My problem has to do with reporting of heath care premium payments. I received a letter from the IRS telling me that the amounts reported on Form 8962 do not match with the 1095-A they received.

In response, I mailed them a copy of my 1095-A, but I know that the amounts reported on the 8962 I filed are incorrect. (The software I used had a bug that prevented it from handling months without premium payments correctly.)

My question is: Should I file an amended return with a corrected 8962 now, or should I just wait for further contact from the IRS?

When you purchased health coverage through the Marketplace, you need to estimate your income and household size for 2014 on your application to see if you were eligible for a premium tax credit by using the Form 8962 used to make sure you received the right amount of premium tax credit based on your actual income and household size.the form reconciles the monthly Premium Tax Credit payments reported on 1095-A with your actual annual income and family size.Form 8962 may be filed with tax Forms 1040. If the information on your Form 1095-A is incorrect, call the Marketplace call center at (800) 318-2596
and let them know so that it can be corrected. The Marketplace also sends a copy of your 1095-A to the IRS, so it is important that it is correct. You need to file amended return since your premium ta x credit amount is incorrect; please contact the IRS for more info .

just like how you use a W-2.You do not need to file Form 8962 with your state tax return.