Bookkeeping for Nonprofits: Fund Accounting, Form 990, and the Mistakes That Cost Tax-Exempt Status

Three years in a row, a youth sports nonprofit in northeast Houston filed their Form 990 wrong. Not fraudulently wrong — just confused wrong. They reported restricted grant funds as unrestricted revenue. They lumped all expenses into one category instead of splitting them across program, administrative, and fundraising. They forgot to report compensation for their two paid coaches. Nobody at the IRS said anything for three years. Then someone did.

The letter explained that their tax-exempt status was under review. For a nonprofit that depends on tax-deductible donations and grant funding, losing 501(c)(3) status doesn’t just mean paying taxes — it means donors can’t deduct their contributions, grant applications get rejected, and the organization’s credibility evaporates.

Bookkeeping for nonprofits isn’t harder than for-profit bookkeeping. It’s different. The rules are different. The financial statements are different. The reporting requirements are different. And the consequences of getting it wrong hit the organization’s mission, not just its bank account.

Fund Accounting: The Fundamental Difference

For-profit businesses track profit. Nonprofits track stewardship — how funds were received, what restrictions apply to them, and whether they were spent according to those restrictions.

This is fund accounting. Every dollar that comes into a nonprofit carries a classification:

Unrestricted funds. Money with no donor-imposed restrictions. General donations, membership dues, event revenue. The board decides how to spend it. This is the most flexible money a nonprofit has, and usually the hardest to raise.

Temporarily restricted funds. Money that comes with a donor or grantor’s specific purpose or time restriction. “This $10,000 is for your after-school tutoring program.” “This grant covers equipment purchases for the 2026-2027 season.” The money can only be spent on what the donor specified. When the restriction is fulfilled (the tutoring program runs, the equipment is purchased), the funds are “released” from restriction and reclassified as unrestricted.

Permanently restricted funds. Endowment-type gifts where the principal can never be spent. Only the investment income can be used, often with its own restrictions. Smaller nonprofits rarely deal with these, but larger Houston institutions — hospitals, universities, community foundations — manage significant permanently restricted portfolios.

The bookkeeping implication: your chart of accounts and financial reports must track these classifications separately. A nonprofit that treats a $50,000 restricted grant as general operating revenue and spends it on salaries is in violation of the donor’s restriction. That’s not a bookkeeping error. That’s a compliance problem that can trigger clawback provisions, loss of future funding, and board liability.

The Nonprofit Financial Statements

Nonprofits don’t produce income statements. They produce a Statement of Activities — which looks similar but uses different terminology and structure.

Instead of “revenue minus expenses equals profit,” the Statement of Activities shows changes in net assets by category (unrestricted, temporarily restricted, permanently restricted). There’s no “profit” line. There’s “change in net assets.”

The other required statement is the Statement of Functional Expenses, which is unique to nonprofits. This breaks every expense into three buckets:

Program expenses. Money spent directly on the mission. For a food bank, that’s the food, the distribution trucks, the warehouse staff. For a youth sports league, it’s equipment, field rentals, coaching.

Administrative expenses (management and general). Overhead. Office rent, accounting fees, insurance, board meeting costs, HR.

Fundraising expenses. Everything related to raising money. Event costs, donor management software, direct mail campaigns, grant writer salaries.

Donors and grantors look at this allocation closely. A nonprofit spending 85% on programs and 15% on admin and fundraising looks healthy. A nonprofit spending 50% on programs and 50% on admin and fundraising raises questions about efficiency, regardless of how legitimate the expenses are.

The allocation itself requires judgment. Your executive director spends 60% of their time on programs and 40% on administration? Their salary gets split 60/40 across those categories. The office rent supports both programs and administration? Allocate it based on square footage used for each function, or headcount, or time — pick a reasonable method and apply it consistently.

Form 990: The Public Report Card

Every tax-exempt organization with gross receipts above $50,000 must file Form 990 annually with the IRS. Organizations with gross receipts under $50,000 file the 990-N (e-Postcard). Between $50,000 and $200,000 in gross receipts, you can file the shorter 990-EZ. Above $200,000 in gross receipts or $500,000 in total assets, you file the full Form 990.

Here’s what makes the 990 unique: it’s a public document. Anyone can look it up on GuideStar or ProPublica’s Nonprofit Explorer. Donors, grant makers, journalists, and the general public can see your revenue, expenses, executive compensation, board members, and program descriptions.

That means accuracy matters for more than just tax compliance. A Form 990 with sloppy numbers, missing compensation disclosures, or vague program descriptions sends a signal to sophisticated donors and institutional funders.

The sections that trip up small nonprofits:

Part VII: Compensation. You must report compensation for officers, directors, trustees, key employees, and the five highest-paid employees earning over $100,000. “Compensation” includes salary, benefits, deferred compensation, and expense accounts. The youth sports nonprofit I mentioned earlier forgot to report their two paid coaches — not because they were hiding anything, but because they thought “compensation” only meant salaried employees, not independent contractors paid over $100,000.

Part VIII: Revenue. This is where fund classification matters. Contributions from donors, government grants, program service revenue (fees charged for services), and investment income are all reported separately. Mixing them up distorts the organization’s financial profile.

Part IX: Functional Expenses. The program/admin/fundraising allocation I described earlier goes here, line by line. Every expense category gets split across all three functions. If you haven’t been tracking functional allocation in your books all year, preparing this section at tax time means reconstructing 12 months of allocation decisions under deadline pressure.

Schedule B: Contributors. Lists anyone who contributed $5,000 or more (or 2% of total contributions, whichever is greater). This schedule is submitted to the IRS but is NOT part of the public disclosure — donors’ names are redacted on the public version. Some nonprofits don’t realize this and either omit Schedule B entirely or panic about donor privacy.

