Introduction

For many medico-legal expert witnesses, the focus is naturally on delivering high-quality reports, meeting court deadlines, and maintaining professional standards. However, behind every successful medico-legal practice sits a structured administrative framework that ensures the business side of the work runs smoothly.

One of the most important and sometimes overlooked elements of this framework is the management of payment terms and invoicing when working with instructing solicitors and medical reporting agencies.

Without clearly agreed Terms of Business, confirmed fees, and a consistent process for managing invoices, expert witnesses can find themselves spending valuable time chasing outstanding payments or, in some cases, facing debts that may never be recovered.

Establishing clear contractual terms, ensuring fees are agreed for every case, and actively managing invoice follow-up are essential steps in protecting both the financial stability and long-term sustainability of a medico-legal practice.

Clear Terms of Business: The Foundation of a Well-Run Medico-Legal Practice

Every medico-legal instruction should begin with properly drafted Terms of Business (ToB). These documents are not simply a formality; they provide the contractual framework that protects both you and the instructing party.

Well-structured Terms of Business ensure there is no ambiguity around fees, payment timelines, or what happens if invoices are not settled on time.

1. Clear Fee Structure

Your Terms of Business should outline your fees for report writing, consultations, conferences with counsel, court attendance, and any additional work, such as supplementary reports. The fee for each specific instruction should be agreed upon before work begins. This prevents misunderstandings later in the process.

2. Defined Payment Terms

Payment terms must clearly state when invoices are due. Many medico-legal experts operate on 30-day payment terms, but the key point is that the timeframe is clearly stated and acknowledged by the instructing solicitor or agency. Without defined payment terms, invoices can easily fall into administrative limbo.

3. Signed Agreement From the Instructing Party

One of the most important and sometimes overlooked steps is ensuring that the Terms of Business and the agreed fees are signed or formally accepted by the instructing party for each case. This confirmation provides contractual clarity and ensures that both parties understand the expectations before work begins. It also significantly strengthens your position should any dispute over fees arise later.

4. A Clear Escalation Path for Late Payment

Your Terms of Business should clearly outline what happens if an invoice becomes overdue.

A professional escalation structure might include:

• Initial reminder shortly after the due date

• Follow-up reminders if payment remains outstanding

• Application of interest on overdue invoices

• Further escalation if payment is still not received, which may ultimately lead to legal recovery action

By clearly stating these steps in advance, payment enforcement becomes a professional process rather than an uncomfortable conversation.

The Importance of Managing Invoices Properly

Having strong Terms of Business is only part of the solution. The other critical element is consistent invoice management.

Many expert witnesses send invoices and then move on to the next report or case, assuming payment will arrive in due course. Unfortunately, without a structured follow-up process, invoices can easily slip through the cracks.

Effective invoice management typically includes:

• Issuing invoices promptly once work is completed

• Monitoring payment deadlines carefully

• Sending timely reminders when invoices approach or pass their due date

• Maintaining clear records of invoices, communications, and agreements

When this process is handled consistently, most payment issues can be resolved quickly and professionally.

The Real Risk of Outstanding Debts

Leaving invoices unpaid for long periods carries real financial risk.

If a firm encounters financial difficulty, outstanding invoices may become extremely difficult to recover.

A recent example within the legal sector highlights this risk. The PM Law Limited group is currently under investigation by the Solicitors Regulation Authority (SRA) following its sudden collapse in February 2026. Situations like this can leave expert witnesses and other service providers with unpaid invoices and very limited options for recovery.

Events like these are outside the control of individual experts. However, maintaining clear contractual terms, agreed-upon fees, and proactive invoice management can significantly reduce the level of financial exposure.

Allowing debts to accumulate unchecked increases the likelihood that some will eventually become unrecoverable.

Common Payment Mistakes Medico-Legal Expert Witnesses Make

Even experienced expert witnesses sometimes fall into patterns that increase the risk of late or unpaid invoices. Common mistakes include:

1. Not agreeing fees per case – Assuming standard rates apply can lead to disputes or confusion with solicitors or agencies.

2. Starting work without signed Terms of Business – Without confirmation, enforcing payment terms is much harder.

3. Delaying invoicing – Waiting until the end of a month or multiple reports have been completed can create delays in cash flow.

4. Chasing payments inconsistently – Infrequent or irregular follow-ups reduce the likelihood of prompt payment.

5. Neglecting escalation options – Not applying interest or having a clear procedure for overdue invoices can weaken your position if debts grow.

Addressing these mistakes proactively is essential to protect both revenue and professional reputation.

Why Structured Administrative Support Matters

For many medico-legal experts, the biggest challenge is not understanding the importance of payment terms — it is having the time and systems to manage them properly.

Between clinical commitments, report writing, case preparation, and court attendance, administrative tasks such as monitoring invoices and following up on payments can easily fall down the priority list.

However, when payment processes are handled consistently and professionally, the difference is significant:

• Cash flow becomes predictable and reliable

• Payment delays are identified and addressed earlier

• Outstanding debts are reduced

• Relationships with solicitors and agencies remain professional and well-managed

Having structured, expert support ensures that nothing falls through the cracks while maintaining professionalism in all communications.

Protecting the Financial Health of Your Practice

A successful medico-legal practice relies on more than clinical expertise. It requires clear agreements, consistent administrative processes, and proactive financial management.

Ensuring that each case begins with signed Terms of Business and agreed fees, and that invoices are actively monitored and followed up, provides an essential layer of protection for your income.

When these systems are in place, expert witnesses can focus on their professional work with confidence, knowing that the business side of their practice is being managed with the same level of care and attention.

Closing: Why Having a Specialist PA Makes a Difference

Managing invoices, chasing payments, and enforcing Terms of Business is not just “admin work.” It is protecting your income, reputation, and the sustainability of your practice.

Having a specialist medico-legal PA who understands the nuances of working with solicitors and medical reporting agencies can transform the way your practice operates. With the right support in place:

• Each case is confirmed with clear, signed Terms of Business

• Fees are agreed and monitored from day one

• Invoice follow-ups are handled efficiently, including interest application where appropriate

• Potential disputes or late payments are managed professionally, reducing stress and safeguarding cash flow

With structured support, you can focus entirely on your clinical and medico-legal work, confident that your financial and administrative processes are being managed to the highest standard. That combination of expertise and oversight ensures your practice remains both professionally respected and financially secure.