I am trying to purchase a plan for my mom and looking at the plans the premiums say;
*Is that the cost per month or per year? That seems like a lot of money every month for coverage.
When you see a health insurance premium amount on the Marketplace, it's almost always per-month and not per-year.
That amount is very high. Premiums are based on income, age, geographic location, and the plan you choose. You may want to double check the application and make sure she is projecting expected Modified Adjusted Gross Income. If you haven't applied yet, then income may not be being taken into account properly.
If she doesn't qualify for cost assistance, she should shop around to see if she can find lower rates outside the Marketplace.