For a new Irish company, the phrase annual return can cause an expensive misunderstanding. A founder may assume the accountant's tax return also updates the company register, or that a CRO filing includes the preparation of accounts. These are connected processes, but they are not the same deliverable and do not share a single deadline.
The CRO annual return is Form B1, a company-law filing. Financial statements describe the company's financial position and performance and are normally attached to the relevant full annual return. The Corporation Tax return, CT1, goes to Revenue through ROS. Each needs its own owner, timetable and evidence of completion.
This guide is for directors forming their first LTD, moving from a sole-trader business or checking what a filing service includes. It explains the distinctions, the first-year exceptions and the questions to ask your company secretary and accountant. It is a planning guide rather than a personalised filing calculation: company history, financial periods and any valid deadline changes must be checked individually.
Three processes, not three names for the same return
Use separate labels in your compliance calendar and adviser emails. Ask whether the work relates to the CRO B1, accounts preparation or Revenue CT1. A message saying your return is done is not enough if you do not know which return it refers to. Request the relevant confirmation and keep it with the company's records.
The workstreams share information. Officer and share details feed the CRO return, bookkeeping supports the financial statements, and accounts inform the tax computation. Nevertheless, one submission does not replace the others. A company can have correct accounts and still miss its CRO filing, or submit a B1 while a Revenue obligation remains outstanding.
| Item | Main purpose | Destination or use | Scope question |
|---|---|---|---|
| Annual return: B1 | Report company particulars at the relevant return date | CRO through CORE | Are preparation, signatures, attachments and filing covered? |
| Financial statements | Report financial position and performance | Company records and relevant CRO filing | Who prepares, approves and supplies the filing accounts? |
| Corporation Tax return: CT1 | Report the tax computation for a tax accounting period | Revenue through ROS | Are computation, submission and payment instructions covered? |
| Preliminary Corporation Tax | Address the separate advance-payment obligation | Revenue | Has the applicable earlier deadline been checked? |
What the CRO annual return covers
The B1 is a snapshot of the company's particulars, not a declaration of taxable profit. Prepare it from reliable records rather than copying last year's information without checking changes. Review the company's officers, address and share information with the person preparing the filing, and resolve inconsistencies before approval.
Treat signatures and required attachments as part of completion. Saving a draft or sending information to an adviser is not the same as successfully filing the return. Agree who follows up on queries and checks the submission status. Directors should retain the filing confirmation and make sure the next due date is recorded, even where an external service handles the administrative work.
- Check the legal company name and CRO number against the records.
- Review relevant officer, address and ownership information for accuracy.
- Confirm which financial statements, if any, must accompany this return.
- Plan separate director and secretary signatories where required.
- Keep confirmation of the completed filing, not merely a draft.
Your first six-month return is not your first set of accounts
The first annual return date is six months after incorporation, and that first B1 does not require financial statements. This exception concerns the attachment to that particular CRO return. It is not permission to ignore bookkeeping, skip company records or assume the company has no Revenue obligations until its second year.
Use the early filing as a checkpoint. Confirm that the company details are correct, your secretary arrangement is working and a financial year-end has been discussed with the accountant. Record transactions from the beginning, including formation expenses and money introduced by directors. Waiting until the first accounts are due makes it harder to reconstruct what belongs to the company and what was paid personally.
Accounts preparation and accounts filing are separate tasks
Financial statements need underlying accounting records. An annual-return service cannot manufacture accurate accounts from a company name and number. Ask your accountant when bookkeeping must be supplied, when the accounts will be ready for review, and what version is needed for the CRO attachment. Do not assume an annual-return purchase includes the accounts-preparation work.
The CRO permits a first financial-statement period of up to 18 months; later periods are normally 12 months, subject to the applicable rules. Accounts still need to be prepared where a company qualifies for audit exemption. Exemption from an audit is not exemption from accounting records or a blanket exemption from filing. Confirm which requirements apply to your company's type, size and history.
- Agree the financial year-end rather than leaving it to chance.
- Maintain bank records, invoices, receipts and explanations of director transactions.
- Give the accountant enough time to prepare and discuss the accounts.
- Confirm approval, signing and the correct filing version before submission.
CRO deadlines and Revenue deadlines use different clocks
The general CRO filing window is 56 days after the annual return date. When accounts are required, the deadline is the earlier of that window and the financial-year-end-based limit of nine months plus 56 days. The accounts date must also fit the applicable CRO rules. Ask the filing adviser to calculate the actual deadline from your company's current record.
For Corporation Tax, Revenue requires electronic filing and payment through ROS. The CT1 and balance of tax are due nine months after the tax accounting period ends, on or before the 23rd of that ninth month. Preliminary tax has its own timetable. These are separate from the CRO annual return date; changing or meeting one does not automatically change or satisfy the other.
