A client portal is a secure, dedicated digital workspace where you and your clients exchange documents, communications, tasks, and approvals. Client portal automation uses workflow triggers to move information and requests between the practice and the client automatically — reducing the manual back-and-forth of emails and chasing that consumes significant team time in most accounting practices.

This guide covers how client portals work, which platforms are leading the UK market, and how to implement automation that genuinely reduces administrative overhead.

What client portal automation does

A basic client portal gives clients a place to upload documents and view communications. An automated client portal goes further: it triggers document requests automatically when a task begins, sends reminders when items are outstanding, tracks document status, routes approvals to the right person, and notifies the practice team when client action is complete.

The goal is to replace reactive email chains — "could you send us your bank statements for the year?" followed by chasing emails two weeks later — with proactive, automated workflows that keep the information flow moving without the practice team needing to manually track and chase.

The efficiency gains are clearest for practices with high client volumes where the administrative overhead of managing individual email chains is a significant time cost.

Leading client portal platforms for UK accounting practices

TaxDome

TaxDome is a comprehensive practice management and client portal platform originally developed for the US market but now widely used in the UK. Key features include:

  • Client portal with secure document upload and download
  • Automated document request workflows with client reminders
  • E-signature integrated within the portal (supports AES for HMRC client authorisations from 6 April 2025)
  • Built-in messaging (separate from email, within the portal)
  • Task management and client approval workflows
  • Billing and payment processing within the platform
  • Time tracking

TaxDome's automation is built around pipelines: you define a pipeline of stages for each service (annual accounts, tax return, payroll setup), and TaxDome moves the client through stages automatically when conditions are met, triggering document requests, approval emails, and reminders as configured.

Karbon

Karbon is a practice management platform with a strong client portal component. It differentiates through its email integration — client emails in your team inbox can be converted to tasks and linked to client records automatically, and outbound client communications from Karbon are tracked in the client's record.

Karbon's automation features include: automated client requests triggered by work item stages, email templates sent automatically at defined points in a workflow, and reminder sequences for outstanding client action items. Karbon's AI features assist with drafting client emails and meeting summaries.

FYI (formerly FYI Documents)

FYI is a document management and practice management platform designed specifically for accounting practices. It integrates with email to capture and file all client communications automatically, and includes a client portal for document sharing and approval. FYI's automation focuses on document management and filing efficiency rather than the broader practice management workflow management of Karbon or TaxDome.

Glide

Glide is a UK-developed client portal and e-signature platform specifically designed for accounting practices. It handles engagement letter signing, document sharing, and electronic payment of invoices within a branded client portal. Glide's focus is narrower than TaxDome or Karbon — document signing and secure sharing — but it does those tasks with a very clean, client-friendly interface.

Practice management portals (Iris, Digita)

Larger UK practices using Iris or Digita practice management software have access to client portal modules within those platforms. These integrate with the practice management data (client records, tasks, deadlines) more deeply than standalone portal tools, but may have a less polished client-facing interface than specialist portal-only tools.

Designing automated document request workflows

The highest-value automation in most client portals is the automated document request workflow. A well-designed workflow for annual accounts preparation might look like this:

Trigger: the accounts preparation work item is created in the practice management system for a client (typically a monthly trigger based on the client's year-end date).

Automated action 1: the portal sends the client a document request list with all required items for the accounts (bank statements, purchase invoices, sales records, fixed asset additions, payroll summary, etc.). A deadline is set for four weeks before the target completion date.

Automated action 2: if the client has not uploaded all required documents within two weeks, an automated reminder is sent.

Automated action 3: if documents are still outstanding with one week to the deadline, a second reminder is sent, and an alert is raised in the practice management system for the responsible team member to follow up personally.

Automated action 4: when all documents are received, the team member responsible for the accounts is notified automatically and the work item moves to the next stage.

