HMRC Payment NIERS Explained | How Employers Pay National Insurance?

While making payments to HM Revenue and Customs (HMRC), it is important to ensure you understand your tax obligations and tax-related terms. One term that often confuses UK taxpayers is HMRC payment NIERS. 

You need to understand what NIERS (National Insurance Employer’s contributions) on a payslip is and how it works to ensure your payments are correctly processed and allocated. Remember, even a small mistake in your reference number can lead to delays or penalties.  This blog explains NIERS in detail, why it matters, and the procedure to calculate it correctly.

What is HMRC Payment NIERS on Payslip?

So, what is NIERS on payslip? NIERS is commonly used in payroll systems to refer to employer National Insurance contributions (Class 1 secondary NICs) and the associated HMRC payment reference.

HMRC uses this payment reference to track employers’ contributions and related payments.

In practice, it relates to Class 1 Secondary National Insurance contributions paid by employers. Employers pay secondary National Insurance Contributions (NIC) when an employee’s income exceeds a specific threshold.

Why is NIERS on the Payslip?

On a UK payslip, there is ‘HMRC payment NIERS’ to reflect employer National Insurance contributions associated with your earnings

NIERS on the payslip is included for transparency and calculation purposes within the system run by HMRC. It ensures:

• NICs are recorded accurately
• Payments are allocated to the employer account
• Outstanding liabilities are updated promptly

Without using the correct HMRC payment NIERS, your payment may not be assigned correctly, leading to unnecessary complications.

How is NIERS Calculated?

NIERS is generally calculated as 15% on earnings above a specific weekly threshold (effective from April, 2025). Most umbrella companies in the UK use automated payroll software for this calculation.

Procedure to Calculate HMRC Payment NIERS

Here are the steps you need to follow to calculate NIERS.

• Start with your gross weekly pay and determine earnings.
• Then subtract the weekly secondary threshold (£96 weekly / £5,000 annually) from gross pay
• And lastly, multiply the remaining amount by the current NIERS rate (15%)

Let’s take an example of an employee who earns £200 per week.

Gross Pay: £200

Subtract Threshold: £200 – £96 = £104

Multiply by 15%: £104

0.15 = £15.60

Disclaimer: (thresholds may change each tax year)

Why HMRC Payment NIERS Matters?

NIERS matters as it determines the legal obligation of employers to pay a 15% tax on employee income above a certain threshold. It is not a double deduction but a legal requirement.

Using the correct HMRC payment NIERS is important for many reasons:

Legal Compliance

NIERS on the payslip ensures that employers meet their legal requirements set by HMRC. HMRC requires that all employer payments be submitted on time with the correct reference.

If you use the wrong HMRC payment NIERS or exclude it, your payment may not match the HMRC system. And when this happens, HMRC could treat it as unpaid.

Accurate Payment Allocation

HMRC gets millions of payments each year. NIERS on the payslip ensure your payment is matched to the right record without manual intervention.

Streamlined Record-Keeping

Employers need to maintain accurate National Insurance records. NIERS helps keep everything traceable and organised.

Avoiding Penalties

Missing or incorrect references can delay the process. This may result in late-payment penalties if you paid on time.

I’m Paid via An Umbrella Company – Is NIERS Applicable?

Yes, NIERS applies to umbrella arrangements. When you join an umbrella company, it becomes your legal employer, and it must fulfil PAYE and NI obligations to HMRC. This is to remain compliant with the UK laws.

However, you should understand that an umbrella company handles ‘HMRC payment NIERS’ entirely and is not managed by the employee. So, if you are an employee, you don’t need to worry about the NIC.

Moved to Umbrella Provider – Have your Rates Increased?

Many contractors notice differences in pay when they move from an agency payroll to an umbrella company. This is because of the assignment rate, agreed between an umbrella company and agency.

This rate includes:

• Employer NIC
• Employer workplace pension contribution
• Umbrella company operating costs
• Holiday pay
• Other statutory charges

These costs are deducted before calculating your taxable gross pay. The remaining amount is processed through PAYE, where NI and Income Tax are applied.

Therefore, the assignment rate is not the same as take-home pay. Also, compare the rates based on gross taxable pay rather than the assignment rate. If anything is still unclear, you can ask your umbrella company to explain it.

To know more about working through an umbrella, visit the official HMRC website.

How to Find HMRC Payment NIERS?

You can find your payment NIERS on:

• Your employer’s PAYE account
• HMRC correspondence
• Online HMRC services

The best way to find your payment reference is to log in to your HMRC online account. If you are facing trouble finding it, it is recommended to contact HMRC directly and confirm the correct reference before making a payment.

Why Do High Earners Only Pay 2% NI?

The NI system uses income bands, where you pay a standard rate 8% on middle earnings and a lower rate 2% on everything above the Upper Earnings Limit (UEL).

High earners pay 2% NI only on income above the UEL because they have already covered their required contribution for state benefits.

Rate and Allowances: NIC

HMRC divides employee NI Class 1 into three distinct bands. If your earnings are below £242 per week, you pay 0%. However, you can still gain credits for your state pension.

If your income is between £242 and £967 per week, then you pay the standard 8% primary rate. And if your earnings are more than £967 per week, you pay the additional rate of 2%.

How to Use HMRC Payment NIERS Properly?

To use NIERS correctly, you must ensure it matches the correct tax period the payment covers.

When you are making a payment to HMRC, ensure you follow these steps:

• Double-check your NIERS reference
• Enter the reference exactly as provided
• Use an appropriate payment method
• Keep transaction records

Does HMRC Automatically Refund Overpaid NI?

No, HMRC does not always automatically refund overpaid NI. Although HMRC does end-of-year reconciliation, you need to claim a refund if you have overpaid NI due to changing jobs, multiple jobs, or incorrect deductions.

If you have overpaid or paid little tax, HMRC will send you either a simple assessment letter or a tax calculation letter (also known as a P800). This will guide you on how you can get a refund.

However, if you are self-employed and have overpaid, you will be adjusted automatically by HMRC. You will not get a simple assessment letter or a tax calculation letter.

Common Mistakes To Avoid

Here are some common mistakes that many taxpayers often run into:

• Enter the incorrect reference
• Use outdated HMRC payment NIERS
• Confuse NIERS with other HMRC references
• Forgot to include the reference

The Bottom Line

Using the correct HMRC payment NIERS is important for UK taxpayers. This helps ensure your payments are allocated correctly and reduces any unnecessary processing delays. NIERS ensures your payments are processed efficiently and keeps your tax records accurate with HMRC. Whether you are managing payroll or a business owner, pay close attention to your NIERS to reduce the risk of penalties. Remember to verify your reference before making a payment.

If you need help to manage your NICs, we have got you covered. At AccountingFirms, you can find the best accountants suitable for your business. Through our easy-to-use platform, you can hand-pick verified accountants and receive the services you want.

Disclaimer: All the information provided in this article on HMRC payment NIERS, including all the texts and graphics, is general in nature. It does not intend to disregard any of the professional advice.