⚠ A Tax Audit From Before the DealLow threat

Analog Devices (ADI) — threat to the moat

ADI inherited an IRS audit of Maxim's tax years 2015 to 2021, in a company whose effective tax rate has swung between 8% and 32%.

An acquirer buys the past as well as the future. ADI's filings disclose "a pre-Acquisition IRS income tax audit for Maxim Integrated Products, Inc.’s (Maxim) fiscal years ended June 27, 2015 through August 26, 2021"1. Those are six years of another company's returns, and any liability that emerges now belongs to ADI.

Analog Devices effective tax rate (%)8.0FY202416.4FY202532.1Q3 FY202513.3Q3 FY2026Analog Devices Q4 FY2025 and Q3 FY2026 results releases
The rate has moved by more than twenty points between quarters.

The filings give no amount for the audit, so the page cannot estimate one. What they do show is how much the tax rate already moves. The effective rate was 8.0 percent in fiscal 2024 and 16.4% in fiscal 20252; it was 32.1% in the third quarter of fiscal 2025 and 13.3% a year later3. A company whose tax charge swings that much between periods has little room to absorb a large settlement without it showing in earnings.

The wider point is that acquisitions carry costs that never appear in the purchase price. Tax audits, legacy contracts, environmental obligations and pension plans arrive with the business. ADI has bought two very large companies in five years and is now buying Empower and Alif45; each brings its own history.

This danger is rated low because the filings describe the audit as routine and give no sign of a large exposure. It would become serious if ADI recorded a charge above $500 million related to pre-acquisition Maxim tax years, which would add a cash cost to a deal already struggling to earn its capital.

References
  1. ReportedADI's filings disclose "a pre-Acquisition IRS income tax audit for Maxim Integrated Products, Inc.’s (Maxim) fiscal years ended June 27, 2015 through August 26, 2021".
    Analog Devices Form 10-K for fiscal 2024 (year ended 2 November 2024) - the fiscal 2024 downturn, end-market revenue for 2022-2024 and the distributor table including 2022. — FY2024 · publ. November 2024 · source ↗
  2. ReportedThe effective rate was 8.0 percent in fiscal 2024 and 16.4% in fiscal 2025; it was 32.1% in the third quarter of fiscal 2025 and 13.3% a year later.
    Analog Devices fourth-quarter and fiscal 2025 results release, Form 8-K exhibit 99.1 - full-year income statement, adjusted measures, cash flow, capital returns and balance sheet. — FY2025 · publ. 25 November 2025 · source ↗
  3. ReportedThe effective rate was 8.0 percent in fiscal 2024 and 16.4% in fiscal 2025; it was 32.1% in the third quarter of fiscal 2025 and 13.3% a year later.
    Analog Devices third-quarter fiscal 2026 results release, Form 8-K exhibit 99.1 - revenue by end market, margins, EPS, cash flow, balance sheet and fourth-quarter guidance - highlights, income statement, adjusted measures and fourth-quarter guidance. — Q3 FY2026 · publ. 19 August 2026 · source ↗
  4. ReportedADI has bought two very large companies in five years and is now buying Empower and Alif; each brings its own history.
    Analog Devices Form 10-Q for the quarter ended 1 August 2026 - end-market and channel revenue, the Empower acquisition, the Penang sale, the buyback authorisation and the chief operating decision maker. — Q3 FY2026 · publ. 19 August 2026 · source ↗
  5. ReportedADI has bought two very large companies in five years and is now buying Empower and Alif; each brings its own history.
    Analog Devices release of 9 September 2026, Form 8-K exhibit 99.1 - agreement to acquire Alif Semiconductor for $1.35 billion in cash plus up to $200 million of contingent consideration. — September 2026 · publ. 9 September 2026 · source ↗
Sources
Generated September 29, 2026