Great experience overall. Clear steps, smooth submission, and instant acknowledgement of receipt. Exactly what I needed.
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Matthew Green
HMRC recognised software
File Your
Income Tax
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HMRC recognised software to help individuals and businesses complete and submit their Self Assessment accurately and on time.
1000+ Trusted by UK users
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VAT Filed
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Our
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Complete Online MTD Filing
Professional tax filing services designed for speed, accuracy, and
compliance.
Submit directly to HMRC with confidence.
VAT Returns (MTD for VAT) 63% OFF
Submit VAT returns directly to HMRC using Making Tax Digital (MTD) compliant software. Designed for businesses and accountants who need a fast, secure and accurate VAT filing solution.
- HMRC-recognised MTD for VAT software
- Direct VAT return submission to HMRC
- Automatic VAT calculations and validations
- Spreadsheet (Excel) upload support
- Error checking before submission
- Secure HMRC OAuth authorisation
- VAT return PDF records and download
- Supports accountants and agents
- 4 Quarterly VAT submissions
£15.99
You save £10.00 (63%)
£5.99
Self Assessment (MTD for Income Tax) 63% OFF
Prepare and submit Self Assessment tax information using HMRC Making Tax Digital for Income Tax (MTD ITSA) compatible software. Built for individuals, landlords, and sole traders.
- MTD for Income Tax compatible platform
- Quarterly updates submission to HMRC
- Final Declaration submission
- Automatic tax calculations
- Error validation before submission
- Secure HMRC authorisation
- Downloadable submission records
- Supports accountants and agents
- 4 Quarterly and Final declaration submissions included
£15.99
You save £10.00 (63%)
£5.99
HMRC Recognised
HMRC Recognised
Fast Filing
Submit in under 30 mins
Instant Support
24/7 customer service
Auto Calculation
No manual math errors
MTD for Income Tax
Who Needs to File MTD Self Assessment?
Making Tax Digital for Income Tax (MTD ITSA) is being introduced in phases from April 2026. If you're a sole trader or landlord, check below to see when your obligations begin.
Phase 1 — From 6 April 2026
Sole traders & landlords with qualifying gross income over £50,000 from self-employment and/or property.
Mandatory NowPhase 2 — From 6 April 2027
Sole traders & landlords with qualifying gross income over £30,000 from self-employment and/or property.
Coming SoonPhase 3 — From 6 April 2028
Sole traders & landlords with qualifying gross income over £20,000 from self-employment and/or property.
PlannedWho Must Comply with MTD for Income Tax?
Must File
Sole Traders
Self-employed individuals with qualifying gross income above the threshold
Landlords
Individuals with UK or overseas property income above the threshold
Combined Income
Those with income from both self-employment and property combined above threshold
Freelancers & Contractors
Self-employed freelancers registered for Self Assessment above the threshold
Not Yet Required
Partnerships
Timeline to be confirmed by HMRC at a later date
Limited Companies
Corporation Tax is separate — MTD ITSA is for individuals only
Below Threshold
Those below the income threshold can voluntarily sign up for MTD
Digitally Excluded
Exemptions available for age, disability, or location reasons
How It Works
How MTD Self Assessment Works
Instead of one annual Self Assessment return, MTD requires you to keep digital records year-round and submit quarterly updates to HMRC, followed by a Final Declaration.
1
Sign Up & Connect
Register on 11taxassist, link your Government Gateway account, and authorise our HMRC-recognised software.
2
Keep Digital Records
Record your business income and expenses digitally throughout the year using our intuitive platform.
3
Send Quarterly Updates
Submit summaries of income & expenses to HMRC every 3 months. Deadlines: 7 Aug, 7 Nov, 7 Feb & 7 May.
4
Final Declaration
Confirm all income, claim allowances, and submit your Final Declaration by 31 January — replacing the traditional SA return.
