What is Tax Refund?
A refund is money returned to you when your payments during the year came out larger than your actual tax.
How it works
Withholding and refundable credits are tallied against your liability; overpay and the IRS sends the surplus back. A big refund feels great but signals you over-withheld — you effectively gave the government an interest-free loan.
A quick example
What people get wrong
If you consistently get four-figure refunds, adjust your W-4. The goal is to break even — a refund is your own money, returned late and without interest.