Can You Claim Your National Insurance Back?
- MAZ
- 2 days ago
- 17 min read

The Audio Summary of the Key Points of the Article:
Can You Claim Your National Insurance Back in the UK? : Understanding National Insurance Refunds and Eligibility
So, you’re wondering if you can get some of your National Insurance contributions (NICs) back in the UK? The short answer is yes, but only in specific circumstances, and it’s not as simple as just asking for a refund because you fancy a bit of extra cash. National Insurance is a key part of the UK’s tax system, funding things like your State Pension and NHS services, but sometimes you might overpay or pay when you shouldn’t have. Let’s break it down, step by step, to see if you’re eligible and how it all works.
What Are National Insurance Contributions, Anyway?
Let’s start with the basics. National Insurance contributions are payments you make to HMRC, either as an employee, self-employed person, or voluntarily, to qualify for benefits like the State Pension, maternity allowance, and certain other social security perks. Think of it like a savings account for your future self, but one the government manages (and, let’s be honest, sometimes complicates). There are different classes of NICs depending on your work situation:
Class 1: Paid by employees through PAYE (Pay As You Earn) and by employers on your wages.
Class 2: Historically paid by self-employed people with low profits, but from 2024/25, these are no longer required, though you might be treated as having paid them for benefit eligibility.
Class 3: Voluntary contributions to fill gaps in your record, often for State Pension purposes.
Class 4: Paid by self-employed people with profits above a certain threshold (but these don’t count toward benefits).
Now, here’s the kicker: you can’t just claim a refund because you’ve changed your mind about paying NICs or stopped working. There need to be specific reasons, like overpayment or paying when you weren’t supposed to. Let’s dive into those reasons next.

When Can You Claim a National Insurance Refund?
Right, so when does HMRC owe you some of your NICs back? Overpaying happens more often than you’d think, especially if your work life is a bit messy—multiple jobs, self-employment, or working past pension age. Here are the main scenarios where you might be eligible for a refund:
Overpaid Class 1 NICs: If you have multiple jobs and your total earnings exceed the upper earnings limit (£50,270 for 2024/25 and 2025/26), you might pay too much because each employer deducts NICs independently. For example, if you earn £30,000 from one job and £25,000 from another, you’re over the limit, and HMRC doesn’t automatically adjust for this.
Working Past State Pension Age: Once you hit State Pension age (check yours at www.gov.uk/state-pension-age), you shouldn’t pay Class 1 NICs if employed or Class 4 if self-employed. If your employer keeps deducting them, you’re due a refund.
Employed and Self-Employed Simultaneously: If you’re juggling a PAYE job and self-employment, you might overpay by shelling out Class 1, Class 2, and Class 4 NICs. You can apply for a deferment or refund if the total exceeds what’s needed.
Non-UK Nationals on Short-Term Work: If you’re a non-UK national sent to the UK by a foreign employer (e.g., for a 52-week secondment), you might be eligible to reclaim Class 1 NICs paid in the first year.
Incorrect NIC Rates: Mistakes happen—maybe your employer used the wrong tax code, or you paid Class 4 NICs after reaching State Pension age. These errors can lead to refunds.
Be careful! You can’t claim a refund just because you’ve left the UK or stopped working partway through the tax year. HMRC is clear: stopping work doesn’t automatically mean you’re owed anything. Also, Class 4 NICs don’t count toward benefits, so overpaying them might not affect your pension but could still mean money back.

