Home | Free Tax Advice | Hot Links | Loan Payment Calculator | Directions | About
DONALD R. GREENSPAN Certified Public Accountant
2903 Clarice Court · Austin, TX 78757-4411
Photo of Mr. Greenspan

Tel (512) 948-5688
Email drgcpa@att.net
Free Tax Advice
2018 Estimated Tax

Estimated tax penalty does not apply if you pass safe harbor test. Say your income and taxes will be much higher in 2018. You discover you have not paid enough estimated tax prior to the deadline of April 15, 2019, to cover your total tax bill. Fortunately, you also discover you qualify for relief under the safe harbor test. Now you can start sleeping again at night.

Here is how it works. If you make timely payments equal to, or exceeding your safe harbor amount, the estimated tax penalty does not apply. Your safe harbor amount varies, depending on your 2017 adjusted gross income (AGI). If your 2017 AGI is $150,000 or less, the amount is 100% of your 2017 tax. If your 2017 AGI is more than $150,000, the amount is 110% of your 2017 tax.

You do not have to pay the remaining tax balance until April 15, 2019. Even if you owe a large amount, the estimated tax penalty does not apply.

2018 4th Quarter Estimated Tax is due Tuesday, January 15, 2019. Make sure you include 2018 Form 1040-ES (Payment Voucher 4) with your check.

2018 Estimated Tax Calendar
  • Payment Voucher 1 - Tuesday, April 17, 2018
  • Payment Voucher 2 - Friday, June 15, 2018
  • Payment Voucher 3 - Monday, September 17, 2018
  • Payment Voucher 4 - Tuesday, January 15, 2019
Photo of lighthouse

CPA Logo
Call (512) 948-5688 today

Greenspan takes care of business!
CPA Logo
Copyright 2019  DONALD R. GREENSPAN CPA  Legal Disclaimer