Is MTD Bridging Software for Excel Bad? (The Truth for 2026)
- Jun 25
- 4 min read
If you’ve been running your business using a trusty Excel spreadsheet for years, the words "Making Tax Digital" (MTD) probably sound like a bit of a headache. You might have heard whispers in the business community, or even from some software companies, that "Excel is dead" or that using bridging software is a "bad" way to handle your taxes for the 2026 deadline.
But is that actually true? Or is it just clever marketing from big software firms trying to get you onto a monthly subscription?
As we head toward the April 2026 rollout of MTD for Income Tax Self-Assessment (ITSA), it’s time to separate the myths from the reality. I’m Richard, and today I’m going to give you the honest truth about MTD bridging software for Excel.
What is MTD Bridging Software, Anyway?
Before we decide if it's "bad," let's look at what it actually is.
HMRC requires you to keep digital records and send quarterly updates. The problem is that Microsoft Excel, while great for math, doesn't have a "Send to HMRC" button. It isn't connected to the government's systems.
Bridging software is the "middleman." It’s a small, often very simple piece of software that takes the totals from your spreadsheet and securely transmits them to HMRC via an API (a digital connection).
Think of your spreadsheet as a letter and the bridging software as the postman. The postman doesn't write the letter; he just makes sure it gets to the right destination in the right format.
Myth #1: "Bridging Software is a Non-Compliant Hack"
This is the biggest myth out there. Some people think that because you aren't using a "full" cloud accounting package like Xero or QuickBooks, you aren't being "properly" digital.
The Truth: HMRC explicitly lists "spreadsheets used with bridging software" as a valid way to comply with MTD. As long as your records are digital and there is a "digital link" between your spreadsheet and the software, you are 100% compliant.
Is it "Bad"? Let’s Look at the Pros and Cons
Like anything in business, there are two sides to the story. Whether mtd bridging software excel is "bad" for you depends entirely on how you run your business.
The Pros: Why People Love It
Cost: Bridging software is almost always the cheapest route. While full cloud software can cost £30+ a month, some bridging tools cost as little as £20 a year.
Familiarity: If you’ve used Excel for 20 years, you know where everything is. You don't have to learn a whole new interface or change how you do your bookkeeping services.
Control: You aren't handing your data over to a massive corporation. Your spreadsheet stays on your computer.
The Cons: Why Some Accountants Worry
No Error Checking: Bridging software is a "pipe." If you accidentally type £5,000 instead of £500 in your Excel sheet, the bridging software will happily send that £5,000 to HMRC. Full accounting software often flags weird-looking numbers.
Digital Link Risks: To be compliant, you can't just copy and paste a number from Excel into a bridging tool. It has to be linked (usually via a CSV upload or a direct formula). If you start "manually re-keying" data, you’re breaking the MTD rules.
Manual Work: You still have to do all the heavy lifting in the spreadsheet. There are no automatic bank feeds to pull in your transactions.
The "Digital Link" Rule: The One Way Bridging Can Be Bad
If there’s one thing that could get you in trouble with MTD for Excel, it’s the "Digital Link" requirement.
HMRC says that data must flow through your "digital journey" without manual intervention. This means:
NO typing a total from one sheet into another.
NO copying a cell and pasting it into the bridging software.
YES to using formulas (e.g., =SUM(A1:A10)).
YES to exporting a CSV file from Excel and importing it directly into the tool.
If your "system" involves you looking at a screen and typing numbers into a box, that is not MTD compliant. That is where using Excel can become "bad": not because of the software, but because of the way it's being used.
Who is Bridging Software For?
In my experience at Accountant Search, bridging software is a fantastic choice for:
Landlords with one or two properties.
Sole traders with very few transactions.
Business owners who are tech-savvy with Excel and want to keep costs to an absolute minimum.
However, if you are a growing business with hundreds of receipts every month, a limited company accountant will likely suggest moving to cloud software. It simply saves too much time to ignore.
The Verdict for 2026
So, is MTD bridging software for Excel bad? No.
It is a perfectly legal, HMRC-approved, and cost-effective way to meet your obligations. It isn't a "shady workaround"; it's a legitimate tool for businesses that don't need all the bells and whistles of an expensive accounting suite.
The only "bad" part is the risk of human error in your spreadsheets. If you're confident in your math and your digital links, it’s a great option.
How to Get It Right
If you’re unsure whether your Excel setup is ready for the 2026 MTD rollout, the best thing you can do is talk to a professional. Whether you need an accountant in London or someone more local to you in Kent, we can help.
At Accountant Search, we match you with experts who understand your specific needs: whether that’s sticking with your spreadsheets or making the leap to the cloud.
Don't wait until April 2026 to find out your spreadsheet isn't up to scratch. Find an accountant today and get a head start on the transition.
Our Location: Office 107, The Shed, Sergeants Yard, Bordon, Hampshire, GU35 0DJ
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