How Much Could You Be Owed? A Look at the Numbers
Now, let’s talk money. The amount you can claim back depends on how much you’ve overpaid and which class of NICs is involved. For 2025/26, here’s a quick look at the key NIC rates and thresholds to give you a sense of what’s at stake:
NIC Class | Who Pays | Rate/Threshold (2025/26) | Refundable? |
Class 1 (Employee) | Employees earning > £242/week | 8% on earnings between £12,570 and £50,270; 2% above £50,270 | Yes, if overpaid due to multiple jobs or post-pension age |
Class 1 (Employer) | Employers | 15% on earnings above £5,000 | No, employers claim separately via Employment Allowance |
Class 2 | Self-employed (treated as paid) | No longer payable; treated as paid if profits > £12,570 | Rarely, only if paid in error before 2024/25 |
Class 3 | Voluntary | £17.45/week | Yes, if paid unnecessarily |
Class 4 | Self-employed | 6% on profits between £12,570 and £50,270; 2% above | Yes, if overpaid or paid post-pension age |
Let’s say you’re earning £60,000 across two jobs (£35,000 and £25,000). Each employer deducts Class 1 NICs as if it’s your only job, so you might overpay by hundreds or even thousands over the year. For example, at 8% on earnings between £12,570 and £50,270, you’re looking at around £3,016 per job in NICs, but the cap for total Class 1 NICs should be around £3,496 for earnings above £50,270. Overpaying across two jobs could mean a refund of £500 or more, depending on your exact earnings.
Real-Life Example: Meet Priya’s Refund Journey
Now, consider this: Priya, a 45-year-old graphic designer from Bristol, has two part-time jobs—one as a PAYE employee earning £28,000 and another as a freelancer earning £30,000. In 2024/25, she paid Class 1 NICs on her employee job and Class 4 NICs on her self-employed profits. Her total income (£58,000) pushed her over the £50,270 threshold, and she didn’t apply for a deferment. After checking her National Insurance record online (via www.gov.uk/check-national-insurance-record), she realised she’d overpaid by £620 because her employers didn’t coordinate deductions. She contacted HMRC, provided her payroll details, and claimed a refund, which landed in her account within six weeks. Priya’s case shows how checking your record can save you a tidy sum.
Why HMRC Won’t Automatically Refund You
Here’s a bit of a shocker: HMRC doesn’t proactively check if you’ve overpaid NICs. It’s on you to spot the mistake and claim what’s yours. Why? Because overpayments are relatively rare, and HMRC’s systems aren’t designed to cross-check every taxpayer’s contributions automatically. This is especially true if you’ve got multiple income streams or unusual work patterns. So, if you suspect you’ve overpaid, you’ll need to take action—more on how to do that in the next Part.
Checking Your National Insurance Record
None of us loves dealing with HMRC’s website, but it’s your first stop to see if you’re due a refund. You can check your National Insurance record through your Personal Tax Account (www.gov.uk/personal-tax-account). This shows your contributions, credits, and any gaps. If you spot something odd—like contributions after State Pension age or excessive deductions from multiple jobs—you’re likely onto something. You’ll need your Government Gateway ID to log in, so set one up if you haven’t already. If you’re not tech-savvy, you can call HMRC’s National Insurance helpline (0300 200 3500) or write to them, but online is faster.
Special Case: Non-UK Nationals and Refunds
Now, if you’re not a UK national, things get a bit trickier. If you were sent to the UK by a foreign employer (say, a German company sent you for a year-long project), you might be able to reclaim Class 1 NICs for the first 52 weeks of work. This applies to specific arrangements under EU or bilateral agreements, but only if you’re not staying permanently. For example, Hans, a Dutch engineer, worked in London for 10 months in 2024 and paid £1,200 in Class 1 NICs. His employer wasn’t UK-based, so he applied for a refund via HMRC’s Direct Payment Scheme and got most of it back. Check www.gov.uk/national-insurance-foreign-employees for details if this sounds like you.
National Insurance Refund Eligibility Table
Scenario | NIC Class | Eligibility Criteria | Action Needed |
Multiple Jobs | Class 1 | Total earnings > £50,270 | Check record, apply via GOV.UK |
Post-State Pension Age | Class 1, Class 4 | Contributions paid after pension age | Provide proof of age to employer or HMRC |
Employed + Self-Employed | Class 1, Class 4 | Overpaid due to combined contributions | Apply for deferment or refund |
Non-UK National | Class 1 | Sent by foreign employer for <52 weeks | Apply via Direct Payment Scheme |
Incorrect Rate | Any | Employer error or wrong tax code | Contact HMRC with evidence |
Step-by-Step Guides for Claiming Back Different Types of National Insurance in the UK
So, you’ve figured out you might be due a National Insurance (NI) refund—nice one! Now comes the part where you actually get that money back. Claiming a refund isn’t as daunting as it sounds, but it does require some legwork and knowing which path to take depending on the type of NI you’ve overpaid. Whether it’s Class 1, Class 3, or Class 4 contributions, I’ve got you covered with clear, actionable steps to navigate HMRC’s processes. Let’s break it down by NI class, with practical tips and examples to make sure you don’t miss a trick.
