LA County DMH Grant Compliance: A 2026 Guide for Contractors

LA County DMH is, dollar for dollar, one of the largest publicly funded mental health systems in the country, and its contracting environment reflects that scale. A mid-sized provider with a portfolio of DMH contracts is simultaneously a Medi-Cal Specialty Mental Health Services biller, a state MHSA fund-category accountant, a federal SAMHSA block grant subrecipient, and a county contractor under LA County’s procurement and monitoring rules. Each of those roles produces its own documentation; an audit asks for all of them at once.

This guide is the layer above what’s already on the DMH contractor portal and the contract-specific Statement of Work. It assumes you already know which DMH program you’re operating under and who your DMH program manager and contract monitor are. What it covers is how the funding streams stack and what the documentation has to look like to reconcile across them.

The Funding Stack

A typical DMH contract blends several revenue sources. Mapping them is the precondition to clean accounting.

• MHSA (Proposition 63). State funds from the 1 percent tax on personal income over $1 million, allocated to counties across the five fund categories: CSS, PEI, INN, WET, and CFTN. Each category has its own allowable uses, county plan, and reporting cycle.
• Medi-Cal Specialty Mental Health Services. Federal Medicaid match plus state share, claimed per encounter through the SMHS carve-out that DMH operates for the county. Reimbursement is unit-based and contingent on documentation that meets state DHCS standards.
• Federal block grants and discretionary grants. SAMHSA Substance Abuse Prevention and Treatment Block Grant, SAMHSA Mental Health Block Grant, Projects for Assistance in Transition from Homelessness, and competitive SAMHSA discretionary grants pass through DMH.
• Realignment. California’s 1991 and 2011 realignment funds for behavioral health services. State-allocated, county-administered.
• County General Fund. A smaller share of DMH-administered services.
• Other state and federal sources. First 5 LA collaborations, school-based grants, justice-involved population grants.

For a contractor, the audit-relevant question is which dollars on a given invoice come from which source. The contract typically specifies this, but more importantly, your accounting must allocate expenditures across sources in a way that satisfies each source’s rules independently.

MHSA Fund-Category Compliance

MHSA is the part DMH contractors most frequently mishandle in their first audit cycle. The five fund categories are not interchangeable.

• Community Services and Supports (CSS). Direct services for adults and children with serious mental illness or serious emotional disturbance. Largest category by dollar volume. Includes Full Service Partnerships, Outreach and Engagement, and General System Development.
• Prevention and Early Intervention (PEI). Programs that prevent mental illness from becoming severe and disabling, plus programs that intervene early. Suicide prevention, stigma reduction, school-based, early childhood mental health.
• Innovation (INN). Time-limited pilots that introduce new approaches. Requires MHSOAC approval at the county plan stage.
• Workforce Education and Training (WET). Building the public mental health workforce.
• Capital Facilities and Technological Needs (CFTN). Buildings and information technology infrastructure.

The audit-relevant rules:

• Allowability is category-specific. A cost that is allowable in CSS may not be allowable in PEI. Allocate carefully.
• Cost allocation must be supported. Shared costs across categories require a documented allocation plan that ties to a measurable basis.
• Reversion. MHSA funds carry reversion rules — unspent funds revert to the state if not used within statutory timeframes. The 2018 AB 1467 changes and subsequent amendments updated reversion timelines; current rules are tracked in the county MHSA plan.
• Programmatic data submission. PEI requires demographic and outcome data submission to MHSOAC. CSS Full Service Partnerships submit individual-level data through the Data Collection and Reporting system.

For the federal portions of the same contract, 2 CFR 200 Subpart E cost principles apply. The cost principles between MHSA program rules and Uniform Guidance overlap heavily but are not identical; document allocations in a way that satisfies the more restrictive rule for any given expense.

