IRS Internal Revenue Bulletin 2026-07

The IRS published Internal Revenue Bulletin 2026-07, featuring guidance on disciplinary sanctions for tax practitioners, disclosure requirements for reducing tax understatements, and amendments related to SECURE 2.0 Act provisions for retirement plans. This bulletin includes updates to revenue procedures and notices affecting tax return preparers and retirement account administration.

IRS Proposed Regulations on Clean Fuel Production Credit

The IRS has issued proposed regulations concerning the Section 45Z Clean Fuel Production Credit, which applies to clean transportation fuel produced domestically after December 31, 2024. These regulations address eligibility, emissions rates, and claim filing for domestic fuel producers and credit claimants.

IRS Interest Rates for April 1, 2026

The IRS has announced the interest rates for tax underpayments and overpayments for the calendar quarter beginning April 1, 2026. These rates include specific percentages for general underpayments, overpayments, large corporate underpayments, and a reduced rate for corporate overpayments exceeding $10,000.

IRS Internal Revenue Bulletin 2026-10

The IRS published Internal Revenue Bulletin 2026-10 on March 2, 2026. This issue contains an announcement that no articles were submitted for publication in this bulletin, making it an administrative notice regarding the bulletin's content.

IRS Bulletin 2026-11: Tax Updates and Guidance

The IRS has issued Bulletin 2026-11, containing several notices and announcements on tax matters. Key updates include interim guidance on the corporate alternative minimum tax (CAMT), rules for determining material assistance from prohibited foreign entities, and anticipated applicability dates for final regulations on required minimum distributions.

NCSC: Pro-Russia Hacktivists Target UK Organisations with DDoS Attacks

The UK's National Cyber Security Centre (NCSC) has issued guidance warning that pro-Russia hacktivist groups, particularly NoName057(16), continue to target UK organisations with DDoS attacks. The NCSC urges local government and critical infrastructure operators to review and harden their denial-of-service defences.

NCSC Warns of Hacktivist DoS Attacks on UK Organisations

The UK's National Cyber Security Centre (NCSC) has issued a warning regarding persistent denial of service (DoS) attacks by Russian-aligned hacktivist groups targeting UK organisations, particularly local government and critical infrastructure operators. The NCSC urges organisations to review their cyber defences and resilience measures.

NCSC Advises UK Organizations on Middle East Conflict Cyber Threats

The UK's National Cyber Security Centre (NCSC) has issued an alert advising UK organizations to review their cybersecurity posture due to the evolving conflict in the Middle East. The advisory highlights a heightened risk of indirect cyber threats and encourages organizations to implement enhanced monitoring and review their external attack surface.

NCSC Alert: Cisco SD-WAN Exploited Globally

The UK's NCSC, along with international partners, has issued an alert regarding the exploitation of Cisco Catalyst SD-WAN devices. Threat actors are gaining root and persistent access, and organizations are urged to investigate potential compromises and apply security updates.

CYBERUK 2026 Conference Announcement

The UK's National Cyber Security Centre (NCSC) has announced details for the flagship CYBERUK 2026 conference in Glasgow, scheduled for April 21-23. The event will focus on accelerating cyber defences and will feature international security chiefs and industry leaders. Registration for private sector delegates remains open until April 2, 2026.