Futures Earn APR: Base Interest, Boosters and Eligibility

This is not financial advice. Cryptocurrency is unregulated in the UK; profits may be subject to tax; and the value of any investment could fall.

Futures Earn APR is the annualised rate used to calculate interest on eligible funds in a futures account. Your actual earnings depend on the balance that qualifies, the applicable rate and how long each condition is met. Higher rates can depend on qualifying positions or a temporary booster, each with separate limits.

If you already trade futures, working out the interest on your account balance means checking several rules. BYDFi’s Futures Earn has base interest, a rate linked to eligible position value and voucher-based boosts. Trading results remain separate from the interest earned.

Base Futures Earn interest: do you need an open position?

BYDFi lists a 3% base APR and says eligible balances can earn it without an open futures position. Its help FAQ dated 28 October 2026 specifies enabling Futures Earn and maintaining at least 10 USDT of eligible principal in the Futures account. The product page currently lists USDT as a supported asset.

APR means annual percentage rate. To put 3% into everyday terms, consider a hypothetical eligible balance of 1,000 USDT earning that rate for a full day:

1,000 × 0.03 ÷ 365 = approximately 0.0822 USDT.

Over 30 days, that would be about 2.47 USDT if the principal and rate stayed unchanged. This simple estimate excludes compounding and trading results. A yearly percentage can look substantial while producing a modest amount over a short holding period.

BYDFi says eligible funds remain available for normal futures trading after activation. Using them as margin can still expose them to trading losses and liquidation.

How position value changes the Futures Earn APR

The balance earning interest and the position value determining the rate are different figures. Principal is the eligible wallet balance. Position value measures qualifying futures exposure under the platform’s calculation rules.

The tier table displayed on 2 November 2026 showed:

The table lists a 50,000 USDT principal cap for these tiers. That cap concerns the balance receiving the tier rate; it is separate from the position value needed to reach a tier. Check the applicable rules for any balance above it.

Use the displayed tier APR in the interest calculation. Adding the 3% base rate again would overstate the rate shown in this table. The estimated futures interest rate can change with market conditions and platform rules. Your applicable tier can change as your qualifying position value changes.

The BYDFi Futures Earn interest rules provide the current tier table and explain how eligible balances and positions are assessed.

Futures Earn balance eligibility and snapshots

The balance visible when you open an account screen may differ from the principal used to calculate interest. BYDFi’s current product FAQ says the calculation uses an average of multiple snapshots taken during the accrual period. Transferring funds shortly before checking the screen therefore does not establish that the full balance qualified throughout that period.

Position eligibility has its own restrictions. The product FAQ counts standard futures positions opened manually in the main account. It excludes Copy Trading, Grid Trading, Event Futures, sub-account positions and position airdrops from the position-value calculation.

Positions sharing the same underlying asset are netted. In the product page’s example, equal BTC long and short position values offset to zero. Adding their gross sizes together would overstate the qualifying exposure. Coin-margined futures and the USDCUSDT perpetual contract are also excluded under the product page’s rules.

Closing or reducing positions can change the rate calculation. Liquidation can reduce the eligible balance as well as the exposure counted. Account risk controls or compliance restrictions can also disable Futures Earn.

Futures Earn APR boosters: read the voucher limits

An APR Booster is a reward voucher that can provide additional interest for a limited period. It has separate conditions from the standard position-based tiers.

Check the voucher’s minimum principal, maximum principal eligible for the boost, supported product, start and end times, and boosted-interest cap. A principal cap limits how much money receives the boost. An interest cap limits the additional reward payable.

The product FAQ gives this formula for a daily boost estimate:

Eligible principal × booster APR ÷ 365.

Suppose, hypothetically, a voucher offers a 50% booster APR on 1,000 USDT, lasts two days and caps additional interest at 2 USDT. Assume the balance meets all the voucher’s other conditions. The uncapped daily calculation is approximately 1.37 USDT, but the total boost stops at 2 USDT across the two days.

The 50% figure is an annualised rate used for that temporary calculation. It does not mean the voucher pays half the principal over its two-day life.

Additional principal can receive a boost only while its validity window remains open and the eligible-principal cap allows it. Check the voucher status and the boosted-interest entry under Interest Accrued to see whether the reward is active.

Compare interest with the cost of qualifying

When reviewing Futures Earn interest components, record the base or tier earnings and any voucher reward separately. BYDFi’s product FAQ says earnings are credited to the Spot account the following day. Since the rewards arrive in Spot, check what happens to them before assuming they compound in your Futures balance.

Interest also needs to be assessed alongside trading fees, funding payments and changes in position value. Opening or enlarging a leveraged position solely to reach a higher APR can create losses far exceeding the extra interest. Even a balance without open positions remains exposed to platform and digital-asset risks.

Availability depends on your jurisdiction and account eligibility. For a useful estimate, use the qualifying balance recorded during the relevant period, apply the appropriate rate and enforce every cap. Then compare the resulting interest with the costs and risks of the trading activity involved before deciding whether it fits your plans.