MTD code red: Catching up if your practice is behind

As an accountant or bookkeeper, Tax Digitization (MTD) for Income Tax represents something important: a change in the way your work is organized, priced, and delivered throughout the year.

Interviews with employees over the past year—at events run by ICAEW, ICB, and others—suggest that many firms have spent some time preparing for MTD. So far, so good.

Now the Income Tax MTD is live, the picture is not balanced.

Maybe you still use the rules. Maybe you have selected the software and started testing. Or maybe you’re still rethinking how your practice really works.

But one thing is certain: if any of this applies to you, effectively, your practice should be in crisis mode. We have moved from the education phase to the operational phase.

In this article we look at ways to deal with this crisis, but you can also use the article to check your MTD readiness against the curve.

Here’s what we discuss:

MTD readiness model

The first quarterly review deadline is August 7. While work right now should be focused on ensuring that digital recordkeeping processes are in place, this deadline means that the window for preparation is not closed—but requires urgent, immediate attention.

Thinking of readiness as a continuum, rather than a single moment of being ready, can help determine where your resilience stands and what needs to happen before that day.

Most firms go through the motions—from understanding the rules, to putting the right technology in place, to adapting to how the practice works day-to-day.

The four categories below provide a way to assess where your company currently sits. Most practices will find that they sit somewhere between the categories, but the model highlights areas that may need attention.

Phase 1: Awareness

Initially, the key is to understand the basics of MTD for Income Tax—following HMRC’s updates and timelines, learning how digital records will work, identifying which clients will be affected, and starting internal discussions about preparation.

Some firms are still there, and that’s more understandable than it might seem—details on the final rules came in at the end of March, leaving little time to get the full picture before the first day.

Following HMRC guidance is not a one-off task. Expect the image to continue to grow.

But the timelines have been concrete for some time: for customers above the limit of £50,000, the first quarterly deadline falls on 7 August 2026. For those brought to the agreement from April 2027, the equivalent date is 7 August 2027. Many processes will have customers in both groups, which means managing two waiting deadlines at the same time.

But awareness is only knowledge. At this stage, it is impossible to consider the profound changes MTD’s Income Tax will make to the way you work with clients, or the way you price what works.

Phase 2: Technical preparation

The next phase focuses on technology: choosing accounting software compatible with MTD, testing integration with digital record systems, testing tools that support quarterly submissions, and testing digital bookkeeping workflows with clients.

For most companies, this phase feels like a logical progression. Choosing the right software and building a technical foundation is an important task. But as several doctors pointed out at recent ICAEW and ICB events, technical decisions are often the easy part of the transition. Difficult challenges arise when you start to adjust your processes and customer relations.

For firms still in this phase now that the MTD is live, the key is not due diligence—reaching operational readiness before August 7th and ensuring that record keeping rules are applied—both for the practice, and for its clients.

Stage 3: Functional change

This is where MTD for Income Tax begins to reshape the way your company works—not just what tools you use, but how the practice works between posts.

Instead of focusing on software, you are now faced with the reality of working on a continuous compliance model: designing quarterly reporting workflows, setting expectations for when and how clients provide records, onboarding clients to digital bookkeeping tools, and defining where the firm’s responsibility ends and the client’s begins.

This is also where many conflicts arise, according to doctors. The challenge is not often to understand the law. It comes down to practical questions: How often will customers provide information? How will internal workflows change? How will teams handle the growing rhythm of reporting throughout the year?

In other words, the focus shifts from technical soundness to operational soundness. And that change is where economics starts to change.

There is another dimension to this that is easy to miss. The more a company interacts with clients, the greater the opportunity to expand the role of the practitioner beyond accounting.

Quarterly touch points create opportunities for customers to ask about business decisions, technical issues, and personal financial concerns that have nothing to do with engagement.

Most workers automatically take on this task because no one else can do it. But it’s rarely researched, rarely priced, and can quietly eat up the volume a digital MTD fix should free up.

Section 4: Continuing liability

The last stage represents something bigger than just working out. It’s a structural change in the way your company carries—and is compensated—for continuous liability.

Under the traditional annual compliance model, the rhythm was normal: prepare clients, submit records, review and file, move on. The job was for a year and the price was right. The MTD quarterly review requirement changes that equation. You are now responsible for client records on an ongoing basis—whether you own them or not.

This creates what you can call a visibility gap. Clients see quarterly shipments. They don’t see the constant monitoring, record chasing, and quality assurance that is behind them. Firms are taking over that work, and unless the terms of engagement and pricing reflect it, the result is margin erosion—so gradual that it’s not noticeable until it’s built into the way you work.

Similar is the SaaS revolution that has reshaped the software industry over the past 15-20 years. Annual licenses are open to recurring revenue, and businesses have changed their pricing and delivery models to survive. Those that didn’t fell behind and ended up structurally unprofitable.

Firms that recognize this change will rebuild around pricing, storage models, clear responsibility categories, and regular review cycles that align with client behavior. Firms that do not will continue to do the work while slightly losing margins.

Some practices are already working this way—especially those that have embraced digital bookkeeping and traditional customer interactions. They are a work in progress. They haven’t named it yet or its price. This section gives that reality an outline.

Where is your company today?

Towards the first day of April, some firms are caught in the middle of technical adjustments and operational changes. The MTD’s liveness doesn’t automatically close that gap—many processes are still working through the implications of using the ongoing model, and the August 7th quarterly deadline provides a real forcing exercise.

Emerging questions reveal: how to get clients to maintain digital records consistently, how to manage quarterly workflows internally without existing large capacity, how to balance new workloads against current compliance obligations, and—increasingly—how prices are delivered consistently throughout the year.

In most cases, technology is good. The work and business model is where the work lives.

How can your company move forward?

The Income Tax MTD is live, so if you think you’re behind, it’s important to close the gap quickly—and the right way.

• Pricing and inclusion terms come first. If your company has not updated its marketing terms to reflect ongoing responsibility, this is a very urgent conversation. Each passing week and quarter of work done under the annual amount is a limit that will never be reached. Some firms are already moving to retention-style pricing and behavior-linked review clauses. Waiters will find it difficult to have a conversation when the work is done for free.
• Set expectations with customers now. Establishing a rhythm of how and when clients provide records can’t wait for the next engagement review. For existing customers, that conversation needs to happen quickly. For those entering the scope in 2027, you still have time to establish the right pattern before the obligation arrives.
• Differentiate clients by readiness and urgency. Some clients already use digital systems and will transition smoothly. Others will need significant support. As the August 7 deadline approaches, trying to move everyone at once is a road to trouble. Prioritize clients above the £50,000 threshold first, and use what you learn to prepare the second batch.
• Use the first quarter’s transmission as a measurement function. The low-cost testing window is closed, but the first round of quarterly live updates will reveal process gaps before they are embedded. Consider it a structured learning activity.

Final thoughts: Making a real difference

Navigating MTD smoothly may not be about having the latest and greatest software. It will be more about seeing how the Income Tax MTD changes the economic relationship between the employer and the client.

Annual compliance was annual and limited. Quarterly reporting continues. And continuous work, delivered without constant price, is a business model problem—not a technology problem. You may understand the rules behind MTD of Income Tax. The tough question is whether your company is ready for what those rules do to the way you work—and how you get paid.