Custom Software Development

You've outgrown the off-the-shelf tool, but no product fits how your firm works.

When the workflow is yours and nothing on the market matches it, we build software that does. Client portals, practice management tools, internal systems, and full products for firms that have hit the ceiling of what they can buy.

We work with accounting, bookkeeping, and tax firms and nothing else.

What we build.

Client portals

A single place for your clients to send records, approve work, sign documents, and see where things stand, connected to the systems your team already uses.

Practice management tools

Job tracking, deadline management, and capacity views shaped around how your firm actually runs, not a generic template you bend yourself to fit.

Internal systems

The internal tool your team has been running on a shared spreadsheet, rebuilt as something reliable, permissioned, and connected to the rest of your stack.

Full products

For firms productising their own expertise: a complete application built and shipped to a fixed scope, price, and date.

The stack it plugs into.

Custom software that connects to the tools you already run rather than replacing them. We build to integrate, not to lock you into a platform of ours.

  • Xero
  • QuickBooks
  • Sage
  • IRIS
  • Companies House
  • HMRC
  • Google Workspace
  • Microsoft 365

Map, build, run.

  1. Map

    We audit how work moves through your firm and where the hours go, costed against your own staff rates. You get a prioritised roadmap: what to build first, what it saves, what it costs. Delivered in 5 business days or it's free.

  2. Build

    Fixed scope, fixed price, fixed ship date, agreed in writing before anyone starts. Built and tested inside your existing stack. Training and documentation included. Nobody learns a new platform.

  3. Run

    Your automations monitored, maintained, and extended every month, so software updates and integration changes never become your problem. Or take the documentation and run it yourself. Both are fine.

The guarantee

Fixed scope, fixed price, and a fixed ship date in writing before anyone starts. We miss it, we work free until it's live, plus 10% off your next build.

Custom Software FAQ

Custom software, answered.

When the product on the market forces you to change how your firm works, or when the workflow that makes you money is the one no tool supports. If a bought tool fits, we will tell you to buy it. Clarity is where we work that out honestly.

Yes. It is your software, built inside or connected to your stack, with training and documentation included. Take the documentation and run it yourself, or keep us on to maintain and extend it. Both are fine.

After the Clarity audit scopes the work. Every build then carries a fixed scope, a fixed price, and a fixed ship date agreed in writing before anyone starts.

Start with Clarity.

A paid audit of your workflow, delivered in 5 business days or it's free, and credited in full against your first build. You get a map of where the hours go and a costed plan to get them back.