Bitbase exchange deep dive: USDT-M perpetuals, fees, funding and account settings

Every figure below comes from Bitbase's own fee page, futures page, blog and live market data, with the check date noted.

What a Bitbase perpetual is

Bitbase describes its perpetuals as USDT-settled derivative contracts with no expiry, which can be traded long or short, with funding used to keep the contract price aligned with the spot index (Bitbase futures page, checked 30 Oct 2026). On 30 October 2026 Bitbase's public symbol list returned 734 tradable USDT-margined perpetual pairs, covering majors such as BTC, ETH and SOL as well as smaller-cap tokens. On BTC, ETH and SOL the minimum order value was 5 USDT.

How the mark price is set

Bitbase's help center explains that the mark price equals the current index price plus a moving average basis. The basis is the gap between the futures order book midpoint and the index price. It is sampled every second over the latest 30 seconds, with recent samples weighted more heavily (a 15 second half-life on major pairs and 30 seconds on other pairs), and the mark price updates every second (Bitbase Help Center, "Explanation of Bitbase futures Mark Price", checked 30 Oct 2026). Liquidation is triggered by the clearing engine based on the maintenance margin rate. Because the mark price is anchored to the index rather than the last trade, a brief spike on a single order book is less likely to cause a liquidation on its own.

Trading fees

Bitbase's USDT-M futures schedule has eight levels (Bitbase fee page and "Bitbase Futures Fees" blog, checked 30 Oct 2026):

Any one of the three measures can qualify you, and the highest qualifying measure decides your level. Bitbase recalculates levels daily at 00:00 UTC. Balance snapshots include Spot, USDT-M futures, USDC futures and Earn accounts. Bitbase notes the live fee page is the authoritative version, so check it before relying on any tier.

For spot, Bitbase's product guide lists a base fee of 0.1000% for both maker and taker orders.

Funding

Funding is a payment between long and short holders, not a charge kept by the exchange. Bitbase settles it typically every 8 hours, and only positions open at settlement pay or receive it (Bitbase futures page, checked 30 Oct 2026). When the contract trades above the index, longs pay shorts; when it trades below, shorts pay longs. On 30 October 2026 at 2:55 PM ET, Bitbase's market data showed a BTC/USDT funding rate of 0.02% per 8-hour interval, with a limit of plus or minus 2% per interval.

Funding is charged on the position's full notional value, so at high leverage it is large compared with the margin posted. VIP levels don't change it.

Account settings to choose before trading

• Cross or isolated margin. Cross margin draws on the whole futures balance, while isolated margin limits a position's risk to the margin assigned to it. Bitbase supports both.
• One-way or hedge mode. Bitbase supports bidirectional positions, so you can hold a long and a short on the same pair at the same time.
• Leverage. Leverage can be changed per pair, and each asset's risk parameters set its maximum. Bitbase's market data shows 20x as the default setting for BTC, ETH and SOL.
• Order types. Limit and market orders are available, along with conditional tools Bitbase lists as Reverse Position and One-click Close.

Worked example: the full cost of one trade

Bitbase's own fee guide uses a 10,000 USDT position: a round trip costs 12 USDT if both legs are taker orders and 4 USDT if both are maker orders. Adding one funding settlement at the 0.02% rate observed on 30 October gives:

At 20x leverage the margin is 500 USDT, so the all-taker total equals 2.8% of the margin before the price moves at all. This is why choosing maker or taker for each leg matters as much as your VIP level does.

Mistakes to avoid

1. Measuring costs against margin. Fees and funding are both charged on notional value.
2. Forgetting that funding repeats. It settles three times a day, so a long hold can cost more in funding than in trading fees.
3. Using cross margin for a speculative side trade. A loss on that trade can draw on margin that is backing other positions.
4. Assuming a short closes a long. In hedge mode, it opens a separate position instead.
5. Overlooking the balance test. Reaching VIP 1 through 30,000 USDT in balance is far easier than reaching it through 5,000,000 USDT of volume.

Identity verification and withdrawal limits

Bitbase's help center says your withdrawal limits and available features depend on your KYC verification status. Supported documents are a passport, national ID card or driver's license, and only users aged 18 to 65 can complete KYC (Bitbase Help Center, "Explanation of KYC Requirements and Account Permission Limits", checked 30 Oct 2026). Check that page for the current daily limits before you plan a large withdrawal. A separate security check, by two-factor authentication, email code or SMS code, runs on every withdrawal.

Bitbase also has a fiat gateway that routes through third-party payment providers, with priority given to local e-wallets and QR payment systems for BDT, PHP and VND. Users have to complete Bitbase's KYC verification before using Quick Buy, and the payment providers may run their own separate checks (Bitbase Help Center, "Instant Crypto Buy User Guide and FAQs", checked 30 Oct 2026). Crypto bought through Quick Buy is subject to a 24-hour withdrawal restriction. The pages checked for this guide don't say whether verification is required to trade crypto spot or futures.

Proof of reserves

Bitbase publishes a reserve ratio and a Merkle root hash for BTC, ETH, USDT and USDC every month, based on balances snapshotted at 00:00 UTC+8 on the 1st (Bitbase Proof of Reserves page, checked 30 Oct 2026). Logged-in users can confirm that their own balance was included in a snapshot. Bitbase notes that proof of reserves is not an audit. For August 2026 it reported BTC at 100.78%, ETH at 109.03%, USDT at 101.96% and USDC at 109.06% (Bitbase blog, "Is Bitbase Safe?", checked 30 Oct 2026). A ratio of 100% or more means reserves cover the users' balances in that asset at the snapshot.

Sources: Bitbase fee page, Bitbase futures page, Bitbase Proof of Reserves page, Bitbase blog posts "Bitbase Futures Fees" (dated 20 Sep 2026), "Core Product and Execution Fee Guidelines", "Bitbase KYC and Verification" and "Is Bitbase Safe?", Bitbase Help Center articles on mark price, KYC limits, Quick Buy and the VIP fee schedule, and Bitbase public market data. All were checked on 30 Oct 2026. Trading leveraged products carries significant risk, including the loss of your capital.

Not financial advice. Perpetual futures are leveraged and can lose more than you expect. Read our methodology and disclaimer.