Step-by-Step Guide: Claiming Back Class 1 National Insurance (Employees)
Let’s kick off with Class 1 NI, which most of you pay through your employer’s PAYE system. Overpayments often happen if you’ve got multiple jobs or if your employer keeps deducting NI after you hit State Pension age. Here’s how to claim it back:
Step 1: Check Your National Insurance Record
First things first, log into your Personal Tax Account at www.gov.uk/personal-tax-account to review your NI contributions. Look for any oddities, like contributions past State Pension age or excessive deductions from multiple jobs. You’ll need your Government Gateway ID—set one up if you don’t have it. If you’re not online-savvy, call HMRC’s NI helpline at 0300 200 3500.
Step 2: Gather Your Evidence
You’ll need documents like your P60 (end-of-year tax summary) or payslips to prove overpayment. For example, if you earned £60,000 across two jobs (£35,000 and £25,000) in 2024/25, each employer might have deducted Class 1 NI as if it’s your only job, leading to overpayment above the £50,270 upper earnings limit.
Step 3: Contact Your Employer First
If the overpayment is recent (within the current tax year), your employer might fix it by adjusting your payroll. For instance, Ewan, a teacher from Glasgow with a second job as a tutor, noticed his payslips showed £800 in excess NI deductions. He contacted his main employer, who corrected it within two months.
Step 4: Apply to HMRC if Needed
If your employer can’t help or the overpayment spans multiple years, use HMRC’s online tool at www.gov.uk/claim-national-insurance-refunded to start your claim. Select “Class 1” and provide details like your NI number, tax years affected, and reasons for overpayment (e.g., multiple jobs). You can also write to HMRC at PT Operations North East England, HM Revenue and Customs, BX9 1AN. Include your payslips or P60s. There’s no strict deadline for Class 1 refunds due to multiple jobs, but don’t dawdle—six years is the practical limit for most claims.
Step 5: Wait for Processing
HMRC typically processes refunds within 6–8 weeks, sending a cheque or bank transfer (if you provide bank details). Ewan got £750 back after applying in March 2025, just in time for a summer holiday.
Pro Tip: If you’re over State Pension age, you’ll need to show proof of age (like a birth certificate) to your employer or HMRC to stop Class 1 deductions and claim any overpaid amounts.
Step-by-Step Guide: Claiming Back Class 3 National Insurance (Voluntary Contributions)
Class 3 NI is what you pay voluntarily to fill gaps in your NI record, usually for State Pension eligibility. But what if you paid when you didn’t need to? Maybe you already had enough qualifying years (35 for the full State Pension). Here’s how to get it back.
Step 1: Verify Your State Pension Eligibility
Check your NI record at www.gov.uk/check-national-insurance-record to see if you have 35 qualifying years (or fewer if you were contracted out pre-2016). If you’ve paid Class 3 NI unnecessarily, you’re likely eligible for a refund. For example, Saira, a 62-year-old from Leeds, paid £1,500 in Class 3 contributions in 2023/24, not realising she already had 36 qualifying years.
Step 2: Contact the Future Pension Centre
Call the Future Pension Centre at 0800 731 0175 (if under State Pension age) or the Pension Service at 0800 731 7898 (if over). Explain that you’ve overpaid Class 3 contributions. You’ll need your NI number and details of payments, which you can find in your bank statements or HMRC correspondence.
Step 3: Submit a Refund Request
HMRC may ask you to write to them at the same BX9 1AN address, specifying the tax years and amounts paid. Include bank statements or payment receipts. There’s no time limit for Class 3 refunds, but you’ll need to prove the payments were unnecessary.
