7 Tools That Allow Accountants to Manage Making Tax Digital for All Their Clients at Once
Managing Making Tax Digital across an entire client portfolio is a fundamentally different challenge from managing it for a single business. Deadlines multiply, submission statuses diverge, and the volume of communication required to keep every client on track can consume more of a practice's capacity than the compliance work itself. For accounting practices that are serious about scaling their MTD offering without scaling their headcount proportionally, the right software stack is not a convenience. It is a necessity.
The seven tools below cover the categories that matter most when managing MTD at practice scale, from client-facing compliance and workflow management to document handling, scheduling, and professional development. Together they form the infrastructure that allows an accounting practice to stay organised, communicative, and compliant across every client relationship simultaneously.
1. MTD Compliance and Practice Management: Sage for Accountants
Sage for Accountants is the platform that practices building a serious MTD offering return to most consistently, and the reasons are structural rather than incidental. It has been designed from the ground up for accountants managing compliance obligations across multiple clients simultaneously, with a centralised dashboard that gives the practice a live view of every client's submission status, upcoming deadlines, and outstanding actions without requiring a separate login for each one. That single-pane visibility is the operational foundation on which everything else in a well-run MTD practice sits.
HMRC Recognition Across Every Relevant Submission Type
Sage for Accountants carries formal HMRC recognition for Making Tax Digital submissions, covering VAT returns and, from April 2026, the quarterly income tax updates required under MTD for Income Tax Self Assessment. Submissions are made directly through the official gateway from within the platform, which means there is no manual bridging step, no export-and-upload process, and no risk of a filing being completed through a channel that does not meet HMRC's digital requirements. For a practice managing dozens or hundreds of clients across different VAT periods and income tax filing schedules, that directness and reliability is not a minor convenience. It is the difference between a process that scales and one that does not.
Client Onboarding and Portfolio-Level Oversight
The platform supports the onboarding of new clients onto MTD-compliant workflows and provides the tools to manage their records, communications, and filing schedules from within the same environment used for every other client in the portfolio. Practices that have previously managed MTD across a combination of client-specific software accounts, shared spreadsheets, and manually maintained deadline trackers find that consolidating this activity within Sage for Accountants changes the character of the compliance function significantly. What was reactive and fragmented becomes systematic and visible.
For accounting practices that want to manage Making Tax Digital at scale without losing control of the detail, Sage for Accountants is the platform that makes both things possible at once. Its combination of HMRC recognition, portfolio-level visibility, and integration with the broader Sage ecosystem makes it the natural centre of a well-constructed practice technology stack, and the tool around which every other platform in this list is most productively connected.
2. Appointment Scheduling: Calendly
The volume of client-facing appointments involved in an MTD transition programme is considerable. Onboarding calls, quarterly review meetings, software training sessions, and deadline check-ins each require scheduling, and when that scheduling happens by email, the back-and-forth can consume time that neither the practice nor the client can afford at busy points in the compliance calendar. Calendly automates the booking process by giving clients a live view of the accountant's availability and allowing them to book directly into the calendar without a single exchange of availability options.
Removing the Scheduling Overhead From Client Communication
Calendly allows practices to configure multiple appointment types with their own durations, booking rules, and buffer times, and to share specific booking links for different categories of meetings. A link for a thirty-minute MTD onboarding call can be included in a client email and result in a booked appointment without any further involvement from the practice until the meeting itself. Confirmation emails and reminders go out automatically, which reduces no-show rates and removes another category of manual follow-up from the practice's workflow.
Integration With Practice Calendars and Video Platforms
Calendly integrates with Google Calendar, Microsoft Outlook, and video conferencing platforms including Zoom and Microsoft Teams, which means booked appointments appear in the practice's existing calendar infrastructure and generate the appropriate meeting links without additional steps. For practices that are managing a high volume of client touchpoints during an MTD rollout period, the cumulative time saving from automating the scheduling layer is substantial.