MTD Quarterly Update Deadlines
| Quarter | Period Covered | Submission Deadline |
|---|---|---|
| Q1 | 6 April – 5 July | 7 August |
| Q2 | 6 July – 5 October | 7 November |
| Q3 | 6 October – 5 January | 7 February |
| Q4 | 6 January – 5 April | 7 May |
| Final Declaration | Full tax year | 31 January (following year) |
Total: 5 submissions per year (4 quarterly updates + 1 Final Declaration)
Security
& Privacy
Secure VAT Filing — MTD-Compliant & Industry-Standard Protection
Your financial information deserves nothing less than the highest level of protection. We employ enterprise-grade security measures trusted by leading financial institutions.
Fortified Protection
Safeguard your tax submissions with our cutting-edge security infrastructure. We utilise advanced 256-bit AES encryption, multi-layered authentication protocols, and continuous monitoring systems to ensure your sensitive financial data remains completely secure throughout the filing process.
256-bit AES Encryption
Tier 4 Data Centers
Multi-Factor Authentication
Annual Security Audits
Privacy by Design
Your personal information is never shared, sold, or monetised. We adhere strictly to UK GDPR regulations and employ zero-knowledge architecture, ensuring that your data remains exclusively under your control. Request complete data removal at any time through our dedicated privacy portal.
UK GDPR Compliant
UK-Only Data Storage
Zero Data Monetisation
Complete User Autonomy
Customers Reviews
Trusted by Thousands of UK Businesses Filing VAT Returns Online
Our 500+ businesses trust us with their tax filings. Here's what they have to say about our service.
1,000+
Happy Customers
4.9/5
Average Rating
£5k+
Taxes Filed
99.8%
Success Rate
Very impressed with the improvements. The VAT portal is faster and more intuitive now. A stress-free experience.
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MacKenzie Leach
Submitting VAT online saves me so much time. The system is user-friendly, and I appreciate the confirmation email.
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Harry Wilson
Much easier than I expected! Simple layout, clear instructions, and I got my submission done in minutes.
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William Taylor
The VAT submission portal is reliable and efficient. I had no problems, and everything was processed on time.
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James Smith
I really like how the system saves my progress. It’s easy to navigate, even if you’re not very technical.
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Amelia Collins
Very smooth process, everything is well explained, and the reminders are a big help. Submitting VAT has never been easier.
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Thomas Walker
Submitting my VAT return online was quick and straightforward. The system is clear, and I had confirmation instantly.
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Giacomo Peterson
Frequently Asked Questions
Frequently Asked Questions About Online VAT Filing & MTD Self Assessment
Find answers to the most common questions about our online tax filing service.
Is your software recognised by HMRC?
Yes. Our software is an HMRC-recognised MTD filing solution, allowing you to submit VAT returns and Self Assessment updates directly to HMRC through their official API.
Do I need to sign up for MTD with HMRC before filing?
Yes. Before submitting returns through our software, you must first sign up for MTD with HMRC and authorise our software to connect to your HMRC account via Government Gateway.
How secure is my personal information?
We use bank-level 256-bit SSL encryption and follow strict UK GDPR standards. All your data is stored securely in UK-only data centres and never shared with third parties.
Can agents use 11taxassist on behalf of clients?
Yes. Tax agents can use our HMRC-recognised platform to file both VAT returns and MTD quarterly updates plus Final Declarations on behalf of clients. Agents need an Agent Services Account (ASA) and must be authorised by their client through HMRC's digital handshake process.
Is 11taxassist a registered UK company?
Yes. 11taxassist Limited is a UK-registered company (Company Number: 16416027) registered with Companies House. Our registered office is at 6 Alexander Court, Baker Street, Reading, England, RG1 7XZ.
Do you offer a money-back guarantee?
Yes. If your return fails to submit to HMRC due to a fault on our software, we will refund your filing fee in full — no questions asked. Our 99.8% success rate speaks for itself.
What is Making Tax Digital (MTD) for VAT?
Making Tax Digital (MTD) for VAT is an HMRC initiative requiring VAT-registered businesses to keep digital VAT records and submit VAT returns using MTD-compatible software. It became mandatory for all VAT-registered businesses from April 2022, unless exempt.
How often do I need to file VAT returns?
Most VAT-registered businesses must submit quarterly VAT returns (4 times per year). Each quarterly return covers a 3-month period and must be submitted within one month and 7 days of the end of the quarter.
Who must follow the MTD for VAT rules?
