Yes. If your tax liability is $500 or more, you are required to make estimated tax payments. Please refer to Alabama Code Section 40-16-5.1 for details on the specific requirements.

Yes, the taxpayer must submit Form 2220E and the Federal Form 2220 with the return (Form ET-1) when filed to compute the required payment and penalty. The taxpayer also has the option to compute their required quarterly installments using an approved federal method (annualized or seasonal). The Form 2220E will not be accepted after the return (Form ET-1) has been submitted.