Chicago Public Schools says Cook County has yet to pass along about $250 million of its property tax money. The Treasurer’s office says the real figure is $70 million to $80 million. The two answers are at least $170 million apart, and nobody on either side disputes the part that costs money: the payments are late.
Reported from CPS budget documents, county announcements and the county Inspector General’s findings · July 26, 2026The number in the headlines is $250 million. That is what CPS told reporters it is still owed from the first-installment property tax distribution this year, on top of what the district calls $30 million in interest and penalties last year alone from borrowing while it waits. The Cook County Treasurer’s office disputes the size of the hole, putting it at $70 million to $80 million, and attributes the late payments to “ongoing distribution and reporting defects” in the county’s new tax system, per NBC Chicago. We could not reconcile the two figures from public documents, and neither office has published a line-item accounting; this article treats the amount as disputed and says so wherever it appears.
Both sides agree the payments are late; they disagree about how much is still outstanding. As Better Government Association president David Greising put it to ABC7, “During the course of the school year, that money eventually will come in.” The question this piece can answer from the record is what running late costs, who bears it, and which of the fixes now on the table actually touches the problem.
Two deadlines slipped, and the county says a third will follow
Cook County bills property taxes in two installments a year: a first installment that is an estimate, normally due March 1, and a second installment that settles the true bill, normally due August 1. The county then distributes what it collects to about 2,200 school districts, park districts, libraries and municipalities. Here is how the last two deadlines ran, and what the county says about the next one.
| Installment | Normal due date | What happened |
|---|---|---|
| 2024 second installment | Aug 1, 2025 | Bills mailed by Nov 14, 2025; due Dec 15, 2025 — about four and a half months late |
| 2025 first installment | Mar 1, 2026 | Due date moved to Apr 1, 2026 after late mailing |
| 2025 second installment | Aug 1, 2026 | County announced in June it will run about two months late; no date set |
For a homeowner this is not a tax increase, and paying on the published due date never triggers a penalty. The practical effects are smaller and stranger: bills bunch up, with last year’s December second installment landing sixteen weeks before this spring’s first installment; household budgeting gets harder because the biggest bill of the year has no reliable month; and money moves late in both directions, with ABC7 reporting in April that thousands of taxpayers were waiting on about $186 million in refunds held up by the same system. The taxing districts feel it differently. Their spending runs on a school-year calendar whether or not the revenue arrives, so late distributions become short-term borrowing, and the interest on that borrowing is a real public cost that did not need to exist.
The county spent $63 million on the system that is late
The cause both offices point to is the county’s long-running effort to move its property tax machinery off 1980s-era mainframes. Cook County signed a contract with Tyler Technologies in 2015 for a modernization that was projected to take three to five years. Eleven years on it is not finished. The Daily Herald, reporting on county Inspector General Tirrell Paxton’s review of the project this month, put the spending at nearly $30 million to Tyler and about $63 million overall once audit and project-management contractors are counted.
The Inspector General’s findings spread the blame. Tyler is faulted for poor communication, for failing to correct known problems, and for turnover in the project’s leadership. But the report also names something structural: Cook County’s tax cycle runs through separately elected officials — the Assessor values property, the Board of Review hears appeals, the Clerk sets rates, the Treasurer bills and collects — each running their own office, and the report says that structure “inherently creates operational challenges and delays.” Readers of our appeals and relief reporting have seen that relay race from the inside; the bills cannot go out until every runner has finished.
What late money costs the schools
CPS is the district with the biggest numbers attached. Its own published budget overview reports $861 million of short-term debt outstanding as of June 30, 2026 — borrowing against taxes that have been billed but not yet collected, a standard instrument called a tax anticipation note that costs interest for every month the underlying tax money stays out. The district’s claim of $30 million in interest and penalties last year is its own figure and we could not verify it independently, but the direction is not in doubt: the later the county pays, the longer the notes run.
The delays also shaped the district’s calendar this month. CPS moved its budget vote up to July 30 — earlier than usual — because, per Chalkbeat’s reporting, the district cannot arrange its next round of borrowing until a budget passes. The budget it is voting on opens with a $732.5 million gap on $8.48 billion of operating spending, and closes most of it with about 760 teacher layoffs, roughly 800 school-support layoffs, 162 central-office cuts, five unpaid furlough days for all staff, a spending freeze held in reserve for January, and a doubled assumption about city TIF money, from $100 million to $200 million. CPS’s own overview says a $297.6 million gap remains if hoped-for city and state money does not materialize. The collections dispute did not create that structural deficit, and school board member Jitu Brown made the point directly: the problem, he told ABC7, goes beyond the county to state-level funding. What the late money adds is interest expense and a borrowing clock on top of a budget already being closed with layoffs.
