RentSmart Review: Service Fees for Paying Rent by Card, What the Card Rewards Are Worth, Transfer Times and Invite Code RSf0y9zp
A full review of the RentSmart rent payment app: the operator and its security arrangements, what can be paid and the documents required, the 1.6% Mastercard and 2.0% to 2.4% Visa and UnionPay service fees, the rewards on HK$20,000 monthly rent, the three-working-day transfer, the referral reward conditions and user ratings.
Last updated 24 October 2026

Best for
Hong Kong tenants with a Hong Kong identity card and a tenancy document, whose credit card earns online-spending rebates or miles worth more than the service fee, and who can pay at least three working days before the rent is due.
RentSmart lets tenants pay rent with a Hong Kong-issued credit card, and then transfers the money to the landlord's bank account within three working days; the landlord does not need to register. The service fee is what decides the matter: 1.6% for Mastercard and 2.0% to 2.4% for Visa and UnionPay. On monthly rent of HK$20,000, 1.6% is HK$320 a month; a card returning 1% leaves a net loss of HK$120, a card returning 2% a net gain of HK$80, and a miles card earning one mile per HK$6 amounts to buying each mile for about HK$0.096. It therefore suits only tenants who hold a high-rebate or miles card and know what they will use the miles for. Register through the link on this page with invite code RSf0y9zp, and after the first full rent payment you receive referral rewards including a Gyu-Kaku membership offer. RentSmart is not a bank and publishes no licence, so check the landlord's payment details before paying.
Pros
- Rent can be paid by credit card, and partner card issuers treat the transaction as online spending
- A 1.6% service fee for Mastercard, and as low as 1.5% on some partner bank cards
- No maximum rent, and one rent payment can be split across up to six credit cards
- The landlord does not need to register and receives an SMS when the money arrives
- Beyond residential rent, it also takes deposits, agency commission, parking, shop and mini-storage payments
- Money usually reaches the landlord within three working days, and the card's interest-free period applies
Watch-outs
- A service fee of 1.6% to 2.4%, so paying with a card that returns 1% costs more than it earns
- RentSmart is not a bank, names no licence or regulator, and its terms limit its liability to re-supplying the service
- There is no cancel button once a payment is made, and public holidays push the transfer back
- Referral rewards are released only after the first full rent payment, and the new user's reward amount is not published
- Ratings are low: 2.3 on the App Store and 2.4 on Google Play
- Customer service is available only during office hours, Monday to Friday
Current related offer
RentSmart offer pageAd / referral links — we may earn a bonus when you sign up.
Provider
RentSmart
Pay your Hong Kong rent by credit card through RentSmart and earn card rewards or miles on it. Register through this invite link (code RSf0y9zp) and complete your first full rent payment: RentSmart's official referral page says new users receive Gyu-Kaku membership offers after their first full rent payment, and its English page adds a service fee waiver on the first rent payment. RentSmart doesn't publish a new-user cash amount; the app shows your reward. T&Cs apply.
Requirement: Your first full rent payment through the RentSmart app
EasyAbout 10 minutes to register, plus your first rent paymentPayout Referral rewards unlock after you register through the invite link and complete your first full rent payment in the RentSmart app
Verified 24 October 2026
Full claim instructions are on the RentSmart offer page.
What RentSmart is: the operator and how the service works
RentSmart is operated by RentSmart Rental Services Limited, business registration number 68358631, with an office in Cyberport 3. The user pays with their own credit or debit card, and RentSmart then transfers the money to the landlord's or service provider's bank account. The terms state that the platform acts solely on the payer's instructions; the landlord need not take part or give consent.
RentSmart is not a bank or a stored value facility, and neither its website nor its terms names any licence or regulator. On security, the platform states that its payment gateway is certified under the PCI DSS payment card data security standard, that data in transit is protected with AES-256 encryption, that its servers run on Amazon Web Services, and that it does not store users' card details.
