Medicaid Spend-Down Explained, With a Worked Example
Earning a little too much for Medicaid doesn't always shut you out. In states with a spend-down program, your medical bills can bring your income down to the limit. Here is how the math works, step by step.
AT A GLANCE
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Medicaid has income limits, and for many people the limit is the whole story. If you earn even a few dollars over, you're denied.
But federal rules let states run a "medically needy" program for people with significant health needs. In those states, a person whose income is over the limit can still qualify once their medical expenses use up the difference. That difference is the spend-down, sometimes written "spenddown."
It works a little like an insurance deductible that resets each budget period. This guide explains the rules, walks through a worked example, and lists what to ask your state Medicaid office. The rules come from the federal regulations at 42 CFR 435.831 and the Medicaid.gov eligibility policy page.
Who a spend-down is for
Medicaid.gov describes the medically needy option as a way for states to cover "individuals with significant health needs whose income is too high to otherwise qualify." Under 42 CFR 435.301, a state that offers the option must cover:
Pregnant women who would otherwise qualify except for income and resources
Children under 18 who would otherwise qualify except for income and resources
States can also choose to cover other groups through the program:
Individuals under 21
Parents and other caretaker relatives
People who are aged, blind or disabled
Separately, so-called 209(b) states must allow a spend-down for eligibility groups based on blindness, disability or age (65 and older), even if they also have a medically needy program. Resource limits, meaning savings and other assets, still apply in addition to income.
The four terms you need to know
Term | What it means |
|---|---|
Medically needy income standard | The income level your state sets for the program. It depends on household size, and it's written in the state's Medicaid plan. |
Countable income | Your income after the deductions your state is allowed to apply. |
Spend-down amount | Countable income minus the income standard, over the budget period. |
Budget period | The span of time the state uses to measure income. Federal rules cap it at 6 months, and a state may use more than one. |
How the spend-down is calculated
The regulation sets out the order of operations.
Figure countable income. The state applies its allowed deductions, which differ for children and families versus people who are aged, blind or disabled.
Compare it with the income standard. If countable income is at or below the standard, you're eligible without any spend-down.
Subtract incurred medical expenses. If income is over the standard, the agency must deduct medical expenses that no third party, such as insurance, will pay.
Check whether the expenses close the gap. Once expenses reduce income to the standard, you're eligible for the rest of the period.
An expense is incurred on the date you become liable for it, usually the date of service. You don't have to have paid the bill.
A worked example
The numbers below are made up to show the arithmetic. They are not any state's actual income standard. Your state's figures will be different.
Imagine a 62-year-old with a disability who has countable income of $1,400 a month. Her state's medically needy income standard for one person is, for this example, $600 a month, and the state uses a one-month budget period.
Step | Amount |
|---|---|
Countable monthly income | $1,400 |
Example medically needy income standard | minus $600 |
Monthly spend-down amount | $800 |
In March she has these medical costs that her other insurance does not cover:
Date | Expense | Amount | Running total |
|---|---|---|---|
March 1 | Health insurance premium | $210 | $210 |
March 6 | Prescription refills | $165 | $375 |
March 12 | Specialist visit | $240 | $615 |
March 19 | Outpatient imaging | $430 | $1,045 |
Her running total passes $800 on March 19. From that point, Medicaid can pay for covered services for the rest of the budget period.
When coverage actually starts
Federal rules give states two choices:
Partial-month coverage. She is eligible on the day her expenses bring income down to the standard, here March 19.
Full-month coverage. She is eligible from the first day of the month in which the spend-down is met, here March 1.
Either way, she is still responsible for the $800 in expenses that met the spend-down. The regulation states that those expenses are not reimbursable under Medicaid. In this example, the $245 of the imaging bill above the spend-down is the part Medicaid could cover, if the provider takes Medicaid.
What changes with a six-month budget period
If the same state used a six-month budget period, her spend-down for the period would be $800 times 6, or $4,800. That's harder to reach quickly, but once she meets it she's covered until the period ends. Ask your state which period it uses, because it changes your planning.
Medical bills count toward a spend-down on the date you owe them, whether or not you've paid them yet.
Which bills count
The regulation requires states to count these kinds of expenses, as long as no third party will pay them:
Health insurance premiums, including Medicare premiums, plus deductibles, coinsurance and copayments
Necessary medical and remedial services recognized under state law, even if the Medicaid plan doesn't cover them
Services the Medicaid plan does cover, including amounts above the plan's limits
Older bills
Bills from before you applied can help, too. The rules let states count expenses from the three months before the month you applied, whether paid or unpaid, if they weren't already used to establish eligibility. Some states count even older bills, and payments you make now on old bills can also count.
Ongoing costs
States may project certain predictable costs, such as prescription drugs or services in a care plan, to the end of the budget period at the Medicaid rate. That can let you qualify at the start of the period instead of waiting for bills to pile up. States may also set reasonable limits on some deductions.
Retroactive coverage
Medicaid.gov notes that coverage can be retroactive for up to three months before the month of application if you would have been eligible then. Under the spend-down rules, a state may also begin the first budget period during that retroactive window, as early as the first month you received covered services. If you had big medical bills in the past few months, apply soon and mention them.
Before you call
☐ Proof of income for every household member the state counts
☐ Every medical bill from the past three months, paid or unpaid
☐ Insurance statements showing what was and wasn't covered
☐ Premium notices for any health or Medicare coverage
☐ A list of regular prescriptions and their monthly cost
☐ Statements for bank accounts and other resources
Questions to ask your state Medicaid office
Does our state have a medically needy or spend-down program, and which groups does it cover?
What is the income standard for my household size?
How long is the budget period?
Do you use partial-month or full-month coverage?
Will you count bills from before the three-month window, or project my prescriptions?
How do I submit bills, and in what order do you count them?
If your application is denied, Medicaid.gov says states must give you the chance to request a fair hearing about a denial or about any action you believe was wrong.
WHAT TO DO THIS WEEK
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More help with medical costs
If a hospital bill is part of your spend-down, see whether you qualify for hospital charity care. If your insurer's statement and your provider's bill don't match, read our guide to an EOB that says paid while the provider still bills you.
Related guides
Official sources
Last checked: October 23, 2026 (federal regulations on eCFR and the Medicaid.gov eligibility policy page).
The example uses made-up figures. Your state's income standard, budget period and coverage start date come from your state Medicaid agency.
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