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Making Tax Digital Penalties: How to Avoid HMRC Fines (2026 Guide)
HMRC’s penalty regime for Making Tax Digital (MTD) is tougher, more frequent, and far more expensive than the old self-assessment system. Miss one quarterly submission, file with the wrong software, copy-paste between Excel and your accounting tool, or pay your tax 31 days late, every one of these can trigger fines from £200 to £3,000 per failure.
This guide explains every MTD penalty in plain English: how the points system works, what triggers fines, and most importantly , how to avoid them or successfully appeal if you’ve already been hit. Written by ICAEW chartered accountants who defend UK taxpayers against HMRC penalties every week.
MTD Penalties at a Glance: What HMRC Can Fine You
Here’s the complete list of MTD penalties HMRC can impose, ranked from cheapest to most expensive:
Penalty Type | Amount | When It Applies |
|---|---|---|
Late submission penalty point | 0 (just a warning) | Each missed quarterly/annual submission |
Late submission financial penalty | £200 fine | At 4 points (quarterly) or 2 points (annual) |
Late payment penalty (16-30 days) | 3% of tax owed (4% from April 2027) | VAT or income tax paid 16+ days late |
Late payment penalty (31+ days) | Additional 3% (4% from April 2027) | Tax paid more than 30 days late |
Daily interest charge | 10% per annum daily | Tax remaining unpaid after 30 days |
Non-compatible software | £400 per return | Filing through paper/portal instead of MTD software |
Failure to keep digital records | Up to £3,000 per failure | Records not in MTD-compatible format |
No digital links between systems | Up to £3,000 per failure | Copy-pasting between software/spreadsheets |
Failure to notify chargeability | Up to 100% of tax due | Not registering when required |
Deliberate inaccuracy | Up to 100% of tax + criminal charges | Fraudulent or deliberate misreporting |
Real example: A landlord who misses 4 quarterly submissions in a year, pays VAT 31 days late on £8,000, and used non-compliant software could face: £200 + 6% × £8,000 (£480) + £400 × 4 (£1,600) = £2,280 in penalties on top of the tax owed. Compliance is dramatically cheaper than non-compliance.
MTD Late Submission Penalty Points System Explained
HMRC introduced a new “penalty points” system for MTD that works differently from the old £100 instant fine. Here’s how it works:
How Points Are Earned
Each time you miss a submission deadline, you earn 1 penalty point. Points only apply to the submission frequency you’re subject to:
Your Submission Frequency | Points Threshold for £200 Fine |
|---|---|
Quarterly (most MTD ITSA + standard VAT) | 4 points |
Monthly (some VAT businesses) | 5 points |
Annual (Annual VAT scheme) | 2 points |
How Points Expire
Points expire after 2 years (24 months) from the month after they’re issued, but ONLY if you submit all subsequent returns on time during that period. Miss another deadline and the clock resets.
Important: Separate Counts for Each Tax
MTD ITSA, VAT, and Corporation Tax all have SEPARATE penalty point counts. You can accumulate points in one without affecting another. Example:
- 3 MTD ITSA points + 2 MTD VAT points = both still below £200 threshold
- BUT: 4 MTD ITSA points (£200 fine) + 3 MTD VAT points = £200 fine on ITSA only
Strategy point: HMRC’s points system is more forgiving than the old £100 instant fine, you get “warning shots” before the £200 fine kicks in. But once you hit the threshold, EVERY subsequent missed submission triggers another £200 fine, not just the first one.
MTD Late Payment Penalties: How HMRC’s Tiered System Works
MTD late payment penalties are completely separate from late filing penalties. Even if you file on time, paying late triggers its own charges:
Days Late | Penalty Until April 2027 | Penalty From April 2027 |
|---|---|---|
1-15 days | No penalty (grace period) | No penalty |
16-30 days | 3% of unpaid tax (calculated at day 15) | 4% of unpaid tax |
31+ days (one-off) | Additional 3% of unpaid tax (calculated at day 30) | Additional 4% |
31+ days (daily interest) | 10% per annum daily interest | 10% per annum daily interest |
Real Calculation Example
Imagine you owe HMRC £10,000 in income tax and pay 45 days late:
- Days 1-15: No penalty
- Days 16-30: 3% × £10,000 = £300 penalty
- Day 31: Additional 3% × £10,000 = £300 penalty
- Days 31-45 (15 days): 10% annual ÷ 365 × 15 × £10,000 = £41 interest
- TOTAL: £641 penalty on top of the £10,000 owed
From April 2027: The same £10,000 paid 45 days late will cost you £841 in penalties (4% + 4% + interest). Late payment is becoming dramatically more expensive.
