Lesson 3 of 9 · about 16 minutes
Funds, Budget Books and Audits: Reading the Documents
You'll be able to
- Tell general, special revenue, capital, debt service and enterprise funds apart
- Find revenue, spending, transfers and fund balance in a budget document
- Calculate how many months of reserves a general fund holds
- Know which Idaho local governments must be audited and where audits are filed
Governments do not keep their money in one pot. They keep it in funds, each a separate set of books with its own revenue, spending and savings. Once you can see the funds, a 200-page budget book shrinks to a handful of questions. Without them, you will end up saying the city "has $40 million in the bank" when $30 million of it is locked to sewer bonds.
Idaho Code 50-1002 requires a city budget to itemize spending "by department, fund, or service," so the fund structure is right there in the notice and the budget book.
The fund types
| Fund type | What goes in it | Typical money source | Question to ask |
|---|---|---|---|
| General fund | Police, administration, planning, parks: anything without its own dedicated money | Property tax, state shared revenue, fines, some fees | How big is the reserve, and is it shrinking? |
| Special revenue funds | Activities with a dedicated revenue source, like streets paid by highway user funds, or a library levy | Restricted taxes, grants, dedicated levies | Is the money being spent on what voters approved it for? |
| Capital projects funds | Building or buying big long-lived things: a fire station, a school | Bond proceeds, grants, transfers, impact fees | Is the project on budget and on time? |
| Debt service funds | Paying principal and interest on general obligation bonds | Bond levies on the tax bill | When does each bond retire? |
| Enterprise funds | Water, sewer, garbage, airport, golf course | User charges and revenue bonds | Do rates cover costs, and does money move out to other funds? |
| Internal service funds | Services one department sells to others, like vehicle maintenance or insurance | Charges to other departments | Are departments being overcharged to hide costs? |
| Fiduciary funds | Money the government holds for someone else, like a pension trust or taxes collected for other districts | Various | Usually background, except when pension funding is short |
Small districts may have only two or three funds. A county may have forty. Counties are big on fiduciary money because the treasurer collects taxes for every district and passes them on.
Fund balance: the savings account
Fund balance is what is left in a fund after its bills. GASB Statement 54 splits it into five categories: nonspendable (like inventory), restricted (by law or a grant), committed (by the board's own formal action), assigned (set aside for an intended use) and unassigned. The last three together are "unrestricted" fund balance, the money the board could actually redirect.
The Government Finance Officers Association (GFOA) recommends that general-purpose governments keep unrestricted general fund balance of "no less than two months" of regular general fund revenues or spending. That is a floor, and GFOA says each government should set its own level by its risks. A town that depends on one big employer, or that gets wildfire seasons, may want more.
Example: is Larkspur's reserve healthy?
The invented city of Larkspur's general fund:
| Line | FY2025 actual |
|---|---|
| Revenues | $9,200,000 |
| Expenditures | $9,000,000 |
| Transfer in from water fund | $300,000 |
| Unassigned fund balance at year end | $1,100,000 |
Months of spending covered: $1,100,000 / $9,000,000 = 0.122. Times 12 months = 1.47 months.
GFOA's two-month floor would be $9,000,000 / 12 x 2 = $1,500,000. Larkspur is $400,000 short.
Now look at the transfer. Without the $300,000 from the water fund, revenues minus spending would be $9,200,000 - $9,000,000 = $200,000. With it, $500,000. So more than half of this year's general fund surplus came from water customers. That might be a legitimate payment for services the general fund provides to the water utility, like billing staff or city hall space. It might be a quiet subsidy. Ask for the written cost allocation study that justifies it.
How to read a budget book in twenty minutes
- Find the summary by fund. Most budget books have a one-page table of every fund: beginning balance, revenue, spending, transfers, ending balance. Start there.
- Read the general fund revenue page. Note property tax as a share of the total. Look for one-time money (grants, land sales) propping up ongoing spending.
- Read spending by department, then by category. Salaries and benefits are usually the biggest category in a general fund, so a small percentage raise is a big dollar number.
- Find the transfers. Money in and out of each fund. Any transfer from an enterprise fund to the general fund deserves a question.
- Compare ending fund balance to last year. A budget that plans to spend reserves is a choice someone should explain.
- Look at the capital plan. Projects listed for future years tell you what bond or levy request is coming.
Audits and the ACFR
Idaho Code 67-450B sets minimum audit rules for every city, county and district that is its own legal entity:
| Annual spending from all sources | Minimum audit requirement |
|---|---|
| More than $300,000 | Full audit of financial statements every fiscal year |
| More than $200,000 up to $300,000 | Annual audit, or a biennial audit if the entity chooses, under conditions in the statute |
| $200,000 or less | No minimum requirement under this section |
The audit must follow government auditing standards set by the U.S. Government Accountability Office, the auditor must be hired on written contract, and the entity must file a copy with the Legislative Services Office within nine months after the end of the audit period. Federal grant rules can require more. So you can request a district's audit from the district or from the Legislative Services Office.