All VAT-registered businesses must comply with MTD rules, regardless of turnover, unless they have an exemption approved by HMRC. New VAT-registered businesses are automatically enrolled. Those below the VAT threshold may opt in voluntarily.
What are the requirements for MTD-compatible VAT filing?
- Keep VAT records digitally using MTD-compatible software
- Submit VAT returns electronically via an API (not the HMRC portal)
- Maintain digital links between all data sources to avoid manual entry
- Preserve digital VAT records for at least six years
Can I upload my VAT data from a spreadsheet?
Yes. 11taxassist supports Excel spreadsheet upload for VAT returns. You can prepare your VAT figures in a spreadsheet and upload them directly into our platform. The software will validate the data and submit it to HMRC via the MTD API — maintaining a fully digital link.
How do I sign up for Making Tax Digital for VAT?
HMRC automatically signs up VAT-registered businesses for MTD unless exempt. To file VAT returns under MTD, you'll need a Government Gateway account and VAT registration number. Agents must use an Agent Services Account (ASA) to manage clients' VAT returns.
What is MTD for Self Assessment (MTD for ITSA)?
MTD for Income Tax Self Assessment is a new HMRC initiative requiring sole traders and landlords to keep digital records and submit quarterly updates of their income and expenses using MTD-compatible software, followed by a Final Declaration at year-end. It replaces the traditional annual Self Assessment return for those who qualify.
Who needs to use MTD for Self Assessment?
You'll need to use MTD for Income Tax if you are a sole trader or landlord registered for Self Assessment and your qualifying gross income from self-employment and/or property exceeds the threshold: over £50,000 from April 2026, over £30,000 from April 2027, and over £20,000 from April 2028. Partnerships will be included at a later date.
What counts as "qualifying income" for MTD?
Qualifying income is your combined gross income (turnover before expenses) from self-employment and property. This includes UK and overseas rental income. It does not include employment income, dividends, savings interest, or pension income.
How many submissions are required each year?
Under MTD for ITSA you must submit:
- 4 Quarterly Updates (summaries of income and expenses)
- 1 Final Declaration (replaces your annual Self Assessment return)
What is a Final Declaration?
The Final Declaration replaces the traditional Self Assessment tax return for MTD users. After all four quarterly updates, you confirm all income sources are complete and accurate, add any additional income (employment, dividends, etc.), claim allowances and reliefs, and finalise your tax position. It must be submitted by 31 January following the end of the tax year.
What are the quarterly update deadlines?
Q1 (6 Apr – 5 Jul): due 7 August
Q2 (6 Jul – 5 Oct): due 7 November
Q3 (6 Oct – 5 Jan): due 7 February
Q4 (6 Jan – 5 Apr): due 7 May
Final Declaration: due 31 January (following year)
Q2 (6 Jul – 5 Oct): due 7 November
Q3 (6 Oct – 5 Jan): due 7 February
Q4 (6 Jan – 5 Apr): due 7 May
Final Declaration: due 31 January (following year)
What are the penalties for missing MTD deadlines?
For 2026–27, HMRC will not apply late submission penalties for missing quarterly update deadlines (soft-landing period). However, penalties for late Final Declarations and late payments still apply from day one. From 2027–28, a points-based system applies: each missed deadline earns a penalty point, and after 4 points, a £200 fine per further missed deadline.
Am I exempt from MTD for Income Tax?
You may be exempt if you are digitally excluded (e.g. due to age, disability, or location without reliable internet). If exempt, you must still file Self Assessment in the traditional way. Check your eligibility using HMRC's online tool or contact HMRC directly.
What do I need to get started?
You'll need: a Government Gateway user ID and password, your National Insurance number, your Unique Taxpayer Reference (UTR), and details of your income sources. Register on 11taxassist, connect your HMRC account, and our software guides you through everything.
Do partnerships need to use MTD for Income Tax?
Not yet. HMRC has confirmed partnerships will be brought into MTD for Income Tax at a later date, but no timeline has been set. Currently only sole traders and landlords are required to comply.
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11taxassist Limited
14 Somerstown Court, Reading,
England, RG1 7TY.
Company number: 16416027
