When HMRC rolled out Making Tax Digital (MTD), thousands of UK businesses scrambled to stay compliant. For many, the solution was bridging software — a separate tool bolted on to spreadsheets or legacy accounting packages to bridge the gap between their records and HMRC's systems. It works, just about. But it also adds another subscription, another login, another point of failure, and another thing to remember at quarter-end. BizHub365 was built differently. It connects directly to HMRC's APIs, so VAT submissions, RTI payroll filings, and ITSA Self Assessment returns go straight from the platform to HMRC — no bridges required.
What Is Bridging Software and Why Do So Many Businesses Still Use It?
Bridging software sits between your existing records — often a spreadsheet or older desktop accounting package — and HMRC's MTD system. It reads your data, formats it correctly, and sends it on. Think of it as a translator hired because the two parties don't speak the same language.
When MTD for VAT was mandated for VAT-registered businesses with taxable turnover above £85,000 back in April 2019, many businesses had no MTD-compatible software at all. Bridging tools filled that gap quickly and cheaply. For a sole trader still running their books in a well-worn Excel spreadsheet, a bridging tool costing £10–£20 per month felt like the path of least resistance.
The problem is that bridging software was always a workaround, not a solution. It addresses compliance without addressing the underlying inefficiency. Your bookkeeping still lives in a format that wasn't designed for real-time digital tax, and every quarter you rely on an extra piece of software — and its developer's continued upkeep — to stay on the right side of HMRC.
How BizHub365 Connects Directly to HMRC
BizHub365 is built as an HMRC-recognised software provider with direct API integration across three critical submission types: MTD for VAT, Real Time Information (RTI) payroll, and ITSA Self Assessment. This isn't a feature added as an afterthought; it is fundamental to how the platform was architected from day one.
When you record a sale, reconcile a bank transaction, or log an expense in BizHub365, that data feeds directly into your VAT return or tax calculation in the background. When it's time to submit, you review the figures and click to send. BizHub365 communicates with HMRC's API directly, receives a confirmation response, and logs it against your records — all within the same platform.
There is no export, no reformatting, no uploading to a separate portal. The chain of digital links that HMRC requires under MTD — what they call "digital links" — is maintained entirely within BizHub365 itself. That means you are fully compliant without needing to stitch together separate tools.
The Real Cost of Bridging Software (It's More Than the Monthly Fee)
Let's be direct: bridging software is not free, and its true cost goes beyond the subscription price. Consider what is actually involved each time you use one:
- Time: You export data from your accounting records, import or paste it into the bridging tool, check for formatting errors, and then submit. A task that should take minutes can easily consume an hour.
- Error risk: Every manual step — copying figures, mapping columns, checking totals — is an opportunity for a mistake. HMRC does not take kindly to inaccurate VAT returns, and penalties can stack up quickly.
- Multiple subscriptions: A small business might be paying separately for accounting software, payroll software, and bridging software. Each is a direct cost, typically anywhere from £10 to £40 per month per tool.
- Compliance dependency: If your bridging software provider falls behind on HMRC API updates — which does happen — your ability to file on time is at risk through no fault of your own.
For an accountant managing 30 or 40 clients, these inefficiencies are multiplied across every single one. Switching clients to a platform with native HMRC connectivity is not a minor convenience; it is a meaningful reclaim of time and a reduction in professional risk.
MTD Is Expanding — and Bridging Will Only Get Harder
MTD for VAT is already mandatory for all VAT-registered businesses regardless of turnover. MTD for Income Tax Self Assessment (ITSA) is on its way, with the current HMRC timetable bringing sole traders and landlords with income above £50,000 into scope from April 2026, followed by those earning above £30,000 from April 2027.
Under MTD for ITSA, businesses will need to submit quarterly updates of their income and expenses to HMRC, not just an annual return. The volume of submissions will increase dramatically. A bridging approach — already cumbersome for quarterly VAT — becomes genuinely unworkable when applied to four quarterly updates plus a final declaration every single year, per client or per business.
BizHub365 already supports ITSA Self Assessment through the same direct API connection. Sole traders and landlords who get their records into the platform now will be well-positioned for the ITSA mandation dates, having built the habit of digital record-keeping long before it becomes compulsory.
What This Means for Accountants and Their Clients
For practising accountants and bookkeepers, the platform's direct HMRC connectivity changes the nature of the compliance conversation with clients. Rather than chasing clients for spreadsheets, checking their bridging software exports, and manually reviewing imported data, you work within a shared, live record that is always MTD-ready.
BizHub365 supports multiple client accounts under a single practitioner login, meaning an accountant can review a client's VAT position, approve the return, and submit directly to HMRC without ever leaving the platform. There is no need to maintain a separate bridging tool licence or to train clients on yet another piece of software.
This also simplifies client onboarding. When a new client joins, you point them to BizHub365, help them connect their bank feed, and the digital record starts immediately. From that point, every transaction is captured in a format that is already compliant with HMRC's digital link requirements.
Conclusion: Compliance Should Not Require a Workaround
Bridging software served a purpose in the early days of MTD. It allowed businesses to meet the letter of the law without overhauling their systems overnight. But the tax digital journey HMRC has mapped out is long, and it is heading in one direction: more submissions, more frequently, with less tolerance for manual workarounds.
BizHub365 was built for exactly this environment. Its direct API connections to HMRC for MTD VAT, RTI payroll, and ITSA Self Assessment mean that compliance is not a bolt-on — it is built in. For sole traders, small business owners, and accountants who want to stop paying for bridging software and start working from a single, integrated platform, BizHub365 is worth a serious look. You can sign up and explore the platform at bizhub365.co.uk.