To calculate a nonprofit’s program expense ratio, divide program service expenses by total expenses and multiply by 100. The result is the percentage of every dollar the organization spent that went to mission work rather than to administration or fundraising. The arithmetic is simple; the work is in classifying the costs that feed it.
The standard formula:
Program Expense Ratio = (Program Service Expenses / Total Expenses) × 100
Total expenses is the sum of program service, management and general, and fundraising costs. If a nonprofit spends $780,000 on programs out of a $1,000,000 total budget, its program expense ratio is 78%.
Sorting Costs Into the Three Functional Categories
The ratio only works if every expense has been placed into one of three functional buckets. These are the same categories the IRS requires on the annual return, so classifying them well does double duty.
Program Service Expenses
These are the direct costs of activities that fulfill the mission: salaries of staff who work directly with the people the nonprofit serves, educational materials for workshops, and direct aid given to clients. Everything in the numerator of the ratio comes from this bucket.
Management and General Expenses
Administrative overhead covers the cost of running the organization itself. The CFO’s salary, board meeting costs, internal accounting, human resources, and general office rent all sit here. These costs are not tied to delivering a program or to raising money, but they keep the organization legally compliant and financially sound.
Fundraising Expenses
Fundraising costs include special events held to raise money, grant writer salaries, direct-mail appeals, and the donor database. When a nonprofit combines a fundraising appeal with educational material, it has to report how those joint costs were split between program services and fundraising, and specific disclosure rules apply.1IRS. Instructions for Form 990 – Section: Line 26. Joint costs. Federal law imposes daily penalties if an organization fails to include the correct information on a required return.2Office of the Law Revision Counsel. 26 U.S.C. § 6652
Splitting Shared Costs Across Functions
Some expenses do not fit neatly into one bucket and have to be allocated. An executive director who spends part of the day overseeing programs and part running the office needs their salary split based on how that time breaks down. Common allocation methods include tracking employee hours or measuring the square footage of office space used for each function.
If the accounting system does not split these costs automatically, the organization may use any reasonable method to allocate them, as long as the method is documented in its records.3IRS. Instructions for Form 990 – Section: Part IX. Statement of Functional Expenses Applying the same method year after year keeps the ratio comparable over time.
Pulling the Numbers From Form 990
For nonprofits that file one, the figures that feed the ratio live in Part IX of Form 990, the Statement of Functional Expenses. That section lists each expense line and allocates it across columns for program services, management and general, and fundraising. The column totals at the bottom are the numbers you plug into the formula.3IRS. Instructions for Form 990 – Section: Part IX. Statement of Functional Expenses
Form 990 is generally required for organizations with total assets of $500,000 or more or gross receipts of $200,000 or more, though churches and certain church-related groups are exempt from the filing requirement.4IRS. Form 990 Series – Which Forms Do Exempt Organizations File? Narrative explanations of specific line items go on Schedule O.5IRS. Instructions for Schedule O
Reading the Result
There is no single legally required minimum ratio, but charity watchdogs have set their own benchmarks. A ratio between 65% and 85% is often treated as a standard range for established organizations. A ratio that stays below 50% for an extended period tends to raise concerns among donors and regulators, because it suggests that a large share of contributions is going to administrative or fundraising costs rather than programs.
A very high ratio is not automatically a good sign. An organization reporting 95% may simply be underinvesting in the staff, technology, and financial controls it needs to deliver and document its work. Context matters in the other direction too: research or policy-focused groups typically run lower ratios than direct-service providers like food banks because their work is more staff-intensive, and newer organizations usually show lower ratios while they build systems and donor relationships. Beyond the ratio itself, cash on hand and actual program outcomes carry more weight in a full review than any single percentage.