MTD for VAT for Web Design Limited Companies: what you need to do (and how to keep it simple)

If you run a web design limited company and you’re VAT-registered, Making Tax Digital (MTD) for VAT affects how you keep records and how you submit your VAT returns.

The good news is this: once your bookkeeping is set up properly, MTD becomes a routine. The stress usually comes from trying to patch things together at the last minute—often with spreadsheets, manual copy-and-paste, or logins that only one person knows.

This guide explains what MTD for VAT means in practice for web design limited companies, what HMRC expects, and the simple steps that keep you compliant.

What is MTD for VAT?

MTD for VAT is HMRC’s system that requires VAT-registered businesses to:

• Keep certain VAT records digitally (not just on paper)
• Submit VAT returns using MTD-compatible software (not typing figures into HMRC’s VAT portal)

It doesn’t change the VAT rules themselves. You still calculate VAT the same way. It’s about how you keep records and how you send the return.

Does MTD for VAT apply to web design limited companies?

In most cases, yes. If your limited company is VAT-registered, you’re generally within MTD for VAT.

Some businesses may be exempt in limited circumstances (for example, if it’s not practical to use digital tools due to disability or location). But for the typical web design agency or freelance web designer trading through a limited company, you should assume MTD applies.

What HMRC expects you to keep digitally

MTD for VAT requires you to keep a set of digital records. In plain terms, that means your bookkeeping system should hold the core VAT information, including:

• Your business name, address and VAT number
• VAT accounting schemes used (if any)
• For each sale: the date, value (net), VAT amount (if applicable), and VAT rate
• For each purchase: the date, value (net), VAT amount, and VAT rate

If you’re using accounting software properly, this is usually built in. The key is that the numbers on your VAT return should be supported by records held digitally.

What counts as “MTD-compatible” VAT software?

MTD-compatible software is simply software that can connect to HMRC and submit your VAT return through the MTD system.

For most web design limited companies, that means using something like:

• Xero
• QuickBooks
• Other HMRC-recognised MTD VAT software

Some businesses keep records in spreadsheets and use “bridging software” to submit the return. That can be compliant, but it’s often where mistakes creep in—especially if you’re copying figures between tabs, or if different people edit the spreadsheet.

Digital links: the rule that catches people out

HMRC expects a digital link between your records and your VAT return figures. In practice, this means avoiding manual copying and pasting of VAT totals from one place to another.

For a web design limited company, this matters if you:

• Use separate systems for invoicing and bookkeeping
• Track income in Stripe/PayPal and reconcile later
• Use spreadsheets for parts of the bookkeeping
• Have someone “work out the VAT” manually each quarter

A good setup keeps the journey from invoice/expense → bookkeeping → VAT return as clean and digital as possible.

Common VAT issues for web design limited companies (and how MTD fits in)

1) Mixed income streams (projects, retainers, hosting, domains)

Many web design companies invoice for a mix of services: build projects, monthly retainers, maintenance, SEO, hosting, domain renewals, and sometimes software licences.

The VAT treatment is often straightforward, but the bookkeeping needs to be consistent. If you code things differently each month, your VAT return can become unreliable.

Practical tip: set up clear income categories and apply the right VAT rate to each one. Then your VAT return is largely automatic.

2) Deposits and staged payments

Web design projects often involve upfront deposits and milestone invoices. Your VAT is usually triggered by the tax point (often the invoice date or payment date, depending on the situation).

Practical tip: make sure you raise invoices properly and don’t treat deposits as “off the books”. Under MTD, your digital records should reflect what’s actually happening.

3) Overseas clients and place of supply

If you work with clients outside the UK, VAT can get more nuanced. Some sales may be outside the scope of UK VAT, and some may be zero-rated or treated differently depending on the customer and the service.

Practical tip: don’t guess. If you regularly sell to overseas clients, get your VAT position checked and make sure your software is set up to record these sales correctly.

4) Software subscriptions and reverse charge

Many web designers pay for overseas software tools (design software, hosting platforms, plugins, project management tools). Some of these can involve the reverse charge.

Practical tip: ensure your bookkeeping software is configured for reverse charge where relevant, so your VAT return is correct without manual adjustments.

What you need to do each VAT quarter (a simple routine)

A calm VAT routine is usually:

1. Keep bookkeeping up to date weekly (or at least monthly)
2. Reconcile bank transactions so income and expenses are complete
3. Check VAT coding (especially unusual items and overseas transactions)
4. Review the VAT return before submission (sanity-check the numbers)
5. Submit through MTD software
6. Pay VAT on time (or set up a payment plan early if cashflow is tight)

If you leave bookkeeping until the deadline week, you’re far more likely to submit incorrect figures—or miss the deadline entirely.

Deadlines: what you’re responsible for

VAT returns are usually due one month and seven days after the end of your VAT period (unless you’re on a special arrangement).

Even if someone helps you with bookkeeping, the company is still responsible for:

• Submitting the VAT return on time
• Paying VAT on time
• Keeping proper digital records

If you’re worried you can’t pay the VAT bill, it’s better to address it early. HMRC is generally more helpful when you speak to them before the deadline, not after.

How to set up MTD for VAT properly (without overcomplicating it)

For most web design limited companies, a sensible setup looks like this:

• Choose one bookkeeping system (Xero or QuickBooks are common)
• Connect bank feeds so transactions flow in automatically
• Use proper invoicing (and keep it consistent)
• Capture receipts digitally (phone app is fine)
• Connect the software to HMRC for MTD and test access

Once it’s set up, VAT becomes a review task rather than a rescue mission.

Do you need an accountant if you’re already using software?

Software helps, but it doesn’t guarantee the VAT is correct. Web design businesses often run into VAT issues around overseas sales, reverse charge, deposits, and mixed income streams.

In practice, an accountant helps by:

• Making sure your VAT treatment is correct for how you actually trade
• Checking VAT coding and preventing costly errors
• Keeping you on schedule so deadlines don’t creep up
• Helping you stay compliant without it taking over your week

How Tax Digital can support you

At Tax Digital, we help web design limited companies get MTD for VAT set up properly and kept running smoothly—whether you need a clean initial setup, ongoing VAT return support, or help fixing messy records.

If you’d like us to check your MTD setup, review your VAT coding, or take VAT returns off your plate, we can talk you through the options and make sure you feel clear on what needs doing and when.

Quick checklist: MTD for VAT for web design limited companies

• You’re VAT-registered → you’re likely within MTD for VAT
• Keep VAT records digitally in software (or compliant spreadsheets)
• Submit VAT returns through MTD software (not the old portal)
• Avoid manual copy-and-paste between systems where possible
• Watch out for overseas clients, reverse charge, and deposits
• Keep bookkeeping up to date so VAT is calm and predictable

If you want, tell us what software you’re using (or if you’re still on spreadsheets), and whether you sell to overseas clients—we’ll point you in the right direction.