Summary
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Marosa’s analysis confirms that HMRC’s 2026 Progress Update reaffirms the government’s intention to mandate B2B e-invoicing for all VAT invoices from April 2029. The clearest signal yet on programme sequencing, it confirms that detailed standards and technical requirements are due at Budget 2026—roughly two and a half years ahead of the mandate—giving businesses a defined runway to prepare their accounts payable and receivable systems for structured invoicing. [marosavat.com]
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HMRC and DBT will publish the UK e-invoicing implementation roadmap at Budget 2026, building on co-creation work with industry representatives throughout 2026. HMRC has already launched Policy Development and Technical Workshops with DBT and stakeholders to collaboratively design the UK regime. While the final technical standard is not yet confirmed, commentators note that all signs point toward the Peppol BIS 3.0 standard being adopted for the mandate. [marosavat.com], [ecitdigital.com]
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Marosa advises businesses not to wait for the full roadmap: map current AP/AR invoicing processes to identify manual steps, non-standard formats and legacy systems needing change; watch Budget 2026 closely for milestones and technical requirements; engage with the workshops directly or via industry bodies; and begin researching e-invoicing solution providers. Early preparation avoids a “compressed timeframe” for transformation once detailed 2026 specifications are published. [marosavat.com], [ecitdigital.com]
Sources
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