MTD Software & Digital Records Penalties (Up to £3,000 Each)
HMRC has a separate set of penalties for the technical side of MTD compliance — and these are the ones most businesses unknowingly incur.
Penalty 1: Filing Through Non-Compatible Software
If you file your VAT or income tax return through paper, email, or HMRC’s free online portal instead of MTD-approved software:
- Fine: £400 per non-compliant return
- Triggered every time you file the wrong way
- Many businesses don’t realise HMRC’s old online VAT portal is no longer compliant for MTD
Penalty 2: Failure to Keep Digital Records
All transactions must be captured in MTD-compatible digital software. Paper-only records or disconnected spreadsheets are non-compliant:
- Maximum penalty: Up to £3,000 per failure
- “Per failure” can mean per transaction, per record, or per accounting period
- Failure to digitise receipts at the time of transaction counts
Penalty 3: No Digital Links Between Software
If you use multiple tools (CRM + accounting software + VAT bridging), data must transfer digitally between them — no copying and pasting.
- Maximum penalty: Up to £3,000 per failure
- Most commonly broken rule in UK businesses
- Even “emailing a CSV file” counts as a digital link (legal)
- Copy-pasting numbers between Excel and accounting software does NOT (illegal)
Reality from practice: We see this penalty most often with VAT-registered businesses using Excel + accounting software combos. Many were compliant when they set up but broke the chain when they updated systems. An annual MTD audit catches these problems before HMRC does.
MTD Penalties Specific to UK Landlords
Landlords face the same MTD penalty regime as self-employed people, but with some specific risks:
Landlord-Specific Penalty Triggers
- Missing quarterly updates with multiple properties — each property’s data must be in the quarterly submission, not just totals
- Mortgage interest misclassification — claiming as expense instead of tax credit (Section 24) is now visible quarterly
- Overseas property omission — UK-resident landlords with foreign property must include it
- Joint owner discrepancies — if joint owners report different totals to HMRC, both can be penalised
- HMO complex tracking — failing to track per-tenant income digitally
Real Landlord Penalty Scenario
A 4-property landlord misses one quarterly submission (£0 fine — first point), but:
- Uses Excel without bridging software → £400 fine per quarter × 4 = £1,600/year
- Doesn’t digitise receipts for repairs → £3,000 risk per failure
- Pays the tax 35 days late → 3% + additional 3% + interest
- Misses second quarterly submission → still no fine (2 points)
- Misses third → still no fine (3 points)
- Misses fourth → £200 fine kicks in
Total worst-case in one year: £200 + £1,600 + £3,000 risk + 6% of tax owed — easily £5,000+ in penalties alone.
Read our complete MTD for Landlords guide for landlord-specific MTD compliance.
How to Avoid MTD Penalties: 10 Proven Tactics
Here are the exact tactics we use with our clients to keep their MTD penalty record clean:
1. Set Calendar Alerts 30 Days Before Each Deadline
Add all 4 quarterly deadlines + 31 January final declaration to your calendar with a 30-day advance reminder. Compound with weekly reminders for the final week.
2. Reconcile Monthly, Not Quarterly
Don’t wait until the quarter ends to organise receipts and bank transactions. Spend 1-2 hours per month — quarterly submission then becomes a 15-minute review, not a 3-day panic.
3. Submit 7 Days Early
Treat the deadline as 7 days earlier than it really is. This gives you buffer for technical issues, HMRC system outages (which happen), and last-minute corrections.
4. Use Truly MTD-Compatible Software
Don’t assume your software is compliant. Verify it’s on HMRC’s official list of approved MTD software. Popular safe choices: Xero, QuickBooks, Sage Business Cloud, FreeAgent, Zoho Books, IRIS.
See our complete MTD Software UK comparison.
5. Connect Your Bank to Your Accounting Software
Use open banking integration so transactions flow into your software automatically. This eliminates the “forgot to log a sale” risk.
