Rimrock Foundation: Single Audit Reports and Findings
Rimrock Foundation filed 3 single audits between 2020 and 2022; the most recently observed auditor is EIDE BAILLY LLP (2022), and the 2022 report lists 2 findings, including 1 material weakness. Data as of 2026-11-06.
Data as of Nov 6, 2026 · Source: Federal Audit Clearinghouse (public data)
Single audits by year
One row per audit year as the Federal Audit Clearinghouse accepted it. The auditor named is the one observed on that filing; Rimrock Foundation is recorded in BILLINGS, Montana under EIN 810302870, and the Clearinghouse records it as a nonprofit. Each report opens on the Clearinghouse itself; how to search the Federal Audit Clearinghouse explains the rest of the reporting package.
| Audit year | Fiscal year end | Federal expended | Threshold applied | Auditor observed | Findings | MW / SD | FAC report |
|---|---|---|---|---|---|---|---|
| 2022 | 2022-12-31 | $2,255,579 | $750,000 | EIDE BAILLY LLP | 2 | MW | 2022-12-GSAFAC-0000024650 |
| 2021 | 2021-12-31 | $1,857,560 | $750,000 | EIDE BAILLY LLP | 2 | MW | 2021-12-CENSUS-0000252677 |
| 2020 | 2020-12-31 | $942,053 | $750,000 | EIDE BAILLY LLP | 3 | MW | 2020-12-CENSUS-0000252677 |
When is the next single audit due?
If Rimrock Foundation is again required to have a single audit for the fiscal year ending Dec 31, 2023, the reporting package is due to the Federal Audit Clearinghouse by Sep 30, 2024 at the latest.
No filing for that fiscal year appears in the Clearinghouse data as of Nov 6, 2026. The data does not show why: an organization below the threshold is not required to file, and a filing can be accepted after the due date.
Whether an audit is required depends on federal awards expended in that year (the single audit threshold). The rule, 2 CFR 200.512(a): the reporting package is due within 30 calendar days after the auditee receives the auditor's report or nine months after the end of the audit period, whichever is earlier; the date above is the nine-month date, moved to Monday when it falls on a weekend. Last verified: 2026-11-15.
Which federal programs did this organization report?
From the most recent accepted report, as listed on its schedule of expenditures of federal awards (SEFA). "Major" is the designation the auditor made under 2 CFR 200.518, not ours.
| ALN | Program | Expended | Major |
|---|---|---|---|
| 93.829 | Section 223 Demonstration Programs to Improve Community Health Services (CCBHC) | $1,535,839 | Yes |
| 93.498 | COVID-19 Provider Relief Fund and American Rescue Plan (ARP) Rural Distribution | $469,880 | No |
| 93.243 | Substance Abuse and Mental Health Services Projects of Regional and National Significance | $108,276 | No |
| 16.838 | Comprehensive Opioid, Stimulant, and Substance Abuse Site-based Program (COSSAP) | $104,822 | No |
| 93.788 | Montana State Opioid Response - SOR II | $36,762 | No |
What findings did the auditor report?
The reference is the auditor’s; the requirement is the Compliance Supplement category the auditor selected. The finding text itself is not reproduced here; the FAC report linked above carries it in full. What the two severity levels mean: material weakness vs significant deficiency.
| Reference | Requirement | Severity | Repeat |
|---|---|---|---|
| 2022-004 | Activities allowed or unallowed (A); Allowable costs / cost principles (B); Period of performance (H); Reporting (L) | Material weakness | Yes |
| 2022-005 | Procurement and suspension and debarment (I) | Material weakness | Yes |
Form 990 and IRS registration
Form 990 "accounting fees" (Part IX line 11c) cover all accounting services reported by the organization and are not the price of an audit engagement.
Where to find the return itself, and what our Form 990 data covers: Form 990 lookup.
- Most recent return
- 990 for 2024-12
- Total revenue
- $13,347,391
- Total assets
- $5,517,718
- Accounting fees (Part IX line 11c)
- $48,795
- Paid preparer
- WIPFLI ADVISORY LLC
- IRS object id
- 202533019349301028
- Exempt under
- 501(c)(3)
- Ruling year
- 1981
- BMF release
- 2026-10-20
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How we computed this
Every row comes from the Federal Audit Clearinghouse record named beside it, one report per audit year, with a resubmission superseding the filing it replaces. The auditor is the one named on that filing — it is not a statement about who audits Rimrock Foundation now. Form 990 figures come from the IRS e-filed return named by its object id. This page exists because the organization filed at least two single audits, or one with a finding.
Cite this page
AuditRadar. “Rimrock Foundation, Montana Single Audits 2020–2022.” https://getauditradar.com/single-audits/mt/rimrock-foundation-810302870/. Data as of 2026-11-06.