Medi-Cal Specialty Mental Health Services Compliance

Most DMH contractors are also Medi-Cal Specialty Mental Health Services providers. The compliance pattern:

• Documentation per encounter. Progress notes meet DHCS standards for the service procedure billed. Missing or non-conforming notes lead to retrospective claim disallowance.
• Service procedure code accuracy. Billing the wrong procedure code is recoverable only if the actual service rendered would have been billable under the correct code.
• Claimable vs. non-claimable separation. If a contractor receives both Medi-Cal claims revenue and contract-funded payments for the same staff, the time records must clearly separate the claimable from the non-claimable hours.
• Lockout rules. Certain services or beneficiary categories are not claimable; billing through them is recoverable.
• Audit cycles. DHCS conducts retrospective audits on a multi-year cycle. DMH conducts internal claim audits on a more frequent cycle. Audit-recovered amounts can be substantial relative to a contractor’s annual revenue.

Medi-Cal SMHS audit findings often dwarf MHSA findings in dollar terms because the unit volume is higher and the documentation rigor required per encounter is harder to maintain consistently.

Federal Pass-Through and Uniform Guidance

Where the contract blends federal pass-through dollars — SAMHSA block grants, PATH, federal discretionary grants — Uniform Guidance applies to that portion of the work. The Uniform Guidance practical guide covers the structure end to end. The DMH-specific implications:

• Cost principles in Subpart E apply to allowable, allocable, and reasonable costs charged to the federal portion. Indirect cost rates apply at the negotiated rate or the de minimis 15 percent under the 2024 revision.
• Procurement standards in Subpart D apply to purchases made with federal pass-through dollars. Federal procurement methods at 2 CFR 200.320 and the related thresholds are covered in the federal procurement thresholds guide.
• Subaward requirements in Subpart D apply if you subcontract a portion of the federal-funded work. The subrecipient monitoring guide covers the obligations.
• Audit requirements in Subpart F apply when total federal expenditures cross the Single Audit threshold ($750,000 pre-Oct 2024; $1,000,000 thereafter).

A common mistake is to apply Uniform Guidance to the entire contract when only a portion of the contract is federally funded. Apply Uniform Guidance to the federal portion and MHSA / state rules to the state portion. The cost-allocation methodology is what makes the line clean.

County Contractor Monitoring

LA County’s monitoring layer adds work that is not captured in the federal or state rules.

• Auditor-Controller contract audits. The LA County Auditor-Controller selects contracts for audit on a risk-weighted basis. Findings can include cost disallowances, repayment requirements, and corrective action plans.
• DMH Quality Improvement reviews. Programmatic monitoring of clinical service delivery, documentation, outcomes data, and service population alignment.
• DMH Contract Compliance reviews. Fiscal monitoring of invoicing, expenditure reporting, time and effort, procurement, and subrecipient monitoring.
• County board of supervisors oversight. Contracts of certain sizes require board approval and ongoing reporting through the supervisorial process.

The Auditor-Controller’s findings tend to focus on procurement documentation and time and effort. DMH QI findings focus on clinical documentation and outcome data integrity. DMH Contract Compliance findings focus on cost allocation across funding sources.

Documentation Files to Maintain

The minimum file structure that withstands DMH audit cycles:

• Contract and amendments file. Original contract, every amendment, and signed cover letters.
• Funding allocation file. A documented methodology for allocating costs across MHSA categories, Medi-Cal claimable, federal pass-through, and any other sources.
• Budget file. Original approved budget, every approved amendment, and a working budget reconciled to the general ledger monthly.
• Personnel file. Time and effort certifications under 2 CFR 200.430 (federal portion) and equivalent documentation for state-funded portions, position descriptions tied to budget, and clinical credential documentation.
• Claims and progress note file. Per-encounter clinical documentation supporting Medi-Cal SMHS claims.
• Procurement file. Procurement policy, conflict-of-interest disclosures, solicitations and contracts above the contractor’s quote threshold, sole-source justifications.
• Subrecipient file. Subrecipient risk assessment, executed subaward agreements, monitoring records, closeout packages.
• Audit file. Single Audit reports, corrective action plans, Federal Audit Clearinghouse confirmations, DHCS audit responses.

