VAT Guide for UK Small Businesses (MTD Compliant)
Marcus Webb
Tax & Compliance Writer at SortBooks
In this article
What Is VAT?
Value Added Tax is a consumption tax charged on most goods and services sold in the UK. Businesses collect VAT from their customers and pay it to HM Revenue & Customs (HMRC) after deducting the VAT they have paid on business purchases.
The difference between VAT collected and VAT paid is either remitted to HMRC (if you collected more) or refunded to you (if you paid more).
VAT Registration
Mandatory Registration
You must register for VAT if your taxable turnover exceeds GBP 90,000 in any rolling 12-month period. You must also register if you expect to exceed this threshold in the next 30 days alone.
Voluntary Registration
Businesses below the threshold can register voluntarily. This makes sense if:
- Your customers are VAT-registered businesses (they can reclaim the VAT)
- You make significant business purchases with VAT that you want to reclaim
- You want to appear more established to larger clients
Registration Process
Register through the HMRC online portal. You will need your business details, bank account information, and estimated turnover. Registration typically takes 2-4 weeks and you will receive a VAT registration number.
VAT Rates
The UK has three VAT rates:
Standard Rate - 20%
Applied to most goods and services. This is the default rate.
Reduced Rate - 5%
Applied to specific items including:
- Home energy (gas and electricity)
- Children's car seats
- Mobility aids for the elderly
- Sanitary products
Zero Rate - 0%
Items that are taxable but at 0%. You still report them on your VAT return. Includes:
- Most food items (not restaurant meals or hot takeaways)
- Children's clothing and footwear
- Books, newspapers, and magazines
- Public transport
- Exports
Exempt Supplies
Not the same as zero-rated. Exempt supplies are outside the VAT system entirely. You do not charge VAT and cannot reclaim VAT on related purchases. Includes:
- Insurance
- Finance and credit
- Education and training
- Health services
- Postal services
Making Tax Digital (MTD)
Since April 2022, all VAT-registered businesses must comply with Making Tax Digital. This means:
Digital Record-Keeping
You must keep your VAT records digitally using MTD-compatible software. Spreadsheets alone are no longer sufficient unless they connect to compatible software via digital links.
Digital Submission
VAT returns must be submitted digitally through MTD-compatible software. You cannot manually type figures into the HMRC portal.
Digital Links
If you use multiple software programs, data must flow between them via digital links (API connections, CSV imports, etc.) - not manual re-keying.
Xero is fully MTD-compatible, and tools like SortBooks that integrate with Xero maintain the required digital record-keeping chain automatically.
Completing Your VAT Return
VAT returns cover a three-month period and must be submitted within one month and seven days of the period end.
The return contains nine boxes:
- Box 1: VAT due on sales and other outputs
- Box 2: VAT due on acquisitions from EU member states
- Box 3: Total VAT due (Box 1 + Box 2)
- Box 4: VAT reclaimed on purchases and other inputs
- Box 5: Net VAT to pay or reclaim (Box 3 - Box 4)
- Box 6: Total value of sales excluding VAT
- Box 7: Total value of purchases excluding VAT
- Box 8: Total value of supplies to EU member states
- Box 9: Total value of acquisitions from EU member states
VAT Schemes for Small Businesses
Flat Rate Scheme
If your turnover is under GBP 150,000, you can use the Flat Rate Scheme. Instead of calculating actual VAT on each transaction, you pay a fixed percentage of your gross turnover. The percentage depends on your trade sector.
This simplifies record-keeping but you cannot reclaim VAT on purchases (except capital assets over GBP 2,000).
Cash Accounting Scheme
Available if your turnover is under GBP 1.35 million. You account for VAT when you receive or make payment, rather than when you issue or receive invoices. This helps cash flow.
Annual Accounting Scheme
Available if your turnover is under GBP 1.35 million. You submit one annual VAT return instead of four quarterly returns. You make interim payments throughout the year based on estimated VAT.
Common VAT Mistakes
Claiming VAT on non-business expenses - Personal expenses, entertaining clients (except staff entertainment), and non-business vehicles cannot have VAT reclaimed.
Incorrect VAT codes - Applying the wrong rate to a transaction is one of the most common errors. Food items are particularly tricky because some food is zero-rated and some is standard-rated.
Late filing - Late VAT returns attract a default surcharge that increases with each successive late filing.
Not keeping proper invoices - To reclaim VAT, you need a valid VAT invoice showing the supplier's VAT number, the amount of VAT charged, and the rate applied.
Penalties for Non-Compliance
HMRC introduced a new penalty regime in January 2023:
- Late submission: Points-based system. Accumulate points and you receive a GBP 200 penalty. Points expire after a period of compliance.
- Late payment: Penalties start at 2% of outstanding VAT after 15 days, increasing to 4% after 30 days, plus daily interest.
The best approach is consistent, timely compliance. Automated tools that flag approaching deadlines and generate accurate returns are invaluable for avoiding penalties.
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