Mayslake Annex II NFP: Single Audit Reports and Findings
Mayslake Annex II NFP filed 10 single audits between 2016 and 2025; the most recently observed auditor is Peter Shannon & Co. (2025), and the 2025 report lists 0 findings. Data as of 2026-09-18.
Data as of Sep 18, 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; Mayslake Annex II NFP is recorded in OAK BROOK, Illinois under EIN 300289036, and the Clearinghouse records it as a nonprofit.
| Audit year | Fiscal year end | Federal expended | Threshold applied | Auditor observed | Findings | MW / SD | FAC report |
|---|---|---|---|---|---|---|---|
| 2025 | 2025-06-30 | $9,514,994 | $750,000 | Peter Shannon & Co. | 0 | — | 2025-06-GSAFAC-0000392703 |
| 2024 | 2024-06-30 | $9,490,337 | $750,000 | Peter Shannon & Co. | 0 | — | 2024-06-GSAFAC-0000053558 |
| 2023 | 2023-06-30 | $9,528,352 | $750,000 | Peter Shannon & Co. | 0 | — | 2023-06-GSAFAC-0000006929 |
| 2022 | 2022-06-30 | $9,514,044 | $750,000 | Peter Shannon & Co. | 0 | — | 2022-06-CENSUS-0000227045 |
| 2021 | 2021-06-30 | $9,323,899 | $750,000 | Peter Shannon & Co. | 0 | — | 2021-06-CENSUS-0000227045 |
| 2020 | 2020-06-30 | $9,337,313 | $750,000 | Peter Shannon & Co. | 0 | — | 2020-06-CENSUS-0000227045 |
| 2019 | 2019-06-30 | $9,321,273 | $750,000 | Peter Shannon & Co. | 0 | — | 2019-06-CENSUS-0000227045 |
| 2018 | 2018-06-30 | $9,303,989 | $750,000 | Peter Shannon & Co. | 1 | — | 2018-06-CENSUS-0000227045 |
| 2017 | 2017-06-30 | $9,295,284 | $750,000 | Peter Shannon & Co. | 0 | — | 2017-06-CENSUS-0000227045 |
| 2016 | 2016-06-30 | $9,287,746 | $750,000 | Peter Shannon & Co. | 0 | — | 2016-06-CENSUS-0000227045 |
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 |
|---|---|---|---|
| 14.157 | SUPPORTIVE HOUSING FOR THE ELDERLY | $8,365,100 | Yes |
| 14.239 | HOME INVESTMENT PARTNERSHIPS PROGRAM | $584,025 | No |
| 14.157 | SUPPORTIVE HOUSING FOR THE ELDERLY | $565,869 | Yes |
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.
The most recent report lists no finding.
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 2025-06
- Total revenue
- $955,705
- Total assets
- $6,942,375
- Accounting fees (Part IX line 11c)
- $21,100
- Paid preparer
- Peter Shannon & Co
- IRS object id
- 202533159349305048
- Exempt under
- 501(c)(3)
- Ruling year
- 1946
- BMF release
- 2026-09-17
Read next
- CPA firms that audit Illinois nonprofits
- Illinois single audit statistics
- Illinois nonprofit audit requirements
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 Mayslake Annex II NFP 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. “Mayslake Annex II NFP Single Audits and Findings (IL).” https://getauditradar.com/single-audits/il/mayslake-annex-ii-nfp-300289036/. Data as of 2026-09-18.