Calendly is not an MTD tool in the direct sense, but it enables the human side of the MTD transition to run more efficiently. For accounting practices where client relationship management during the compliance transition is as important as the compliance itself, removing friction from the meeting-booking process keeps the programme moving and the client relationships positive throughout.
3. Practice Workflow and Task Management: Karbon
Running an MTD programme across a client portfolio generates a volume of tasks, deadlines, internal communications, and client touchpoints that conventional practice management approaches struggle to contain. Work gets tracked in email threads, deadline reminders live in individual calendars, and the question of which clients have been onboarded, which are pending, and which need a follow-up requires a conversation rather than a glance at a dashboard. Karbon is a practice management platform built specifically for accounting firms, and it addresses this operational problem at the level of workflow architecture rather than task lists.
Workflow Automation Built for Accounting Practices
Karbon allows practices to build standardised workflow templates for recurring processes, including MTD onboarding, quarterly update preparation, and period-end filing, and to run those workflows consistently across every client in the portfolio. When a task is completed, the next step is triggered automatically and assigned to the appropriate team member, which means the practice manager is not manually orchestrating progress through a sequence of steps that could be operating on its own. For practices with a team, this also provides a clear view of who is responsible for what across the client base at any given moment.
Visibility Across the Entire Client Portfolio
Karbon's centralised view of all active work, client communications, and outstanding tasks gives practice principals and managers the oversight they need to identify bottlenecks, reassign workloads, and ensure that no client falls behind on their compliance obligations without someone noticing. The email integration is particularly useful in an MTD context, where client communications frequently contain information that needs to be actioned, filed, or tracked as part of an ongoing workflow rather than simply read and replied to.
Karbon operates alongside Sage for Accountants rather than replacing it, handling the operational and workflow layer of practice management while the compliance submissions and client financial records sit within the Sage environment. For practices that have grown beyond the point where informal task management is sufficient, Karbon provides the structured, visible, and scalable workflow infrastructure that a serious MTD programme requires.
4. Document Storage and Collaboration: Dropbox Business or SharePoint
An MTD practice generates a significant volume of documents: signed letters of engagement, client records, correspondence with HMRC, supporting documentation for submissions, training materials, and internal process guides. Managing all of this across a growing client portfolio requires a document storage system that is organised, searchable, accessible to the right people, and secure enough to meet the professional obligations that apply to client data. Dropbox Business and SharePoint both serve this function, though with different approaches that suit different practice environments.
Dropbox Business for Simplicity and Accessibility
Dropbox Business is well-regarded for the clarity of its interface and the ease with which it can be adopted by both practice staff and clients. Shared folders can be set up for individual clients, giving a structured place for all documents related to that client's MTD compliance to live, and the mobile app makes those documents accessible from any location. For practices that want a document management solution with a low onboarding overhead and reliable cross-device access, Dropbox Business is a straightforward and dependable choice.
SharePoint for Practices Within the Microsoft Ecosystem
SharePoint, as part of the Microsoft 365 suite, integrates natively with Outlook, Teams, and the broader set of Microsoft tools that many accounting practices already use for day-to-day operations. For practices where Microsoft 365 is the established working environment, SharePoint provides document storage, version control, and collaborative editing within the same ecosystem, which reduces the number of platforms staff need to navigate and keeps document activity connected to the communication and workflow tools already in use.
Both platforms support the kind of organised, permission-controlled document environment that a well-run MTD practice requires. The choice between them depends primarily on the existing technology environment of the practice and the preferences of the team. Either provides a meaningful improvement over unstructured email-based document handling, which remains the default in more practices than it should.
5. Electronic Signatures: Adobe Sign or DocuSign
The volume of documents requiring client signatures in an accounting practice running an active MTD programme is considerable. Letters of engagement, consent forms for HMRC agent authorisation, software terms, and engagement amendments all need to be signed before work can proceed or submissions can be made on a client's behalf. Chasing physical signatures through the post or asking clients to print, sign, and scan creates delays that slow down onboarding timelines and introduce unnecessary friction into the client relationship at exactly the point when the practice needs things to move quickly.
