It depends on how much capital gains and 1099-INT income you have.
None of your income goes on your parent's return. A dependent child must file a tax return for 2020 if he had any of the following:
- Total income (wages, salaries, taxable scholarship etc.) of more than $12,400 (2020).
- Unearned income (interest, dividends, capital gains, unemployment) of more than $1100.
- Unearned income over $350 and gross income of more than $1100
- Household employee income (e.g. baby sitting, lawn mowing) over $2100 ($12,400 if under age 18)
- Other self employment income over $432, including money on a form 1099-NEC