What can be paid, registration documents and approval
Besides private residential rent, RentSmart accepts rent for public housing, parking spaces, offices, shops and warehouses, as well as tenancy deposits, rent in advance, estate agency commission and mini-storage fees. Users register with a valid Hong Kong identity card and upload one legally binding tenancy document: a formal tenancy agreement, a stamp duty notice, a CR109 (notice of new letting or renewal) or an AR2 (notice of tenancy) are all accepted, provided the document clearly shows both parties' names, the property address, the rent and the term.
Approval of the tenancy usually takes one to two working days; a payment can be submitted in the meantime and is transferred once approval is complete. The payer need not be the tenant but must declare their relationship to the tenant. The landlord does not register and receives an SMS on payment, and the user receives a receipt that serves as proof of payment. Holders of a mainland Chinese identity card can also pay Hong Kong rent in renminbi through WeChat Pay, UnionPay or a verified Alipay account.
Service fees: set by card type
RentSmart's service fee depends on the card: 1.6% for Mastercard issued in Hong Kong and Macau, 2.0% to 2.4% for Visa and UnionPay, and 2.98% to 4.0% for credit or debit cards issued elsewhere. Partner cards listed in the rebate calculator carry their own rates, for example 1.5% for Bank of East Asia Visa and Mastercard, and 1.9% for some Fubon Visa cards.
The actual rate is shown on the payment page and should be checked before confirming. One rent payment can be split across up to six credit cards, which helps to fit each card's credit limit or monthly reward cap. RentSmart sets no maximum rent; the only limit is the card's available credit. If a payment cannot clear review within seven days because information is missing, it may be refunded after deduction of the service fee and a handling fee.
How the card rewards are calculated
RentSmart states that partner card issuers treat rent paid through the platform as online spending, but whether it earns rebates, miles or promotional rewards, and the monthly caps, are governed by each issuer's terms. The caps listed in the rebate calculator vary: some cashback cards cap the rebate at HK$200 to HK$300 a month, while the Mox credit card has no cap.
Transactions are usually posted to the card account within one to three working days, and some promotions count by posting date, so a payment made at the end of the month may fall into the next promotional period. The card also brings an interest-free repayment period, but if the balance is not repaid in full, revolving interest far exceeds any rebate and paying rent by card no longer makes sense.
What it is worth: monthly rent of HK$20,000
RentSmart's own example: monthly rent of HK$20,000, paid with a Standard Chartered Cathay Mastercard for eight months, earns the 26,000 Asia Miles needed for a return economy flight to Sapporo. At the 1.6% service fee, the cost is HK$320 a month, or HK$2,560 over eight months. At one mile per HK$6, that is about 3,333 miles a month and about 26,667 miles over eight months, a cost of about HK$0.096 per mile.
The arithmetic for cashback cards is more direct: a card returning 1% earns HK$200 a month, a net loss of HK$120 after the HK$320 fee, while a card returning 2% earns HK$400, a net gain of HK$80. In short, the card's online-spending rebate rate must exceed the service fee rate for there to be a real gain; for miles, it depends on what the reader considers a mile to be worth and whether they will actually redeem flights.
The referral reward and invite code RSf0y9zp
RentSmart's referral programme turns on the first full rent payment: a new user registers through an invite link and, once they have successfully paid their first full month's rent in the app, receives the referral reward. The official English referral page lists Gyu-Kaku membership offers for new users and mentions a service fee waiver on the first rent payment; the Chinese page describes these more broadly as rent offers and dining privileges. The referral page does not publish the new user's reward amount. The invite message has promoted a HK$100 rent cash voucher; after registering, rely on the reward the app shows.
How to use it: open the link on this page on your phone and the app fills in invite code RSf0y9zp; if the link opens inside WeChat, switch to the phone's browser. When registering, confirm that the code is filled in, add the tenancy and landlord payment details, and then pay the first full month's rent in the app. Before paying, check the service fee line on the payment page to confirm that any waiver or discount has been applied.
