Built and run by dispensing GPs. A live market dashboard your whole practice uses every day, and a tailored deep-dive that turns your own prescribing into recovered margin.
On the left, the live market dashboard your whole practice can use every working day. On the right, the latest from Tariff Watch. This is the heart of RxMargin.
The subscription keeps the whole dispensing market in front of you every day, for a flat monthly fee. The tailored report is a one-off deep dive, sized to your list, that turns your own history into, typically, around £50,000 of identified recoverable margin. Most practices start with the subscription and add the report when they want the full picture.
Final pricing is being confirmed. It scales with list size, so a smaller practice pays less overall; we confirm the exact figure for your list size after an initial look. Prices will exclude VAT. The live dashboard keeps you ahead day to day, the tailored report recovers the margin you are currently missing, and the two work together.
No-obligation first look: from a single period of your data we tell you whether there is enough recoverable margin to be worth your while, before you commit to anything.
Why practices trust the numbers
Reimbursement, the Drug Tariff, concessions, rebates and procurement all move independently, and a line that made money last quarter can quietly turn into a loss. RxMargin tracks it line by line and refreshes every working day, so the whole market is in front of you in seconds, not minutes.
Net cost versus reimbursement on every line, so loss-making and over-tariff items surface instead of hiding in the average.
Supplier rebate schemes and live price concessions tracked, flagging where you are below the rates you could earn.
The best in-stock price for any line across the wholesalers, with 90-day history, so you always buy well.
What used to take minutes takes seconds, handing hours back to your dispensary team every week.
Every prescribing clinician gets their own login showing the practice's preferred lines at the point of prescribing. Costs, margins and figures stay with the partners. That is what makes better prescribing stick, without ever exposing commercially sensitive data to the wider team.
Not just the partners. Salaried GPs, registrars, ANPs and practice pharmacists all see the same agreed preferred lines, so the whole team prescribes from the same page.
The recommended product, form and pack for each therapeutic choice, with the clinically equivalent alternative alongside. Good decisions happen as the script is written, not audited months later.
The prescriber view never shows cost, margin or any figure. Commercial data stays with the partners and practice manager, which is exactly why partners are comfortable rolling access out to everyone.
The result: partners keep commercial data private, prescribers get clean clinical guidance, and the whole practice moves to its preferred lines together. It is a secure portal page, not another system to install: we set up a login for each prescriber, onboarding takes minutes, and it opens in the browser alongside your clinical system. Talk to us about practice-wide access →
Dispensing data, wholesaler invoices and remittances, sent securely. We provide a simple checklist.
Our audited workflow reconciles every line and audits the figures before anything is reported.
Dashboards and reports appear in your private portal, only your practice and our team can see them.
A prioritised list of recoverable margin, with the value at stake on each line, ready to act on.
See the full method, the line-level maths and the engine behind it → · Or read the latest Tariff Watch →
We treat your data the way a practice has to. Hosting is in the UK, every practice is isolated, and access is by individual sign-in, there's no shared login and no open link.
Each practice can only reach its own material. One practice physically cannot fetch another's files, access is blocked before the request is served.
Each named user signs in with a one-time code to their own email. No shared passwords for you to manage, and access can be removed in seconds.
Content is served from the UK behind an access-controlled front door, so practice material never sits on an open address.
The analysis uses practice-level dispensing, tariff and invoice data (drug, pack, cost and reimbursement). It uses no patient-identifiable records and nothing from the clinical record, which keeps the governance burden proportionate.
We align to the NHS Data Security and Protection Toolkit and sign a data-processing agreement with your practice. You remain the data controller; we are your processor, with a defined retention and deletion policy.
Every reimbursement, cost and margin figure is computed by rule against the Drug Tariff, never guessed or estimated. No patient-identifiable data is involved, and a dispensing GP checks every material number against source and signs it off.
We provide a data-processing agreement, our DSPT position and our retention and deletion policy before any real practice data is shared.
RxMargin is built and run by practising NHS GPs who dispense. The method was developed against real dispensing data from a working practice, encodes how a dispensary actually trades, and every material figure is audited by a dispensing GP before it reaches your portal, not generated and left unchecked.
A practising NHS GP with a keen interest in software development and how technology can transform the NHS and improve its efficiency. Edward built the RxMargin engine that turns raw tariff, invoice and dispensing data into recoverable margin.
A senior partner at a dispensing practice with years of experience and a sharp financial awareness of how a dispensary actually runs. Mark grounds every figure in the day-to-day reality of dispensing.
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rxmargin.co.uk, www.rxmargin.co.uk, portal.rxmargin.co.uk, rxmargin.cloudflareaccess.com and rxmargin-notify.ed-muffett.workers.dev (the enquiry-form endpoint).
A short, dated read on the Drug Tariff, contract and QOF changes that move dispensing income. Read the full Tariff Watch →
Last updated: 10 June 2026
Email us about an initial review and we'll explain what we'd need and what you'd get back. The first look is no-obligation: we'll tell you, from a single period of data, whether there's enough recoverable margin to be worth your while before you commit to anything.