Grade: C — Some Red Flags, Investigate
Framework: Schilit *Financial Shenanigans* + Beneish M-Score + forensic accounting principles
Data: SEC EDGAR 10-K (FY ending June 30, 2025, filed August 2025) + Yahoo Finance
Auditor: Deloitte & Touche LLP — Clean opinion (2 critical audit matters: goodwill impairment, revenue recognition)
One-line verdict: ADP is a high-quality compounder with one genuine red flag: goodwill and intangibles at 79% of equity, driven by the $1.17B WorkForce Software acquisition and $880M in associated goodwill. Strip that out and the business is textbook clean — revenue grew 7% to $20.6B, FCF of $4.4B exceeds net income of $4.1B, M-Score is clean at -2.44, and client retention runs approximately 13 years in Employer Services. Deloitte flagged goodwill in the Employer Services segment as a critical audit matter specifically because "forecasts of future revenue and operating margin from the Company's next-gen platform, for which there is limited historical data, contribute significantly to the estimate of fair value." The concern is whether ADP is paying too much for growth acquisitions — not whether the core business is deteriorating.
| Metric | Result |
|---|---|
| Red Flags | **1** (goodwill/intangibles at 79% of equity) |
| Watch Items | **2** (cash vs debt, goodwill surge +32%) |
| Checks Completed | **18/18** |
| Beneish M-Score | **-2.44** (clean) |
| Altman Z-Score | **2.65** (safe zone) |
The Payroll Monopoly and Its Float
ADP processes payroll for more than 1.1 million clients. From the 10-K: "No single client or group of affiliated clients accounted for revenues in excess of 2% of our annual consolidated revenues." Client retention is estimated at approximately 13 years in Employer Services and approximately 6 years in PEO — extraordinary stickiness driven by the enormous switching costs of payroll systems integrated with tax filing, benefits, time tracking, and HR records.
The business has a unique embedded advantage: client funds float. ADP holds $37.6B in average client fund balances — money collected from employers before being remitted to employees and tax authorities. In FY2025, interest on these funds generated $1,189M in revenue (up from $1,025M in FY2024), at an average yield of 3.2% (up from 2.9%). This is essentially free money from the float — a Berkshire Hathaway-style advantage built into a payroll company.
| Metric | FY2022 | FY2023 | FY2024 | FY2025 | Trend |
|---|---|---|---|---|---|
| Revenue | $16.5B | $18.0B | $19.2B | $20.6B | Steady growth |
| Net Income | $2.9B | $3.4B | $3.8B | $4.1B | Steady growth |
| Gross Margin | 42.6% | 44.7% | 45.4% | 46.0% | Rising 4 consecutive years |
| Net Margin | 17.9% | 18.9% | 19.5% | 19.8% | Rising |
| ROE | 91.4% | 97.2% | 82.5% | 65.9% | Declining (equity growing) |
Four consecutive years of revenue growth, margin expansion, and growing net income. This is a rare earnings quality profile.
Segment Performance (from 10-K)
| Segment | FY2025 Revenue | FY2024 Revenue | Growth | Margin FY2025 | Margin FY2024 |
|---|---|---|---|---|---|
| Employer Services | $13,883M | $12,981M | +7% | 36.1% | 35.1% |
| PEO Services | $6,690M | $6,234M | +7% | 14.2% | 14.8% |
| **Total** | **$20,561M** | **$19,203M** | **+7%** | — | — |
From the 10-K: "Employer Services' revenues increased in fiscal 2025 due to new business started from new business bookings, strong client retention, an increase in pricing, an increase in interest earned on funds held for clients, the impact from the WorkForce Software acquisition, and an increase in the volume of our pays per control of 1%."
Employer Services margin expanded 100bps to 36.1%. PEO Services margin compressed 60bps to 14.2% — the PEO model (ADP is the co-employer, responsible for benefits and workers' comp) carries structurally lower margins and is more sensitive to healthcare cost inflation.
Revenue Composition (from 10-K)
| Component | FY2025 | FY2024 |
|---|---|---|
| Revenues, other than interest and PEO | $12,692M | $11,954M |
| Interest on funds held for clients | $1,189M | $1,025M |
| PEO revenues | $6,680M | $6,224M |
| **Total** | **$20,561M** | **$19,203M** |
Expense Detail (from 10-K)
| Item | FY2025 | FY2024 | Change |
|---|---|---|---|
| Operating expenses | $9,623M | $9,050M | +6% |
| R&D | $989M | $956M | +3% |
| D&A | $486M | $471M | +3% |
| SG&A | $4,052M | $3,779M | +7% |
| Interest expense | $456M | $361M | +26% |
Interest expense surged 26% to $456M — reflecting the debt taken on for the WorkForce Software acquisition plus higher rates. R&D investment of $989M ($1.39B including capitalized) is focused on the ADP Lyric HCM next-gen platform.
