Assiniboine & Sioux Tribes of the Fort Peck Indian Reservation: Single Audit Reports and Findings

Assiniboine & Sioux Tribes of the Fort Peck Indian Reservation's most recent single audit in the Federal Audit Clearinghouse covers fiscal year 2025, accepted June 30, 2026; the auditor observed on that filing is Baker Tilly US, LLP. It reported no findings. 8 filings from 2016 to 2025 are on record. 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; Assiniboine & Sioux Tribes of the Fort Peck Indian Reservation is recorded in POPLAR, California under EIN 810292623, and the Clearinghouse records it as a tribal government. Each report opens on the Clearinghouse itself; how to search the Federal Audit Clearinghouse explains the rest of the reporting package.

Single audits filed by Assiniboine & Sioux Tribes of the Fort Peck Indian Reservation
Audit yearFiscal year endFederal expendedThreshold appliedAuditor observedOpinionFindingsMW / SDFAC report
20252025-09-30$79,299,847$1,000,000Baker Tilly US, LLPUnmodified0—2025-09-GSAFAC-0000422029
20222022-09-30$54,996,401$750,000Moss Adams LLPUnmodified0—2022-09-CENSUS-0000154769
20212021-09-30$69,413,137$750,000Moss Adams LLPUnmodified0—2021-09-CENSUS-0000154769
20202020-09-30$44,759,163$750,000Moss Adams LLPUnmodified0—2020-09-CENSUS-0000154769
20192019-09-30$34,229,210$750,000Moss Adams LLPUnmodified0—2019-09-CENSUS-0000154769
20182018-09-30$33,650,534$750,000Moss Adams LLPUnmodified3MW / SD2018-09-CENSUS-0000154769
20172017-09-30$46,828,380$750,000Moss Adams LLPUnmodified4MW2017-09-CENSUS-0000154769
20162016-09-30$35,019,265$750,000Moss Adams LLPUnmodified0SD2016-09-CENSUS-0000154769

When is the next single audit due?

If Assiniboine & Sioux Tribes of the Fort Peck Indian Reservation is again required to have a single audit for the fiscal year ending Sep 30, 2026, the reporting package is due to the Federal Audit Clearinghouse by Jun 30, 2027 at the latest.

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.

Federal programs on the most recent report
ALNProgramExpendedMajor
21.027COVID-19 ARPA State and Local Fiscal Recovery Fund$15,331,220No
93.U01Tribal Sponsorship Program$5,101,139No
15.030Detention/TLU$3,845,484No
93.441COVID-19 ARPA$3,721,264Yes
20.205IRR Program - Mgmt/Oversight$3,619,179No
15.030Law Enforcement$1,847,814No
93.441Dental/PHN HC Support$1,768,137Yes
15.030Law Enforcement$1,750,909No
10.567COVID-19 FDPIR-Commodities$1,634,180No
93.600Head Start$1,497,568Yes
10.912Environmental Quality Incentives Program$1,388,014No
93.441Dental$1,224,963Yes
93.441Community Health Representative$1,198,475Yes
93.441Dental PRC$1,161,367Yes
93.441Detox Tribal Health$1,095,622Yes
93.441Optometry$1,095,103Yes
93.U04Wellness Center Operating (Section 105(I) Lease)$1,016,696No
15.U01Programmatic$950,223Yes
15.030Detention/TLU$912,650No
93.568LIHEAP$907,243No
93.600Head Start General$858,530Yes
93.237Diabetes Program$857,464No
66.605Performance Partnership Grants$826,678No
93.441Public Health Nursing$796,952Yes
93.441IHS Settlement Funds PHN & Dental$748,640Yes

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.

The most recent report lists no finding.

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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 Assiniboine & Sioux Tribes of the Fort Peck Indian Reservation 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. “Assiniboine & Sioux Tribes of the Fort Single Audit FY2025 (CA).” https://getauditradar.com/single-audits/ca/assiniboine-and-sioux-tribes-of-the-fort-peck-indian-reservation-810292623/. Data as of 2026-11-06.