What changed.
Every release, newest first. If a figure or a rate changed, it is written here with the old value and the new one, because that is the part you need to check against your own records.
Newest first. Dates are release dates. This file is the single source for
release notes: the OpenAI submission quotes the top section, so keep it written
for a customer rather than for us.
How to add an entry. Put new work under ## Unreleased as you go, in the
four groups below. When you ship, rename that heading to the version and date
and start a fresh ## Unreleased. Say what someone can now do, not which file
changed. If a figure changed, give the old one and the new one, because that is
the part people need to check against their own records.
- Added — something you could not do before
- Changed — something that behaves differently
- Fixed — something that was wrong
- Security — anything affecting access to data or money
Unreleased
0.1.0 — 2026-10-02
First public release.
Added
- Sign in with an email link. No password to set, lose or leak.
- Workspaces. Pick medical locum, professional services or procurement; the
choice changes which parts of FIGURX you see, and you can change it later.
- Customers with their own payment terms, so every document to them starts
correct.
- Documents: invoices, quotes, receipts, credit notes, purchase orders and
delivery notes. Numbers are issued in sequence per workspace and per type,
and editing a draft keeps its number.
- PDF export, with drafts watermarked so they cannot be mistaken for a
document you have issued.
- Mileage, defaulting to 55p a mile and warning you past 10,000 miles,
where the rate drops to 25p.
- Chat with AI about your own figures (Pro). Ask what you are owed, what is
overdue, what you invoiced this tax year, which customer is worth most. UK
tax years are handled properly, 6 April to 5 April.
- 19 tools in ChatGPT. Sixteen draft documents and run calculations with
no account at all. Three more — save_document, save_mileage and
list_customers — write into your workspace once you connect FIGURX, so
something you work out in a conversation can be kept.
- Free VAT calculator at figurx.app/vat-calculator, no account needed.
- Install to your home screen. FIGURX is a progressive web app and works
offline for the shell.
How the figures are handled
Every amount is calculated in code or in the database, never written by a
language model. A total sent from a browser is ignored and recalculated from
the lines. These are the rates in use, all of which are easy to get wrong:
| Mileage, first 10,000 miles | 55p from 6 April 2026, 45p before |
| Mileage, above 10,000 | 25p |
| Locum employer pension | 12.942% of the fee — 14.38% of pensionable pay, which is 90% of the fee |
| VAT registration threshold | £90,000 of *taxable* turnover |
| Late payment | Bank of England base plus 8%, plus the fixed sum per invoice |
| CIS | 30% unregistered, 20% registered, 0% gross |
Security
- Your workspace is isolated at the database level, not just in the interface,
so another account cannot read your documents even if a query is wrong.
- An approved document is frozen. Its figures cannot drift away from the copy
your customer is holding.
- FIGURX will refuse to save patient-identifiable data. An NHS number or a
date of birth is rejected outright, and wording that looks like it identifies
a patient is flagged for you to check before you approve. FIGURX is a
business record and must never become a clinical one.
- Apps you connect can be revoked at any time from Settings, and stop working
immediately.
Not here yet
- Several people in one workspace, and accountant access.
- Filing VAT returns to HMRC. This is waiting on HMRC, not on us.
- Sending documents by email from inside FIGURX. You export and send them
yourself for now.