Miller Trust in South Dakota: Qualifying for Medicaid When Income Is Too High

Your parent receives $3,200 per month from Social Security and a small pension. South Dakota's Medicaid income cap is $2,982. They are $218 over the limit — and without a Miller Trust, they are completely disqualified from long-term care Medicaid. Not partially reduced. Completely ineligible.

Why South Dakota Requires a Miller Trust

South Dakota is an "income cap" state, meaning there is no medically needy spend-down pathway for people whose gross monthly income exceeds the $2,982 threshold. In neighboring states that allow spend-downs, your parent could simply apply the excess income toward their care costs. South Dakota does not permit this.

The only solution is a Qualified Income Trust — commonly called a Miller Trust after the court case that established the concept. This irrevocable trust creates a legal pathway to redirect income so it no longer counts against the Medicaid income limit.

How the Trust Works

The mechanics are precise and must be followed exactly:

1. Open a dedicated, empty bank account in the name of the trust. This account receives all of your parent's monthly income — Social Security, pensions, annuities, any recurring payments.

2. The trust must be irrevocable. Once established, your parent cannot dissolve it or change its fundamental terms.

3. South Dakota must be named the primary remainder beneficiary. When your parent dies, any funds remaining in the trust go to the state, up to the total amount of Medicaid benefits paid. This is non-negotiable.

4. Monthly disbursements follow a strict priority order:

   • $100 Personal Needs Allowance (paid to the resident for personal spending)
   • Spousal Income Allowance (if applicable, to bring the community spouse's income up to the minimum)
   • Health insurance premiums (Medicare Part B, supplemental insurance)
   • The remaining balance goes to the long-term care facility as the resident's "patient liability" — their share of the monthly cost

Once income flows through the Miller Trust, it is no longer counted toward the $2,982 limit. Your parent becomes financially eligible for Medicaid, assuming their countable assets are also below $2,000.

What It Costs to Set Up

An elder law attorney typically charges $500 to $1,500 to draft a Miller Trust in South Dakota. The trust document itself is relatively straightforward — the complexity lies in ensuring it meets both federal requirements and South Dakota's specific rules.

Some families attempt to draft the trust using templates. This is risky because the trust must include very specific language — the irrevocability clause, the state remainder beneficiary designation, and the disbursement priority structure must all be precise. A rejected trust means starting over while the Medicaid application clock continues ticking.

The Community Spouse Resource Allowance

When only one spouse applies for Medicaid, the at-home spouse is protected by the Community Spouse Resource Allowance (CSRA). The community spouse can keep 50% of the couple's combined countable assets, up to a maximum of $162,660. If the couple's total assets are low, South Dakota guarantees a minimum protected share of $32,532.

The CSRA applies regardless of whether a Miller Trust is needed. But families dealing with both an income cap problem and an asset limit problem need to coordinate both strategies simultaneously — which is where professional planning becomes essential.

The 60-Month Look-Back Connection

The Miller Trust solves the income problem, but it does not protect against the look-back audit. South Dakota reviews every asset transfer made during the 60 months before the Medicaid application. Transfers into the Miller Trust are not penalized because the trust is a Medicaid-compliant instrument. But any gifts, property transfers, or below-market sales your parent made during that window will trigger penalty periods.

The daily penalty divisor is $320.55. A $16,000 gift to a grandchild three years ago creates a 50-day gap in Medicaid coverage — roughly $14,700 in private-pay nursing home costs the family must absorb.

Common Mistakes

Depositing income into a regular account first. All income must flow directly into the Miller Trust account. If Social Security deposits into a personal checking account and then gets transferred to the trust, the state may argue the income was available to the applicant before it reached the trust.

Spending trust funds on non-approved items. The disbursement priority is strict. Using trust funds for anything outside the approved categories — groceries, gifts, home repairs — violates the trust terms and can result in Medicaid termination.

Forgetting to fund the trust monthly. The trust must be actively funded every month. If income stops flowing through the trust, Medicaid may reassess eligibility.

Getting Started

If your parent's income exceeds $2,982, the Miller Trust should be established before submitting the Medicaid application. The South Dakota Dementia Care Guide includes a Miller Trust setup checklist, a monthly disbursement worksheet, and guidance on coordinating the trust with spousal protection strategies.

See more South Dakota guides →