🔔 Key Accounting Deadlines: October 2025 — Stay Ahead with JSB Accountants
As we move into the final quarter of 2025, there are several important dates in the accounting calendar that employers, contractors, and payroll teams should mark in their diaries. Staying compliant with HMRC deadlines is essential to avoid penalties and keep your business running smoothly.
Here’s a quick rundown of the October 2025 deadlines to keep on your radar, and how JSB Accountants can help you stay on top of them.
📅 19 October 2025 – CIS & PAYE Deadlines (Postal Submissions)
1. CIS Return (Payments to Subcontractors up to 5 October 2025)
If your business operates within the Construction Industry Scheme (CIS), this is the deadline to file your CIS return for payments made to subcontractors between 6 September and 5 October 2025.
It’s vital to ensure all deductions are accurately calculated and reported to HMRC. Late or incorrect submissions can lead to penalties, but JSB Accountants can handle your CIS reporting for you, making sure everything is filed correctly and on time.
2. Payment of PAYE, NIC & CIS (Postal Submissions)
For employers making postal payments of PAYE (Pay As You Earn), National Insurance Contributions (NICs), or CIS liabilities for the month or quarter ending 5 October 2025, HMRC must receive payments by 19 October.
If you prefer to avoid postal delays, you’ll benefit from submitting payments electronically (see below). JSB Accountants can manage these payments and help you switch to faster, more secure digital systems.
📅 22 October 2025 – Electronic Payment Deadlines
1. PAYE, NIC & CIS Payments (Electronic Submissions)
If your business pays electronically, you have until 22 October 2025 to make your monthly or quarterly PAYE, NIC, and CIS payments for the same period.
Electronic payment is faster, safer, and gives you those crucial extra three days to process transactions. JSB Accountants can set up and oversee your electronic submissions, ensuring everything is compliant and efficient.
2. PAYE Settlement Agreement (PSA) / Class 1B NIC Payments (Electronic)
For employers with a PAYE Settlement Agreement (PSA), 22 October 2025 is also the electronic payment deadline for any Class 1B National Insurance Contributions (NICs) and tax due under that agreement.
PSAs allow you to simplify your reporting by paying tax and NICs on certain benefits and expenses on behalf of your employees. JSB Accountants can calculate, prepare, and submit your PSA to ensure it’s handled accurately and stress-free.
💡 How JSB Accountants Can Help
At JSB Accountants, we understand that managing multiple deadlines can be overwhelming, especially when you’re balancing payroll, subcontractor payments, and general business operations. Our team can:
Handle CIS submissions and ensure compliance with HMRC requirements
Manage PAYE and NIC calculations for employees and directors
Process both postal and electronic payments efficiently
Prepare and file your PAYE Settlement Agreement (PSA)
Keep you updated with key dates and regulatory changes throughout the year
With our proactive approach, you’ll never miss an important deadline again.
🧾 Final Thoughts
With so many reporting and payment obligations clustered around the 19–22 October 2025 period, it’s easy to feel the pressure. But with the right support, compliance doesn’t have to be complicated.
JSB Accountants is here to help you stay organised, compliant, and confident, allowing you to focus on running your business while we handle the details.
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.
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