(NerdWallet) – President Donald Trump signed his “big, beautiful bill” into law on July 4, making changes to health insurance coverage for millions of Americans. If you have a marketplace health insurance plan, sometimes also known as Obamacare or Affordable Care Act (ACA) plans, your premiums might go up, and you might need to do more work to stay eligible. Here are a few key changes to marketplace health insurance in the new law — plus one thing that went unaddressed — and what to do about them.