Making Tax Digital Has Doubled the Workload. But Who Is Doing the Extra Work?

Making Tax Digital for Income Tax has been discussed, debated, delayed, and anticipated for the better part of a decade. As of 6 April 2026, it is no longer a future concern for UK accounting practices managing affected clients. It is an operational reality.

The conversation in the run-up to the launch was dominated by one question: are clients ready? And with good reason. HMRC estimates that approximately 860,000 sole traders and landlords have been brought into the first phase of MTD for Income Tax, all of whom need to maintain digital records and submit quarterly updates to HMRC, many for the first time. Helping clients navigate that transition has been the primary focus of most practice preparation.

But there is a second question that has received considerably less attention, and that is the one that will determine how well accounting practices actually perform under MTD over the next three years. That question is not about client readiness. It is about practice readiness: whether the operating model behind the compliance delivery has been redesigned to absorb a workload that has not simply grown, but changed in structure and frequency in a way that a traditional annual compliance model was not built to handle.

This blog addresses that question directly. Making Tax Digital accounting practice workload is not an abstract challenge. It is a concrete, compounding operational reality that is already arriving in the Q1 submission deadlines of 2026, and that will intensify further as the £30,000 threshold cohort joins in April 2027.

What MTD for Income Tax Actually Changes

For clients, the headline change is well understood: the annual Self Assessment return has been replaced, for those above the income threshold, by a continuous compliance model. Digital records must be maintained throughout the year. Quarterly summaries of income and expenses must be submitted to HMRC at the end of each quarter. A final declaration, incorporating tax and accounting adjustments, is due by 31 January following the end of the tax year.

The quarterly submission deadlines for the 2026/27 tax year fall on 7 August 2026, 7 November 2026, 7 February 2027, and 7 May 2027, with the final declaration due by 31 January 2028. These deadlines are uniform, irrespective of a client’s accounting year end, and they apply to every trade and property business separately where a client has more than one income source.

For accounting practices, the change is more fundamental than a new filing schedule. It is a structural shift in how compliance work is organised, resourced, and delivered. The annual compliance model, built around distinct phases of activity, a relatively concentrated period of data collection and processing, and a predictable January deadline, does not map onto a quarterly compliance regime. What MTD creates is a continuous throughput of data collection, review, and submission work with no extended quiet periods and no opportunity to batch the effort into a single annual push.

That is not a minor operational adjustment. It is a redesign of how practice capacity is allocated across the year.

The Maths That Should Be Focusing Every Practice Leader’s Attention

The scale of the workload change becomes clearest when it is expressed numerically.

Under the traditional Self Assessment model, each affected client required one annual interaction for compliance purposes: data collection, preparation, review, and submission. One filing, one deadline, one annual compliance cycle per client.

Under MTD, that same client now requires four quarterly submissions plus a final declaration, a minimum of five distinct compliance touchpoints per year, each requiring its own data collection, reconciliation, review, and submission process. For practices where the quarterly update also becomes the primary client touchpoint, the communication and relationship management work multiplies in parallel.

For a practice managing 200 clients in the MTD cohort, the arithmetic is stark. That practice is no longer managing 200 annual compliance interactions. It is managing a minimum of 1,000 digital touchpoints per year, plus the ongoing client communication, data chasing, software support, and reconciliation work that sits around each submission. The compliance workload per client has not doubled. It has multiplied by a factor of five, at minimum, when the full cycle of quarterly plus year-end activity is accounted for.

This is not a niche or edge-case concern for large practices. ICAEW’s Rebecca Bennyworth, a chartered accountant and leading authority on MTD, put it plainly: around 900,000 taxpayers are coming into MTD income tax in the first phase, 60% of whom have an accountant. That is a significant proportion of the total client base of UK accounting practices being subject to this change simultaneously.

The Double Workload Problem

A further operational complication compounds the straightforward workload increase: the overlap of MTD quarterly submissions with the continuing cycle of Self Assessment returns for clients not yet in scope.

The phased MTD rollout, bringing the £30,000 to £50,000 income cohort into scope in April 2027 and the sub-£30,000 group in April 2028, means that accounting practices in 2026 and 2027 are simultaneously managing two distinct compliance models. Clients in the first MTD phase require quarterly submissions under the new regime. Clients in the second and third phases still require annual Self Assessment returns under the old one. Both sets of obligations coexist, with deadlines from each regime running concurrently throughout the year.