Smaller districts feel the same mechanics at smaller scale. An Illinois Policy Institute review of the delays found Evanston’s School District 65 borrowed $15 million in November through tax anticipation warrants to cover payroll while it waited for its distribution.
A bridge fund CPS cannot use
The county’s remedy for the districts it pays late is a loan program. When Board President Toni Preckwinkle announced in June that the next bills would run about two months behind, she also reopened the Property Tax Bridge Fund: up to $300 million in no-interest, short-term loans for taxing districts waiting on their distributions, the third time the county has offered it. Applications opened July 20 and close August 24.
The eligibility rules are specific, and one of them excludes the county’s biggest school district by geography. To qualify, a district must rely on property taxes for at least half its governmental revenue and must sit wholly within suburban Cook County. CPS is in Chicago, so it cannot apply. That is a written rule of the program, not a discretionary snub, but the result is that the district claiming the largest late-payment hole is the one the no-interest bridge cannot reach. County officials told NBC Chicago they are in ongoing talks with CPS about the revenue gap.
The new law fixes a different problem
One more property tax headline landed this month and it is easy to run the stories together, so we will keep them apart. On July 10 Governor Pritzker signed House Bill 4537, the tax-sale overhaul championed by Treasurer Maria Pappas. It rewrites what happens after a homeowner falls behind: it phases out the system in which tax buyers could charge interest on back taxes and ultimately take the home with all its equity, bringing Illinois in line with the U.S. Supreme Court’s 2023 Tyler v. Hennepin ruling that government may keep only what it is owed. The change arrives on a schedule, not overnight: under the law, Cook County is set to hold six more annual tax sales, the last in 2030, alongside a pilot payment-plan program, per Injustice Watch’s reporting. It is a significant change for people at risk of losing a home over a tax debt. It does nothing about the billing calendar, the distribution delays, or the modernization project — a different Tyler entirely.
What is established, and what is not
- On the recordTwo consecutive Cook County tax deadlines slipped — the 2024 second installment ran about four and a half months late, and the 2025 first installment moved to April 1 — and the county has announced that the 2025 second installment will run about two months behind.
- On the recordThe modernization began with a 2015 Tyler Technologies contract projected at three to five years; the Inspector General’s review puts spending at about $63 million and faults both the vendor and the county’s divided elected structure.
- On the recordCPS reported $861 million of short-term debt outstanding on June 30, 2026, and moved its budget vote to July 30 to keep its borrowing on schedule.
- On the recordThe county’s $300 million bridge fund is limited by rule to districts wholly within suburban Cook County, which excludes CPS.
- Not establishedWhether the first-installment hole is $250 million, as CPS says, or $70–80 million, as the Treasurer’s office says. Neither office has published a reconciliation and the figures may count different things.
- Not establishedCPS’s $30 million figure for last year’s interest and penalties, which appears only in the district’s own statement.
- Not establishedWhen the 2025 second-installment bills will actually arrive. “About two months late” is the county’s June estimate, not a date.
How we know
- The dispute: NBC Chicago, July 23 (CPS’s $250 million claim, the Treasurer’s $70–80 million counter, the $30 million interest figure, the “distribution and reporting defects” attribution) and ABC7 Chicago, July 24 (borrowing costs, the Greising and Brown quotes).
- The calendar: the Cook County Treasurer’s due-dates page (Dec 15, 2025 and Apr 1, 2026 due dates), the county’s November announcement (bills mailed by Nov 14, 2025), the Sun-Times, June 9 and the county’s own June announcement (the two-month estimate); ABC7, April (the $186 million in stalled refunds).
- The modernization project: the Daily Herald, July 21, reporting Inspector General Tirrell Paxton’s review (2015 contract, three-to-five-year projection, roughly $30 million to Tyler and $63 million overall, findings on the vendor and the county’s structure).
- The CPS budget: the district’s published FY2027 Budget Overview ($8.48 billion operating budget, $732.5 million beginning gap, the closure measures, the $297.6 million remaining gap, $861 million short-term debt at June 30) and Chalkbeat Chicago, July 15 (layoff counts, the July 30 vote and its borrowing logic).
- The bridge fund: the county’s program announcement (terms, the 50-percent and suburban-only eligibility rules, the July 20–August 24 window).
- The new law: The Real Deal, July 15 (House Bill 4537, signed July 10, and what it changes) and Injustice Watch (the phase-in: six more annual tax sales through 2030 and the pilot payment plan).
- The District 65 example: an Illinois Policy Institute review of the delays’ effect on suburban districts. The institute is an advocacy organization; we use its reporting only for the district’s stated borrowing, not its policy conclusions.
- What we did not do: we did not adjudicate the $250 million versus $70–80 million dispute, and no figure in this piece rests on either number being right. Where a figure comes from one side’s statement, the text says so.
Reported by KCM Desk from county and district documents and the coverage linked above; published July 26, 2026. If you spot an error, corrections come first.