Fusion Bank CASH82P: Is the 21% Coupon Worth It? What a Week Pays, What HK$7,306 Really Takes, and 10 Things to Know

Download the Fusion Bank app through our link, enter invitation code CASH82P when you open the account, and a successful opening lands you three time-deposit coupons. The invitation page says you can earn up to HK$7,306 and US$1,000 in interest, at rates up to 21% p.a.; that's the ceiling with all three coupons maxed out, not something everyone pockets automatically.

According to unofficial welcome information, this round runs to 31 December 2026 and the three coupons are a one-week HKD deposit (21% p.a. in total including the base rate, on HK$10,000 to HK$100,000), a three-month HKD deposit and a three-month USD deposit (4%). Fusion hasn't published these details officially, so once you're in, check each coupon's rate, principal cap, tenor and expiry in the app.

Full disclosure: CASH82P is our invitation code. Open an account with it and Fusion pays us a referral reward; your coupons don't shrink because of it.

Fusion counts HKD deposit interest as simple interest on a 365-day year: principal × annual rate ÷ 365 × days. At 21% in total for seven days, HK$10,000 earns about HK$40.27, HK$50,000 about HK$201.37 and HK$100,000 about HK$402.74.

So a week at 21% p.a. really returns about 0.40% of your money. It's a one-off: after maturity you're back on ordinary board rates, so don't treat 21% as a full-year return.

The one-week coupon tops out at about HK$403, so the other HK$6,900 or so of the HK$7,306 has to come from the three-month HKD coupon. At around 2.8% p.a. for 90 days, you'd need to park about HK$1,000,000 to hit that number.

On the US$1,000 side, if the three-month USD coupon pays 4% p.a., Fusion counts USD deposits on a 360-day year, which means about US$100,000 for three months. Play with HK$100,000 and the real haul is about HK$403, plus whatever the three-month coupons pay on your own principal.

Fusion's published terms for its previous referral round (December 2024 to January 2025) say coupons land within 7 working days of qualifying, with an app push and an SMS; you'll find them under "Me > Offer Centre > Bank Coupons"; and the one-week coupon lasts 7 calendar days from issue, then it's gone for good.

The same terms also say each coupon works for one qualifying deposit and counts as used once the money goes in; you can't pass it on or cash it out, and you can't stack it with other account-opening offers; quotas are first come, first served. This round's terms sit on the coupon in the app, so check the expiry before you move any money.

The promotion terms are clear: take out a coupon deposit early and the bonus disappears, you only get the bank's base rate, and no new coupon comes. Early withdrawal also needs the bank's say-so; the service charges set a penalty based on the amount, the gap between a reference rate and your deposit rate and the days left, with a minimum of HK$200 (or the foreign-currency equivalent).

So only use money you won't touch for the whole term. Next month's rent or tax bill shouldn't be locked up for a few hundred dollars of interest.

Fusion Bank Limited is a virtual bank licensed under the Banking Ordinance. Formerly Infinium Limited, it got its HKMA banking licence on 9 May 2019, changed its name that July and opened fully in December 2020. It's part of the Tencent Holdings group, and other shareholders include ICBC (Asia), HKEX and Hillhouse Capital.

Fusion is a Deposit Protection Scheme member, covering eligible deposits up to HK$800,000 per person. There are no branches: opening, deposits, exchange and support all go through the app, and the hotline is +852 2111 2688.

You get HKD, RMB and USD deposits with no account fee, and the flexible deposit plan starts at HK$100. On the investing side, funds start at HK$10 or US$1, some carry subscription fees as low as 0%, and money market fund cash-outs can land the same day (T+0).

FX covers HKD, RMB, USD, EUR, JPY and AUD with no handling fee, but only Monday to Friday, 9am to 5pm, outside public holidays. Local FPS is free, and money sent into a Fusion account from overseas carries no receiving fee.

No account fee, no minimum balance fee, and FPS plus incoming cross-border transfers are free. Sending money overseas costs HK$50 a go, plus any intermediary bank charge.

FX has no handling fee, and the app's quoted rate applies. The biggest hidden cost is breaking a deposit early: you lose the bonus and pay at least HK$200, which can wipe out a week's coupon interest.

Fusion runs deposit promotions for existing customers from time to time. Take October 2026's "息多多" round: open a 息多多 savings account in the app between 1 and 31 October and move in at least HK$10,000 or US$1,000 of new funds (deposits in the period minus your 30 September balance), up to HK$10,000,000 or US$1,250,000.

HKD paid 2.60% p.a. (to 30 November), 2.90% (December) and 3.10% (January 2027); USD paid 3.00%, 3.20% and 5.00%. Interest lands on the first of each month, and withdrawals cut the balance earning interest. Open in October and your 30 September balance is zero, so everything you deposit counts as new money; quotas are limited and every round is different.

On 24 October 2026 the Fusion Bank app scored 3.5 on the Hong Kong App Store (456 ratings) and 3.3 on Google Play (about 1,600 ratings), with more than 100,000 downloads.

Fans mostly mention competitive savings and deposit rates and a smooth sign-up; the grumbles focus on approvals taking longer than the app says, document uploads accepted only in certain formats, and slow replies after calling support.

Go for it: Hong Kong folks with HK$10,000 to HK$100,000 of spare cash who can park it for a week and will check the coupon terms in the app; plus anyone with a big pot who already plans a three-month HKD or USD deposit.

Skip it: if you might need the money any day; if you're treating 21% as a yearly return; if you want branches or credit card rewards; or if you already bank with Fusion (look at the existing-customer offers instead).