AccountingWEB has described this as a “double workload” for firms during the initial rollout phases, and it is an accurate characterisation. The January 2027 period, for example, will require practices to manage both the final declaration for the first MTD cohort and the Self Assessment filing deadline for non-MTD clients simultaneously, in addition to the Q3 quarterly update deadline on 7 February 2027.

For practices that have not restructured their workflow and capacity model ahead of this, the compression of multiple deadline types into the same calendar windows will be felt acutely. For those that have, the workload is manageable and the quarterly touchpoints represent a genuine client relationship opportunity. The difference between those two outcomes is almost entirely a function of how the practice has prepared its operating model.

The Client Readiness Gap: Who Is Actually Ready?

The dominant assumption in much of the MTD preparation conversation has been that by the time the April 2026 mandate arrived, the majority of affected clients would be in a position to manage their own digital records with limited ongoing support from their accountant. The data suggests this assumption is significantly optimistic.

Research published by Wolters Kluwer in April 2026 found that 59% of accountants report that at least half of their income tax clients are still not using digital tools as MTD goes live. Client resistance or a preference for paper-based processes is cited by 47% of accountants as a primary barrier to the transition. A lack of digital skills among clients is a further obstacle, highlighted by 39% of respondents.

Separately, research by Zoho Corporation found that 69% of businesses surveyed expect their accountants to handle all aspects of MTD for income tax on their behalf. Not to be guided through it, or supported in doing it themselves. To have it handled for them.

This is a significant finding. It means that for a substantial proportion of affected clients, the quarterly compliance burden is not being transferred to the client. It is being absorbed by the accountant. The data collection, the software management, the digital record maintenance, and the submission preparation are all landing on the practice, even where the theoretical expectation was that clients would take primary responsibility.

The Wolters Kluwer research found that 47% of accountants identify data quality and reconciliation as the most significant operational challenge of MTD, and 44% highlight the difficulty of getting clients onto new systems and managing the digital transition. These are not transitional one-off costs. They are recurring operational obligations that accompany every quarterly submission cycle.

What the Quarterly Rhythm Does to a Practice Built Around Annual Compliance

The most important operational implication of MTD for established accounting practices is the structural incompatibility between the quarterly compliance rhythm it requires and the annual compliance model most UK practices have been built around.

A practice built for annual compliance has a recognisable operational structure. Client data collection happens at a predictable point in the year. Processing and review follow. Submission happens to a known deadline. Senior professionals focus on the January peak and use the quieter months for advisory work and practice development. The rhythm, while pressured at peak periods, is broadly predictable and manageable within a model built around annual capacity planning.

MTD breaks that rhythm. As IRIS has noted in its practice strategy guidance, quarterly submissions create a constant throughput of data collection, review, and submission work with no extended quiet periods. Client data that was acceptable when reviewed once a year, including incomplete expense categories, missing receipts, and bank feeds not reconciled for months, becomes a recurring problem that surfaces four times per year rather than once. The correction cost, in time and practice capacity, multiplies accordingly.

The result for practices that have not redesigned their operating model is a continuous low-level pressure on compliance capacity that has no natural release valve. There is no quiet January equivalent in a quarterly model. The work arrives continuously, and each deadline connects directly to the next.

Where the Extra Work Actually Lands

The question of who is doing the extra work that MTD creates is not a rhetorical one. It has a specific answer that most practice leaders can already identify, even if they have not formally quantified it.

In practices that have not restructured their compliance delivery model, the extra work is landing on the same people who were already at or near capacity under the annual model: experienced compliance staff, senior accountants who should be focused on advisory work, and practice managers absorbing the coordination and client communication overhead that quarterly submission cycles create.

This is precisely the pattern that drives the quality and capacity problems described throughout this blog. When compliance workload increases and the people absorbing it are senior professionals with advisory capability and client relationship responsibility, the advisory capacity of the practice contracts. The work that MTD was always intended to enable, more frequent client engagement, proactive financial insight, and a shift from retrospective compliance to forward-looking advisory, does not materialise because the people best placed to deliver it are occupied with data chasing, reconciliation queries, and submission management.

The extra work has to go somewhere. Where it goes, in the absence of a deliberate operating model decision, is into the existing team, carried by the most conscientious people in the practice, at the expense of the higher-value work they should be doing.

Why the Advisory Opportunity Depends on Solving the Operational Problem First

The genuine opportunity that MTD creates for accounting practices has been well articulated: quarterly client touchpoints, more frequent engagement with financial data, and the potential to shift from annual compliance to year-round advisory relationships that clients are more likely to value and pay for.

