Most individual taxpayers and business managers in Jersey find tracking the island's overlapping web of filing and payment deadlines deeply frustrating. When you are focused on running an enterprise, managing property assets, or handling local payroll, it can feel like as soon as you settle one return, the next statutory date is already looming.
The solution is a definitive, clearly mapped regulatory calendar — the single most effective way to eliminate surprise penalties and keep your cash flow secure. This guide breaks down the continuous monthly payroll timelines, the precise mid-year personal milestones, and the crucial corporate deadlines you must track to protect your business in 2026.
The 15th of Every Month: CER, ITIS & Social Security
Compliance in Jersey is not a seasonal exercise — it is a continuous operational cycle. Every local employer must submit their Combined Employer Return (CER) to Revenue Jersey by midnight on the 15th of every single month.
This single digital return combines your employees' ITIS (Income Tax Instalment System) deductions, their Social Security payments, and your corresponding employer contributions.
What the monthly CER covers:
ITIS Deductions
Employee income tax deducted at their effective rate
Employee Social Security
6% employee contribution on eligible earnings
Employer Social Security
6.5% employer contribution on eligible earnings
Late submission risk: Revenue Jersey's automated tracking flags late CERs instantly — triggering surcharges, penalties, and potential compliance investigations.
Q1: January & February Milestones
The first quarter is when the groundwork for a compliant financial year is established. Two separate deadlines in quick succession demand attention from employers and company directors.
15 January
Benefits in Kind (BIK) Returns
If your business provides employees with non-cash benefits — company vehicles, private medical insurance, subsidised accommodation — you must report them by this date alongside your standard January CER.
Penalty: An automatic £300 statutory fine is triggered for any late or inaccurate BIK return.
Common benefits that must be declared:
28 February
JFSC Annual Confirmation & JOIC Data Protection
February focuses on corporate governance. Two separate obligations share the same date:
JFSC Annual Confirmation
Every Jersey-registered company must confirm its active status, shareholding structure, and beneficial ownership details. Missing this can result in the company being struck off the register — freezing bank accounts and transferring assets to the Crown.
JOIC Data Protection Renewal
If your organisation processes personal data, your annual filing and payment to the Jersey Office of the Information Commissioner (JOIC) must be finalised by this date to maintain legal compliance.
Mid-Year: May & July — The High-Activity Period
The months between May and July represent the highest concentration of tax activity for individuals, landlords, and corporate treasurers. Three separate deadlines — two on the same date — demand careful advance planning.
31 May
Three Obligations — One Date
31 May is a critical crossroads for multiple compliance streams. Individuals, companies, and paper-filers all share this deadline.
Paper Personal Tax Returns
Individuals31 May is the absolute deadline for anyone submitting a traditional paper personal tax return for the previous calendar year. Following the rollout of Independent Taxation, married individuals are now assessed entirely on their own separate incomes.
Second Personal Tax Instalment
Individuals31 May is also the final date to make your second personal tax instalment payment on account. Check your payment schedule to confirm the correct amount due.
50% Corporate Interim Instalment
CompaniesCompanies not classified as large remitters must calculate and pay their interim instalment on account by 31 May. The payment must represent exactly 50% of the company's estimated income tax liability for the year of assessment.
31 July
Digital Returns, Trusts & Foundations
July is the final deadline for all online personal tax returns and a key filing date for trusts, foundations, and non-resident taxpayers. Do not leave the OneGov account setup until the final days — digital identity verification can take several business days.
Online Personal Tax Returns
The final filing deadline for all individuals using the Revenue Jersey OneGov digital portal. Two months later than paper — but a hard stop.
Foundation Tax Returns
Foundations delivering returns electronically must submit their financial statements by midnight on 31 July.
Paper Trust Tax Returns
Trust tax returns utilising traditional paper submissions must be delivered to the Comptroller by this exact date.
Non-Resident Tax Returns
Individuals living outside Jersey who hold Jersey-source income — such as local rental revenues — must also file by this date.
Autumn & Winter: The Compliance Endgame
The final months of the year shift the focus toward specialised sectors, corporate transparency, and final balancing payments. For corporate accountants and business owners, this is the most intensive period of the year.
5 October – 6 November
Liquor Licence Renewal Window
For the island's hospitality and retail sectors, October triggers a critical operational window. If your business holds a liquor licence, you must submit your formal renewal application within this strict timeframe. Failing to file within this window can disrupt your trading capabilities during the vital festive period.
Mid-November
ITIS Effective Rate Notices Issued
During November, Revenue Jersey distributes updated ITIS effective rate notices. These notices dictate the percentage your employer will deduct from your salary starting in January of the following year.
Action required: Review this notice immediately if your financial circumstances have changed — significant changes in income, new rental properties, or starting self-employment will all affect your correct rate. Failing to act can lead to chronic underpayments or overpayments.