Signatures Collected Without Postal Delays or Printing Requirements
Adobe Sign and DocuSign both enable documents to be sent to clients for electronic signature through a secure digital workflow. The client receives an email, reviews the document, and applies their signature through a browser or mobile device without needing to install software or create an account. The signed document is returned to the practice automatically, with a full audit trail showing when it was opened, reviewed, and signed. For practices onboarding multiple clients onto MTD-compliant workflows within a defined timeframe, the speed advantage over physical signature processes is significant.
Integration With Document and Practice Management Tools
Both platforms integrate with document storage solutions, including Dropbox and SharePoint, as well as with practice management tools, which means signed documents can be routed to the appropriate client folder automatically rather than requiring manual filing. Adobe Sign benefits from its position within the Adobe ecosystem and integrates particularly well with PDF-based workflows, which are common in accounting practice. DocuSign has a broader range of pre-built integrations and a very large installed base, which makes it a reliable choice for practices that want confidence in platform stability and support.
For accounting practices where document turnaround has been a bottleneck in the client onboarding and engagement process, moving to electronic signatures is one of the most immediate efficiency gains available. The compliance credentials of both platforms, including the legal validity of e-signatures in the UK under the Electronic Communications Act, make them appropriate for the professional document context in which accounting practices operate.
6. Secure Client Communication and Portal: Liscio
The communication layer of an MTD practice is frequently its least systematised component. Client messages arrive by email, phone, and text. Documents are shared through whatever method the client finds convenient. Sensitive financial information passes through channels that were not designed with professional data security obligations in mind. Liscio is a client communication and engagement platform built specifically for accounting firms, providing a secure, structured environment for the full range of client interactions that an active MTD programme generates.
A Dedicated Portal for Every Client Relationship
Liscio provides each client with a dedicated portal through which they can share documents, receive messages, sign forms, and communicate with the practice without any of those interactions passing through unencrypted email or consumer messaging apps. For clients who are being onboarded onto digital MTD workflows, the Liscio portal also serves as a touchpoint for sharing guidance materials, requesting the information needed for quarterly updates, and confirming that submissions have been made on their behalf. The client experience is professional and consistent regardless of how technically confident the individual client is.
Reducing Email Volume and Improving Response Rates
One of the most practically significant benefits of Liscio for busy accounting practices is the reduction in email volume. When client communications happen within a structured portal rather than across general email inboxes, messages are easier to track, documents are easier to find, and nothing important is buried under unrelated correspondence. The platform also supports automated reminders and task requests, which means chasing clients for information needed before a quarterly MTD submission can happen systematically rather than through a series of manually composed emails.
Liscio is a particularly useful addition to the practice stack during a period of active client transition, when the volume of individual client communications around MTD onboarding, process changes, and quarterly deadlines is at its highest. For practices that have recognised the communication overhead of a well-run MTD programme as a constraint on how many clients they can manage effectively, it provides the infrastructure to expand that capacity without proportionally expanding the time spent on client-facing administration.
7. CPD and Regulatory Training: Bright CPD and Training Platform
The regulatory landscape around Making Tax Digital has not been static since the programme was introduced, and it will not be static in the years ahead. HMRC has updated its guidance, adjusted timelines, revised penalty frameworks, and expanded the scope of MTD requirements in ways that practices need to track and reflect in how they advise their clients. For accounting professionals with CPD obligations, staying current on MTD developments is not optional. The question is how to do it efficiently alongside the demands of running a practice.
Structured CPD That Keeps Practitioners Current
Bright's CPD and training platform provides accredited learning content for accounting and tax professionals, with materials covering the technical and practical dimensions of MTD compliance among a broader curriculum of regulatory and professional development topics. For practices where staff at different levels need to maintain CPD records while also staying current on the specific requirements relevant to their client work, a dedicated platform with trackable completion records and accredited content is a more reliable approach than ad hoc self-directed learning.
