The amount of your Social Security benefits subject to taxation varies according to your "combined income." If you're a single filer with a combined income below $25,000, your benefits are not ...

Learn how to calculate your annual income, whether you're salaried, hourly, or self-employed. Discover tips for accurate calculations and understanding your financial picture.

How does the IRS calculate Social Security taxes? The IRS uses a concept called “combined income” to determine how much of your Social Security benefits are taxable.