How to lower your Medi-Cal share of cost

Share of Cost Advisors · Checked September 30, 2026 · 6 min read

Can you stop or get rid of a share of cost completely?

Sometimes. A share of cost can drop to $0 in two ways. Your countable income can fall to or below the maintenance need level, or you can qualify for a Medi-Cal program that has no share of cost at all. Neither is automatic. The county checks your program, household, income, deductions, and other rules.

Everything below works on one side of that formula: it lowers countable income, or it moves you to a program that does not use it. Read how share of cost is calculated.

Step 1: Ask for a full program review

You may have more than one path to Medi-Cal. Ask for a full eligibility review, including programs for older adults and people with disabilities. Working while disabled, changes in income, and household rules can all matter. If you work and have a disability, ask about the 250% Working Disabled Program, which has no share of cost and, since July 2022, no premium.

Find your most recent Notice of Action. Check the person’s name, the benefit month, and the share-of-cost amount. Then use this question list during your call:

• Which program am I in now?
• Which no-share-of-cost programs did you review?
• What income and deductions did you use?
• Have all my existing insurance premiums been considered?
• How far is my countable income over the limit for a no-share-of-cost program?

Step 2: Make sure every premium you pay is deducted

California rules let Medi-Cal deduct health insurance premiums you pay from your countable income. That includes dental and vision coverage, Medicare supplement (Medigap) plans, and Part D drug plans you pay for. A premium that is missing from the county’s worksheet is money you may be counting twice.

Some families add a dental or vision policy for this reason. It can work, but only when the premium is eligible and the county counts it. Read what to check before buying insurance to reduce share of cost.

Step 3: Check how Medicare Part B is handled

The rules are not the same in every program. DHCS’s 2026 guidance says the Aged, Blind, and Disabled Federal Poverty Level program has a Part B income disregard even when the state pays that premium. The Medically Needy (share of cost) program generally requires the person to pay the premium for it to be deducted. Ask your worker which rule applies to you.

Step 4: Use medical bills to meet the share of cost

A share of cost is met each month by medical expenses you pay or owe. Tell every provider you see that you have a share of cost so the expense is recorded. Ask the county which bills can count, including costs Medi-Cal does not cover. Meeting the amount does not remove it for next month; it applies month by month.

Is "zero share of cost" advice safe to follow?

Be careful with anyone who promises a $0 share of cost. The number that matters is how far your countable income is over the limit, which can be much smaller than the share of cost on your letter. Do not buy a bigger policy than you need, and do not cancel a premium that is part of your calculation without asking what happens next.

Keep a simple call record

Write the date, the worker’s name, what you asked, and the next step. If you send proof, keep the receipt with your letter. Ask for the decision in writing so you can check the effective month.

Common questions