Curious about whether your current withholdings will be sufficient under the new tax laws? The IRS has made available a new self-service online tool which can help you determine this. It is important to read the instructions carefully before you start, as you will need to have documentation handy to answer several of the questions (e.g.most recent tax return, pay stubs).
The system will prompt you for missing information, but you will need to know things like your projected income for 2018, and number of children who qualify for the child tax credit (they must be under age 17 as of 12/31/18), so make sure to gather everything you need before you start the questionnaire. Also, please note that If your health care is through the Health Connector, this amount will not factor in to the ACA premium tax credits.
You can access the Withholding Calculator at this link:
https://www.irs.gov/