Midcontinent Independent System Operator Inc
Carmel, IN 46032 · IRS data through FY2024
Revenue, expenses and net assets
Revenue Expenses Net assets
| Tax year | Revenue | Expenses | Net assets |
|---|---|---|---|
| FY2024 | $616,078,935 | $616,078,935 | $0 |
| FY2023 | $548,603,867 | $548,603,867 | $0 |
| FY2022 | $460,845,431 | $460,845,431 | $0 |
| FY2021 | $407,489,988 | $407,489,988 | $0 |
| FY2020 | $390,825,730 | $390,825,730 | $0 |
| FY2019 | $408,166,395 | $408,166,395 | $0 |
| FY2018 | $400,001,689 | $400,001,689 | $0 |
| FY2017 | $364,712,007 | $364,712,007 | $0 |
| FY2016 | $340,723,419 | $340,723,419 | $0 |
| FY2015 | $335,261,589 | $335,261,589 | $0 |
| FY2014 | $312,698,066 | $312,048,924 | $0 |
| FY2013 | $308,680,293 | $308,680,293 | $0 |
| FY2012 | $298,900,715 | $298,900,715 | $0 |
| FY2011 | $323,018,626 | $323,018,626 | $0 |
Form 990 filings
The returns filed by Midcontinent Independent System Operator Inc (EIN 43-1827033), including Form 990 PDFs and e-file data by year, are available in ProPublica's Nonprofit Explorer. The figures on this page come from IRS data files built from those returns.
Where the revenue came from
| Source | Amount | % of revenue |
|---|---|---|
| Contributions & grants | $465,086 | <1% |
| Program service revenue | $446,952,846 | 73% |
| Other revenue | $168,661,003 | 27% |
Where the money was spent
| Category | Amount | % of expenses |
|---|---|---|
| Program services | $523,404,431 | 85% |
| Management & general | $92,674,504 | 15% |
| Fundraising | $0 | 0% |
What the numbers show
- Program service revenue made up 73% of total revenue in FY2024.
- Program services accounted for 85% of functional expenses, management & general 15%, and fundraising 0%.
- 85% of functional expenses went to program services in FY2024. That is higher than 52.4% of 185 Public & Societal Benefit organizations nationwide (too few in IN for a state comparison).
- Net assets covered about 0 months of expenses at the end of the reporting year.
- Total revenue was the highest among 127 Public & Societal Benefit organizations in IN.
- Total revenue rose from $323,018,626 in FY2011 to $616,078,935 in FY2024. Revenue increased in 11 and decreased in 2 of 13 year-over-year comparisons.
- Revenue covered expenses in each of the 14 reported years, FY2011 to FY2024.
Figures compared against other organizations of the same NTEE program area in the same state. See the methodology page for how these are calculated and the guide to reading nonprofit financials for their limits.
About this organization
MONITOR AND CONTROL ELECTRIC TRANSMISSION SYSTEM TO PROVIDE NON-DISCRIMINATORY OPEN-ACCESS TO ALL CUSTOMERS AND ENSURE SAFE, RELIABLE, AND EFFICIENT OPERATION FOR THE BENEFIT OF ALL CUSTOMERS.
IRS status
| Ruling year | 2001 |
| Subsection | 501(c)(4) |
| Program area (NTEE) | W80 — Public & Societal Benefit (in IN) |
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Source: Internal Revenue Service — Exempt Organizations Business Master File (downloaded November 4, 2026), Statistics of Income extracts, Form 990 e-file data, Publication 78 and the Automatic Revocation list. Figures are as reported by the organization; IRS processing may adjust them. This is not a charity rating and not tax advice. Confirm deductibility in IRS Tax Exempt Organization Search.
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