VAT Returns & MTD Filing
For London Businesses
ACCA-qualified VAT accountants based in Wimbledon, serving small businesses across South West London and the UK. We prepare, reconcile, and submit your quarterly VAT returns under Making Tax Digital, on time, every quarter, on a transparent fixed fee.
Get a Free VAT Quote
When Is Your VAT Return Due?
For quarterly filers, your VAT return deadline is one calendar month and seven days after the end of your VAT period. This date covers both filing and cleared payment reaching HMRC's account. Not just sending it.
Quarter 1
31 March
VAT period ends
7 May
Deadline
Quarter 2
30 June
VAT period ends
7 August
Deadline
Quarter 3
30 September
VAT period ends
7 November
Deadline
Quarter 4
31 December
VAT period ends
7 February
Deadline
We manage your entire submission cycle and strongly recommend setting up a Direct Debit to eliminate any late payment risk.
Making Tax Digital: Mandatory Since April 2022
Since 1 April 2022, every VAT-registered business in the UK must maintain digital records, use MTD-compatible software, and submit returns via an API digital link. Manual entry through the old HMRC portal is no longer permitted, regardless of your turnover.
Xero VAT Submissions
Full setup, bank feed connection, VAT return review, and MTD-linked digital submission direct to HMRC through Xero.
QuickBooks & FreeAgent
VAT configuration, MTD-linked filing, and reconciliation for businesses on QuickBooks, FreeAgent, or Sage.
Bridging Software
Still using spreadsheets? We configure bridging software to create the required digital link to HMRC without changing your workflow.
Not yet on cloud accounting? We migrate your records and configure your software as part of our onboarding at no extra charge.
Choosing the Right VAT Scheme Saves Money
Most businesses default to the Standard Rate scheme when they register for VAT. Depending on your turnover, margin, and sector, a different scheme may save you significant money or reduce your admin burden substantially.
| VAT Scheme | How It Works | Best For |
|---|---|---|
| Standard Rate | Pay VAT on invoices issued, claim input VAT on purchases | Most VAT-registered businesses with significant input VAT |
| Flat Rate Scheme | Pay a fixed percentage of gross turnover to HMRC, regardless of actual input VAT | Low-cost service businesses with turnover under £150,000 |
| Cash Accounting Scheme | Account for VAT when payment is received or made, not when invoiced | Businesses with slow-paying customers or cash flow pressure |
| Annual Accounting Scheme | One VAT return per year with interim advance payments | Businesses with predictable turnover wanting minimal admin |
| Margin Scheme | VAT calculated on margin only, not the full selling price | Second-hand goods, antiques, vehicles, art |
We model each scheme against your actual figures before recommending anything. The right scheme choice can make a measurable difference to your quarterly VAT bill.
VAT Return Boxes 1–9 Explained
Errors in VAT return boxes are one of the most common triggers for HMRC compliance checks. Here is exactly what each box requires and where businesses most often go wrong.
Box 1
VAT Due on Sales
Output VAT charged on all your taxable supplies during the period.
Common error: missing reverse charge VAT; omitting import VAT
Box 2
VAT on EU Acquisitions
VAT on goods acquired from EU VAT-registered businesses. Post-Brexit applies to Northern Ireland businesses only.
Common error: GB-only businesses completing this box incorrectly. Must be left blank for most.
Box 3
Total VAT Due
Box 1 + Box 2 combined. The total output VAT you owe HMRC before claiming input VAT.
Common error: arithmetic mistakes when entered manually rather than via software
Box 4
VAT Reclaimed on Purchases
Input VAT on eligible business purchases and expenses during the period.
Common error: claiming VAT on client entertainment, personal expenses, or invoices without a valid VAT number
Box 5
Net VAT Position
Box 3 minus Box 4. A positive figure means you owe HMRC; a negative figure means HMRC owes you a refund.
Common error: not claiming a VAT repayment when the box shows a negative figure
Box 6
Total Value of Sales (Ex-VAT)
All outputs excluding VAT, including zero-rated and exempt supplies as well as standard-rated.
Common error: including VAT in the figure; omitting zero-rated supplies from the total
Box 7
Total Value of Purchases (Ex-VAT)
All business purchases excluding VAT, used for cross-checking input VAT reclaimed in Box 4.
Common error: including personal or non-business purchases; double-counting
Box 8
Value of EU Supplies
Goods supplied to EU VAT-registered customers. Post-Brexit: applies to Northern Ireland businesses only.
Common error: GB-only businesses completing this box. Must be left blank unless you trade in NI.
Box 9
Value of EU Acquisitions
Goods acquired from EU VAT-registered businesses. Post-Brexit: Northern Ireland businesses only.
Common error: same as Box 8. Leave blank for all GB-only businesses.
We verify all nine boxes before submission, cross-referencing your software records against your bank statements and purchase invoices.
