Yes, effective October 9, 2014.
Yes, beginning with the 2013 tax return, although previous years can be amended.
What tax bracket would a married couple with one dependent and an annual income of $150,000 be in?
A married couple filing their income tax jointly generally will owe less tax than a couple who file separately, but not always. A lot depends on the amount of income each spouse reports.
What tax bracket would a married couple with income of $100,000 and no dependents other than selves fall into?
No married couple is permitted to file a joint state income tax return in Wyoming. Wyoming is one of the seven US states that have no individual income tax.
No married couple is permitted to file a joint state income tax return in Alaska. Alaska is one of the seven US states that have no individual income tax.
Yes as long you have the necessary qualifying earned income.
No. Same-sex marriage is not legally recognized in Louisiana. A same-sex married couple living in Louisiana must file separately as "single" on their state income tax returns and as "married" (either jointly or separately) on their federal income tax returns.
Yes. A same-sex married couple living in California must file as "married" (either jointly or separately) on both their state and federal income tax returns.
Yes. A same-sex married couple living in Delaware must file as "married" (either jointly or separately) on both their state and federal income tax returns.
Yes. A same-sex married couple living in Hawaii must file as "married" (either jointly or separately) on both their state and federal income tax returns.
Yes. A same-sex married couple living in Maine must file as "married" (either jointly or separately) on both their state and federal income tax returns.