Late Payment Crackdown: What’s Changed Since Our 2025 Update?

Back in August 2025, we looked at how the UK Government was starting to take late payments more seriously and what that could mean for businesses. Since then, things have moved on significantly.

New measures are now being introduced that give real enforcement powers, tighter rules on payment terms and clearer consequences for businesses that do not pay on time.

So, what has changed and what does it mean for you?

Stronger Powers for the Small Business Commissioner

One of the biggest developments is the expanded role of the Office of the Small Business Commissioner.

Previously, the Commissioner’s main tool was to highlight poor payment practices. Now, that role is being strengthened considerably.

The Commissioner will be able to:

• Investigate large businesses

• Carry out spot checks on payment performance

• Issue fines to businesses that persistently pay suppliers late

  
  

This marks a clear shift from guidance to enforcement. Late payment is no longer just bad practice. It is becoming a compliance issue.

A 60-Day Cap on Payment Terms

Another important change is the introduction of a cap on payment terms.

Large businesses will be required to pay small suppliers within 60 days. Longer terms will no longer be acceptable. This is a significant step forward for SMEs, many of whom have historically had to accept extended terms simply to secure work.

Over time, there are indications that this cap could be reduced further. The result should be more predictable cash flow and less pressure on smaller businesses.

Mandatory Interest on Late Payments

There is also a move towards making interest on late payments automatic.

Statutory interest, currently set at 8% above the Bank of England base rate, will apply without the need for suppliers to request it.

In practice, this means:

• Businesses cannot avoid interest through contract terms

• Suppliers do not need to chase or negotiate

• Late payment will carry a clear financial cost

  
  

This removes a long-standing barrier where smaller businesses were reluctant to enforce interest for fear of damaging relationships.

Faster Dispute Timelines

To prevent unnecessary delays, new rules will require businesses to raise invoice disputes within a defined timeframe.

If a dispute is not raised within 30 days, the invoice will effectively be treated as accepted.

This should reduce the use of late-stage disputes as a reason for delaying payment.

Greater Transparency and Accountability

Large businesses will also face increased scrutiny.

There will be:

• More detailed reporting on payment practices

• Greater accountability at board level

• Increased visibility of poor payment behaviour

  
  

Late payment is now as much a reputational issue as it is an operational one.

Why This Matters

These changes are designed to create a fairer environment for small businesses, improve cash flow and reduce the time spent chasing payments.

However, they also place greater responsibility on finance teams. It is no longer enough to have informal processes or manual workarounds. You need to be confident that payments are made accurately and on time. Failure to do so could result in fines, strained supplier relationships and increased regulatory attention.

How 4GL Concepts and iplicit Can Help

At 4GL Concepts, we provide and implement iplicit, a powerful cloud accounting solution designed to give you greater control over your financial processes.

This is where the right finance system makes a difference. With iplicit, you gain greater control over your payment processes and significantly reduce the risk of late payments and non-compliance.

iplicit helps you to:

Automate payment workflows - Schedule and manage supplier payments in line with agreed terms, reducing reliance on manual processes and minimising the risk of human error.

Access real-time visibility - Gain a clear, up-to-date view of what is due and when, with full oversight of outstanding invoices and liabilities.

Reduce the risk of missed payments - Automated alerts and approval workflows help ensure key deadlines are not overlooked.

Support compliance - Maintain accurate audit trails and ensure your processes align with evolving regulations and reporting requirements.

By automating these key processes, you move from reacting to late payments to preventing them altogether. This helps protect cash flow, strengthen supplier relationships and keep you ahead of regulatory change.

Looking Back at Our 2025 Blog

In our original blog, we highlighted that businesses should start preparing for tighter rules around payment practices.

That advice still stands, but the urgency has increased. The direction of travel is clear. Late payment is no longer being tolerated and enforcement is catching up quickly.

Final Thoughts

The latest changes send a strong message. Paying suppliers late is no longer just inefficient. It is becoming unacceptable from both a regulatory and commercial perspective.

Businesses that invest in stronger processes and systems now will be in a much better position as these rules take full effect.

If you would like to understand how automation through iplicit can help your organisation stay compliant and improve cash flow, get in touch with our team.