How LDTI Shapes Insurance Income Statements

The Financial Accounting Standards Board’s long-duration targeted improvements (LDTI) standard drives more visible volatility and transparency in insurance income statements, changing how insurers report and explain financial performance.

Most large public insurers and, more recently, other insurance entities have now reported under Accounting Standards Update (ASU) 2018-12, “Financial Services – Insurance (Topic 944): Targeted Improvements to the Accounting for Long-Duration Contracts,” commonly referred to as LDTI. ASU 2022-05 subsequently amended certain transition requirements for contracts sold or disposed of before the LDTI effective date. What began as a technical accounting change has become something more consequential: a shift in how financial performance is reported and explained.

Under the prior model, many elements of long-duration contract accounting introduced a degree of smoothing – amortizing assumption changes and deferring certain market impacts – and the income statement often reflected a more gradual pattern of earnings emergence. The LDTI framework is more current and market-aligned, and it recognizes changes more immediately.

Several annual reporting cycles for large public insurers and the initial annual reporting cycle for many other entities have provided a clearer view of how LDTI operates in practice. Across Form 10-K filings and earnings materials, a consistent pattern has emerged: Earnings are less linear, more episodic, and more dependent on explanation.

One of the most noticeable changes is the way assumption updates now appear in results. Under LDTI, updates to mortality, lapse, and expense assumptions are recognized as they occur rather than spread over time. For some insurers, these updates have produced significant discrete movements in earnings and shareholders’ equity within a single reporting period. What previously would have been absorbed gradually into results now shows up as a step change. The economics of the contractual exposure have not changed, but the timing and the visibility of their recognition have.

At the same time, market sensitivity has become more pronounced, particularly for products with guarantees. Fair value changes associated with market risk benefits generally now flow directly through earnings, introducing quarter-to-quarter variability tied to equity markets and interest rates. Even when underlying business performance is stable, reported results can swing meaningfully based on external conditions. In response, many insurers have recalibrated their non-GAAP metrics to isolate these effects.

Perhaps the most telling shift, however, is not just in the numbers themselves but in how companies talk about them. Earnings releases and investor materials increasingly emphasize adjusted or “core” measures of performance, accompanied by detailed explanations of assumption changes, market impacts, and other accounting-driven movements. This reflects a broader reality: Under LDTI, the income statement is more transparent in what it captures but less intuitive on its own. Interpretation has become a central part of financial reporting.

Taken together, these changes amount to a different operating dynamic for the income statement. Prior to LDTI, assumption-driven impacts tended to be smaller and more diffused, market effects were partially muted, and reported earnings followed a relatively stable trajectory. Post-adoption, those effects can be more visible and more variable from period to period.

LDTI has not simply altered accounting mechanics; it has reshaped how performance is evaluated and communicated. Many insurers now operate with a dual focus: GAAP results that reflect the full volatility of the new model and non-GAAP metrics that help stakeholders understand underlying performance. The organizations navigating this most effectively are not attempting to eliminate volatility; they are building the capability to interpret and explain it.

What comes next: Moving from implementation to operating model

For insurers that have completed their 2025 reporting cycle, attention now shifts from implementation to sustainability. The core requirements of LDTI might be in place, but in many cases the surrounding operating model is still maturing.

In the near term, the move to more frequent and immediate assumption updates requires a disciplined, repeatable process supported by credible experience studies and clear model governance. What might have been sufficient for initial adoption often needs to be formalized and strengthened to withstand ongoing audit scrutiny and internal expectations.

At the same time, many organizations are addressing the realities of their first-year close processes under the LDTI framework. Initial implementations frequently relied on manual workarounds, fragmented data flows, or end-user tools (spreadsheets and other tools that are not integrated with a controlled IT system) to bridge gaps. As reporting becomes business as usual, insurers are working to streamline these processes – reducing cycle times, improving data lineage, and embedding stronger controls across actuarial and finance functions.

The interaction between actuarial results and financial planning is also coming into sharper focus. LDTI changes how earnings emerge, introducing new forms of volatility that must be understood and incorporated into forecasting, budgeting, and performance management. This often requires rethinking how GAAP results are translated into internal views of performance as well as how those views are communicated to leadership.

Finally, insurers are refining how they present results externally. First-year disclosures tend to prioritize technical compliance; subsequent cycles create an opportunity to improve clarity, consistency, and decision-usefulness. As stakeholders become more familiar with LDTI, their expectations of transparency and narrative coherence are increasing.

In practical terms, the industry is entering a second phase of LDTI – one defined less by compliance deadlines and more by operational discipline. The accounting change is largely implemented, but the capabilities required to report effectively are still evolving.

Insurers can take these actions now:

• Formalize assumption governance with clear refresh cycles and documentation.
• Reduce reliance on manual processes and end-user tools in close.
• Strengthen internal controls around data, models, and reporting flows, including SOX controls where applicable.
• Incorporate LDTI-driven volatility into financial planning and analysis and forecasting models.
• Enhance disclosures to better explain earnings drivers.
• Conduct post-implementation reviews to identify gaps and optimization opportunities.