When you get one, read these parts first:
- The auditor's opinion. A "clean" or unmodified opinion means the statements are fairly presented. Anything else (qualified, adverse, or a disclaimer) is a red flag.
- Management's discussion and analysis. The government's own plain-language summary of the year.
- Findings and the management letter. Weak controls, late reconciliations, one person handling both deposits and the books. Small-town embezzlement cases often surface here first.
- Notes on debt and pensions. Every bond, its rate and when it ends.
Larger governments often publish an ACFR. The C is a word this course's style rules ban, so the letters will do. GASB renamed the old CAFR to ACFR in Statement 98 in 2021 without changing its contents. An ACFR adds an introductory section and a statistical section with ten years of trends: tax rates, top taxpayers, debt per resident. GFOA runs a voluntary certificate program, started in 1945, that reviews these reports. The certificate is about the quality of the report, and GFOA says plainly it is not a rating of the government's financial health.
Common mix-ups
- Claim: The city has millions sitting in the bank, so it does not need a rate increase. What the evidence shows: Check which fund holds it and how it is classified. Restricted bond money and committed capital reserves cannot pay for the general fund. Unassigned general fund balance is the honest comparison.
- Claim: A clean audit means the government spends wisely. What the evidence shows: An audit opinion says the numbers are fairly presented. It says nothing about whether the spending was smart.
- Claim: Fund transfers are illegal raids. What the evidence shows: Many are legal payments for shared services. The question is whether a documented cost study supports the amount.
Reporting angle
- Request the last three audits and management letters. Track whether the same findings repeat.
- Build a five-year table of general fund unassigned balance and convert it to months of spending.
- List every transfer out of an enterprise fund and ask for the cost allocation study behind it.
- If a district spends over $300,000 a year and has no recent audit on file, ask why. That is a 67-450B question.
Research angle
- Idaho Code 67-450B: independent financial audits of local governments.
- Idaho Code 50-1002: the annual city budget, where any interested person may appear.
- Idaho Code 50-1003: the annual appropriations bill and enterprise fund amendments.
- GFOA fund balance guidelines: the finance officers' benchmark for general fund reserves.
- GFOA Certificate of Achievement: what a top-rated annual financial report looks like.
Check yourself
1. A city's water department charges customers and pays its own costs from those charges. Which kind of fund usually holds that money?
Enterprise funds hold business-like activities paid for mostly by user charges, such as water, sewer and garbage.
2. A general fund spends $12 million a year and ends the year with $1.5 million unassigned. Roughly how many months of spending does that cover?
$1.5 million divided by $12 million times 12 months equals 1.5 months, below GFOA's two-month minimum.
3. Under Idaho Code 67-450B, a local government that spends more than $300,000 a year from all sources must:
67-450B requires a full and complete audit each fiscal year when annual expenditures exceed $300,000.
4. Where must an Idaho local government file its completed audit, and how fast?
67-450B(1)(d) requires filing one copy with the legislative services office within nine months after the end of the audit period.
5. What does a transfer between funds usually tell you?
Transfers show money moving between purposes, such as a water fund sending money to the general fund. They are legal in many cases but always worth a question.
6. GASB Statement 98, issued in 2021, did what to the CAFR?
Statement 98 changed the report's name and acronym to ACFR; the structure and content stayed the same.
Terms in this lesson
- Fund
- A separate set of accounts for money with a specific purpose or legal restriction. Governments keep many funds instead of one checking account.
- General fund
- The main operating fund for things without a dedicated revenue source, such as police, administration and parks.
- Enterprise fund
- A fund for a service run like a business and paid mostly by user charges, such as water or sewer.
- Fund balance
- What is left in a fund after liabilities: the government's savings for that fund, split into categories by how freely it can be spent.
- ACFR
- The fullest annual financial report a government can publish, with introductory, financial and statistical sections. Formerly called the CAFR.
- Transfer
- Money moved from one fund to another inside the same government.
Sources
- GFOA Best Practice: Fund Balance Guidelines for the General Fund checked 2026-10
- GFOA Certificate of Achievement for Excellence in Financial Reporting checked 2026-10
- Deloitte DART: GASB Changes Report Name to Annual Comprehensive Financial Report (Statement 98) checked 2026-10
- Idaho Code 67-450B, Independent financial audits of local governmental entities checked 2026-10
- Idaho Code 50-1002, Annual budget (itemized by department, fund or service) checked 2026-10
- Idaho Code 50-1003, Annual appropriations bill (enterprise fund amendments) checked 2026-10