In IR-2017-121, the IRS provides helpful tips for adjusting withholding amounts from paychecks. Ideally, taxpayers should have an amount withheld so that their tax liability or refund is as close to zero as possible. The following is adapted from IR-2017-121 (available at IRS.gov):
"The IRS offers several online resources to help taxpayers bring taxes paid closer to what they owe. They are available anytime on IRS.gov. They include:
- IRS Withholding Calculator – Online tool helps determine the correct amount of tax to withhold.
- IRS Publication 505 – Tax Withholding and Estimated Tax.
- Tax Withholding – Complete information on withholding, estimated taxes, FAQs, and more.
Self-employed taxpayers, including those involved in the sharing economy, can use the Form 1040-ES worksheet to correctly figure their estimated tax payments. If they also work for an employer, they can often forgo making these quarterly payments by instead having more tax taken out of their pay."