6. Audit Your Digital Links Quarterly
Each quarter, check that data flowing between your CRM, invoicing tool, bridging software, and accounting platform isn’t broken. One snapped digital link = £3,000 exposure.
7. Pay HMRC on Time (Even If You File on Time)
Late filing AND late payment trigger SEPARATE penalties. Don’t assume filing on time = payment on time.
8. Keep a 90-Day Cash Reserve for Tax
The single biggest reason people pay late is cash flow. Build a tax reserve account so you can pay HMRC on time even if a client invoice is delayed.
9. Document Reasonable Excuses Immediately
If you genuinely couldn’t file/pay on time (illness, bereavement, HMRC system outage), document everything immediately: doctor’s notes, death certificates, HMRC error screenshots with timestamps. You can appeal penalties with proper evidence.
10. Outsource to a Chartered Accountant
The single most effective penalty-prevention measure is hiring an ICAEW chartered accountant to handle quarterly submissions for you. Our clients have a near-zero penalty rate because deadlines are tracked professionally.
How to Appeal a Making Tax Digital Penalty
If HMRC has already hit you with an MTD penalty, you can appeal in most cases. Here’s how:
Step 1: Check the Penalty Notice
HMRC will send a written penalty notice explaining the fine, reason, and how to appeal. Note the appeal deadline (usually 30 days from issue).
Step 2: Identify a “Reasonable Excuse”
HMRC accepts appeals where you can demonstrate a “reasonable excuse” for non-compliance. Accepted excuses include:
Serious illness — hospitalisation, mental health crisis, ongoing disability
Bereavement — close family member’s death just before deadline
HMRC system outage — gateway down, software unable to connect
Postal delays — if you were waiting for HMRC documents
Genuine technical issues — software malfunction (with screenshots)
Unexpected business disruption — burglary, fire, IT system theft
NOT accepted: “I forgot”, “I was too busy”, “My accountant let me down”, “I didn’t know the rules”, “The software was hard to use”, “I couldn’t afford the tax”.
Step 3: Gather Evidence
Strong appeals include:
Doctor’s notes / hospital discharge letters
Death certificates
Screenshots of HMRC errors WITH TIMESTAMPS
Police reports (for burglary/theft)
Software vendor confirmation of outages
Timeline showing what you did and when
Step 4: Submit Written Appeal
Submit your appeal in writing to HMRC within 30 days of the penalty notice. Include:
Your name, address, and UTR/VAT number
The penalty reference number
Clear statement of grounds for appeal
All supporting evidence
Date and signature
Step 5: Escalate if Refused
If HMRC refuses your appeal:
Request a HMRC internal review (free, fresh pair of eyes)
If still refused, appeal to the First-Tier Tax Tribunal (independent)
Consider professional representation from a chartered accountant
Chartered accountant advantage: HMRC tax tribunals take written submissions from ICAEW chartered firms more seriously. Many of our successful appeals are escalated to tribunal level — and we win the majority through proper documentation and case law citation.
Real Case Study: How We Got £7,000+ in HMRC Penalties Waived
A Milton Keynes-based sole trader with employment, self-employment, and rental income came to us facing an HMRC enquiry covering 5 years of returns. HMRC’s proposed assessment included:
- Additional tax liability: £8,000+
- Late payment penalties (multiple years)
- Penalty-on-penalty interest
- “Failure to take reasonable care” surcharges
Total HMRC liability over £15,000 — life-changing money for the client.
What we did:
- Forensically audited 5 years of returns to identify ALL allowable reliefs missed
- Identified overlooked tax reliefs that reduced his liability
- Built a formal case challenging HMRC’s penalty calculation
- Demonstrated “reasonable excuse” grounds where applicable
- Negotiated directly with HMRC’s enquiry team using case law
Outcome: All HMRC penalties and fines waived in full. Tax liability reduced by over £7,000. Total saving vs HMRC’s original assessment: over £14,000.
Read about our HMRC Investigation Support service if you’re facing an HMRC enquiry or penalty notice.
MTD Penalties: Frequently Asked Questions
What is the MTD penalty for late filing?
Each missed quarterly submission earns 1 penalty point. After 4 points (quarterly filers) or 2 points (annual), HMRC issues a £200 fine. Each subsequent missed submission triggers another £200 fine.
