After you apply · Notices
The Marketplace asked for documents. What now?
A “data matching issue” doesn’t mean you did anything wrong, but ignoring it can cost you your coverage or savings.
Your info goes to Nexus only and is never sold. Not to a call center, not to a list of “partners.”
- Usually 90+ days
- Upload is fastest
- No email or fax
Help me with my notice
Your info goes to Nexus only. Never sold. No pitch, no obligation.
What to know
- You can still enroll right away if your Eligibility Notice says you can buy a plan.[1]
- The Marketplace won’t end coverage or change savings without advance notice, warning notices and a reminder phone call.[1]
- Special Enrollment Period documents work differently: pick a plan, then send them within 30 days.[2] See moving and Special Enrollment.
How to send them
- Upload in your HealthCare.gov account; it’s the fastest way. Files must be .pdf, .jpeg, .jpg, .gif, .xml, .png, .tiff or .bmp, under 10 MB, with no special characters in the file name.[1]
- Mail photocopies, never originals, with the bar code page from your notice, to Health Insurance Marketplace, Attn: Supporting Documentation, 465 Industrial Blvd., London, KY 40750-0001.[1]
- The Marketplace can’t accept documents by email or fax.[1]
Income mismatches
For income, your estimate is based on the year of coverage and uses MAGI.[3] See what counts as income. If the Marketplace decides you aren’t eligible after you send documents and you disagree, you generally have 90 days from the Eligibility Notice to appeal.[4] See Marketplace appeals.
Please don’t send us Social Security numbers or medical details by text or email.
Sources
- HealthCare.gov, When the Marketplace needs documents to confirm information from your application. https://www.healthcare.gov/verify-information/
- HealthCare.gov, Send documents to confirm a Special Enrollment Period. https://www.healthcare.gov/coverage-outside-open-enrollment/confirm-special-enrollment-period/
- HealthCare.gov, What to include as income. https://www.healthcare.gov/income-and-household-information/income/
- HealthCare.gov, How to appeal a Marketplace decision: what can I appeal?. https://www.healthcare.gov/marketplace-appeals/
Checked October 16, 2026. 2027 Marketplace plans and final 2027 rates aren’t published yet; we’ll update this page when they are.
Frequently asked questions
What is a data matching issue on HealthCare.gov?
It means information on your application, like income, citizenship or immigration status, needs documents to confirm it.
How long do I have to send documents?
The deadline is in your Eligibility Notice. In most cases you have at least 90 days.
Can I email or fax documents to the Marketplace?
No. Upload them in your HealthCare.gov account or mail photocopies.
Will you sell my information?
No. Your information goes to Nexus Benefit Solutions only and is never sold.