They are talking about taxes paid now as a balance due for 2018....because they did not have enough withholding done during the year...meaning they have to pay now, for 2018, more than they ever had to before.
As long as you did not make a mistake in your 2018 tax file, then you don't have anything extra to pay...but a significantly higher refund this year is always suspicious if thousands more than last year.
Alwasy print out your tax forms and compare them to last year to see if you reproted everything properly...(as best you can.... since the forms changed so much it can be confusing)
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
