Full terms and conditions: https://www.cardup.co/personal/terms/incometax2026
1. What is the promo code 173VTAXONE?
The promo code 173VTAXONE offers a discounted CardUp fee of 1.73% for one-off income tax payments.
2. Who is eligible to use this promo code?
CardUp personal account users
Individuals paying their own income tax
3. Which cards are eligible?
Singapore-issued Visa credit cards
China UnionPay credit cards
4. Which cards are not eligible?
Mastercard
American Express
Debit cards
Prepaid cards
Foreign-issued cards
5. When is the promo valid?
Payments must be scheduled on or before 12 June 2026 (before 6pm SGT).
6. Can I use the promo after the deadline?
No. Payments scheduled after the promo deadline will not qualify.
7. What qualifies as a one-off payment?
A single payment made toward your income tax bill (not recurring instalments).
8. How many times can I use this promo code?
The promo code can be used once per user.
9. Are there any timing requirements for payment?
Yes:
Payment must be scheduled at least 3 business days before the tax due date
The tax due date must be on or before 17 June 2026
10. Can I pay more than my tax bill amount?
No. The payment must not exceed the amount stated in your official tax notice.
11. What transactions are restricted under this promo?
This promo does not apply to:
Non-income tax payments
Payments outside the promo period
Ineligible card types
Next-day payment fees
Foreign currency transactions
Transactions combined with other promotions
12. Will I earn credit card rewards?
Reward eligibility depends on your credit card issuer’s terms and conditions. For card rewards eligibility and exclusion, refer to our FAQ here
13. Can I use this promo for someone else’s tax bill?
No. The payment must be for your own tax liability and must match your account details.