RSf0y9zp is our invite code.
Payment timing and when the money arrives
For payments completed before 11 pm on a working day, the money usually reaches the landlord's account on the third working day after the transaction; RentSmart recommends paying at least three working days before the rent is due. The transfer date is shown only after payment is complete, and public holidays push it back; one user review reports a missed rent deadline for this reason.
If a payment is selected for review, RentSmart may ask for further proof of identity or the tenancy agreement and hold the transfer until the review is complete. The app has no button to cancel a payment. If the landlord's account details are entered incorrectly, the platform will only try to recover the money and accepts no liability if it cannot, so confirm the account number and account name with the landlord before the first payment.
Risks and limitations
Between payment and transfer, the rent is handled by RentSmart, and the platform publishes no licence, trust account or segregation of funds. Its terms also exclude liability for most losses, and where it is liable, its liability is limited to re-supplying the service. A user who acts fraudulently or with gross negligence, or who is late in reporting a compromised device or passcode, bears all losses.
Paying with another person's card requires the cardholder's authorisation, and the payer bears any costs arising from chargeback disputes. RentSmart may suspend or cancel an account at its discretion. To delete an account, write to [email protected] from the registered phone number or email address; the deletion is processed after identity verification.
User ratings
As of 24 October 2026, RentSmart is rated 2.3 on the Hong Kong App Store (113 ratings) and 2.4 on Google Play (102 reviews, more than 10,000 downloads). Positive reviews mainly praise earning flights or cash rebates on rent, and customer service that replies quickly and offers advice on using cards.
Negative reviews concentrate on a few issues: the landlord's receipt date appears only after payment, with delays around holidays; payments cannot be cancelled; the app fails to open after updates, or registration and login fail; document uploads accept only JPG files; and receipts include the card service fee in the amount paid to the landlord, which has confused landlords. Customer service is available Monday to Friday from 9:30 am to 6:30 pm, by WhatsApp or email.
Who it suits, and who should look elsewhere
It suits: tenants whose credit card earns an online-spending rebate rate above the service fee rate, or who are collecting Asia Miles or other miles and plan to redeem flights; people who need to meet a credit card welcome spending requirement and for whom rent is the largest monthly outgoing; and those who can pay three working days before the due date.
It does not suit: people who hold only cards returning around 1%; anyone who cannot repay the card balance in full; and tenants whose tenancy documents are incomplete or whose landlord requires same-day payment. Anyone using it only for the referral reward should first compare the service fee with what the reward is actually worth.
FAQ
- What is the RentSmart invite code?
- RSf0y9zp. Opening the link on this page on your phone fills it in automatically; confirm that the code is filled in when you register.
- What reward does a new user receive?
- Referral rewards follow the first full rent payment. The official referral page lists a Gyu-Kaku membership offer, and the English page also mentions a service fee waiver on the first rent payment; the new user's reward is as shown in the app.
- What is the service fee?
- 1.6% for Mastercard issued in Hong Kong and Macau, 2.0% to 2.4% for Visa and UnionPay, and 2.98% to 4.0% for cards issued elsewhere; the exact rate is shown on the payment page.
- Does the landlord need to register?
- No. RentSmart transfers directly to the landlord's bank account, and the landlord receives an SMS when it arrives; the platform suggests telling the landlord after the first payment.
- How long does the money take to reach the landlord?
- Paid before 11 pm on a working day, it usually arrives on the third working day. Pay at least three working days before the due date; public holidays push the date back.
- Which documents are needed?
- A valid Hong Kong identity card, plus one of a formal tenancy agreement, a stamp duty notice, a CR109 or an AR2 showing both parties' names, the address, the rent and the term.
- Can a payment be cancelled?
- The app has no cancel button. If something needs changing, contact customer service by WhatsApp or email straight away; for payments sent with wrong account details, RentSmart will only try to recover the money.