For broader audit prep, the audit prep checklist and grant compliance checklist cover the federal portion.

Where DMH Contractors Get Caught

Recurring findings cluster in five areas.

• Cost mis-allocation across MHSA categories. Charging a CSS-only cost to PEI, or vice versa, without a defensible cost-allocation rationale.
• Medi-Cal claim documentation. Progress notes that fail DHCS standards on retrospective audit, leading to claim recoupment.
• Time and effort. Generic split percentages that don’t reflect actual effort distribution across funding sources.
• Procurement undocumented. Purchases above the contractor’s policy threshold without quotes, or sole-source justifications written after the fact.
• Subrecipient monitoring missing. Subawards without a documented risk assessment, monitoring plan, or closeout review.

The common single audit findings guide and single audit threshold guide cover the federal angle in more depth.

Software and Workflow Considerations

DMH compliance is a fund-accounting and documentation problem. The contractors that handle it well typically have:

• A grant management system that tracks budget, expenditures, and deliverables on the same record by funding source. The best software for SAMHSA grantees listicle covers the federal-pass-through-aware end of the category.
• An EHR that captures Medi-Cal SMHS encounters with documentation that meets DHCS standards.
• A cost-allocation engine that distributes shared costs across MHSA categories and federal funding sources on a defensible basis.
• A subrecipient monitoring workflow separate from accounts payable.

Spreadsheets break down quickly across a multi-source DMH contract portfolio. The findings produced by manual cost allocation in spreadsheets routinely cost more than the software replacement.

Where to Start

If you’re picking up DMH compliance for the first time:

1. Read the contract — the funding source schedule tells you which mix of MHSA, Medi-Cal, federal pass-through, and other dollars apply.
2. Build the cost-allocation methodology before the first invoice. Retrofitting allocation during an Auditor-Controller audit is what turns findings into disallowed costs.
3. Map MHSA-funded staff to fund category and Medi-Cal claimable hours separately on the time-and-effort certification.
4. Calendar every reporting deadline — monthly invoice, quarterly MHSA report, annual MHSA Annual Update, FFATA, Single Audit, contract closeout.
5. Schedule a coordination meeting between your fiscal lead, your clinical lead, and your DMH contract monitor at the start of the contract year. The cost of misalignment compounds.

DMH does not renew contracts with providers that produce serial audit findings or Medi-Cal claim recoupments. Compliance is the precondition to portfolio growth.

For state-level context, see the California nonprofit profile. For city-level context including DMH, see the Los Angeles nonprofit profile.

DEFINITION

MHSA

Mental Health Services Act, enacted as California Proposition 63 in 2004. Funds county mental health services through a 1 percent tax on personal income over $1 million, allocated to counties across five fund categories with category-specific allowable uses.

DEFINITION

Specialty Mental Health Services (SMHS)

California's Medi-Cal carve-out for mental health services for beneficiaries with significant impairment. Counties operate the SMHS benefit; LA County DMH operates SMHS for Los Angeles County beneficiaries directly and through contracted providers.

DEFINITION

CSS, PEI, INN, WET, CFTN

The five MHSA fund categories: Community Services and Supports, Prevention and Early Intervention, Innovation, Workforce Education and Training, and Capital Facilities and Technological Needs. Each has distinct allowable uses and reporting.

DEFINITION

Auditor-Controller

The Los Angeles County Auditor-Controller is the county's chief fiscal officer and conducts contract audits across county departments including DMH. Findings can result in cost disallowances and corrective action requirements.

DEFINITION

MHSOAC

Mental Health Services Oversight and Accountability Commission. State-level body that oversees MHSA implementation, reviews county MHSA plans and expenditures, and conducts MHSA-specific reviews.