What are the two quick questions on the Taxes page?

Both are optional. The first is how many children under 17 you will claim: DeskOps takes the child tax credit off the federal income tax in your estimate, at the IRS figure for the year ($2,200 per child for 2026), reduced for higher incomes the way the law says. The second is other W-2 wages in your household, such as a spouse's job or a job of your own. Your business profit is taxed on top of those wages, so the estimate becomes the extra tax your business adds; the wages' own tax is left to that job's withholding. Retirement contributions and your own health insurance are not asked yet.