Zero-Storage.
Total Compliance.
Security isn't just a feature at The MTD Bridge—it's the foundation of our engineering architecture.
1. Ephemeral Processing (RAM Only)
Unlike traditional accounting software, we don't want your data. When you upload a spreadsheet, our engine parses the required totals in transient RAM only. Once the submission to HMRC is complete, the data is instantly purged. We do not maintain a database of your financial records.
2. Military-Grade Encryption
Your data is protected by AES-256 encryption from the moment it leaves your browser until it reaches the HMRC API. We use secure, encrypted tunnels (TLS 1.3) to ensure that no third party can intercept your tax information.
3. The "Digital Link" Requirement
HMRC's MTD rules (VAT Notice 700/22 and upcoming ITSA rules) require a "Digital Link" between your records and their API. The MTD Bridge satisfies this by programmatically reading your cells—eliminating the "Copy and Paste" errors that HMRC is trying to prevent.
4. UK-Based & ICO Registered
We are a British company based in Bristol. We are registered with the Information Commissioner's Office (ICO) as a Data Controller. We adhere strictly to UK GDPR, collecting only the absolute minimum data required to contact you about your filings.
Our Security Promise
Data Hygiene & Transparency
What we store:
- Your Email Address
- Mapping Fingerprints (Layout only)
- HMRC Submission Tokens
- Receipt ID & Timestamp
What we NEVER store:
- Your Spreadsheets
- Your Expense Details
- Your Property Addresses
- Bank Account Numbers