Government Crackdown on Late Payments: What UK SMEs Need to Know & How to Protect Your Cash Flow

For years, the culture of late payments has been a silent drain on the UK’s small and medium-sized enterprises (SMEs). It’s a persistent problem that stifles growth, creates immense stress for business owners, and jeopardises the financial health of otherwise viable companies. In response, the government has introduced a significant package of reforms, strengthening the existing late payment legislation UK to finally tip the scales in favour of small businesses. This crackdown isn’t just about minor tweaks; it represents a fundamental shift aimed at ending the UK’s poor payment culture for good. For SME owners, finance directors, and sole traders, understanding these changes is not just a matter of compliance—it’s a critical opportunity to reclaim control over your cash flow.

The End of ‘Business as Usual’: Understanding the New Landscape

The frustrating reality for many SMEs has been that existing protections, while well-intentioned, often lacked the teeth to force change. The Late Payment of Commercial Debts (Interest) Act 1998 has long given businesses the right to claim interest and compensation, but many have been hesitant to do so for fear of damaging client relationships.

The government’s new package of reforms, detailed in their “Prompt Payment & Cash Flow Review” response, aims to change this dynamic. The changes, which have been rolling out over the past year, build upon the existing framework to create a much more robust system of enforcement and transparency.

A Stronger Referee: The Small Business Commissioner’s New Powers

One of the most significant changes already in effect is the enhancement of the Small Business Commissioner’s (SBC) role. Previously seen as a mediator, the SBC now has expanded powers to directly tackle poor payment practices.

Since these powers were granted, the SBC can:

• Order Binding Payment Plans: When a complaint is upheld, the SBC can now impose a binding payment plan on the late-paying company. This moves the process from simple recommendation to direct enforcement, giving SMEs a much faster and lower-cost route to getting paid than going through the courts.
• Launch Investigations: The Commissioner can now proactively investigate companies suspected of systemically poor payment practices, based on information from sources like the payment performance reporting data.
• Wider Remit: The SBC’s authority has been broadened to cover a larger and more complex range of payment-related disputes, providing a powerful ally for businesses struggling with complex supply chains.

This means that for any invoice issued today, you have a far more powerful and effective adjudicator to turn to if things go wrong.

Increased Transparency: Broadening Payment Reporting Rules

Since 2017, the UK’s largest businesses have been required to report on their payment practices and performance twice a year. This data, published on the GOV.UK website, has shed light on which companies are the worst offenders.

The recent reforms have strengthened this regime by:

• Requiring More Detail: Reporting now must include information on disputed invoices and the total value of payments that were not paid on time, providing a clearer picture of a company’s payment culture.
• Extending the Regulations: The government has committed to keeping these regulations in place and is actively reviewing the thresholds, meaning more medium-sized companies may soon fall under their scope.

For an SME, this public data is a powerful due diligence tool. Before entering a contract with a new large customer, you can—and should—check their payment performance report. It provides a clear indicator of how quickly you can expect to be paid.

The Practical Toolkit: How SMEs Can Enforce Their Rights

Understanding the legislation is one thing; using it to get your invoices paid on time is another. Here’s a step-by-step guide to protecting your business.

1. Your Right to Interest and Compensation

This is your most fundamental right under the late payment legislation UK. For any business-to-business transaction, if an invoice is not paid on time, you are legally entitled to charge:

• Statutory Interest: This is 8% plus the Bank of England base rate. This rate is intentionally high to act as a significant deterrent. You can calculate the annual rate and then apply it on a daily basis for the period the debt is overdue.
• Fixed Compensation: You can also claim a one-off compensation payment for the cost of recovering the debt. The amount depends on the size of the unpaid invoice.

The table below breaks down the compensation you are legally entitled to claim, in addition to statutory interest.

Crucially, you do not need to have these terms written into your contract to claim them. They are your statutory right. Simply sending a revised invoice that includes these charges is often enough to prompt immediate payment from a delinquent client.