Cash Flow: Clean and Growing
| Metric | FY2022 | FY2023 | FY2024 | FY2025 |
|---|---|---|---|---|
| Operating Cash Flow | $3.1B | $4.2B | $4.2B | $4.9B |
| Net Income | $2.9B | $3.4B | $3.8B | $4.1B |
| **CFFO / Net Income** | **1.05** | **1.23** | **1.11** | **1.21** |
| Free Cash Flow | $2.5B | $3.6B | $3.6B | $4.4B |
| CapEx | $547M | $572M | $563M | $547M |
CFFO/NI averaging 1.15x over four years — consistently above 1.0, meaning cash generation exceeds accounting profit. Free cash flow of $4.4B exceeds net income of $4.1B. CapEx is declining slightly while revenue grows — positive operating leverage.
The WorkForce Software Acquisition
In October 2024, ADP acquired WorkForce Software for $1,171M. From the 10-K: "WorkForce Software, a premier workforce management solutions provider that specializes in supporting large, global enterprises. This acquisition expands our current array of global time and attendance, absence management and scheduling tools."
The purchase price allocation:
| Item | Amount |
|---|---|
| Goodwill | $880M |
| Identifiable Intangibles | $292M |
| Cash acquired | $13M |
| Other net assets | ($14M) |
| **Total** | **$1,171M** |
This single acquisition added $880M in goodwill — 75% of the purchase price went to goodwill, meaning only 25% was attributable to identifiable assets. From the 10-K: "The preliminary allocation of the purchase price is based upon estimates and assumptions that are subject to change within the measurement period."
| Item | FY2025 | FY2024 | Change |
|---|---|---|---|
| Goodwill | $3,274M | $2,354M | +$920M (+39%) |
| Intangible assets, net | $1,603M | $1,336M | +$267M (+20%) |
| **Total** | **$4,877M** | **$3,690M** | **+$1,187M (+32%)** |
| Shareholders' Equity | $6,188M | $4,548M | — |
| **Goodwill+Intangibles/Equity** | **79%** | **81%** | — |
The 18-Point Screening
Revenue Quality
| # | Check | Result | Detail |
|---|---|---|---|
| A1 | DSO | Pass | 64 days, -2 days YoY. Improving |
| A2 | AR vs Revenue | Pass | AR growth 4.4% vs revenue growth 7.1% |
| A3 | Revenue vs CFFO | Pass | Revenue +7.1%, CFFO +18.8%. Cash outpaces |
Revenue quality is clean across all three checks. DSO improved, AR grew slower than revenue, and cash flow grew faster than revenue. This is the profile of a high-quality recurring revenue business.
Expense Quality
| # | Check | Result | Detail |
|---|---|---|---|
| B1 | Inventory | Pass | No material inventory |
| B2 | CapEx | Pass | CapEx growth -2.9% vs revenue +7.1% |
| B3 | SG&A Ratio | Pass | SG&A/Gross Profit = 42.8%. Normal |
| B4 | Gross Margin | Pass | 46.0%, +0.6pp. Rising trend |
CapEx declining while revenue grows is a positive signal for a maturing SaaS-like business model. Gross margin has expanded every year for four consecutive years.
Cash Flow Quality
| # | Check | Result | Detail |
|---|---|---|---|
| C1 | CFFO vs NI | Pass | Ratio 1.21. Clean |
| C2 | FCF | Pass | $4.4B, FCF/NI = 1.08 |
| C3 | Accruals | Pass | -1.6%. Low |
| C4 | Cash vs Debt | **WATCH** | Cash $7.8B covers 87% of debt $9.1B |
C4: Cash of $7.8B versus total debt of $9.1B — nearly covered. The gap is new: in FY2024, cash of $3.3B roughly equaled debt of $3.3B. The increase in both cash and debt reflects the WorkForce Software acquisition financing. From the 10-K, long-term debt increased from $3.0B to $4.0B, plus $4.8B in commercial paper borrowings. ADP's investment-grade credit ratings and $37.6B client funds float provide ample liquidity.
Balance Sheet
| # | Check | Result | Detail |
|---|---|---|---|
| D1 | Goodwill + Intangibles | **FAIL** | $4.9B = 79% of equity |
| D2 | Leverage | Pass | Debt/EBITDA = 1.4x. Healthy |
| D3 | Soft Assets | Pass | Other assets -4.5% vs revenue +7.1% |
| D4 | Impairment | Pass | Write-offs normal |
D1: The 79% ratio is entirely driven by the WorkForce Software acquisition. Without that deal, goodwill/equity would be approximately 55% — still above the 50% threshold but far less alarming. The question is whether ADP paid a fair price for WorkForce Software.