Step 4: Expect a Response
Refunds take about 6–12 weeks. Saira received £1,400 back after HMRC confirmed she didn’t need the extra contributions. If you’re unsure about qualifying years, ask the Future Pension Centre for a State Pension forecast before paying Class 3 NI to avoid this hassle.
Be Careful! Voluntary contributions are usually non-refundable unless you can prove they were unnecessary, so double-check your NI record before paying.
Step-by-Step Guide: Claiming Back Class 4 National Insurance (Self-Employed)
Class 4 NI applies to self-employed people with profits above £12,570 (2025/26 threshold). Overpayments can happen if you’re also paying Class 1 NI or if you paid Class 4 after State Pension age. Here’s the process:
Step 1: Review Your Self-Assessment
Check your Self-Assessment tax return for the tax years in question. If you’re self-employed and employed, you might have overpaid Class 4 NI because HMRC doesn’t automatically adjust for combined contributions. For instance, Idris, a Manchester-based plumber earning £40,000 self-employed and £20,000 as a part-time employee, overpaid £400 in Class 4 NI in 2024/25.
Step 2: Apply for a Deferment (Optional)
If you’re still working, apply for a deferment to reduce Class 4 NI by contacting HMRC’s Deferment Services Helpline at 03000 560631. This prevents overpayment in future years.
Step 3: Complete Form CA5610
For past overpayments, download Form CA5610 from www.gov.uk/government/publications/national-insurance-application-for-refunded-of-class-4-contributions-ca5610. Fill in details about your profits, Class 1 contributions, and tax years. You can claim back up to five years from the tax year of overpayment (e.g., until 31 January 2030 for 2024/25).
Step 4: Submit and Follow Up
Send the form to HMRC at the BX9 1AN address. Idris submitted his CA5610 in February 2025 and got £400 back by April. HMRC may ask for additional proof, like your Self-Assessment records or P60s.
Pro Tip: You must apply after 1 February of the following tax year for Class 4 refunds, so mark your calendar.
Step-by-Step Guide: Non-UK Nationals and Class 1 Refunds
If you’re a non-UK national sent to the UK by a foreign employer for less than 52 weeks, you might not need to pay Class 1 NI, thanks to EU or bilateral social security agreements. Here’s how to reclaim it:
Step 1: Confirm Your Eligibility
Check if your home country has a social security agreement with the UK (see www.gov.uk/national-insurance-foreign-employees). You’ll need a certificate like a Portable Document A1 (for EU/EEA countries) or equivalent from your home country’s social security office.
Step 2: Gather Documentation
You’ll need your payslips, P60, and the certificate proving you’re covered by your home country’s social security. For example, Sofia, a Spanish consultant sent to London for 10 months in 2024, paid £1,000 in Class 1 NI but had an A1 certificate.
Step 3: Apply via the Direct Payment Scheme
Write to HMRC at BX9 1AN, including your NI number, the tax year, and your certificate. There’s no specific form, so clearly state you’re claiming under a social security agreement. Sofia got £900 back after submitting her A1 certificate and payslips.
Step 4: Processing Time
Expect 8–12 weeks for HMRC to process. If you’re still in the UK, your employer might refund you directly if they’re part of the scheme.
So the Question Is: Why not check your NI record today? It’s free, and you might spot an overpayment you didn’t know about. Part 3 will wrap up with a summary of the key points to keep in your back pocket.
Step-by-Step Guide for National Insurance Refunds - A Summary
Class 1 NI (Employees)
Check Record: Log into www.gov.uk/personal-tax-account to review contributions.
Gather Evidence: Collect P60s or payslips showing overpayment.
Contact Employer: Ask your employer to adjust payroll for current-year overpayments.
Apply to HMRC: Use www.gov.uk/claim-national-insurance-refunded or write to BX9 1AN.
Wait: Expect a refund in 6–8 weeks.
Class 3 NI (Voluntary)
Verify Eligibility: Check www.gov.uk/check-national-insurance-record for excess contributions.
Contact HMRC: Call 0800 731 0175 (under pension age) or 0800 731 7898 (over).
Submit Request: Write to BX9 1AN with payment details.
Wait: Refunds take 6–12 weeks.
Class 4 NI (Self-Employed)
Review Self-Assessment: Check tax returns for overpaid Class 4 NI.
