About the standard chartered jumpstart account, it's 2% interest p.a right? Meaning if I have 20k in my account I'll get 400$ for the year that will be split up and credited monthly into my account?

The interest is calculated at the end of each day and credit to your account at the end of each month.

Assuming that you keep $20k in your account everyday for one month, you will receive an interest of $20,000 x 2%/12 = $33.33

Thereafter, take note that balance above $20k will earn an interest rate of 0.1% per annum.

Hence, if you keep $20,033.33 for the second month, you will get

$20,000 x 2%/12 + $33.33 x 0.1%/12.

And the mathmatics continue accordingly.

I share quality content on estate planning and financial planning here.​​​

Interested is credited monthly so its 2/12% per month, but note that the interest remains in the account, and anything above 20k doesn't get the 2%.