What is the MTD penalty for late payment?
1-15 days late: no penalty. 16-30 days: 3% of tax owed (4% from April 2027). 31+ days: additional 3% (4%) plus 10% annual daily interest.
Can I be fined for using the wrong software under MTD?
Yes. Filing through non-MTD-compatible software (paper, HMRC online portal, email) can trigger a £400 fine per return. Many UK businesses don’t realise the old HMRC online VAT portal is no longer compliant.
What is the £3,000 MTD penalty?
HMRC can fine up to £3,000 per failure for: (1) failing to keep digital records, or (2) failing to maintain digital links between systems (e.g., copy-pasting between Excel and accounting software).
Can MTD penalties be appealed?
Yes. If you have a “reasonable excuse” (serious illness, bereavement, HMRC system outage, software failure with evidence), you can appeal within 30 days of the penalty notice. Many appeals succeed with proper documentation.
Will MTD penalties affect my credit score?
Unpaid HMRC penalties don’t directly appear on your credit report — but if HMRC pursues collection through CCJs or debt collection agencies, those WILL affect your credit score.
How long do MTD penalty points stay on my record?
Points expire 24 months from the month after they’re issued — but only if you submit all subsequent returns on time during that period. Miss another deadline and the clock resets.
Are MTD penalties tax-deductible?
No. HMRC penalties and interest are NOT tax-deductible business expenses. You pay them out of post-tax income.
What if HMRC’s website is down on the deadline day?
HMRC has discretion to waive late filing penalties due to genuine system outages — but you must prove you tried to file on time. Take screenshots of error messages WITH TIMESTAMPS as evidence.
Can I be fined for an honest mistake on my MTD return?
If HMRC accepts you took “reasonable care,” a genuine error won’t trigger a deliberate inaccuracy penalty. However, you’ll still owe the correct tax + interest. “Careless” errors can attract penalties of 0-30% of the tax difference.
What’s the MTD penalty for landlords specifically?
Same regime as self-employed: £200 for repeated late submissions, 3-10% late payment, £400 per non-compliant return, up to £3,000 per digital records failure. Landlords are more exposed due to multiple properties and Section 24 complexity.
Do penalty points reset between MTD ITSA, VAT, and Corporation Tax?
Yes — each tax has SEPARATE penalty point counts. You can accumulate points in one without affecting another.
What happens if I don’t pay an MTD penalty?
HMRC will pursue collection: late payment interest on the penalty itself, debt collection agency involvement, County Court Judgment (CCJ), and ultimately enforcement action (asset seizure, bankruptcy).
Can I get a discount on MTD penalties for early disclosure?
Yes. If you proactively disclose an error to HMRC before they discover it, you can negotiate “prompted” or “unprompted” disclosure discounts of 10-100% of the penalty.
How can I check if I have outstanding MTD penalties?
Log into your HMRC Government Gateway account or check the post for penalty notices. Alternatively, your chartered accountant can check your HMRC record on your behalf.
Don’t Risk HMRC Penalties — Get MTD Compliance Right from Day One
Every MTD penalty is preventable. Every one. The businesses and landlords getting hit with £200, £400, £3,000+ fines are doing so because of incorrect software, missed deadlines, broken digital links, or assumed compliance — not because the rules are impossible to follow.
At MTD – Making Tax Digital (part of B1 Accountants), our ICAEW chartered accountants help UK taxpayers in two ways:
Prevention — Ongoing MTD Compliance Service
MTD software setup tailored to your business
Quarterly submissions managed for you — never miss a deadline
Quarterly digital links audit — no £3,000 surprises
Year-end Final Declaration with tax optimisation
Transparent monthly pricing
Defence — HMRC Penalty & Enquiry Support
Penalty appeal preparation
HMRC enquiry defence (5-year cases handled)
Tax tribunal representation
Disclosure negotiation for early-corrective cases
Book a free 30-minute MTD compliance call — we’ll review your situation, identify penalty risks, and give you a clear plan.
📞 BOOK YOUR FREE COMPLIANCE CALL →
Or call us directly: +44 (0) 75 079 66252
Bilal Chudher
(FCCA, FCA, TEP & MBA) Chartered Accountant
