A nonprofit board treasurer helps the board oversee the money. The treasurer doesn't keep the books and doesn't decide alone. Management prepares the numbers, the treasurer checks that they can be trusted and explains them, and the board decides. The treasurer's powers come from state law, the bylaws and the board's own decisions, not from the title.
If you've just said yes to being treasurer, or you will soon, this guide is for you. Most treasurers are volunteers, many aren't accountants, and almost all of them inherit a role nobody wrote down. That's fixable. Here's the job in plain words: what a treasurer does and doesn't do, where the authority comes from, how to use your first ninety days, which reports the board needs, and how to protect the money. It's the map. The full course is the trip.
Who is this guide for?
- Incoming treasurers who want to understand the job before the first finance report.
- Current treasurers who were handed a spreadsheet and a password and never got a real handover.
- Finance committee members and board chairs who want to know what good oversight looks like.
- Chief executives and volunteer bookkeepers who prepare the numbers the treasurer reviews.
What does a nonprofit board treasurer actually do?
Here's the one idea to hold onto: the treasurer oversees; management prepares; the board decides. In an organization with staff, the chief executive and the finance staff or outside bookkeeper keep the records and produce the reports. The treasurer reviews them, asks for evidence, explains them to the board in plain words and makes sure the board sees problems while there's still time to choose.
New treasurers tend to make one of two mistakes. The first is to become the bookkeeper: rewriting the budget alone over a weekend, paying the bills, reconciling the bank. That feels helpful, but it means nobody is checking the person doing the work. The second is to become a rubber stamp: reading the total at the bottom of the page and saying it looks fine. The treasurer's job sits between those two. Every director shares responsibility for the finances. The treasurer helps them carry it.
In a very small charity with no staff, the treasurer may have to do some of the hands-on work. That's normal. The fix isn't to stop; it's to make sure someone else sees the bank statement, the statement itself and not just a total.
Where does a treasurer's authority come from?
Not from the title. A treasurer's powers come from state nonprofit law, the articles and bylaws, any funding conditions and the decisions the board itself has made. So the first thing to read is your bylaws, then the board's financial authority policy, if there is one: who may sign a contract, who may approve an invoice, and who may release a payment. Those are three separate powers.
Two rules follow from this. First, approving a budget isn't approving every contract inside it. If your policy says the board must approve any contract above a certain amount, a contract under the budget line still needs that approval. Second, the person who approves a payment shouldn't be the only person who can release it. Splitting those jobs is one of the simplest protections a small organization has.
State law and your governing documents control. Organizations with federal grants, endowments or employees in several states face extra rules. Your state law, your bylaws and your CPA win, so check all three and ask a qualified adviser when a real question comes up.
What should a new treasurer do in the first 90 days?
Know it first. The treasurer who changes the bank, the bookkeeper and the reports in week one teaches everyone to stop telling him things. The treasurer who only reads leaves the risky gaps open. Your first ninety days have three aims: know what the organization owes, get reports you can trust, and fix the controls that matter most. The course breaks it into four stretches:
- Before the outgoing treasurer leaves: whatever can't wait. Move any bank or payment service off a personal email address to one the organization owns, with a backup administrator. Make sure payroll and bank alerts reach at least two people. Name who owns the next tax filing.
- Days 1 to 30: inventory and verify. List every account, login, adviser, deadline and promise: bank, payroll, accounting, fundraising and payment accounts, donor restrictions, debt and audit findings. Test the new access before you remove the old.
- Days 31 to 60: your first real review. Walk through a full month: the statements, the bank reconciliations, the budget variances, receivables by age, restricted balances, the cash forecast and payroll evidence. Ask for evidence, not reassurance.
- Days 61 to 90: improve and report. Set a reporting timetable, rank the control fixes and bring them to the board as proposals, each with an owner, a due date and the evidence that will show it's done.
One honest caveat. Ninety days is a suggested practice, not a legal deadline. A filing due before your next meeting, a payroll tax payment marked "sent" with no confirmation, a request to change where a supplier gets paid, or money already sent to the wrong account doesn't wait for the plan. It goes through the proper channels now.
Which reports should the board see every month?
The same package, in the same order, every time. Most nonprofits report with four financial statements: financial position (what you own and owe), activities (what came in and went out), cash flows (where the cash actually moved) and functional expenses (what you spent on programs, management and fundraising). Add the bank reconciliations, the budget compared with actual results, a forecast for the rest of the year and a short cash forecast.
A good package answers four questions a director can ask without being an accountant. Can we trust these numbers? How are we doing against the budget? How much cash can we actually spend? And what does the board need to decide? If the package can't answer the last one, it's a report, not a board paper.
