant 雑所得 schedules. Consult a Japanese licensed tax accountant (税理士) familiar with digital assets before filing anything complex, especially across multiple offshore venues.

Why Japanese Users Hold USDT

USDT demand in Japan runs differently from Southeast Asia or Latin America. The yen is a G7 currency with deep convertibility, so the remittance use case is weaker. Demand instead tracks three specific conditions:

• Yen debasement hedge. USD/JPY sat around 80 in 2012, touched 162 in July 2024, and recovered to around 150 in April 2026. Households with overseas expenses, children studying abroad, or import exposure have watched two decades of purchasing-power erosion. USDT is the simplest way to hold a dollar-pegged asset without opening a foreign brokerage or navigating USD deposit minimums at SMBC or MUFG.
• Yield versus near-zero domestic deposits. Japanese megabank ordinary deposit rates sat at 0.20% to 0.35% through early 2026, below every meaningful benchmark. Centralised exchange earn products on USDT typically quote 4% to 8% APY for flexible deposits. The yield gap is substantial enough that even conservative Japanese savers with modest crypto exposure route a portion of cash into stablecoin yield deliberately.
• Trading pair access. The 105 or so crypto-assets listed across FSA-registered domestic exchanges exclude most of the assets active Japanese traders want to touch. Hyperliquid, Solana memes, emerging L2s, and many mid-cap tokens trade exclusively against USDT pairs on offshore venues. Anyone stepping beyond the FSA perimeter needs USDT as the base pair.

Final Thoughts

BitMart covers a specific use case: Japanese users who want deep USDT pair access, competitive spot fees after tier progression, and a venue outside the FSA perimeter where the approved domestic rails do not serve USDT.

If staying inside FSA coverage matters more than USDT specifically, SBI VC Trade is a trusted option for USDC and the only domestic venue with a stablecoin license, while Bitbank and bitFlyer remain the strongest options for BTC, ETH, and major altcoin exposure with yen rails.

Across any setup, keep JPY-denominated records per trade, tag each transfer between domestic and offshore venues for Travel Rule compliance, and treat exchange balances as operational capital rather than long-term storage. Self-custody remains the correct answer for anything outside an active trading window.