2. Building a Bulletproof Credit Control Process

The best way to deal with late payments is to prevent them from happening in the first place. A systematic and professional credit control process is non-negotiable.

Your process should look something like this:

1. Clear Terms Upfront: Your contract and terms of business must clearly state your payment terms (e.g., “Payment due within 30 days of invoice date”).
2. Accurate Invoicing: Ensure your invoices are sent promptly and contain all necessary information (PO number, correct contact person, clear breakdown of services/goods). Any error gives the client an excuse to delay.
3. Automated Reminders: Use your accounting software (like Xero or QuickBooks) to send automated, polite reminders a few days before the due date and on the day it becomes overdue.
4. Prompt Follow-Up: The moment an invoice is one day late, your process should kick in. A phone call is often more effective than an email. Be polite but firm.
5. Formal Escalation: If payment is still not received after 7-14 days, send a more formal “Letter Before Action.” This letter should state your intention to add statutory interest and compensation, and mention that you will refer the matter to the Small Business Commissioner or begin court proceedings if the debt is not settled.

3. The Proposed 60-Day Payment Cap

A key part of the government’s forward-looking agenda is a proposal to cap standard payment terms at 60 days, with a potential further reduction to 30 days. While this is not yet law as of March 2026, it signals the clear direction of travel. Businesses that currently rely on or accept long payment terms (e.g., 90 or 120 days) must begin preparing for this change now.

What you should do to prepare:

• Review Existing Contracts: Identify any clients with terms longer than 60 days.
• Begin Renegotiations: Start conversations with these clients now about moving to shorter terms, explaining that you are aligning your business with upcoming legislative standards.
• Update Your Standard T&Cs: Ensure your standard terms for all new clients are 30 days to future-proof your cash flow.

Waiting for this to become law will put you on the back foot. Proactive businesses are already making this shift, improving their cash flow and reducing their risk exposure.

Beyond Chasing: A Strategic Approach to Cash Flow

While the new legislation provides a stronger stick, the ultimate goal is to create a financial environment where you don’t need to use it. This requires a strategic, forward-looking approach to your finances.

Cash Flow Forecasting is Non-Negotiable

A robust cash flow forecast is your early warning system. It allows you to see potential shortfalls weeks or months in advance, giving you time to act. A good forecast should:

• Model different payment scenarios (e.g., what happens if your biggest client pays 30 days late?).
• Factor in your own payment obligations (VAT, Corporation Tax, payroll).
• Help you make informed decisions about when to invest, when to hire, and when to secure short-term financing.

Consider Your Funding Options

Even with the best processes, a single large, late payment can cause a crisis. It’s wise to have funding options in place before you need them.

• Invoice Financing: This allows you to borrow against the value of your unpaid invoices, giving you access to cash almost immediately. It can be a vital lifeline for businesses with long payment cycles.
• Revolving Credit Facility: A flexible line of credit from a bank can provide a buffer to cover short-term cash flow gaps.

Having these facilities agreed upon in advance means you can draw on them instantly when needed, rather than scrambling for funds during a crisis. The original legislation, The Late Payment of Commercial Debts (Interest) Act 1998, was designed to prevent the need for this, but strategic planning remains essential.

The Power of the Prompt Payment Code

Alongside the legal framework, SMEs should be aware of the Prompt Payment Code (PPC). This is a voluntary code of practice for businesses, administered by the Small Business Commissioner. Signatories pledge to pay 95% of all their invoices within 60 days (and 95% of SME invoices within 30 days).

Checking if a potential customer is a PPC signatory is another valuable due diligence step. If a signatory fails to meet the code’s standards, they can be suspended or removed, creating significant reputational damage. Encouraging your clients to become signatories can help embed a culture of prompt payment throughout your supply chain.

The government’s crackdown is a welcome and long-overdue development. It provides SMEs with the leverage they need to demand fair treatment. By combining a deep understanding of the new late payment legislation UK with robust internal processes and strategic financial planning, you can finally turn the tide on late payments and build a more resilient, cash-healthy business.