the tax rate on AAPL dividends is a little more complicated. AAPL dividends are qualified dividends and a special rule applies to them and net long-term capital gains. TT automatically uses the qualified dividend and long term capital gain worksheet to determine the tax.
if you want to see the worksheet you can use the one from the 2019 instructions on page D16.
https://www.irs.gov/pub/irs-pdf/i1040sd.pdf
maybe a better way to say what the tax rate on qualified dividends is - is to say it can range from 0 to 20%
for example in 2019 a single taxpayer with $100000 in qualified dividends and $25000 in other taxable income would pay a tax of about $12800 on the dividends and about $2800 in taxes on the income
