I've been managing an online business for the last 5 years, and paying myself a salary of S$11 000 per month. As a SPR, my monthly CPF contribution is S$1800 which I believe is the max amount for CPF contribution.
I'm now keen to develop a business in teaching, and have signed up as a supply teacher here. I hope to contribute to manage my online business (though it pretty much runs by itself now) and pay myself the same salary (for purpose of mortgage as well as PR renewal)
My question here is if I'm already contributing the max CPF, do I still need to contribute CPF from my teaching job?