Have You Overpaid NI Across Multiple Jobs?
Each employer deducts employee NIC independently. If your combined earnings from multiple jobs exceed the Upper Earnings Limit (£50,270), you may have overpaid NIC.
Frequently Asked Questions
Each employer calculates employee NIC independently, applying the full primary threshold (£12,570). If your combined earnings exceed the Upper Earnings Limit (£50,270), you may pay 8% on earnings that should only attract 2%.
It depends on your earnings split. If you earn £30,000 in Job 1 and £25,000 in Job 2, each employer applies 8% NIC up to their respective UEL — but on a combined basis, the top £4,730 (£55,000-£50,270) should only attract 2%.
File a self-assessment tax return and include all employment income. HMRC will review the NIC paid across all employers and issue a refund if you've overpaid.
Write to HMRC with details of your employment income from each employer. Include your NI number, all employer names, and earnings. HMRC can issue a refund without a self-assessment return in straightforward cases.
Income tax is also potentially affected — each employer will apply the personal allowance independently if you haven't notified them of a second job. A 'BR' or 'D0' code should be applied to secondary employment to prevent under-payment.
Basic Rate — all income from that employer is taxed at 20% with no personal allowance applied. This prevents double-claiming of personal allowance across multiple jobs.
No. Employee NIC thresholds cannot be split or allocated between employers. Each employer always applies the full primary threshold. The overpayment can only be reclaimed after the tax year ends.
No. Employer NIC is entirely separate — there's no mechanism for employer NIC overpayment from having multiple employees at the same employee. Each employer pays their employer NIC independently.
You generally have 4 years from the end of the relevant tax year to claim a NIC refund. So for 2021/22 overpayments, the deadline would be April 2026.
2% on earnings above £50,270 (UEL). Below the UEL but above the primary threshold (£12,570), 8% applies. These are 2025/26 rates.
Class 2 NIC (for self-employed) is separate from Class 1 (employed). If you're both employed and self-employed, NIC is calculated separately and separately assessed for overpayment.
No. Your employer has no knowledge of other employment (unless you tell them). They must apply PAYE and NIC independently based on your earnings with them.