Class 1A NIC Deadline: What Employers Need to Know Before 19 & 22 July 2026
As the tax year-end reporting season draws to a close, employers should be aware of an important compliance deadline in July: the payment of Class 1A National Insurance Contributions (NICs).
For the 2025/26 tax year, Class 1A NIC payments must reach HMRC by:
19 July 2026 if paying by post or cheque.
22 July 2026 if paying electronically.
Missing these deadlines can result in interest charges and potential penalties, making it essential for businesses to review their obligations well in advance.
What Are Class 1A NICs?
Class 1A National Insurance Contributions are paid by employers on most taxable employee benefits, commonly referred to as Benefits in Kind (BiKs). Unlike regular National Insurance contributions, Class 1A NICs are paid solely by the employer and are calculated based on the value of benefits provided during the tax year.
Examples of benefits that may attract Class 1A NICs include:
Company cars and fuel benefits
Private medical insurance
Beneficial loans
Living accommodation
Certain non-cash employee perks and benefits
Because these benefits can vary significantly between businesses, it's important to ensure all taxable benefits have been identified and reported correctly.
The Importance of Accurate Reporting
Before making a Class 1A NIC payment, employers must ensure that their P11D and P11D(b) forms have been completed accurately.
The P11D details the benefits provided to employees, while the P11D(b) summarises the employer's total Class 1A NIC liability. Errors or omissions can lead to underpayments, overpayments, or unwanted attention from HMRC.
Businesses should review their records carefully to ensure:
All employee benefits have been captured.
Benefit values have been calculated correctly.
Any payroll adjustments have been accounted for.
Supporting documentation is available if requested by HMRC.
Common Mistakes Employers Make
Many businesses encounter issues because they:
Forget to include certain benefits.
Miscalculate benefit values.
Miss the filing deadline for P11D forms.
Leave payment arrangements until the last minute.
Fail to reconcile payroll records with benefits reporting.
These seemingly small mistakes can create significant administrative burdens and lead to additional costs later.
Why Planning Ahead Matters
July is often a busy period for finance and payroll teams. By preparing early, businesses can:
Avoid last-minute stress.
Ensure payments clear on time.
Reduce the risk of penalties and interest.
Have time to correct any reporting errors before deadlines pass.
Good record-keeping throughout the year can make the process much smoother and help businesses remain fully compliant with HMRC requirements.
How JSB Accountants Can Help
Managing employee benefits, P11D reporting and Class 1A NIC calculations can be time-consuming, particularly for growing businesses with complex payroll arrangements.
At JSB Accountants, we work closely with employers to ensure all reporting requirements are met accurately and on time. Our team can assist with:
P11D and P11D(b) preparation and submission.
Class 1A NIC calculations.
Payroll and benefits compliance reviews.
HMRC correspondence and queries.
Ongoing payroll and accounting support.
Whether you're a small business owner, a growing company, or an established employer, we can help simplify the process and provide peace of mind that your obligations have been handled correctly.
Don't Leave It Until the Last Minute
With the Class 1A NIC payment deadlines of 19 July (postal payments) and 22 July (electronic payments) approaching, now is the ideal time to review your records and ensure everything is in order.
If you need support with P11D reporting, payroll compliance, or Class 1A NIC calculations, contact JSB Accountants today. Our experienced team is here to help you meet your deadlines, stay compliant, and focus on running your business with confidence.
As a family-run company, we pride ourselves on providing a bespoke service tailored to your particular needs.
Above all, our objective is to save you time, money and effort in managing your accounts, leaving you free to focus on building your business.
Remember, you’re not alone, we’re always here to help if you have an accounts problem or query
Share this post: