Tax & Accountancy Solutions
HMRC compliance without the overhead
Tiraverse has built a purpose-built tax compliance platform that handles the full pipeline — MTD ITSA quarterly reporting, CT600 corporation tax, and VAT returns — from data upload through to HMRC submission. No bloated accounting suite. No manual bridging.
Integrated with 17 HMRC APIs across more than 60 endpoints, and hosted entirely in the UK. Built by engineers with decades of enterprise software experience.
The compliance landscape
What is changing, and why it matters
HMRC’s Making Tax Digital programme is rolling out in phases. From April 2026, sole traders and landlords earning over £50,000 must submit quarterly digital returns to HMRC. The income threshold drops to £30,000 in 2027 and £20,000 in 2028, bringing the majority of self-employed individuals and landlords into scope within two years.
For limited companies, the change is equally abrupt. HMRC shut down its free Company Accounts and Tax Online (CATO) portal on 31 March 2026. Every limited company now needs commercial software to file its annual CT600. The filing itself has not changed — same form, same iXBRL format — but the free submission channel has gone.
Businesses are left with two poor options: full-suite accounting packages that charge for payroll, inventory, and multi-currency modules that most SMEs will never use, or basic bridging tools that satisfy the compliance requirement but leave all the actual work to you. Neither solves the underlying problem.
MTD ITSA mandatory for sole traders and landlords with qualifying income over £50,000. CATO portal already closed — all limited companies need commercial CT600 software.
MTD ITSA threshold drops to £30,000, bringing a significantly larger population of sole traders and landlords into the mandatory quarterly reporting regime.
Threshold drops further to £20,000, making quarterly digital reporting a near-universal requirement for self-employed individuals and landlords.
Platform capabilities
The full compliance pipeline. One platform.
From document upload through processing and bookkeeping to HMRC submission — every step in the tax compliance workflow is handled within the platform.
MTD ITSA Quarterly Reporting
Full Making Tax Digital Income Tax Self Assessment implementation covering self-employment, UK property, and foreign property income. Quarterly updates, annual submission, and final declaration — all submitted directly to HMRC.
- ✓ 10 of 10 HMRC software features covered
- ✓ 3 of 3 business types (self-employment, UK & foreign property)
- ✓ 15 of 16 additional income sources
- ✓ Amend quarterly and annual updates after submission
CT600 Corporation Tax
Full corporation tax computation with compliant iXBRL output for accounts and tax computation. Direct submission to HMRC via Government Gateway. With CATO closed, this is now a mandatory requirement for every limited company.
- ✓ CT600 with iXBRL-tagged accounts and computations
- ✓ Direct Government Gateway submission
- ✓ PDF export and full audit trail
- ✓ Historic filing archive (CATO migration support)
VAT Returns
MTD-compliant VAT return preparation and submission. All nine boxes calculated from your transactional data and submitted directly to HMRC. Full obligation history and submission confirmations retained in your account.
- ✓ All nine VAT return boxes prepared automatically
- ✓ MTD-compliant direct HMRC submission
- ✓ VAT obligation history and confirmations
- ✓ Integrated with bookkeeping — no duplicate entry
Bookkeeping Module
Upload a photo of a receipt, forward an invoice by email, or drop a bank statement into the platform. The bookkeeping module extracts every line item, applies the correct HMRC category, and maintains your books — continuously, from raw source documents.
- ✓ OCR extraction from photos, PDFs, and scanned documents
- ✓ CSV and Excel import with auto-column detection
- ✓ Double-entry bookkeeping maintained automatically
- ✓ Running income and expense totals by HMRC category
Multi-Client Practice Management
A dedicated layer for accountancy practices managing multiple clients. One dashboard shows all obligations, deadlines, and submission statuses. Sole traders, landlords, and limited companies — all managed from the same login.
- ✓ Consolidated client obligation and deadline view
- ✓ Auto-Pilot email collection: clients reply with attachments, we handle the rest
- ✓ File ITSA, CT600, and VAT returns on behalf of clients
- ✓ Automated deadline reminders and client communications
UK Hosting & Data Sovereignty
All data is stored on UK servers. Your financial information does not pass through US-owned cloud infrastructure or overseas data centres. HMRC connectivity uses OAuth 2.0 — we never hold your HMRC credentials.
- ✓ UK-hosted infrastructure — data never leaves the country
- ✓ AES-256-GCM encryption for sensitive identifiers and tokens
- ✓ OAuth 2.0 HMRC authorisation — no stored passwords
- ✓ UK GDPR compliant with full data export and deletion
Who it is for
Built for the people who actually file
Different users have different compliance requirements. The platform is designed to handle each of them without forcing a one-size-fits-all approach.
Sole Traders
Self-employed individuals earning over £50,000
If your qualifying income exceeds £50,000 in 2025–26, you must file quarterly under MTD ITSA from April 2026. Upload your invoices and bank statements — from your phone, by email, or via the platform — and we handle bookkeeping, quarterly reporting, VAT, and the annual final declaration.
You can review and approve every step yourself, or let the platform run on its own. Either way, submissions go directly to HMRC and you receive a full audit trail for every return.
Landlords
Rental income from UK and foreign property
Rental income counts toward the MTD ITSA threshold alongside any self-employment income. Whether you have a single buy-to-let property or a portfolio, the platform handles UK property and foreign property income sources separately, each reported quarterly under their own HMRC business type.
If you also have self-employment income, both streams are managed in the same platform — not in two separate tools with two separate submission workflows.
SMEs & Limited Companies
Annual CT600 filing now requires commercial software
CATO closed on 31 March 2026. Every limited company — including micro-entities and dormant companies that previously self-filed for free — now needs commercial CT600 software. The filing itself has not changed, but the free submission channel has gone.
Directors with qualifying self-employment or rental income above £50,000 outside their company also need MTD ITSA. Director salary and dividends do not count toward that threshold — only separate sole-trade or property income does. One platform handles both.
Accountancy Practices
Managing multiple clients across sole trade, property, and corporate
The practice management layer gives accountants a single dashboard across all their clients’ MTD ITSA, CT600, and VAT obligations. Auto-Pilot sends deadline reminders to clients directly; clients reply with their source documents by email and the platform converts attachments into categorised transactions automatically.
The displacement of micro-entity CATO self-filers is a client acquisition opportunity for practices. Tiraverse provides the tooling to onboard them efficiently without adding proportional overhead to the team.
Technical depth
HMRC API coverage and platform security
HMRC publishes a recognised software listing that details what each MTD tool supports. The figures below reflect Tiraverse’s standing on that listing.
10/10
Software Features
Full HMRC listing coverage
3/3
Business Types
Self-employment, UK & foreign property
15/16
Income Sources
All except partnership (HMRC API due 2026)
17
HMRC APIs
60+ endpoints integrated
HMRC API integration
MTD ITSA endpoints
Quarterly updates, annual submission, final declaration, amendments, tax calculation, and obligations retrieval.
Additional income source APIs
Savings accounts, dividends, pensions, employments, state benefits, foreign income, capital gains, reliefs, deductions, and charges.
MTD VAT API
Obligations retrieval, nine-box return submission, payment information, and historical return lookup.
CT600 via Government Gateway
Corporation tax returns in iXBRL format submitted directly through the Government Gateway, with HMRC acknowledgement stored in the platform.
Security and data handling
UK-hosted infrastructure
All data stored on UK servers. Your financial data never leaves the country or passes through overseas infrastructure.
Application-level encryption
National Insurance numbers and HMRC OAuth tokens encrypted with AES-256-GCM before reaching the database. TLS 1.2+ on all connections.
OAuth 2.0 — no stored credentials
HMRC authorisation is handled directly between you and HMRC. We hold a refresh token, not your password. Revoke access at any time.
UK GDPR compliant
Full data export in machine-readable format. Granular consent management. Account deletion with 30-day grace period.
✓ Integrated with 17 HMRC APIs across more than 60 endpoints
Ready to discuss your compliance requirements?
Whether you need MTD ITSA quarterly reporting, CT600 corporation tax filing, or a practice management platform for multiple clients, we can walk you through what the platform covers and how it fits your situation.
Book a Consultation