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 2026-09-16.
Data as of Sep 16, 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.
| 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 |
Which federal programs did this organization report?
From the most recent accepted report. "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 and the requirement letter are the ones the auditor used. The finding text itself is not reproduced here; the FAC report linked above carries it in full.
| Reference | Requirement | Severity | Repeat |
|---|---|---|---|
| 2022-004 | ABHL | Material weakness | Yes |
| 2022-005 | 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.
- 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
- 2026-09-17
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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 Single Audits and Findings (MT).” https://getauditradar.com/single-audits/mt/rimrock-foundation-810302870/. Data as of 2026-09-16.