Got an email from the Companies Registration Office (CRO) and felt your stomach sink a little? You're not imagining it. Missing a filing deadline is one of the quickest ways to rack up fines and lose your audit exemption, and for a busy founder juggling everything else, it's easy for the date to creep up unnoticed. Every Irish limited company must file a B1 Annual Return once a year, even if you haven't started trading or made a profit. Once you know the deadline, it's a straightforward job.
This guide covers who needs to file, when it's due, how to find your Annual Return date, and what happens if you miss it.
Who needs to file a B1 Annual Return?
Every Irish limited company registered with the CRO must file an Annual Return, regardless of turnover, profit, or trading status. Dormant and non-trading companies aren't exempt: the obligation exists simply because the company is registered. A company that has never traded still has to file, and accounts showing all zeros are still accounts.
At Kinore, this is the kind of filing our Client Services Team handles every day. We're a large, senior-led firm with dedicated client management, not a sole practitioner tracking deadlines on a spreadsheet, so nothing gets missed.
When is the Annual Return deadline in Ireland?
- Your first Annual Return is due 6 months after your company's incorporation date. This sets your ongoing Annual Return Date for every year after.
- All subsequent Annual Returns are due every 12 months from that date.
- You can apply for an extension if you need more time, but the application must be submitted before your current deadline expires, so talk to a professional in good time if you think you'll need one.
Missing the deadline is a costly mistake: your company can face fines of up to €1,200 per year and, in some cases, loses its audit exemption (more on that further down). It's also worth staying ahead of your income tax return deadline, which can land around the same time and compound the pressure.
How to find your Annual Return date
The quickest way to check your Annual Return Date is on the CRO's own website, CORE. Search your company name or number for its filing history and next due date. If you're unsure, or you've had a letter from the CRO, our Client Services Team can talk you through it.
It's a fair question: if CORE lets you file it yourself, why not just do it? Plenty of directors do, and it works fine as long as your accounts are ready and nothing has changed since your last filing. Miss either and the return gets rejected or delayed, which is when the stress, and the fines, really start. That's why many owners hand the job to someone who tracks it for a living.
What do you need to file a B1 Annual Return?
- A CORE account: Annual Returns are filed online through the Government's CORE system, or you can outsource the job to a firm like Kinore.
- Form B1: usually prepared by the company secretary and signed by one director and the secretary before submission.
- Abridged accounts: financial statements for the correct period, signed and uploaded to CORE.
How to file a B1 Annual Return step by step
- Prepare the Form B1 in CORE.
- Upload the financial statements (abridged accounts).
- Print and sign the B1 signature page, then upload it to CORE.
- Pay the filing fee of €20.
What is the Form B1?
The Form B1 sets out your company's core details: directors, company secretary, shareholders and share capital. If anything changed during the year, a new director, a change of address, the CRO needs to be told before your Annual Return is due, because the Form B1 must match what's already on the CRO's records.
What are abridged accounts?
Abridged accounts are condensed financial statements filed alongside your B1 Annual Return, required even if your company is dormant. Once submitted, they become publicly available on the CRO website, so it's worth getting them right.
What is the B1 signature page?
The B1 signature page is generated after your financial statements are uploaded. It must be printed and signed in wet ink by a director and the company secretary; digital signatures aren't accepted. Once uploaded and the fee paid, your return goes to the CRO for review.
Your first Annual Return vs later returns
Requirements change as your company matures:
|
Return |
Timing |
What's required |
|
First Annual Return |
6 months after incorporation |
Form B1 with company details only, no accounts |
|
Second Annual Return |
18 months after incorporation |
Form B1 plus your first set of abridged accounts |
|
Every return after that |
Every 12 months from your Annual Return Date |
Form B1 plus abridged accounts each time |
After that second return, the cycle is predictable: same paperwork, same 12-month rhythm, which is why many companies put it on autopilot with an accountant.
To make that concrete: a company incorporated on 3 March 2026 has a first Annual Return Date of 3 September 2026, just the Form B1, no accounts, and the €20 fee. Its second Annual Return Date, 3 September 2027, is when abridged accounts join the paperwork for the first time. After that, every 3 September brings the same rhythm, and the cycle stops feeling like a mystery.
Will a late return cost you your audit exemption?
For years, the rule was blunt: file one Annual Return late and you lost your audit exemption for the following two years, however good your record had been before that.
That changed with an amendment to the Companies Act 2014, effective from mid-2025. Under the current rule, a company only loses its audit exemption for the two financial years after a late filing if it has also filed late at least once in the five financial years before that. Your first Annual Return, and any late filings from before the rule changed, don't count against you.
In practice, a company with a clean five-year record can miss one deadline, pay the late filing fee, and keep its audit exemption. Miss two within that five-year window, though, and the exemption is gone for the next two years. It's welcome leniency, but not a licence to relax: the late fee still applies from day one.
Already missed your deadline? What you can still do
If your Annual Return Date has already passed, don't panic, but don't sit on it either. The fee clock starts running the day after your deadline expires, so file the overdue return as soon as your accounts are ready; every extra day adds to the fee. Talk to your accountant or the CRO rather than assuming the situation is unrecoverable; plenty of late returns are filed and accepted without drama.
For genuinely exceptional circumstances, Section 343 of the Companies Act 2014 allows a company to apply to the District Court, in the district where its registered office is located, or to the High Court, for an order extending the time allowed to file, if the court is satisfied it would be just to do so. A certified copy of any order must reach the CRO within 28 days for it to be valid. This is a legal remedy for a genuine problem, not a routine fix for a forgotten deadline, so talk to your accountant or a solicitor before going down this route.
Staying on top of your deadline
The CRO typically emails a reminder around six weeks before your Annual Return Date. Missing that email is often how companies end up with late fees, which is why many owners outsource the whole process to an accountant who tracks it for them.
FAQs
What is a B1 Annual Return? It's the annual filing every Irish limited company must submit to the CRO, confirming company details and, from the second return onwards, financial statements.
Is a B1 Annual Return the same for every company? The core requirement is the same, but first returns skip the accounts, and companies with different structures may need related forms such as a B1C.
What other filings should I be aware of alongside my Annual Return? Corporation Tax Returns, Income Tax Returns for directors, and VAT Returns (if registered) all run alongside your CRO obligations.
Can I file a B1 Annual Return myself? Yes, through CORE, but many owners outsource it to avoid missing deadlines or making errors that delay approval.
Will filing one Annual Return late cost me my audit exemption? Not automatically since a mid-2025 change to the Companies Act 2014: the exemption is only lost for the following two years if you've filed late more than once in the previous five years. The late filing fee still applies regardless.
What can I do if I've already missed my Annual Return deadline? File as soon as your accounts are ready to stop the fee accruing. For exceptional cases, a court application under Section 343 of the Companies Act 2014 can extend the filing time, but it's a legal remedy, not a routine fix.
If you have an Annual Return deadline coming up, don't leave it to chance. Call Kinore on 01 905 9364, email hello@kinore.com, or book a discovery call, and our team will take care of your B1 Annual Return from start to finish.
The information provided in this article is for general guidance and informational purposes only. It does not constitute professional accounting, tax, or financial advice, and should not be relied upon as a substitute for advice tailored to your specific circumstances. While we take care to ensure the content is accurate and up to date at the time of publication, legislation, tax rates, thresholds, and compliance requirements in Ireland can change.
