Health insurance as it's entered in TurboTax

I'm signing up for 'Covered California' for the first time. When insured through 'Covered California' you get government discounts depending on your estimated income. If and when your actual gross adjusted income turns out to be greater or less than what you estimated, I assume that you have to enter this somewhere in TurboTax? For now, I am just wanting to test out entering numbers in TurboTax in order to understand how 'Covered California' affects my taxes based on various levels of income.