You can enroll in an FSA through your employer and decide how much money to contribute for the year, up to a limit set by the government. These funds are available to you right away — usually through a benefits debit card — so you can pay for eligible healthcare expenses as needed. Then, the amount you choose is deducted from your paycheck over time, using pre-tax dollars. Your employer may even contribute to your account, giving you an extra boost.
One important thing to keep in mind is that while some FSA funds may roll over to the next year (if your employer allows it), anything beyond the allowed rollover amount will be forfeited. If you leave your job, you’ll also lose any unused FSA funds, so it’s important to plan ahead.