<prompt> Human: I am telling her that this year, the deadline shrunk to be december 15. but she keeps telling me thats something else and that she has until february X 2018. She is also saying that she confirmed it with the person she talks to for health insurance. she doesnt speak english, so she calls the company itself, not sure if its her currrent health insurance provider, or someone working for the governemtn health insurance services, and uses a bilingual person or translator therequick data sheet.1. I am 25. i used to be dependent on her for tax purposes and we both had free health insurance. i got a job 4 weeks ago, and I will be using my employers health insurance come 2018.2. my mom needs to apply for health insurance again, but this time, she will be listed as single with no independents since I will be filing my own taxes. because of this, she is telling me that she will have to pay some amount since she is over the income limit for free health insurance having no dependents she makes anywhere between 20-25k a yearlocation is USA washington state.Any idea what she is talking about? Is it possible that her deadline is different?is there any difference between medicare, ACA, and obamacare?  <response>: ACA and Obamacare are the same thing. Medicare is different its generally for people age 65 and older. Medicaid which you didnt ask about is yet another different thing primarily for low-income people. In Washington state, Medicaid is also referred to as Apple Health.Assuming for the moment that your mom is on an ACA plan... The ACA open enrollment deadline is indeed Dec 15 this year for most people, particularly in states that dont operate their own exchanges and rely on the federal exchange healthcare.gov. However, Washington state operates its own exchange. On their web site after scrolling down a bit, it lists some key dates: November 1, 2017: Open Enrollment Begins December 15, 2017: Deadline for Jan. 1 Coverage January 15, 2018: Open Enrollment EndsAssuming she is on an ACA plan, if I were you, I would still try to get her to complete her enrollment by Dec 15. She may technically have an extra month, but Im not sure what that would mean about her coverage in the month of January. 