Donor Tracking and Grant Compliance

Grant compliance is where bookkeeping directly protects the organization’s funding pipeline. Most institutional grants — from foundations, government agencies, or corporate giving programs — come with reporting requirements. Quarterly financial reports. Annual impact reports. Detailed expense accountings showing exactly how grant funds were spent.

The bookkeeping system needs to track spending by grant. If the Houston Arts Alliance awards a $25,000 grant for a specific exhibition, every expense charged to that grant needs documentation: receipts, invoices, timesheets, contracts. The financial report back to the grantor must show that the $25,000 was spent on eligible expenses within the grant period.

For nonprofits managing multiple grants simultaneously, this means parallel tracking: the overall organizational books AND grant-specific expense tracking. QuickBooks handles this through class or project tracking. Specialized nonprofit accounting software (Aplos, QuickBooks for Nonprofits, Blackbaud) builds grant tracking into the core workflow.

Individual donor tracking is simpler but still important. Donors who give over $250 need a written acknowledgment for their tax records. The acknowledgment must state whether the nonprofit provided any goods or services in exchange for the donation (and their value). A $500 gala ticket where $300 is the fair market value of dinner and entertainment means the tax-deductible portion is $200, and the acknowledgment letter needs to say so.

Common Nonprofit Bookkeeping Mistakes

Treating restricted funds as unrestricted. The most dangerous mistake. A nonprofit receives a $30,000 grant restricted to equipment purchases and uses $8,000 of it for payroll during a cash crunch. That’s a restriction violation. The grantor can demand the money back. If it happens with government funds, the consequences escalate further.

No functional expense tracking during the year. Waiting until Form 990 is due to allocate expenses across program, admin, and fundraising means 12 months of retroactive guesswork. Track it monthly or at minimum quarterly.

Board members not understanding their fiduciary duty. Board members are legally responsible for the organization’s financial health. If the board approves budgets without reading financial statements, signs off on audits without understanding them, or ignores cash flow problems, individual board members can face personal liability. Good bookkeeping gives the board the information it needs to fulfill this duty.

Mixing personal and organizational funds. Happens more often than it should, especially in small nonprofits run by founders. The founder pays for organization expenses on a personal credit card and never submits for reimbursement. Or the organization pays for the founder’s personal expenses and calls them “discretionary.” Both create compliance issues and muddy the financial picture.

Ignoring the unrelated business income tax (UBIT). Tax-exempt organizations still owe tax on income from activities unrelated to their mission. A youth sports nonprofit that rents its facility on weekends for corporate events has unrelated business income. If that income exceeds $1,000, it must be reported on Form 990-T and taxed at standard corporate rates. Many small nonprofits don’t realize this until an audit.

Setting Up the Books Right From the Start

New nonprofits in Houston often come to us after the IRS has granted their 501(c)(3) status, and they’ve been operating for 6-12 months with either no bookkeeping or a system designed for a for-profit business. Converting to proper nonprofit bookkeeping after the fact is doable but takes more work than starting correctly.

Chart of accounts. Build it around your programs, not just your expense types. A nonprofit with three programs needs to track each program’s direct costs separately. Layer the functional allocation (program/admin/fundraising) on top of that.

Accounting software. QuickBooks Online works for most small-to-mid-size nonprofits with class tracking enabled. Aplos is built specifically for nonprofits and churches. For larger organizations managing federal grants, Blackbaud or Sage Intacct provide the grant compliance tracking that general-purpose software doesn’t.

Reconciliation. Monthly bank reconciliation is non-negotiable. Match every transaction. Investigate every discrepancy. Nonprofits handle other people’s money — donors, grantors, program participants — and the standard of care is higher than for a personal business.

Internal controls. Segregation of duties matters even in small organizations. The person who writes checks shouldn’t be the same person who reconciles the bank account. The person who receives cash donations shouldn’t be the same person who records them. If the organization is too small for full segregation, the board treasurer should review bank statements monthly as a compensating control.

Do You Need an Audit?

Texas doesn’t require nonprofit audits at a specific revenue threshold (unlike some states). But many grantors require audited financial statements as a condition of funding. Federal grants over $750,000 require a single audit under the Uniform Guidance (2 CFR 200).

Even without a requirement, a voluntary audit provides credibility. An independent audit tells donors and grantors that a third party reviewed the books and found them reliable. For nonprofits approaching the $1 million revenue mark or seeking institutional funding, an audit is a strategic investment.

Audit costs for small nonprofits in Houston typically run $5,000-$15,000 depending on the organization’s complexity, number of grants, and the condition of the books. Clean, well-organized books mean a faster, cheaper audit. A shoebox of receipts and a single-tab spreadsheet mean the auditor spends more time reconstructing records, and that time costs money.

The Stakes Are Higher Than They Look

Nonprofit bookkeeping isn’t about compliance checkboxes. It’s about protecting the organization’s ability to fulfill its mission. Lose tax-exempt status and donations dry up. Violate grant restrictions and future funding disappears. File a sloppy Form 990 and sophisticated donors move their giving elsewhere.

That youth sports league in northeast Houston? They kept their tax-exempt status, but it took six months of corrective work — amended 990s, reconstructed functional expense allocations, a detailed response to the IRS review letter. The total cost in professional fees was more than double what proper monthly bookkeeping would have cost over those three years.

The organizations that run into trouble aren’t doing anything malicious. They’re doing their best with systems that don’t fit and knowledge gaps that nobody filled. Fund accounting, functional expense allocation, and Form 990 reporting aren’t intuitive. They’re learnable, but they’re not something most founders know when they start a nonprofit.