Thanks for checking out the Community space, Starry.
I've checked your posts and found that you've published similar questions twice. Please know that the identical one has already been answered by my colleague, LeizylM.
You can view her answer through this link where she explained the steps on how to manage your GST rates: https://quickbooks.intuit.com/learn-support/en-sg/other-questions/re-can-t-change-gst-rates/01/12371....
To learn how to pay the sales tax that you owe and update your rates to make sure you collect the right amount, I recommend reading these articles:
I'll be right here to continue helping if you have follow-up questions regarding this matter. Assistance is just a post away, Starry!
