A client portal should start with five things: a secure login where each client sees only their own work, onboarding, files in one place, messages attached to the work, and a view of progress the client can check without asking you. Those five replace most "any update?" emails. Payments, approvals, extra user roles and integrations come next, and only when your process needs them.
This guide goes through each feature, what it replaces and when it is worth building. The examples come from portals we have built for a UK property company, a TikTok Shop academy and our own agency platform.
Start with the questions clients keep asking
Before choosing features, look at your inbox. Most portals exist to answer three questions without anyone on your team having to reply:
- Where is my work up to?
- What do you need from me?
- Where is the file you sent last month?
If a feature does not help answer one of those, it can usually wait for version two.
The five features every portal needs
1. A secure login, with each client seeing only their own work
This is the one part that has to be right on day one. A client seeing another client's documents is the one mistake a portal cannot make, so access rules are designed and tested before anything else is built. Everything we build sits in your own accounts, so you own the data and the login system.
2. Onboarding
Onboarding replaces the welcome email, the intake form and the follow-ups asking for missing information. A good flow collects details, documents and signatures in one pass, then shows the client what happens next. On our own agency platform, a new client starts onboarding from a single branded link.
3. Files in one place
Documents sent by email get lost in threads. In a portal, each file sits against the client and the piece of work it belongs to, so both sides can find the latest version. MRM Group's portal keeps documents per deal, with reminders and an audit history, because property deals involve paperwork that has to be traceable.
4. Messages attached to the work
A portal does not need a chat app. It needs messages that sit next to the task or deal they are about, so the context is not split across WhatsApp, email and calls. When someone new joins the account, the history is already there.
5. Progress the client can see
A simple stage view: what is done, what is happening now, what comes next and what is waiting on the client. This is the feature that cuts chasing most directly. On our agency platform, delivery boards are shared between the agency team and each client, so both sides look at the same status.
Features to add when your process needs them
| Feature | Add it when | Example from our builds |
|---|---|---|
| Payments and subscriptions | Clients pay in stages, or you chase invoices by hand | TMMB Academy runs subscriptions and payments inside its portal |
| Approvals and sign-off | Work cannot move until the client agrees to something | MRM Group's deal flow requires a signed agreement before payment |
| Several user roles | Different people need different views | TMMB Academy has six: admins, coaches, creators, sales, assistants and brands |
| Integrations | Your team types the same data into two systems | MRM Group's public funnel feeds straight into its CRM |
| Reporting | Clients regularly ask how things are performing | Our agency platform reports ad results across Meta, Google Ads and GoHighLevel |
| AI features | Your team writes the same summaries again and again | Our platform turns a call summary into tasks and a draft follow-up email for a person to check |
Each of these adds build time, because each one needs its own screens, rules and testing. Our client portal pricing guide shows how they move the budget.
What to leave out of the first version
- Features copied from other software. A community feed or a points system looks good in a demo. If your clients would not use it, it only adds cost.
- A native mobile app. A portal that works well in a phone browser is enough for most businesses. An app store listing adds review cycles and a second codebase to maintain.
- Every integration at once. Connect the tools the first client journey needs, then add the rest once the portal is in use.
- Automatic decisions on sensitive work. Anything involving money, legal documents or messages sent to clients in your name should keep a person in the loop. MRM Group's system keeps human approval at its sensitive financial and AI decision points for this reason.
How far a portal can go
A portal can grow into the system a whole business runs on. TMMB Academy came to us with fragmented processes, rising software subscriptions and nothing connecting the team to the customer journey. Their portal now gives each of six roles its own workspace, covering onboarding, creator performance, subscriptions and payments, course modules, calls, messages and brand deals.
That build ran for more than 60 days. TMMB reports it was able to take on more capacity, improve retention and generate six figures within roughly two to three months (a client-reported result). You can read the full TMMB Academy case study.
Most businesses should not start there. Start with the five basics, put them in front of real clients, and let the questions they still ask decide what comes next.
Custom portal or off-the-shelf software?
If your process is standard and an existing tool already fits it without workarounds, off-the-shelf portal software is quicker and cheaper to start with. A custom portal makes sense when your process is specific to how you work, when several types of user need different views, or when the portal has to connect to systems you already rely on. More on what we build is on our client portals page.
How to plan yours
- List the questions clients ask by email in a normal week.
- Map one client journey, from signed to delivered.
- Mark every point where the client has to do something: upload, approve or pay.
- List the tools that journey touches.
- Decide who needs access and what each person should see.
That list is most of a scope. Bring it to a discovery call and we will send a written scope and price before anything is built.
