Chicago Public Schools no longer funds its schools primarily by multiplying enrollment by a fixed dollar amount. Beginning with the 2024-25 school year, the district abandoned its Student-Based Budgeting (SBB) system and adopted a revised needs-based model that works in the opposite order: every school first receives a guaranteed core foundation of staff positions and resources, and only then does the district add flexible funding using enrollment as just one of several need-based factors. The change, which CPS describes as leading with equity, continues to govern the district's FY2026 and FY2027 budgets.
From Per-Student to Needs-Based: CPS's Funding Model Evolution
Under the old system, the mechanics were straightforward. As CPS explains in its FY2026 budget overview, the district allocated funding to each school on a per-pupil basis and then layered in additional funding to promote equity. The district's schools budget document describes the practical consequence for principals: they were given a pot of money and had to figure out what they could afford. Enrollment was the primary driver, which meant budgets rose and fell with headcount.
The new model reverses that sequence. Instead of starting with a per-student dollar amount and adding equity funds afterward, CPS now starts by guaranteeing every school a core foundation of positions and resources, then uses enrollment as one of several need-based factors to determine additional funding. The district frames this as moving "fully away from Student-Based Budgeting, which allocates resources to schools based largely on enrollment, and into an era of greater equity, where funding is provided to schools based primarily on student need."
The shift was not without friction. Reporting by Chalkbeat in April 2024 documented a Board of Education meeting at which CPS officials defended the new formula after some school communities raised concerns about losing staff. The formula, as the outlet described it, allocates staff and funding based on need and replaces a system that relied more heavily on raw student enrollment. Then-CPS CEO Pedro Martinez called it an "important milestone in a long and broad struggle to improve quality of education for all of Chicago's children, especially those farthest from opportunity."
One dating note: CPS's FY2026 budget overview says the revised model was introduced "last school year," meaning 2024-25, while the FY2027 overview describes it as introduced at the start of the 2023-24 school year. Either way, the district's own documents agree that the needs-based approach is the current framework and that it replaced SBB as the primary allocation method.





