ASC 450 Loss Contingency — Probable Test

What makes a loss contingency probable and estimable under ASC 450-20-25-2?
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US GAAP

ASC 450 Loss — Core Rule

Under ASC 450 Loss Contingency — Probable Test, a loss contingency must be accrued when (1) it is probable that a liability has been incurred as of the balance sheet date and (2) the amount can be reasonably estimated — both conditions must be met simultaneously before any charge hits the income statement.

How ASC 450 Loss Works

  • Definition of "probable": ASC 450-20-20 defines probable as "the future event or events are likely to occur." In practice, Big Four firms and the SEC interpret this as roughly a 75–80%+ likelihood threshold — meaningfully higher than "more likely than not" (>50%). The standard does not assign a percentage, which creates significant judgment.
  • Recognition trigger — dual test: ASC 450-20-25-2 requires accrual only when both conditions are met: (a) information available before the financial statements are issued indicates it is probable that an asset has been impaired or a liability incurred, and (b) the amount of loss can be reasonably estimated. If either condition is absent, accrual is prohibited.
  • Measurement — best estimate vs. range: ASC 450-20-30-1 requires accrual of the best estimate within the range of possible loss. If no amount within the range is a better estimate than any other, ASC 450-20-30-1 mandates accrual of the minimum of the range — not the midpoint, not the maximum. This is a common exam and audit trap.