How much can you put in a 401K each year without being taxed?

For the year 2023, individuals can contribute up to $22,500 to their 401(k) plans without being taxed on that amount in the year of contribution. For those aged 50 and older, there is an additional catch-up contribution limit of $7,500, allowing for a total of $30,000. Contributions are made pre-tax, reducing taxable income for the year, but taxes will apply upon withdrawal during retirement. Always check for updates or changes in contribution limits as they may vary annually.