Depending on your income, you can claim a tax credit for up to 35 percent of your preschool expenses, up to $3,000 for one child or $6,000 for two or more children, applied directly, dollar-for-dollar, to your taxes owed for the year.o claim the child and dependent care credit, you must have earned income for the year you're filing for. If you're married, your spouse must also have earned income. The credit enables you and your spouse to both work, earn income and pay additional taxes.