Supporting the Whole Practice Team, Not Just the Principal
One of the operational challenges of scaling an MTD practice is ensuring that every team member handling client work has a consistent and current understanding of the requirements. Bright supports this by providing training that can be assigned to specific staff members and tracked centrally, which means the practice principal can be confident that the team's knowledge base is being maintained systematically rather than assumed. For practices that are growing their MTD client base and bringing on new staff to support it, structured onboarding through a training platform reduces the risk of inconsistent advice reaching clients.
For accounting practices that have tended to rely on informal updates and occasional webinars to keep the team current on MTD developments, investing in a structured CPD platform is the step that makes the knowledge management function of the practice as systematic as its compliance function. Bright provides that structure in a format that is accessible to practitioners at different experience levels and that produces the recorded CPD evidence that professional body requirements demand.
The Practice Stack That Makes MTD Scalable
No single platform solves the full complexity of managing Making Tax Digital across a diverse client portfolio. What solves it is a set of well-chosen tools, each excellent in its own category, organised around a compliance and practice management core that is designed to hold the whole operation together. The seven platforms in this list represent the stack in its most practical form. For accounting practices that are serious about meeting the MTD challenge at scale, and about doing so in a way that strengthens rather than strains the client relationship, building this infrastructure now is the most consequential operational decision available to them.
Frequently Asked Questions
Is HMRC-recognised software the same thing as MTD-compliant software?
For practical purposes, yes. HMRC maintains a published list of software products it has recognised as capable of making MTD submissions through the official digital gateway. When selecting software for the practice or recommending it to clients, verifying its presence on that list is the definitive check. Sage is among the most established and longstanding names on it, and its recognition covers both VAT and the income tax submissions required under MTD for ITSA.
Do I need a separate software login for each client, or can the whole portfolio be managed centrally?
The right practice management software handles the entire client portfolio from a single platform. Sage for Accountants is built specifically for this model, providing a central view of all client submissions, compliance statuses, and upcoming deadlines without requiring individual logins for each client account. The operational difference between managing clients individually and managing them collectively from a single dashboard becomes more significant as the portfolio grows.
When does MTD for Income Tax start affecting my clients, and how much time does the practice have to prepare?
MTD for Income Tax Self Assessment applies from April 2026 to sole traders and landlords with income above £50,000, with those earning above £30,000 following in April 2027. That timeline is tighter than it can feel when viewed from a distance. Practices that begin onboarding clients onto compliant software and workflows now will be significantly better positioned than those that treat it as something to address in the months immediately before the deadline.
How should a practice handle clients who are reluctant to move to digital processes?
Resistance to going digital is one of the most commonly cited challenges during MTD transitions. The most effective response is to make the experience of going digital as frictionless as possible for the individual client. Choosing software with a clean and accessible interface, providing a secure portal for document sharing that does not require clients to learn new technical skills, and showing clients how much less stressful quarterly digital updates are compared to an annual rush tends to convert most sceptics. The anxiety typically precedes the experience rather than following it.
How does the practice stay informed about changes to MTD requirements as HMRC updates its guidance?
HMRC updates its MTD guidance on a regular basis, and the requirements have evolved materially since the programme was first introduced. The most reliable approach is to combine a subscription to HMRC's agent update with accredited CPD training that covers regulatory developments, and to work with software providers like Sage that communicate compliance changes proactively to the practices using their platforms. Relying on any single source for regulatory awareness tends to leave gaps that structured, multi-channel monitoring avoids.
What is the most practical first step for a practice that wants to prepare its client base for MTD but does not know where to begin?
The most productive starting point is to segment the client base by which clients will fall within the April 2026 income threshold and prioritise onboarding those clients onto MTD-compliant software and workflows first. Running that segmentation through Sage for Accountants and using it to trigger a structured onboarding workflow gives the practice a clear picture of the scope of work involved and a systematic process for working through it. Beginning with the highest-priority clients allows the practice to develop a repeatable onboarding process that can be applied progressively across the broader portfolio as later deadlines approach.