A deferred-tax valuation-allowance release inflates one quarter's GAAP EPS far above pretax income

Claim

A company that has run cumulative GAAP losses carries a valuation allowance against its deferred tax assets (the accounting judgement that it may never earn enough to use them). When it reaches sustained profitability, it releases that allowance — a one-time, non-cash tax benefit that flows through the income statement and makes net income exceed pretax income for that quarter. The release is genuinely good news about the business (the company now expects to be a taxpayer), but the EPS it produces is not repeatable earnings power.

On Twilio's Q2 FY26 the release was $5.91/share — GAAP diluted EPS printed $6.68 on pretax income of only $75.5M (net income $1,067M). Any trailing P/E, and fin.py's Graham IV ($97.59), built on that trailing EPS is meaningless until the benefit rolls off the trailing-twelve-month window ~4 quarters later.

The tell

Net income materially exceeds pretax income, i.e. a large negative effective tax rate for one quarter, on a company that recently crossed from cumulative losses into profit. The cash-flow statement shows no matching cash tax inflow — it is a non-cash deferred-tax entry.

The rule

1. Strip the one-time benefit. Value the business on pretax income, non-GAAP EPS, or FCF — never on the GAAP EPS of the release quarter or the TTM window that contains it.
2. Flag Graham IV / trailing P/E as unusable for ~4 quarters after a release; do not print the number as if valid.
3. Read the tax footnote, not just the EPS line, on any name that recently turned GAAP-profitable after years of losses (SaaS names crossing breakeven are the common case).

Related

Distinct from [[pitfall-tax-valuation-allowance-round-trip-breaks-eps]] — that note covers a tax-law-change-forced writedown/reversal of the DTA; this one is a company-specific release triggered by returning to profitability, an EPS inflation rather than a round-trip. Same governing discipline: a one-time tax line is not earnings power. See also [[pitfall-vendor-forward-eps-is-the-wrong-fiscal-year]], [[principle-primary-source-beats-vendor]].

History

• 2026-08-27 — found during /analyze TWLO, separating operating earnings from the Q2 FY26 DTA valuation-allowance release.