Medicaid checks your income at least once every 12 months through a scheduled renewal, and your state also runs electronic data checks between renewals to catch significant changes. On top of those two touchpoints, you’re required to report major income or household changes yourself, usually within 10 to 30 days. One big shift is coming: starting January 1, 2027, adults who gained coverage through Medicaid expansion will be reviewed every six months instead of every twelve.
The Once-a-Year Renewal
For most beneficiaries, the formal income check happens on a 12-month cycle. Federal rules set that pace precisely. For people whose eligibility is based on Modified Adjusted Gross Income (children, pregnant women, parents, and non-disabled adults under 65), states must renew once every 12 months and cannot do it more often. For the elderly, blind, and disabled population, the rule is at least once every 12 months, which leaves states room to review more frequently in some situations.1eCFR. 42 CFR 435.916 – Regularly Scheduled Renewals of Medicaid Eligibility
Ex Parte Renewal Comes First
Before your state asks you for anything, it has to try to renew your coverage automatically using data it already has. This is called an ex parte renewal. The agency pulls from wage records, tax data, and Social Security information to see whether you still qualify. If the data confirms you’re eligible, your coverage continues. You’ll get a notice explaining what information was used, but you don’t have to send anything back unless something is wrong.1eCFR. 42 CFR 435.916 – Regularly Scheduled Renewals of Medicaid Eligibility
When the agency can’t confirm eligibility through data alone, it has to send you a pre-populated renewal form with the information already on file, and you get at least 30 days to respond. Update what’s changed, sign, and return it.
Data Checks Between Renewals
Your annual renewal isn’t the only time your income comes under review. States can run electronic data matches in between, comparing your Medicaid file against wage databases and other records. These automated scans aren’t full redeterminations, but if something flags — a new employer reporting wages, for instance — the state can open a review. Before it changes your coverage, it still has to send proper notice and give you a chance to respond.2Medicaid.gov. Medicaid and CHIP Renewals and Redeterminations
States have flexibility in which data sources they lean on. Some pull quarterly wage data because it’s more current than annual tax returns and gives a better read on what you’re actually earning right now.3Medicaid.gov. Verification of Financial Eligibility for Medicaid and CHIP
The Six-Month Rule Starting January 2027
Section 71107 of the Working Families Tax Cut legislation (Public Law 119-21) changes the frequency for a specific group. For renewals scheduled on or after January 1, 2027, states must conduct eligibility reviews every six months instead of every twelve for adults enrolled through Medicaid expansion.4Centers for Medicare and Medicaid Services. SMD 26-001 – Implementation of Eligibility Redeterminations, Section 71107
The rule covers two groups: adults enrolled under the state Medicaid plan in the expansion group described in section 1902(a)(10)(A)(i)(VIII) of the Social Security Act, and adults in that same expansion group who are enrolled through a waiver. In practical terms, this is the Affordable Care Act expansion population — generally adults ages 19 to 64 with income up to 138% of the federal poverty level who don’t qualify through another route like pregnancy or disability.4Centers for Medicare and Medicaid Services. SMD 26-001 – Implementation of Eligibility Redeterminations, Section 71107
If you’re in that group, expect the state to reach out twice a year rather than once. The ex parte process still applies — the agency has to try to renew you automatically first — but you’ll need to watch your mail and any Medicaid portal messages more closely.
Kids Are Locked In for 12 Months
Children under 19 get treated differently, and this matters if your worry is that a mid-year pay raise will knock a child off coverage. Since January 1, 2024, federal law requires states to provide 12 months of continuous eligibility for children in Medicaid or CHIP. Once a child is found eligible, coverage can’t be terminated during that 12-month window even if family income goes up.5Medicaid.gov. Continuous Eligibility for Medicaid and CHIP Coverage
The exceptions are narrow. A child’s coverage during the 12-month period can end only if the child turns 19 (or a lower state-set age), the family asks to end it, the child moves out of state, the original determination was based on fraud or agency error, or the child dies.6Centers for Medicare and Medicaid Services. SHO 23-004 – Continuous Eligibility A raise mid-year doesn’t count.
What You Have to Report and When
Between scheduled renewals, the burden shifts to you. Federal regulations require states to have procedures for beneficiaries to report changes that could affect eligibility, and the state has to act on that information.1eCFR. 42 CFR 435.916 – Regularly Scheduled Renewals of Medicaid Eligibility
Changes you’re expected to report include:
- Starting a new job or losing one
- A raise, a cut in hours, or a change in your regular schedule
- Household size changes: someone moving in or out, a birth, a marriage, a divorce
- Changes in other income sources like Social Security, child support, or unemployment insurance
Deadlines vary by state, but 10 to 30 days from the date of the change is typical. Most states let you report through an online portal, by phone, by mail, or in person. If you don’t report and the agency later finds out, you can lose coverage or be asked to repay benefits you received while ineligible.
Irregular or Seasonal Income
If your income moves around from month to month, a single high-earning stretch doesn’t automatically knock you off. States are allowed to accept reasonable explanations when self-reported income doesn’t match what data sources show. If you can explain that you lost a job, had hours cut, or stopped picking up overtime, and that accounts for the gap, no extra documentation is needed.3Medicaid.gov. Verification of Financial Eligibility for Medicaid and CHIP
If You Miss the Renewal Deadline
Missing the paperwork deadline is one of the most common reasons people lose Medicaid, and it’s usually fixable. If you don’t return your renewal form or requested documents on time, the state can end your coverage. That’s called a procedural termination — you lost coverage over paperwork, not because anyone found you ineligible.
For MAGI-based groups, federal rules give you a 90-day reconsideration window after a procedural termination. Submit the missing renewal form or documents within 90 days and the state has to reconsider your eligibility without making you start over with a full new application. Some states extend that window even further. States can also offer the same 90-day reconsideration to non-MAGI populations, but it isn’t federally required for those groups.7Centers for Medicare and Medicaid Services. CMCS Informational Bulletin – Conducting Medicaid and CHIP Renewals
If a Review Finds You Over the Income Limit
When a renewal or data check shows your income has risen above the eligibility threshold, the state has to send you written notice before making any changes. The notice must explain the basis for the decision and include the income figures used.8eCFR. 42 CFR 435.917 – Notice of Agency Decision Concerning Eligibility, Benefits, or Services You can respond with additional documentation or point out errors before the decision becomes final.
You also have a right to a fair hearing. Federal rules give you up to 90 days from the date the notice was mailed to request one.9eCFR. 42 CFR Part 431 Subpart E – Fair Hearings for Applicants and Beneficiaries Timing matters more than most people realize. If you request the hearing before the effective date of the termination shown on your notice, the state must keep your Medicaid benefits going until a final hearing decision comes in.10Medicaid.gov. Understanding Medicaid Fair Hearings Wait until after the termination takes effect and coverage stops while the appeal plays out. The safest move is to act the moment you get an adverse notice, not the moment you’re ready.