A family of small, honest tools that file the paperwork HMRC and Companies House now require in commercial software, built for sole traders, landlords and small companies, not enterprise finance teams.
Every product shares the same backend: identity, document extraction, validation, submission, receipts and audit trail, so each new market ships fast and stays reliable.
| Market | What it covers | Key date | Status |
|---|---|---|---|
| Priority 1 · 10/10Companies House accounts | From 1 April 2028, all UK companies must file annual accounts via commercial software. CompanySimple covers accounts, CT600, confirmation statements and deadline monitoring. Read the full guide → |
1 Apr 2028 | Next up |
| Priority 2 · 9.5/10Making Tax Digital — Income Tax | Landlords and sole traders are being progressively mandated onto MTD from 2026. LandlordSimple handles bank import, categorisation and quarterly submissions. | Threshold to £20k by 2028 | Roadmap |
| Priority 3 · 9.5/10Digital Waste Tracking | New compulsory reporting for waste sites, carriers and brokers. WasteTrack Simple gives operators a mobile job workflow with photo capture and submission. | Mandatory 1 Oct 2026 | Roadmap |
| Priority 4 · 9/10Companies House ID verification | Director and PSC identity checks are already live. A compliance dashboard and verification workflow, bundled with company administration. | Further rules Nov 2027 | Watching |
| Priority 5 · 8.5/10EPR packaging reporting | PackReport AI maps SKUs to packaging materials once, then turns sales data into compliant Extended Producer Responsibility reports. | Reporting already live | Watching |
| Priority 6 · 8.5/10Corporation Tax | CT600, iXBRL accounts and computations, HMRC validation and acknowledgement handling: our first product, built to fold into CompanySimple. Read the full guide → |
Live filing requirement now | Building now |
| Priority 7 · 8/10VAT bridging | Import a spreadsheet or accounting export, validate the nine VAT boxes, and submit straight to HMRC through the VAT API. | Live filing requirement now | Roadmap |
| Priority 8 · 8/10CIS | CIS Simple maintains subcontractors, calculates deductions and files the monthly CIS300 return, with WhatsApp statements as an upsell. | Recurring monthly filing | Roadmap |
| Priority 9 · 8/10HM Land Registry | ConveyancingFlow AI extracts application data, validates documents and tracks requisitions for conveyancers and case-management providers. | Expansion through 2026/27 | Watching |
Every Digital Filing Systems product is a thin, plain-English layer on top of the same four-stage pipeline.
Client identity, company lookup and secure credential storage, done once per customer.
Documents and data are read, categorised and checked against the rules for that filing.
Every submission gets a clear, plain-English summary and requires your explicit approval before it's filed.
Filed through the official government API, with acknowledgements and an audit trail kept for you.
CT600 is the HMRC form UK companies use to file a Company Tax Return (Corporation Tax). Since HMRC's free joint filing service closed, it must be filed using HMRC-recognised commercial software.
No. Our products are built for sole traders, landlords and small companies to file directly, in about five minutes, without hiring an accountant.
Typically £10 to £25 per filing, priced to match the market rather than undercut it, with no monthly subscription.
From 1 April 2028, all UK companies must file annual accounts with Companies House using commercial software. Corporation Tax and some other filings already require it today.
Most government filing software is priced and designed for accountants and enterprise finance teams. We build the opposite: a five-minute, plain-English filing that costs less than a takeaway, for the millions of small companies, landlords and contractors who now have no choice but to file digitally.
Corporation Tax filing is live first. Want early access, or to talk about one of the other nine markets?
Get in touch