If you received a large refund after filing your 2017 income tax return, you’re probably enjoying the influx of cash. But a large refund isn’t all positive. It also means you were essentially giving the government an interest-free loan.
That’s why a large refund for the previous tax year would usually indicate that you should consider reducing the amounts you’re having withheld (and/or what estimated tax payments you’re making) for the current year. But 2018 is a little different.