Local government investment pools (LGIPs) are often discussed as if they are interchangeable with other investment pool products. In practice, subtle differences in accounting framework and audit standards can materially change how these pools look, how they’re audited and how stakeholders interpret their financial statements.
Understanding these distinctions is essential not just for accountants and auditors, but also for treasury professionals, governing boards and policymakers who rely on LGIPs as mission critical cash management tools. Clear reporting frameworks help these stakeholders compare pools appropriately and avoid drawing conclusions that don’t match a pool’s strategy or legal structure.
At the heart of most confusion is the distinction between GASB 79 accounting and fair value accounting. Although both are acceptable in the right circumstances, they communicate different priorities to readers of the financial statements.
GASB 79 allows qualifying external investment pools to measure investments at amortized cost and transact at a stable net asset value (NAV). This approach is intentionally conservative and liquidity focused, aligning with how most governments use LGIPs: as extensions of cash, not as vehicles for market timing or total return.
Fair value accounting, by contrast, reflects mark to market valuation, with changes in interest rates and credit spreads flowing directly through the financial statements. This model is typically used when pools extend duration, take on additional risk or pursue strategies beyond daily operating liquidity.
Critically, neither approach is “better.” Each tells a different story: GASB 79 emphasizes stability, compliance and liquidity, whereas fair value emphasizes transparency, market risk and return volatility. The accounting choice should follow the investment strategy, not the other way around.
These differences also highlight a broader contrast between FASB and GASB accounting frameworks. FASB standards are designed for capital markets and investor decision making: fair value is central, volatility is expected and users are assumed to be sophisticated market participants.
GASB standards, on the other hand, are rooted in public accountability and stewardship. They recognize governments and their agencies manage resources under legal, policy and operational constraints, and showing daily market volatility for operating cash can obscure rather than clarify decision making. This philosophical divide explains why GASB permits amortized cost and stable NAV reporting for qualifying LGIPs, while FASB largely defaults to fair value for traded assets.
Whether an LGIP is audited under GAAS (AICPA Standards) or GAGAS (Yellow Book Standards) is driven by statute, regulation and governance expectations, not by whether the pool reports at amortized cost or fair value.
Either accounting model can support a GAAS only audit, or a GAAS plus GAGAS audit with expanded internal control and compliance reporting. Conflating accounting frameworks with audit standards often leads to unnecessary complexity and, occasionally, incorrect conclusions for readers who assume one choice dictates the other.
While accounting frameworks like GASB 79 and fair value can appear technical, the audit focus is straightforward. Auditors ask whether the accounting and reporting model faithfully reflects how the pool is designed to operate, and whether controls and governance practices support that model consistently.
When an LGIP reports under GASB 79, the audit emphasis shifts away from daily market pricing and toward ongoing compliance and discipline. Auditors focus on whether the pool is genuinely operating as a stable value cash management vehicle, and whether the pool’s policies and practices support that objective throughout the year.
In practical terms, auditors review how the pool’s investment policy, monitoring reports and governance processes ensure that maturity, liquidity, credit quality and diversification standards are met consistently — not just at year end. Deviations are not automatically problematic; what matters is whether they were identified, evaluated for significance, documented and addressed appropriately.
Even under GASB 79, auditors continue to look closely at shadow pricing. Shadow pricing compares amortized cost values to market based values to confirm whether there is significant impairment within the investment holdings, i.e., if the stable value remains supportable and differences stay within established tolerances.
From an audit perspective, shadow pricing demonstrates risk awareness. Auditors expect it to be performed regularly using independent pricing sources, with clearly defined thresholds for investigation and escalation. The goal is not to introduce market volatility into the financial statements, but to ensure potential issues are identified early and addressed thoughtfully.
Rather than re pricing every security, auditors evaluate the magnitude and trend of differences between amortized cost and fair value over time. Stable, explainable differences generally support continued GASB 79 reporting and may be consistent with the pool’s duration and rate environment. Larger or volatile differences may prompt additional scrutiny, enhanced disclosure considerations or a closer look at whether the pool continues to meet GASB 79 eligibility requirements.
For LGIPs that report at fair value, the audit focus shifts toward valuation processes, pricing sources and transparent disclosure of market risks. Auditors look for consistent pricing methodologies, appropriate use of independent pricing services, and clear documentation of any pricing challenges or overrides. In these pools, market volatility is an expected and intentional part of the reporting model rather than something to be minimized or managed away.
Audit standards influence how an audit is planned, what additional work may be required and how results are communicated to stakeholders. GAAS establishes the baseline for obtaining reasonable assurance the financial statements are free of material misstatement, including requirements for risk assessment, evidence and reporting.
GAGAS builds on GAAS by adding requirements around ethics, independence, quality control, and additional reporting on internal control and compliance, when applicable. For many public entities, a Yellow Book audit is required by law or funding terms, and it signals a broader accountability framework. Importantly, it does not automatically imply a pool is riskier or its accounting model is less credible; it simply reflects the standards the auditors must follow and the reporting stakeholders expect.
LGIPs are not a one size fits all product. Accounting and audit choices are deliberate, policy driven decisions that reflect how public funds are managed, safeguarded and reported. When understood correctly, GASB 79 and fair value standards can both be appropriate when aligned with strategy, and GAAS and GAGAS address accountability rather than valuation. Differences in presentation often signal intentional design, not heightened risk. For stakeholders evaluating LGIPs, the most important question isn’t “Which model is used?” It’s “Does the accounting and audit framework faithfully reflect how the pool is intended to operate?”
Contact Matt Boughton or a member of your service team to discuss this topic further.
In this blog Cohen & Co is not rendering legal, accounting, investment, tax or other professional advice. Rather, the information contained in this blog is for general informational purposes only. Any decisions or actions based on the general information contained in this blog should be made or taken only after a detailed review of the specific facts, circumstances and current law with your professional advisers.