Paying tax late can lead to serious financial consequences for businesses and individuals alike. HMRC imposes interest charges and penalties for late payments across various tax types, including VAT, PAYE, Corporation Tax, and Self Assessment. Here’s what you need to know in 2025.
🔍 1. What Is Late Payment Interest?
HMRC charges interest on overdue tax from the day after payment is due until the day it is paid. This is known as late payment interest and applies to:
- VAT
- PAYE/NIC
- Corporation Tax
- Self Assessment Income Tax
- Capital Gains Tax
- Inheritance Tax
Current Late Payment Interest Rate (as of 2025):
- 8.5% per annum (Bank of England base rate + 2.5%)
Note: Interest is calculated daily, so the longer the delay, the higher the cost.
⚠️ 2. Penalties for Late Payment
Penalties differ depending on the tax type. Here’s a breakdown:
Self Assessment (Income Tax)
- 30 days late: 5% of unpaid tax
- 6 months late: Additional 5%
- 12 months late: Another 5%
VAT
- New points-based penalty system (introduced 2023):
- 1 point per late submission
- £200 penalty after reaching threshold (e.g. 4 points for quarterly VAT)
- Additional penalties for late payment:
- 1–15 days late: No penalty (if paid or arranged)
- 16–30 days late: 2% of tax owed
- 31+ days late: 2% + daily interest (up to 4%)
PAYE
- Penalties based on the number of defaults in a year:
- 1st late payment: No penalty
- 2nd to 4th: 1%
- 5th to 7th: 2%
- 8th to 10th: 3%
- 11 or more: 4%
📆 3. When Do Penalties Apply?
Penalties typically apply after specific timeframes (e.g. 30 days for Self Assessment). HMRC may also charge penalties for inaccurate returns, deliberate understatements, or failure to notify of tax liability.
💡 4. Can You Appeal HMRC Penalties?
Yes – you can appeal if you have a reasonable excuse, such as:
- Serious illness
- Bereavement
- HMRC error
Appeals must be made in writing or online within 30 days of receiving the penalty notice.
📋 5. How to Avoid Late Payment Interest & Penalties
- Set up Direct Debit or reminders for payment deadlines
- Submit returns and payments on time
- Work with your accountant to forecast cashflow
- Use Time to Pay arrangements with HMRC if struggling
How Eclat Accountancy Can Help
We support our clients by:
- Monitoring tax deadlines
- Ensuring timely submissions and payments
- Negotiating with HMRC on your behalf
- Advising on penalty appeals and interest mitigation
Final Thoughts
Late payment penalties and interest from HMRC can quickly add up and strain your cashflow. Staying organised and proactive is key. Let Eclat Accountancy help you avoid costly mistakes and stay ahead of every HMRC deadline.
Contact us today for timely tax support tailored to your business needs.
