SOX

SOX Q2 2026 Deadlines: Filing Calendar, PCAOB Updates & Compliance Checklist

Q2 2026 is half-over. Here is the exact filing calendar, PCAOB standard changes, and the compliance checklist you need before the proxy statement and Q1 10-Q close.

What Makes Q2 2026 Different

Q2 2026 is half-over — but in SOX terms, it's a deadline minefield. The Q1 10-Q filed in May was just the warm-up. The real pressure builds through June and into the August 10-Q window. If you are an accelerated or large accelerated filer, you already know the clock is ticking on Section 302 certifications, ITGC testing cycles, and the external auditor's review of your internal controls.

This post covers the filing dates that matter, the PCAOB updates that changed what auditors are looking for, and the compliance checklist you need before your next SOX deadline.

10-Q Filing Dates: Q2 2026 by Filer Type

The 10-Q filing deadline is measured from your fiscal quarter end, not the calendar quarter. The table below uses a standard December 31 fiscal year-end.

Filer CategoryPublic Float ThresholdQ2 10-Q DeadlineNotes
Large Accelerated Filer> $700MAugust 14, 202640 days post-quarter-end. 404(b) external auditor attestation required.
Accelerated Filer$75M – $700MAugust 19, 202645 days post-quarter-end. Management ICFR assessment only.
Non-Accelerated Filer< $75MAugust 19, 202645 days post-quarter-end. Smaller reporting company (SRC) scaled disclosures may apply.
Smaller Reporting Company (SRC)< $250MNovember 14, 2026Confirm eligibility with counsel. Scaled reporting available if qualified.

Important: The Q2 10-Q filing (April–June 2026) is due in August, not June. The June 30 date is the proxy statement deadline, not a quarterly report deadline.

Key Date — June 30, 2026: DEF 14A Proxy Statement & Q1 10-Q Wrap

Calendar-year companies must file their proxy statement by June 30. SOX touchpoints include: CEO/CFO Section 302 certification of Q1 results, audit committee report updates, ICFR status disclosure, and any material weakness disclosures from Q1 testing.

PCAOB Updates You Need to Know for 2026

Three PCAOB developments are reshaping how deficiencies get classified and communicated in 2026.

AS 1000 (Overall Responsibilities of the Auditor)

AS 1000 is now fully embedded in audit engagements. It clarifies the auditor's responsibility to form an opinion on the financial statements while also explicitly addressing ICFR. For companies undergoing 404(b) attestation, this means your external auditor is applying a more rigorous internal control testing scope than the pre-AS 1000 standard.

Revised Deficiency Taxonomy

The PCAOB updated its internal control deficiency classification to use a severity gradient: control deficiency, significant deficiency, and material weakness. The intermediate significant deficiency tier means deficiencies that historically might have been managed internally are now formally communicated to audit committees.

Action: Request a briefing from your external auditor on how the updated deficiency taxonomy applies to your current testing scope. Understand the framework now so you can prioritize remediation before year-end.

Quality Indicators (QIs)

The PCAOB's quality indicator framework requires firms to track and report internal metrics. Audit committees should expect their auditor to provide a QI overview as part of annual communications.

Q2 2026 SOX Compliance Checklist

Use this checklist now — before June 30. Every item below has a hard deadline or a downstream consequence if missed.

Before June 30 (Proxy Statement Filing)

By August 14/19 (Q2 10-Q Filing)

Don't Wait for the Audit Committee Meeting

The most common SOX compliance failure in Q2: companies that wait for the scheduled audit committee meeting to escalate control issues. By the time the committee meets, the window for remediation may have closed.

Engage your external auditors early. If there is a control gap, find out now, not the week before filing. Give yourself time to remediate, document it, and present a clean picture to the audit committee.

Use ComplianceStack's SOX compliance tools to assess your ICFR posture, map ITGC controls across your financial reporting environment, and identify gaps before your next Section 302 certification.

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