This workflow replaces manual monitoring of document receipt, manual chasing emails, and ad hoc reminders — the practice team's time is spent on the work, not on chasing the information needed to do the work. For more on practice automation tools, see the AI tools and technology for UK accountants hub.

E-signature integration

Client portal automation and e-signature integration work together to automate the approval and signing stage of the engagement cycle. When accounts are finalised or an engagement letter is produced:

  1. The document is uploaded to the portal automatically
  2. The client receives a notification that their approval is required
  3. The client views and signs the document electronically within the portal
  4. The signed copy is filed in the client's portal and the practice management record is updated
  5. The work item progresses to the next stage automatically on completion of signing

Since HMRC began accepting Advanced Electronic Signatures for agent authorisation forms from 6 April 2025, the entire client authorisation process — from engagement letter to 64-8 equivalent — can be completed electronically within a compliant portal.

Implementation approach

Start by implementing the portal for a subset of clients before rolling out to all clients. A pilot of ten to twenty clients allows you to test the workflow, identify client experience issues, and train your team before scaling.

For the pilot, choose clients who are digitally capable and responsive — the clients most likely to adapt quickly to the portal rather than reverting to email. Learn from their experience before rolling out to clients who need more support.

Provide clients with clear, brief guidance on how to use the portal. A short video walkthrough (two to three minutes) is more effective than a written guide for most clients. Offer a brief onboarding call for clients who are uncertain.

Key takeaways

  • Client portal automation replaces manual document chasing and communication tracking with automated workflows that trigger document requests, reminders, and notifications based on workflow stages.
  • The leading platforms for UK accounting practices are TaxDome, Karbon, FYI, Glide, and practice management portals (Iris, Digita) — each with different strengths in workflow depth, client experience, and integration.
  • The highest-value automation is the document request workflow: automatic requests, timed reminders, and escalation alerts when clients do not respond.
  • E-signature integration within the portal completes the digital engagement cycle; HMRC AES acceptance from April 2025 enables fully digital client authorisation workflows.
  • Pilot with a small group of digitally capable clients before full rollout, and provide brief, clear guidance to help clients adopt the portal quickly.

Frequently asked questions

Are client portals secure enough for sensitive accounting documents?

Yes, reputable client portal platforms encrypt data in transit and at rest, use secure authentication (multi-factor authentication is typically available and should be enabled), and provide access controls that limit document visibility to the relevant client. Verify the platform's security certifications and data processing terms before deployment. All platforms holding client data are data processors under UK GDPR and must provide a Data Processing Agreement.

Can I use a client portal instead of email for all client communication?

In practice, most accounting clients still use email for informal communication even when a portal is in place. The most effective approach is to use the portal specifically for document exchange, approvals, and formal communications, and to manage expectations with clients clearly about which channel to use for which purpose. Trying to eliminate email entirely usually increases friction rather than reducing it.

How do clients feel about switching to a portal?

Client reactions vary. Digitally confident clients typically adapt quickly and appreciate the secure, organised alternative to email. Less digitally confident clients may need more support and may initially prefer email. Making the portal's interface as simple as possible (TaxDome and Glide are generally rated well for client-friendliness) and providing hands-on onboarding support for clients who need it improves adoption rates significantly.

What is the difference between TaxDome and Karbon for a UK practice?

TaxDome has a broader feature set including billing and time tracking within the platform, and its pipeline automation is well-developed. It originated in the US market and some defaults and terminology reflect that origin. Karbon's email integration and team workflow management are considered strengths by UK practices. For a practice choosing between the two, a trial of both with real workflows is recommended; the right choice depends heavily on your specific workflow priorities and team preferences.

Does client portal automation work for clients who are not tech-savvy?

Portal automation works for digitally capable clients without much support. For less tech-savvy clients, plan for more onboarding support — a personal walkthrough, a phone-based demonstration, or a printed quick reference guide. Some practices maintain a hybrid approach: portal for digitally capable clients, assisted email workflows for those who cannot adapt. The efficiency gains are lower for the hybrid approach but the client relationship is maintained.