69% of accountants surveyed by Wolters Kluwer view MTD as positive for their business. The majority see improved bookkeeping efficiency, more straightforward financial forecasting, and the potential for bundled compliance and advisory service packages as real commercial opportunities.

But this opportunity is conditional. It depends on the quarterly compliance process running efficiently and without absorbing the senior capacity that advisory conversations require. A quarterly touchpoint that is consumed by chasing missing receipts and reconciling data errors is not an advisory conversation. It is a compliance administration call, and it generates neither the client insight nor the relationship quality that the MTD advisory opportunity is built on.

The practices that will realise the advisory upside of MTD are those that have separated the compliance administration function from the advisory function, ensured the former is handled efficiently and at the right cost, and freed their senior professionals to use the increased client contact frequency for the higher-value conversations it can enable.

The practices that will absorb only the cost and workload of MTD, without the advisory upside, are those where the compliance administration and the advisory work remain undifferentiated, carried by the same people, with no structural separation of what each requires.

The Capacity Question

UK accounting practices face an additional structural challenge that makes the MTD workload question more acute than it might otherwise be: the sector’s persistent talent shortage.

The UK accounting profession has been reporting recruitment and retention difficulties for several years. The combination of a smaller pipeline of qualified graduates entering the profession, increased competition from adjacent industries for financially literate talent, and the rising cost of employment under the Employment Rights Act 2025 means that practices cannot simply hire their way through the MTD transition.

For practices managing a significant number of MTD-phase-one clients, the workload increase is arriving at a point when internal capacity is already constrained. The options available are limited: absorb the extra work into the existing team, which carries the quality and burnout risk explored throughout this blog; recruit at a cost and with timelines that many practices cannot sustain; invest in technology and automation to reduce the per-client processing time; or restructure the delivery model by bringing in structured external support for the compliance administration work.

In practice, the most effective responses will combine elements of technology investment and structured external support, releasing the practice’s existing team to focus on the client relationship and advisory work that MTD genuinely enables, while the compliance processing work is handled by a model built to absorb volume efficiently.

Where Structured Operational Support Changes the Picture

For accounting practices managing significant MTD compliance workloads, the most direct route to separating the advisory opportunity from the compliance administration burden is through structured operational support designed specifically for the compliance processing function.

Business process outsourcing, applied to the data collection, record management, reconciliation, and submission preparation work that MTD creates at scale, does not reduce the quality or the professional oversight of the compliance process. It relocates the processing work to a model with the right capacity, the right rhythm for quarterly delivery, and the right cost structure for work that does not require the direct involvement of a senior UK-qualified accountant.

The outcome for the practice is straightforward. The quarterly submission cycle runs to deadline, with consistent standards across the client portfolio, without consuming the capacity of the senior professionals whose time is most valuable when focused on the client relationship. The advisory conversations that MTD’s increased touchpoint frequency makes possible become genuinely possible, because the people best placed to have them are not occupied with reconciliation queries and data chasing.

For practices managing second and third MTD cohort preparation simultaneously, the scalability of that model matters additionally. The clients joining in April 2027 are already on the horizon. The practices building their MTD operational infrastructure now, including the external support capacity to absorb the next wave of onboarding, are the ones that will manage the full rollout without the capacity compression that those who delay will experience.

At Alpha BPO, we support accounting practices with the compliance administration, data management, and back-office capacity that MTD for Income Tax has created. If the quarterly workload is already placing pressure on your team, or if you are planning for the 2027 cohort, we would welcome the conversation.

Conclusion

Making Tax Digital for Income Tax is now live. The first quarterly submission deadline falls on 7 August 2026, and the compliance cycle that runs from that point is continuous, compounding, and structurally different from the annual model most UK accounting practices were built to deliver.

The conversation about client readiness was necessary and important. But it was always the easier of the two readiness questions. The harder one, whether practice operating models have been redesigned to absorb a workload that has multiplied by a factor of five per MTD client, with a quarterly rhythm that admits no quiet periods and a client expectation that the accountant will manage most of the complexity, is the one that will determine how practices actually perform over the next three years.

The advisory opportunity that MTD creates is real. More frequent client engagement, better quality financial data, and a natural shift toward proactive rather than retrospective advice are genuinely available to practices that use the quarterly touchpoint well. But they are only available to practices that have solved the operational problem first, ensuring that the compliance administration is handled efficiently and at the right cost, and that senior professionals are free to focus on the conversations that create the most value.

The extra work is real. The question is who does it, at what cost, and whether the answer leaves your practice in a position to capture the opportunity or simply absorb the burden.

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Published On: 9 July, 2026
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