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Graduate-Level Modeling · Financial Reporting & Valuation

Goodwill Impairment Testing Model (ASC 350 / IAS 36)

Goodwill never amortizes, it just waits to be tested. This builds the actual value-in-use DCF, compares it to carrying value, and walks through exactly how an impairment loss gets allocated, capped at the goodwill balance itself.

How To Use This Model

Reading This Tool

Enter the reporting unit's carrying value, goodwill balance, and five years of projected cash flows.

The tool discounts those cash flows plus a terminal value into a value-in-use estimate, compares it to carrying value, and calculates any resulting impairment loss, correctly capped so it never exceeds the goodwill balance itself.

Reporting Unit Inputs

Years 2 through 5 grow from Year 1 at the annual growth rate you set, a simplification of a full multi-line projection for illustrative purposes.

Impairment Test Result

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Goodwill Impairment Loss

$0

Value-In-Use (Fair Value Estimate)

-

Total Carrying Value

-

Carrying Value Vs. Value-In-Use, With Any Impairment

-

-

Why The Loss Is Capped At The Goodwill Balance

-

What Actually Drives This Result

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The Sensitivity Hiding In Your Discount Rate

A goodwill impairment conclusion often hinges entirely on the discount rate and terminal growth assumptions, both genuinely judgment calls. A half-point change in either can flip a "no impairment" conclusion into a material write-down, exactly why auditors scrutinize these two inputs so closely during year-end testing.

Financial Reporting & Fair Value Measurement

The Core Formulas

Value-in-use = ∑t=15 CFt/(1+r)t + TV/(1+r)5
TV = CF5(1+g)/(r−g)
Impairment Loss = min[max(0, Carrying Value − Fair Value), Goodwill Balance]

Under the current single-step US GAAP test (ASU 2017-04), impairment is simply carrying value less fair value, capped at the goodwill balance, eliminating the older two-step hypothetical purchase price allocation. IAS 36 uses the higher of fair value less costs of disposal and value-in-use as the recoverable amount.

When To Actually Use This Model

  • Annual or triggering-event goodwill impairment testing for a reporting unit under US GAAP or IFRS.
  • Teaching fair value measurement and impairment testing in a financial accounting or valuation course.
  • Stress-testing how sensitive an impairment conclusion is to discount rate and cash flow assumptions before finalizing year-end estimates.
  • Preparing supporting documentation an auditor would expect to see behind a goodwill impairment (or no-impairment) conclusion.

Key Assumptions & Limitations

  • This simplified model uses a single reporting unit and a flat annual growth rate; real tests often use detailed, line-item cash flow projections.
  • Qualitative assessment ("Step 0") is often performed first in practice to determine whether a full quantitative test is even necessary.
  • Fair value less costs of disposal, the IFRS alternative recoverable amount test, is not modeled here separately.
  • Real engagements require detailed documentation of market participant assumptions, which this illustrative tool does not capture.

Foundational Reference

Financial Accounting Standards Board. (2017). ASU 2017-04, Simplifying the Test for Goodwill Impairment. FASB Accounting Standards Codification, Topic 350.

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