XT.COM's referral code is NOVA888. Where it goes, whether it still works and what it earns: up to 70% back via Quant Nova, 60% at Lv.1, rebinding for old users.
XT.COM referral code (invite code): NOVA888. Uppercase, the same code Binance, OKX, Bybit and Bitget use; only WEEX's lowercase nova888 and MEXC's mexc-NOVA888 are the exceptions.
Registering with it earns a fee rebate of up to 70% — 20% returned automatically by XT.COM plus up to 50% more by tier. And Lv.1 already pays 60% with no threshold, so there is no volume requirement to climb first.
The code is NOVA888. The button below uses a dedicated link that already carries it; registering manually means entering it in the "Referral code (optional)" field yourself.
The XT.COM signup page ("Sign up" in the top right on the website; on the app, "Get started" on the home screen → "Sign up now") has a "Referral code (optional)" field on the same screen as the email or phone number: enter NOVA888 and submit. Entering through the link above fills it automatically, with nothing to type.
How much does it earn?
By tier. What sets XT.COM apart is how high the starting point is — the lowest tier already pays 60%, and the ceiling is 70%:
Fee rebate tiers
Tier
Binance
OKX
Bybit
Gate
Bitget
MEXC
WEEX
XT.COM
Lv.1
20% + 10%
20% +
30%
20% + 40%
20% + 20%
20% + 30%
20% + 40%
20% + 40%
Lv.2
20% + 11%
20% +
31%
20% + 41%
20% + 21%
20% + 31%
20% + 41%
20% + 41%
Lv.3
20% + 12%
20% +
32%
20% + 42%
20% + 22%
20% + 32%
20% + 42%
20% + 42%
Lv.4
20% + 13%
20% +
33%
20% + 43%
20% + 23%
20% + 33%
20% + 43%
20% + 43%
Lv.5
20% + 14%
20% +
34%
20% + 44%
20% + 24%
20% + 34%
20% + 44%
20% + 44%
SVIP
20% + 15%
20% +
35%
20% + 45%
20% + 25%
20% + 35%
20% + 45%
20% + 45%
Supernova†
20% + 20%
20% +
40%
20% + 50%
20% + 30%
20% + 40%
20% + 50%
20% + 50%
† This tier is invitation-only. If you trade at high volume, hold exchange VIP status, or run quantitative strategies, to apply for a direct upgrade to Supernova, our highest tier.
Actual rates vary by tier and exchange; live figures are shown on the platform.
Using XT.COM futures rates (taker 0.06%, maker 0.04%) at 70% taker fills, the blended rate is 0.054%:
Monthly volume
Monthly fee
At 20% (auto only)
At 70% (bound, max tier)
Yearly gap
100,000 USDT
54 USDT
10.8
37.8
~324
500,000 USDT
270 USDT
54
189
~1,620
2,000,000 USDT
1,080 USDT
216
756
~6,480
The gap is especially worth working out on XT.COM, because its 0.2% spot rate is the highest of the eight — the same percentage gap converts into more money. The 0.06% futures taker sits mid-pack, and with the 70% rebate stacked the effective rate ranks third of the eight. Full comparison in the XT.COM fee rebate guide.
The three ways people get this wrong
Assuming it can be added later. An XT.COM referral code can only be entered at signup; once the account exists it cannot be added or changed. Miss it and rebinding is the only route.
Clicking another referral link mid-signup. The later one overwrites the first. Pick your code and go through that one link end to end.
Typing another exchange's code. XT.COM uses uppercase NOVA888; carrying over WEEX's lowercase nova888 or MEXC's mexc-NOVA888 from memory means the binding never happens. Registering through the dedicated link rules this out.
Is the code still valid? Does it expire?
NOVA888 is a long-term partnership code between Quant Nova and XT.COM, not a limited-time campaign code, and has no expiry date. The rebate percentage moves with your tier, but the binding itself never lapses.
Already have an XT.COM account?
The code cannot be backfilled, but rebinding on XT.COM is the simplest of the eight: register again through the dedicated link with a phone number or email never used on XT.COM. No KYC is needed, and under the official withdrawal limit guide an unverified account can withdraw 200,000 USDT per day. Steps in the XT.COM rebind guide.
Need help? Contact support
For any binding or rebate question, or to confirm what OKX offers beyond the 20% base, reach our support through the channels below.
If you trade at high volume, hold exchange VIP status, or run quantitative strategies, you can also apply here for an upgrade to Supernova — our highest tier, with the highest rebate.
Are the XT.COM referral code and invite code the same thing?
Yes. Referral code, invite code and invitation code all mean the same field entered at signup, and XT.COM's code is NOVA888.
Does the code discount fees?
The rate you see when placing an order does not change; XT.COM charges first and refunds later: the exchange returns 20% automatically, and once your UID is bound through Quant Nova, up to 50% more by tier is added on top, for up to 70% combined.
What happens if I skip the code?
That 20% becomes someone else's commission entirely, you get nothing, and it cannot be added afterwards. Entering NOVA888 does not cost you anything extra.
What do I do after using the code?
Bind your XT.COM UID on the Quant Nova rebate site. The code decides the first layer's 20%; the second layer's extra rebate only starts accruing once your UID is bound.
XT.COM's spot fees are that high — is it still worth using?
For futures, yes: with the 70% rebate stacked, the effective rate is below Bitget, Binance and Bybit. For spot, XT.COM is not recommended — even after 70% back, 0.2% is still above the other exchanges.
Binance 
OKX 
Bybit 
Gate 
Bitget 
MEXC 
WEEX 
Telegram · @quant_nova