This is my first time including long term stock sale in my personal taxes. I am using TURBOTAX DESKTOP HOME AND BUSINESS TAX YEAR 2021 MAC DOWNLOAD WITH STATE. I've read online that long term cap gains are taxed at the lower rate, in my case it should be 15%. However, when I input information about long term stocks sold, my Federal Tax Due number increases by amount which is larger than 15% form the capital gain amount.
Why Federal Increase as % of Capital Gain is greater than 15% and why the percentage goes up when I input more info on the long term stocks sold? See table below to better understand.
| | No Stocks | My Stocks | My Stocks + Spouse |
| Short Term Gain | $0 | $0 | $413 |
| Long Term Cap Gain | $0 | $24,115 | $41,998 |
| Federal Amount Due | $6,336 | $10,415 | $13,891 |
| GA State Amount Due | -$575 | $811 | $1,863 |
| | | | |
| Federal Increase in $ | $0 | $4,079 | $7,555 |
| Federal Increase as % of Cap Gain | $0 | 16.91% | 17.99% |
| | | | |
| GA Increase $ | $0 | $1,386 | $2,438 |
| GA Increase as % of Cap Gain | 0.00% | 5.75% | 5.80% |
