VortexCore Systems
Built for British
sole traders,
landlords & founders.
Building simple SaaS products aligned to UK rules in 2026. No bloat. No dark patterns. No sales calls. Just tools that work.
A suite built for
modern British life.
Coming soonmtdsolo
The simplest Making Tax Digital journal for sole traders and landlords.
- Log income & expenses against HMRC categories in seconds
- Snap receipts via phone — no manual data entry
- Instant quarterly summaries + PDF/CSV export
- Built for MTD ITSA — the April 2026 mandate
BetaMortgagePulse
Real-time UK housing affordability data. All 12 regions at a glance.
- House prices, mortgage costs & affordability ratios
- Regional growth trends updated daily
- Free dashboard — no account required
- Used by the founder for every property decision
Coming soonFounderDex
The automatic R&D tax credit engine built for UK tech founders.
- Connect GitHub, Jira & Obsidian — logs quietly in the background
- Tracks qualifying commits, cloud spend & technical uncertainty
- Full HMRC-ready evidence pack at claim time
- Used by the founder to log every R&D claim
Infrastructure you
can trust
to just work.
Four principles guide every product decision at VortexCore. No exceptions.
Ruthless simplicity
Every screen, every field, every click is questioned. If it doesn't serve the user's immediate need, it doesn't ship. VortexCore products do one job each — and they do it completely.
Mobile-first, always
Sole traders log receipts from vans. Landlords check affordability on the commute. Founders track R&D on the go. Every product is designed for the smallest screen first.
Full UK policy alignment
Making Tax Digital, HMRC R&D relief rules, regional affordability indices — every feature is built to the exact current UK regulation, not a generic global approximation.
Built and used in public
The founder uses MortgagePulse for property decisions and FounderDex to log every R&D claim. Every decision, pricing change, and line of reasoning is documented in the public build log. No secrets.
We earn trust by
showing the work.
No dark patterns
Free tiers are genuinely useful. Limits are clearly stated upfront. Upgrades are earned, not forced.
Dogfooded daily
The founder uses MortgagePulse for property research and FounderDex for every R&D claim. These tools earn their keep in the real world before anyone else sees them.
Public build log
Every decision, every pricing change, and every product update is documented publicly on Substack and X. Complete transparency.
Built in Britain
VortexCore Systems Ltd is a UK-registered company. Every product is designed specifically for UK regulations, not adapted from US software.
Start today
Start free today.
No sales calls.
No demos.
No nonsense.
Every VortexCore product has a free tier that is genuinely useful from day one. Pick the tool you need, start immediately, upgrade only when it makes sense for you.