How much cash can the organization actually spend?
Less than the bank balance, almost always. The course's running case, a fictional charity called Harbor Community Services, has $240,000 in the bank and a green light on its dashboard. But $150,000 is restricted by donors for specific programs, and $50,000 is a reserve the board set aside. That leaves $40,000 for operations, and the next payroll is $20,000 more than that.
The fix is a simple three-step calculation the treasurer can ask for every month: start with the bank balance, take out money donors restricted, and take out what the board has designated. What's left is available cash. Pair it with a forecast of the next few weeks, so the board sees the lowest point coming, not after it arrives. Only the board can release a reserve it designated, and no board vote can change a donor's restriction.
What filings does the treasurer need to watch?
The annual IRS return comes first. As of 2026, small organizations whose gross receipts are normally $50,000 or less can file the short electronic Form 990-N (IRS, Form 990-N). Larger ones file Form 990-EZ or the full Form 990, depending on receipts and assets (IRS, which form to file). The return is due on the 15th day of the fifth month after your year ends. An extension is available for the 990-EZ and 990, but not for the 990-N.
The stakes are real. An organization that doesn't file a required annual return or notice for three consecutive years automatically loses its tax exemption (IRS, automatic revocation). Build a filing calendar that lists every federal and state filing, who prepares it, who reviews it and who confirms it was accepted. Your state may also require annual charity registration and, above certain sizes, a CPA review or audit.
Donor paperwork belongs on the list too. A donor needs a written acknowledgment from you to deduct any single gift of $250 or more, and when a donor pays more than $75 for something like an event ticket, you owe them a written disclosure of the value they received (IRS Publication 1771).
How do you protect the money from payment fraud?
Start with the most common trick: an email that looks like it comes from a real supplier, with a real invoice, asking you to pay to new bank details. The rule the course teaches is simple. Before anyone pays to changed bank details, someone calls the supplier on a phone number you already had, not one in the email, and writes down who confirmed it.
Fraud inside organizations is costly when it happens. In the Association of Certified Fraud Examiners' 2026 study of 2,402 cases in 143 countries, the median loss was $104,000 (ACFE, Occupational Fraud 2026: A Report to the Nations). Those are cases that were caught and studied, not a prediction for your organization. The protections that help most are cheap: split who approves and who pays, have someone independent look at the actual bank statement every month, and know in advance who calls the bank if money goes to the wrong place.
One more cash check: the FDIC insures deposits up to $250,000 per depositor, per bank, for each ownership category (FDIC, corporation and unincorporated association accounts). If your organization holds more than that at one bank, the board should know and decide on purpose.
What are the most common mistakes new treasurers make?
- Doing the bookkeeping. Rewriting the budget, paying the bills and reconciling the bank yourself, so nobody checks the work.
- Reporting the bank balance as good news. A large balance can hide restricted money and a payroll gap.
- Accepting reassurance instead of evidence. "It's fine" is reassurance. A completed bank reconciliation is evidence.
- Letting one person hold the keys. Accounts tied to a personal email, alerts that reach one inbox, a password everyone shares.
- Treating the budget as permission for everything. Approving a budget doesn't approve every contract or payment inside it.
- Missing a filing nobody owned. Every filing needs a preparer, a reviewer and someone who confirms it was accepted.
What should treasurers focus on this year?
- Read the bylaws and the financial authority policy, and write down who may sign, approve and release.
- Get every account onto an organization-owned login with a backup administrator.
- Ask for available cash and a short cash forecast in every monthly package.
- Build a filing calendar with an owner for every federal and state filing.
- Adopt the call-back rule for any change to payment details.
- Put a date on the next review of reserves and banking.
What is in the full course?
The Nonprofit Board Treasurer Course is 36 short video lessons in eight modules, in the order a treasurer meets the work: the role and taking office, reliable financial information, reporting to the board, budget and sustainability, cash and treasury, tax and fundraising oversight, controls and independent assurance, and financial distress. It comes with 18 working tools in PDF, Word and Excel, including the organization profile, the financial authority matrix, the monthly review checklist, the available cash calculator and the payment verification and fraud response sheet. It also includes cheat sheets, four one-page checklists, including the First 90 Days checklist offered above, and a capstone workbook. It ends with a 20-question exam built on realistic treasurer scenarios. Pass it, and Board Director Institute issues a Certificate of Completion. That certificate records that you finished the course. It is not accreditation, CPE credit, a license or a professional certification.
If you want your first ninety days on one page first, download the free checklist above.