Consider Deferment: Call 03000 560631 to reduce future payments.
Complete CA5610: Download and submit Form CA5610 to BX9 1AN.
Wait: Refunds arrive in 6–12 weeks.
Non-UK Nationals (Class 1)
Confirm Eligibility: Verify social security agreement at www.gov.uk/national-insurance-foreign-employees.
Gather Documents: Collect payslips, P60, and A1 certificate.
Apply: Write to BX9 1AN with details and certificate.
Wait: Processing takes 8–12 weeks.

Key Takeaways for Claiming Your National Insurance Back in the UK
So, you’ve made it through the ins and outs of National Insurance refunds—well done for sticking with it! Now it’s time to wrap things up with a clear, concise summary of the most critical points to help you or your business get what’s owed. Whether you’re a taxpayer juggling multiple jobs or a business owner navigating self-employment, these takeaways will keep you on track. Below are the 10 most important points, each distilled into a single sentence for easy reference.
Summary of the Most Important Points
You can claim a National Insurance refund if you’ve overpaid Class 1, Class 3, or Class 4 contributions due to multiple jobs, errors, or paying past State Pension age.
Class 1 National Insurance overpayments often occur when your total earnings from multiple jobs exceed the upper earnings limit of £50,270 in the 2025/26 tax year.
If you’re over State Pension age, you shouldn’t pay Class 1 or Class 4 contributions, and any deductions made are refundable with proof of age.
Self-employed individuals who also have a PAYE job may overpay Class 4 contributions and can apply for a deferment or refund using Form CA5610.
Non-UK nationals sent to the UK for less than 52 weeks by a foreign employer can reclaim Class 1 contributions under specific social security agreements, like those requiring a Portable Document A1.
Checking your National Insurance record at www.gov.uk/check-national-insurance-record is the first step to spotting overpayments or unnecessary contributions.
HMRC doesn’t automatically refund overpaid National Insurance, so you must proactively check and apply for what’s owed.
For Class 1 refunds, gather evidence like P60s or payslips and contact your employer or HMRC via www.gov.uk/claim-national-insurance-refunded.
Class 3 voluntary contributions are refundable if you paid them unnecessarily, such as when you already have 35 qualifying years for your State Pension.
Refunds typically take 6–12 weeks to process, and claims for Class 4 contributions must be made after 1 February of the following tax year.

Final Thoughts for Taxpayers and Business Owners
Now, let’s wrap this up with a bit of practical wisdom. The key to getting your National Insurance back is staying proactive—check your record regularly, keep your paperwork in order, and don’t be afraid to reach out to HMRC if something looks off. Whether you’re an employee like Priya, juggling two jobs, or a self-employed business owner like Idris, a little diligence can put hundreds or even thousands of pounds back in your pocket. And if you’re a non-UK national like Sofia, knowing your rights under international agreements can make all the difference. Keep these points handy, and you’ll be well-equipped to tackle any NI refund situation that comes your way.
FAQs
1. Q: Can you claim National Insurance back if you’ve moved abroad permanently?
A: If you’ve left the UK permanently, you generally cannot claim a refund of National Insurance contributions unless you overpaid due to specific circumstances, like working temporarily in the UK as a non-UK national under a social security agreement.
2. Q: Does claiming a National Insurance refund affect your State Pension eligibility?
A: Claiming a refund for overpaid contributions won’t impact your State Pension if you still have the required qualifying years, but you should verify your record to ensure you maintain at least 10 years for any pension entitlement.
3. Q: Can you get a National Insurance refund if you’re unemployed for part of the tax year?
A: Being unemployed doesn’t automatically qualify you for a refund, but you may be eligible if you overpaid due to incorrect deductions during employment, such as an emergency tax code applied mistakenly.
4. Q: What happens if you miss the deadline for claiming a National Insurance refund?
A: There’s no strict deadline for most Class 1 or Class 3 refunds, but Class 4 refunds must be claimed within five years from the end of the tax year, or you risk losing the overpaid amount.
