Virginia's Insurance Marketplace lets you shop for, compare, and purchase affordable, high-quality health insurance plans with comprehensive coverage. Many households will be eligible for financial savings that lower the costs of health plans. Open Enrollment Period This is the yearly period from November 1 to January 15 during which you can buy health insurance through the Marketplace or make changes to your existing health plan. If you don't enroll during this time, you can't purchase a health plan until the next Open Enrollment Period - unless you qualify for a Special Enrollment Period. Special Enrollment Period A Special Enrollment Period takes place outside the yearly Open Enrollment Period. You can enroll in a health plan through the Marketplace during a Special Enrollment Period only if you experience a Qualifying Life Event.