Trading Overview and Fee Structure

Understanding the trading mechanics and fee structure of any digital asset platform is essential for both new and experienced investors. This comprehensive guide outlines key trading limits, deposit and withdrawal rules, and detailed fee schedules across spot, margin, and exchange trading services. Whether you're trading Bitcoin (BTC), Ethereum (ETH), or emerging tokens like KAIA, this article provides everything you need to navigate your transactions efficiently and cost-effectively.

Spot Trading: Buy and Sell Limits

Spot trading allows users to instantly buy or sell cryptocurrencies at current market prices. The following parameters define the boundaries for each supported asset:

Trading Unit and Minimum/Maximum Limits

Note: For security, certain transactions may require password authentication. If you've forgotten your password, assistance is available through standard support channels.

How Trade Amounts Are Calculated

• When Buying: The system automatically calculates the maximum quantity you can purchase based on the amount entered. Any fractional amount below the trading unit is truncated.

  Example: If BTC is priced at ¥6,000,000 and you enter ¥10,000, the system will calculate a purchase of 0.00166666 BTC.

• When Selling: The JPY value is calculated from the entered quantity. Sub-yen fractions are rounded down.

  Example: Selling 0.00166666 BTC at ¥6,000,000 results in ¥9,999. Even with slight quantity adjustments (e.g., 0.0016665 BTC), the received amount remains ¥9,999 due to truncation.

👉 Discover how to optimize your spot trades with real-time pricing tools

Margin Trading: Leverage and Position Limits

Margin trading enables users to trade with borrowed funds, increasing potential returns—and risks. Only short selling and repayment buying are supported.

Key Parameters

Risk Management Note: Platform-wide position caps apply in addition to individual limits. KAIA also has hourly trading volume restrictions.

Exchange Trading: Order Book Mechanics

Exchange trading operates via an order book model, offering tighter spreads and advanced trading strategies.

Trading Specifications for KAIA/JPY

This structure supports larger institutional-style orders while maintaining market stability.

Deposit and Withdrawal Limits

Managing your funds securely involves understanding deposit and withdrawal thresholds.

Crypto Deposit & Withdrawal Limits

Important Notes:

• Partial deposits (e.g., less than 1 KAIA) are held until the total reaches the minimum threshold.
• Decimal precision beyond supported levels may not be displayed or withdrawable.
• FLR cannot be deposited into user accounts.
• Daily withdrawal windows reset at ００:００ JST.
• Users verified after December １９, ２０２４ are subject to a ¥５００,０００ withdrawal cap for the first ３０ days post-first deposit.

👉 Learn how fast withdrawals can accelerate your investment cycle

Fiat Deposit and Withdrawal Limits

Bank and PayPay Transfers

Notes:

• Bank limits reset daily at midnight.
• PayPay limits are rolling (past ２４ hours).
• Users without full identity verification (e.g., My Number Card scan) are limited to ¥１００K withdrawals.
• Even if within limits, withdrawals may fail if PayPay balance exceeds its own cap.

Account Transfer Rules

Transfers between main and margin accounts are straightforward:

Available transfer amount excludes funds used as maintenance or initial margin.

Fee Schedule

Transparent fees help traders make informed decisions.

Spot Trading Fees

All costs are embedded in the spread—no additional commission is charged.

Margin Trading Fees

• Trading Fee: Free
• Borrowing Cost (Position Holding): Free

Despite zero explicit fees, the spread is factored into quoted prices.

Exchange Trading Fees (KAIA/JPY)

• Maker Orders: Add liquidity; placed on the order book.
• Taker Orders: Remove liquidity; immediately matched (including market orders).

Fees are applied to the total trade value (quantity × price):

• Maker Rebate: Rounded down below ¥１.
• Taker Fee: Rounded up if fractional yen.

Examples:

• Sell １,０００ KAIA at ¥１４.５ as maker:
  Fee = １４.５ × １,０００ × ０.０１％ = ¥１.４５ → Rebate: ¥１ (rounded down)
• Same trade as taker:
  Fee = ¥７.２５ → Pay: ¥８ (rounded up)
• Buy １００ KAIA at ¥９０ as maker:
  Fee = ¥０.９ → No rebate (below ¥１ threshold)

Fiat Deposit and Withdrawal Fees

Failed purchases using PayPay funds are refunded without fee.

Crypto Deposit and Withdrawal Fees

Internal transfers between LINE BITMAX users are free.

Frequently Asked Questions

Q: Are there any hidden fees in spot trading?
A: No. While there’s no direct commission, the bid-ask spread is included in the displayed price, which represents the effective trading cost.

Q: Why is my small crypto deposit not showing up immediately?
A: Deposits below the minimum threshold (e.g., less than 1 KAIA or ０.００５ ETH) are held until they reach the required amount before being credited.

Q: Can I withdraw KAIA to any wallet?
A: No. KAIA withdrawals are currently restricted to DOSI-compatible wallets only.

Q: What happens if I exceed the daily withdrawal limit?
A: Additional withdrawal requests will be rejected until the next cycle begins at midnight JST.

Q: Is margin trading truly free?
A: Yes—both trading and borrowing fees are waived. However, price spreads still apply as part of execution costs.

Q: How are maker-taker fees calculated for small trades?
A: Fees under ¥１ for makers are rounded down to zero (no rebate), while taker fees under ¥１ are rounded up to ¥１.

👉 Start trading with low fees and high liquidity today

Core Keywords

• Spot trading fees
• Margin trading limits
• Crypto withdrawal rules
• Exchange trading fees
• Fiat deposit limits
• Maker-taker fee model
• Trading unit requirements
• Daily withdrawal cap

By mastering these parameters, traders can optimize their strategies, reduce costs, and avoid common pitfalls related to limits and fees. Always review platform updates for changes that may affect your trading activity.