How do enacted tax rate changes affect existing DTAs and DTLs on the balance sheet?

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AcadiFi · Accepted Answer

When a new tax rate is enacted (substantively enacted under IFRS), all existing DTAs and DTLs must be remeasured to the new rate in the period of enactment, regardless of when the temporary differences reverse. The adjustment flows through income tax expense from continuing operations, unless the original deferred balance was recognized through OCI or equity (then the remeasurement also flows there — this is called backwards tracing under IFRS, but US GAAP generally runs the entire adjustment through the income statement). For Velora: the original DTL of $4.2M implies an underlying temporary difference of $4.2M / 0.25 = $16.8M. Remeasured at 22%: $16.8M × 0.22 = $3.696M. The $504K reduction is a credit to tax expense — a one-time boost to net income in the enactment year. ```mermaid flowchart LR A[Rate Change
Enacted] --> B[Remeasure
DTA DTL] B --> C[Adjustment to
Tax Expense] C --> D[One-Time
Earnings Impact] ``` Analysts must strip out this non-recurring benefit when forecasting sustainable earnings. A company with large net DTLs benefits from rate cuts; one with large net DTAs suffers (think banks after 2017 TCJA — Citi took a ~$22B charge).

How do enacted tax rate changes affect existing DTAs and DTLs on the balance sheet?

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