30 November — Most Critical Corporate Deadline
Corporate Returns, Partnerships & Final Balancing Payments
For corporate accountants and business owners, 30 November is the most critical deadline of the year. Multiple corporate structures and individual taxpayer categories all share this single date.
Corporate Tax Returns
All standard companies must electronically submit their corporate tax return and pay their final balancing tax for the previous year of assessment.
Partnership Tax Returns & PCN
Complete financial declarations and Partnership Combined Notifications (PCN) — combining tax and Economic Substance data — must be submitted by this date.
LLC Platform Submission
The secretary of a Limited Liability Company must submit the relevant LLC sections via the combined partnership platform.
Balance of Tax & 1st Instalment
The final balance of tax for the previous tax year must be settled. First instalment for the current year is also due. Unpaid debts trigger an immediate 10% surcharge.
2026 Summary Compliance Calendar
The complete at-a-glance reference for all Jersey filing and payment dates in 2026.
| Date | Obligation | Period |
|---|---|---|
| 15th monthly | Combined Employer Return (CER) — ITIS deductions & Social Security | Monthly |
| 15 January | Benefits in Kind (BIK) Submission — £300 penalty for late filing | Q1 |
| 28 February | JFSC Annual Confirmation & JOIC Data Protection Renewal | Q1 |
| 31 May | Paper Personal Tax Return — final date for traditional paper submission | Q2 |
| 31 May | 2nd Personal Tax Instalment — second payment on account due | Q2 |
| 31 May | 50% Corporate Interim Instalment — payment on account of current year liability | Q2 |
| 31 July | Online Personal Tax Return — final deadline for all personal returns | Q3 |
| 31 July | Foundation Tax Returns — electronic submissions due by midnight | Q3 |
| 31 July | Paper Trust Tax Returns — delivered to the Comptroller by this date | Q3 |
| 31 July | Non-Resident Tax Returns — Jersey-source income including rental revenues | Q3 |
| 5 Oct – 6 Nov | Liquor Licence Renewal Application Window — must apply within this period | Q4 |
| Mid-November | ITIS Effective Rate Notices issued — review immediately if circumstances changed | Q4 |
| 30 November | Corporate Tax Returns & Final Balancing Payment — filed electronically | Q4 |
| 30 November | Partnership Tax Returns & PCN Declarations — combined tax and substance data | Q4 |
| 30 November | LLC Combined Partnership Platform Submission via company secretary | Q4 |
| 30 November | Balance of Tax Payment & 1st Instalment for current year — 10% surcharge if late | Q4 |
Ongoing GST & Regulatory Obligations
Beyond the fixed calendar dates, local organisations must maintain continuous oversight of several broad regulatory frameworks throughout 2026.
GST Returns — Quarterly or Annual
Businesses must strictly monitor their GST return filing deadlines, with the frequency dictated by your specific registration threshold. Standard businesses file quarterly — due by the end of the month following the calendar quarter. Smaller entities on the annual scheme must match their specific allocated accounting period.
Economic Substance Reporting
Corporate entities must proactively address their Economic Substance reporting obligations. Your business must be able to prove it is directed, managed, and conducting core income-generating activities physically within Jersey.
Employer Payroll Compliance Reviews
Regular reviews should verify the accuracy of monthly CER filings, maintain precise payroll reporting, and ensure full alignment with the updated Jersey Minimum Wage frameworks. Errors identified proactively cost far less to correct than those discovered during a Revenue Jersey investigation.
Frequently Asked Questions
What happens if I miss the 31 May deadline for paper returns but file online instead?
If you miss the 31 May paper deadline, you are not penalised provided you complete and submit your return online via the OneGov portal by 31 July. The £300 late filing penalty is only triggered if you fail to submit any return at all by the final 31 July digital deadline.
How do quarterly and annual GST filing deadlines work in Jersey?
Your specific GST filing deadline depends on how your business is registered with Revenue Jersey. Standard businesses typically file quarterly returns, which are due by the end of the month following the calendar quarter. Smaller entities utilising the annual scheme must ensure their annual returns and balancing payments match their specific allocated accounting periods.
What is the penalty for a late JFSC Annual Confirmation?
Failing to submit your corporate Annual Confirmation to the JFSC by 28 February results in late filing fees that escalate over time. If the confirmation remains outstanding for an extended period, the JFSC has the statutory power to strike the company off the register entirely — instantly freezing your corporate bank accounts and transferring remaining assets to the Crown.
Why is the mid-November ITIS notice so important for the self-employed?
While the notice is vital for employees to check their payroll deductions, it is equally important for self-employed individuals who have transitioned to the individual tax framework. It provides a benchmark of how Revenue Jersey estimates your current income, allowing you to accurately calculate your upcoming 30 November balancing payments and avoid the 10% late surcharge.
Important Disclaimer
Tax regulations and statutory deadlines are subject to ongoing legislative adjustments by the Government of Jersey. This article is provided for general informational purposes only and does not constitute formal corporate or personal tax advice. Taxpayers must consult a qualified local tax professional to confirm their specific filing obligations.
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