What You Risk if You Miss a VAT Deadline
HMRC operates a points-based penalty system for VAT returns since January 2023. A single missed quarter followed by a late payment can result in hundreds or thousands of pounds in compounding fines before you realise there is a problem.
Late Submission Penalties
Late Payment Penalties
When Must You Register and When Should You?
Registering late carries its own penalties. You will owe VAT on past sales even if you did not charge it at the time. Voluntary registration is not always the right move. We model the actual numbers before recommending either way.
Mandatory Registration
£90,000 threshold
Required when your VAT-taxable turnover exceeds £90,000 in any rolling 12-month period (2025/26). You must register within 30 days and begin charging VAT from the first day of the following month.
- Register within 30 days of exceeding the threshold
- Back-charge VAT applies if you register late
- We manage your registration application with HMRC
- We monitor your turnover and flag when the threshold is approaching
Voluntary Registration
Worth considering in certain situations, but not automatically the right move for every business, particularly if your customers are members of the public who cannot reclaim VAT.
- Your customers are mainly VAT-registered businesses
- You have significant input VAT on your own purchases
- Being VAT-registered adds credibility in your sector
- You are approaching the threshold and want to plan ahead
Beyond Basic Quarterly Filing
We regularly handle VAT situations that go significantly beyond straightforward quarterly returns. These are areas where errors are costly and specialist knowledge protects your position.
Reverse Charge VAT
Construction sector CIS domestic reverse charge, supply of staff, and digital services, all handled correctly to avoid HMRC errors.
Partial Exemption
Businesses with both taxable and exempt supplies, including financial services, insurance, and property, require careful apportionment of input VAT.
VAT on Property
Option to tax, capital goods scheme, and transfers of going concerns. Critical for commercial landlords and property developers.
Import VAT & Postponed VAT Accounting
Post-Brexit PVA for businesses importing goods. Avoid cash flow hits and ensure your import VAT is properly reclaimed.
E-Commerce VAT
UK VAT for sellers on Amazon, eBay, Shopify, and Etsy. Marketplace VAT rules, OSS registrations, and digital service taxes.
HMRC VAT Investigation
If HMRC opens a VAT compliance check, we respond on your behalf, provide the records required, and represent you throughout the process.
What Makes Our VAT Service Different
Most VAT accountants file your return and move on. We treat every quarterly return as a compliance review, checking for errors, identifying scheme opportunities, and flagging anything unusual before HMRC does.
Get a Free VAT Quote →All nine boxes verified before every submission
We cross-reference your software records against your bank statements and purchase invoices before filing anything.
Scheme review on joining and annually
We check whether your current VAT scheme is still optimal as your turnover and costs evolve.
Direct HMRC liaison if a query arises
As your authorised agent, we respond to any HMRC queries about your VAT position. You never need to deal with them directly.
Error correction service for past returns
Spotted an error in a previous return? We correct it using the appropriate method, voluntary disclosure or next-return adjustment, before HMRC finds it first.
Fixed monthly fee, no per-quarter surprises
Your VAT service is included in a transparent fixed monthly package. You know exactly what you pay before we begin.
MTD for VAT and MTD for Income Tax Are Not the Same Thing
MTD for VAT (mandatory since 2022) and MTD for Income Tax Self Assessment (ITSA) are two separate HMRC obligations. If you are a sole trader or landlord with combined gross income above £50,000, you are also now subject to MTD for ITSA from 6 April 2026.
MTD for Income Tax: What You Need to Know
MTD for ITSA requires quarterly digital updates of your income and expenses, replacing the annual Self Assessment tax return. A final declaration is due by 31 January each year. Around 780,000 sole traders and landlords are affected in Phase 1.
We cover this in full on our dedicated service page: MTD for Income Tax: Complete Guide & Compliance Service →
April 2026
Income over £50,000
April 2027
Income over £30,000
April 2028
Income over £20,000
Wimbledon, South West London & UK-Wide
Our office is at Lombard Business Park, Wimbledon, SW19 3TZ. We provide in-person meetings for local clients and a fully remote service for businesses anywhere in the UK. If you are searching for a VAT accountant near me in South West London, our Wimbledon team offers face-to-face access that most online-only firms cannot match.
Our Office, SW19
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Fully Remote Service
Frequently Asked Questions
About VAT Returns in London
Ready to Hand Your VAT Over to a Qualified London Accountant?
Stop tracking quarterly deadlines, worrying about penalty points, and reconciling VAT boxes yourself. Protax handles your full VAT position: scheme selection, bookkeeping, reconciliation, MTD submission, and HMRC liaison on a transparent fixed monthly fee.
- Free initial VAT assessment, no obligation
- Response within one business day
- All nine VAT boxes verified before every submission
- ACCA-certified, HMRC authorised
- Xero, QuickBooks, FreeAgent & Sage supported
- Fixed fee, no hidden charges, no per-quarter billing
Already a client? Go to our Contact page for existing client queries.
Request Your Free VAT Quote
Tell us about your business and VAT situation. We'll send a clear, fixed-fee proposal by email.
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