Awesome Champ @Bsch4477 means the IRS requires taxpayers to report all taxable income, no matter how small. The IRS says: “Generally, an amount included in your income is taxable unless it is specifically exempted by law. Income that is taxable must be reported on your return and is subject to tax.”
See: What is Taxable and Nontaxable Income?
Income from self-employment, including DoorDash, has an additional rule. Since no tax was withheld when you earned your money, you will have to pay self-employment tax if your self-employment earnings after deductions was $400 or more.
See: Who Must Pay Self-Employment Tax?
Since you earned $11, you have to pay income tax but not self-employment tax (below $400).