5. Q: Can you claim National Insurance back if you were on an emergency tax code?
A: If an emergency tax code caused excessive National Insurance deductions, you can claim a refund by providing evidence like payslips to HMRC, who will adjust your contributions accordingly.
6. Q: Are National Insurance refunds taxable?
A: No, National Insurance refunds are not subject to income tax as they represent a return of overpaid contributions, not taxable income.
7. Q: Can you claim National Insurance back if you’re a student working part-time?
A: Students can claim a refund if they overpaid National Insurance, such as when earnings from multiple part-time jobs exceed the upper earnings limit or if contributions were deducted after reaching State Pension age.
8. Q: What documents do you need to claim a National Insurance refund for a deceased person?
A: To claim a refund for a deceased person, you’ll need their death certificate, NI number, and proof of overpayment (like P60s), submitted by the executor to HMRC at BX9 1AN.
9. Q: Can you claim National Insurance back if you’re self-employed but below the Small Profits Threshold?
A: If your profits are below £12,570 in 2025/26 and you paid Class 2 contributions in error before their abolition, you can claim a refund by contacting HMRC with your Self-Assessment records.
10. Q: How does National Insurance overpayment affect your tax return?
A: Overpaid National Insurance doesn’t directly affect your income tax return, but you may need to amend your Self-Assessment if claiming a Class 4 refund to reflect corrected contributions.
11. Q: Can you claim National Insurance back if you’re a contractor under IR35?
A: If you’re a contractor under IR35 and overpaid Class 1 National Insurance through deemed employment, you can claim a refund by verifying contributions against the upper earnings limit via HMRC.
12. Q: What is the process for appealing a rejected National Insurance refund claim?
A: If HMRC rejects your refund claim, you can request a review by writing to them within 30 days, providing additional evidence, or escalate to a tribunal if the issue persists.
13. Q: Can you claim National Insurance back if you worked in the UK as a volunteer?
A: Volunteers typically don’t pay National Insurance unless incorrectly classified as employees, in which case you can claim a refund by proving the error with contract details or payslips.
14. Q: How does Brexit affect National Insurance refunds for EU nationals working in the UK?
A: Post-Brexit, EU nationals can still claim refunds under social security agreements if working temporarily (less than 52 weeks), but you’ll need an A1 certificate or equivalent from your home country.
15. Q: Can you claim National Insurance back if you’re in the armed forces?
A: Armed forces personnel may overpay National Insurance due to unique pay structures, and you can claim a refund by providing service records and payslips to HMRC for verification.
16. Q: Does overpaying National Insurance affect your Universal Credit payments?
A: Overpaid National Insurance doesn’t directly impact Universal Credit, but a refund could be considered capital, potentially affecting your eligibility if it pushes your savings above £6,000.
17. Q: Can you claim National Insurance back if you were paid through a personal service company?
A: If your personal service company incorrectly deducted National Insurance as if you were an employee, you can claim a refund by submitting company payroll records to HMRC for review.
18. Q: What are the tax implications of receiving a large National Insurance refund?
A: A large National Insurance refund is not taxable, but you should report it to HMRC if it affects other tax calculations, like Self-Assessment adjustments for self-employed individuals.
19. Q: Can you claim National Insurance back if you’re on maternity leave?
A: If you overpaid National Insurance during maternity leave due to incorrect deductions (e.g., above the upper earnings limit), you can claim a refund using payslips and maternity pay records.
20. Q: How do you know if your National Insurance refund has been processed correctly?
A: After receiving your refund, check your updated National Insurance record online at www.gov.uk/check-national-insurance-record to confirm the correct contributions and refund amount.
About the Author

Mr. Maz Zaheer, FCA, AFA, MAAT, MBA, is the CEO and Chief Accountant of My Tax Accountant and Total Tax Accountants—two of the UK’s leading tax advisory firms. With over 14 years of hands-on experience in UK taxation, Maz is a seasoned expert in advising individuals, SMEs, and corporations on complex tax matters. A Fellow Chartered Accountant and a prolific tax writer, he is widely respected for simplifying intricate tax concepts through his popular articles. His professional insights empower UK taxpayers to navigate their financial obligations with clarity and confidence.
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