The way businesses create and process invoices is set to change significantly over the next few years, as HM Revenue & Customs (HMRC) moves towards mandatory e-invoicing for VAT invoices from 2029.

Although the rules are still being developed, businesses are being encouraged to start preparing early.

What Is E-Invoicing?

E-invoicing refers to invoices that are sent and received in a structured digital format that allows them to be processed automatically by accounting systems.

Unlike traditional PDF invoices sent via email, true e-invoices are designed to integrate directly with bookkeeping and finance software, helping to streamline administration and reduce manual data entry.

Why Is HMRC Introducing It?

The government believes e-invoicing could help businesses:

  • improve bookkeeping accuracy,
  • reduce administrative errors,
  • speed up payment processing,
  • improve efficiency, and
  • support more accurate tax reporting.

The long-term aim is to modernise financial reporting and reduce mistakes within VAT returns and wider tax submissions.

What Businesses Are Saying

HMRC recently released research exploring how small and medium-sized businesses currently view e-invoicing.

The findings showed:

  • 59% of businesses are familiar with e-invoicing,
  • only 29% currently use it in some form, and
  • just 10% both send and receive structured e-invoices.

The research also highlighted that many SMEs still rely heavily on:

  • PDF invoices sent by email, and
  • traditional paper invoicing methods.

There’s Still Time to Prepare

Although mandatory implementation is not expected until 2029, businesses that prepare early may benefit from a smoother transition later.

Reviewing systems now can help businesses understand:

  • whether their accounting software is compatible,
  • what upgrades may be required,
  • how automation could improve efficiency, and
  • what changes may be needed internally.

For many businesses, moving towards digital invoicing could also create wider opportunities to improve financial processes and reporting accuracy.

Planning Ahead

As with many tax and compliance changes, early preparation often makes implementation far less disruptive.

At Harris Lacey and Swain, we help businesses review accounting systems, improve financial processes, and prepare for upcoming regulatory changes with confidence.

If you would like to explore whether your current systems are ready for e-invoicing, our team would be happy to help.