I am also on DBS Multiplier (hence, my salary goes there), so how I get the bonus interest for UOB is via Giro deductions.
I don’t use the UOB One account as my operating account. Hence, I need to automate it so that I don’t have to monitor it at all. The only thing I need to consciously do is to spend at least $500 to my UOB One credit card every month.
Every month, there are only 6 transactions on my UOB One account (and none of it requires me to take any action):
(1) Giro credit from DBS on every 1st (to pay for the estimated Giro deductions from this account for the month);
(2) 2 Giro deductions from IRAS on every 5th (for my property taxes);
(3) a Giro deduction from UOB card centre for my SingTel credit card (which I charge my SingTel bill to and get monthly rebates) on every 20th;
(4) normal interest credited at the end of every month; &
(5) bonus interest credited on every 2nd.