I suspect the state changed your income, so that you no longer qualified. Call them for an explanation, and then post back here.
https://www.mass.gov/service-details/senior-circuit-breaker-tax-credit
Thank you for your comment and link. I do meet all the qualifications. When I called the State Department of Revenue (DOR) they said I own too much land. That I would have to calculate my property tax bill only on my house and 1 acre of land. Where in the Massachusetts Schedule CB Worksheet does it say that? In order to do this I would have to have my property and home reappraised by my town as my property value varies in appraised rates in areas of wetlands, easements, etc. Either this state representative is totally fabricating this response or the state wants to prevent elderly, disabled people like me from getting this credit.
So TurboTax uses federal taxable income and shows a credit for 1100, but the MA DOR denied this credit and said it is based on gross income. Is this a bug in turbotax as turbotax used taxable income for the Circuit Breaker form? Does this qualify for the guarantee? No penalty or late fees as the taxes were just this credit. nothing else due.
I was supposed to get a refund of $650. for 2018. On the MA tax website it says "Your return was received on 16-Apr-2019 and has been processed. Your refund was applied to an outstanding balance due on your account." Then I got a letter, was asking for additional information to be sent to an online state account... pictures of my driver's license, mortgage statement, house value, etc, which had to posted by May 22, 2019. I sent all requested proof to special website before the deadline...then, no response until end of August , telling me I owed $475. to the state and to arrange for payments (which I did) online by September 9th. Then, got another notice to pay in full by October 15th. No explanations with any of these notices.