Acquisition & Manipulation
| # | Check | Result | Detail |
|---|---|---|---|
| E1 | Serial Acquirer | Pass | FCF after acquisitions positive |
| E2 | Goodwill Surge | **WATCH** | Goodwill+Intangibles surged 32% YoY |
E2: A 32% surge in goodwill and intangibles in a single year is a yellow flag in any screening framework. The entire surge is attributable to WorkForce Software ($880M goodwill + $292M intangibles).
| F1 | M-Score | Pass | -2.44, clean. No manipulation signal |
|---|
Deloitte Critical Audit Matters
Deloitte identified two critical audit matters:
1. Goodwill — Employer Services Reporting Unit. From Deloitte's report: "Forecasts of future revenue and operating margin from the Company's next-gen platform, for which there is limited historical data, contribute significantly to the estimate of fair value of a reporting unit within the Employer Services reportable segment with approximately $683 million of goodwill." The issue: ADP's goodwill impairment test relies on discounted cash flow projections for the ADP Lyric HCM platform, which launched in September 2024 and has limited operating history. If Lyric underperforms projections, the $683M goodwill in that reporting unit could be impaired.
2. Revenue Recognition. Deloitte flagged revenue recognition due to the complexity of ADP's multiple-element arrangements and the judgment required in allocating revenue across performance obligations. With $20.6B in total revenue flowing through diverse contract structures (subscriptions, implementations, PEO pass-throughs), the revenue allocation methodology is a meaningful audit judgment area.
Deloitte has served as ADP's auditor since 1968 — 57 consecutive years.
Key Risks from Item 1A
1. Regulatory risk to the client funds float. From the 10-K: "a change in regulations either decreasing the amount of taxes to be withheld or allowing less time to remit taxes to government authorities would adversely impact average client balances and, thereby, adversely impact interest income from investing client funds." The $1.2B in interest income depends on the regulatory structure that allows ADP to hold client funds.
2. Interest rate sensitivity. From the 10-K: "Changes in laws or regulations could also cause us to modify our client funds investment strategy, which may reduce the interest income earned on such funds." If rates fall significantly, the $1.2B interest income stream shrinks.
3. Competition and AI disruption. From the 10-K: the company invests heavily in "generative AI" as part of its R&D spend. While ADP's switching costs protect against displacement, AI-native payroll competitors could compress pricing over time.
4. PEO co-employment risk. From the 10-K: "Changes in laws, or interpretations thereof, that govern the co-employment arrangement between a professional employer organization and its worksite employees may require us to change the manner in which we conduct some aspects of our business." The PEO model ($6.7B revenue) depends on the legal co-employment framework remaining intact.
Altman Z-Score and F-Score
| Model | Score | Interpretation |
|---|---|---|
| Altman Z-Score | **2.65** | Safe zone (>2.59). Adequate margin |
| F-Score (Dechow) | **1.90** | Low fraud probability (0.70%) |
The Z-Score of 2.65 is in the safe zone but close to the grey zone boundary (2.59). The high soft asset ratio (0.92 — driven by deferred contract costs and client funds-related assets) is the main contributor to the F-Score. The fraud probability of 0.70% is low but slightly elevated compared to other NASDAQ 100 companies, reflecting the high proportion of intangible and deferred assets.
Summary
| # | Check | Result |
|---|---|---|
| A1-A3 | Revenue Quality | Pass-Pass-Pass |
| B1-B4 | Expense Quality | Pass-Pass-Pass-Pass |
| C1-C4 | Cash Flow Quality | Pass-Pass-Pass-Watch |
| D1-D4 | Balance Sheet | Fail-Pass-Pass-Pass |
| E1-E2 | M&A Risk | Pass-Watch |
| F1 | Beneish M-Score | Pass |
Grade: C. Investigate the goodwill, but the core business is strong.
ADP is one of the cleanest businesses in the NASDAQ 100. Revenue quality is perfect (all three checks pass). Cash flow quality is strong (CFFO/NI of 1.21, FCF exceeding net income). Margins have expanded for four consecutive years. The M-Score is clean. Client retention of ~13 years in Employer Services reflects genuine economic moats.
The C grade comes entirely from the balance sheet: goodwill plus intangibles at 79% of equity following the WorkForce Software acquisition, with a 32% YoY surge in intangible assets. Deloitte specifically flagged the goodwill impairment test for the next-gen platform as a critical audit matter due to limited historical data. If ADP Lyric HCM succeeds, the goodwill is justified. If it doesn't, write-downs are coming.
The risk here is acquisition discipline, not business quality. ADP's core payroll monopoly — 1.1 million clients, $37.6B in client funds float, 13-year average retention — is as defensible as any business in the index.
**Disclaimer**: This report is based on ADP's FY2025 10-K (SEC EDGAR, fiscal year ending June 30, 2025) and public financial data. This is NOT investment advice.
Data: SEC EDGAR 10-K (FY ending June 30, 2025) + Yahoo Finance
Auditor: Deloitte & Touche LLP (Unqualified opinion, 2 critical audit matters)
