Withholding and Estimated Tax. If you are an employee, your employer normally withholds tax from your paychecks. If you are self-employed, you may be responsible for paying taxes directly to the IRS. One way to do that is by making estimated tax payments on set dates during the year. This is essentially how our pay-as-you-go tax system works.
New Employees. When you get a new job, you need to fill out a Form W-4, Employee’s Withholding Allowance Certificate. Employers use this form to calculate how much federal income tax to withhold from your pay. The IRS Withholding Calculator tool on IRS.gov can help you fill out the form.
Self-Employment. Money you earn working for others is taxable. Some work you do may count as self-employment. These can be jobs like baby-sitting or lawn care. Keep good records of your income and expenses related to your work. You may be able to deduct those costs. A tax deduction generally reduces the taxes you pay.
Tip Income. All tip income is taxable. Keep a daily log to report your tips. You must report $20 or more in cash tips received in any single month to your employer. And you must report all of your yearly tips on your tax return.
Payroll Taxes. You may earn too little from your summer job to owe income tax. But your employer usually must withhold Social Security and Medicare taxes from your pay. If you’re self-employed, you may have to pay them yourself. They count for your coverage under the Social Security system.
Newspaper Carriers. Special rules apply to a newspaper carrier or distributor. If you meet certain conditions, you are self-employed. If you do not meet those conditions, and are under age 18, you may be exempt from Social Security and Medicare taxes.