A simple example of separate filing dates
Consider an illustrative LTD incorporated on 1 January 2026, trading from that date, with an unchanged first annual return date of 1 July 2026 and a financial year-end of 31 December 2026. Its first six-month B1 has no accounts attached. Assuming the next annual return date remains 1 July 2027, the later return requires the appropriate financial statements and a separately checked CRO deadline.
If its first Corporation Tax accounting period is the twelve months ending 31 December 2026, the ROS CT1 and balance deadline is 23 September 2027. Preliminary tax must be assessed separately. This example shows why writing one annual deadline in a diary is insufficient. It is not a calculation for companies with different commencement dates, longer accounts periods, changed return dates or an existing filing problem.
- Calendar entry one: first CRO return, including its complete filing window.
- Calendar entry two: bookkeeping handover, accounts preparation and approval.
- Calendar entry three: the next CRO return with required attachments.
- Calendar entry four: preliminary tax assessment and any applicable payment.
- Calendar entry five: CT1 preparation, submission and balance payment.
Long first accounts can require more than one tax return
Do not confuse the maximum first financial-statement period with the length of a Corporation Tax accounting period. Revenue's guidance explains that a tax accounting period cannot exceed twelve months. A longer company accounts period can therefore require separate CT1 returns for the relevant tax periods. The accounts year-end alone does not tell you how many returns are needed.
Ask your accountant to map the company accounts period to the tax periods before the work is quoted. This is particularly useful where the company incorporated before trading began, changed its year-end or prepared extended first accounts. Put the period dates in the engagement instructions so nobody assumes a single CT1 covers an eighteen-month set of accounts.
No sales does not mean there is nothing to do
A newly formed or inactive company still needs its company-law position reviewed. No customer invoices does not necessarily mean no transactions: incorporation expenses, bank charges, subscriptions, share capital and director funding may all need to be understood. Tell the accountant what actually happened rather than describing the company as dormant without checking that description.
Likewise, ask Revenue or the tax adviser which registrations, returns or notifications apply to the company's circumstances. The first B1 accounts exception and an audit exemption do not answer that question. If you decide not to proceed with the business, get advice on a proper closure route rather than leaving reminders unanswered and assuming the company disappears automatically.
- List expenses and funding even if there have been no sales.
- Check the current CRO return date and filing history.
- Confirm the tax registration and commencement position with the adviser.
- Review whether the company should continue or be formally closed.
Late filing has different consequences in each system
Do not mix CRO late filing with late tax filing or payment. Each can lead to its own consequences and requires its own response. If a deadline may have been missed, gather the current company record, financial periods and any Revenue notices immediately. Ask the relevant adviser to confirm outstanding work instead of attempting to solve every issue with a single annual-return order.
CRO audit-exemption guidance changed from 16 July 2025. Where the relevant annual return is late and there was another late return within the preceding five-year period, the company loses audit exemption for the following two years. Other qualification conditions still matter. One late filing should not be dismissed as harmless, but neither should every first late return be described as automatically causing that two-year loss.
What to ask before buying an annual-return service
Send the provider your company number, current return date and the stage you have reached. Say whether accounts have been prepared, whether any officer or share changes need review and whether the return may already be late. This helps distinguish a routine submission from a company that needs additional accounting or corrective work before filing.
StartCompany.ie's annual-return product page gives the current service information and total payable. Review the scope before ordering; arrange accounts preparation and Corporation Tax work separately where required. A clear division of work lets the company secretary, filing provider and accountant coordinate rather than discovering a missing document at the last moment.
- Does the order cover preparation and submission, or only a specified part?
- Are financial statements already available, and who supplies the correct attachment?
- Who signs and approves the return, and when must the information be supplied?
- Are overdue filings, amendments or additional work outside the standard scope?
- What confirmation will I receive when the filing is completed?
- Which adviser is separately responsible for CT1 and tax-payment advice?
Build one calendar with distinct responsibilities
Create a shared calendar with separate entries for information gathering, accounts review, CRO filing, preliminary tax and CT1. Give each entry an owner and an internal deadline earlier than the statutory deadline. Allow time for questions and signatory availability. An external adviser can support the process, but the director should still know which tasks are complete and which remain open.
Keep a simple completion record: the period, filing type, submission confirmation, payment evidence where relevant and next action. This makes handovers easier when you change accountants or company secretaries. It also helps you ask a precise question: not are my annual returns done, but has this B1 been filed, are these accounts approved, and has this CT1 and tax balance been dealt with?
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Official information and next steps
CRO and Revenue guidance checked on 9 October 2026. Actual deadlines depend on the company's return date, financial year-end, tax periods and filing history.