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First Annual Return Ireland: Form B1 Guide

First annual return Ireland guide: six-month Annual Return Date, Form B1, 56-day filing period, accounts, late filing risks, RBO and a practical checklist.

August 4, 2026 14 min read Editorial update

By the StartCompany.ie editorial team. Last updated August 4, 2026. Check current regulatory guidance at the CRO and Revenue.

Irish company director reviewing a calendar and compliance documents before the first annual return
The first CRO annual return is an early deadline that every new company should put in its compliance calendar.

The first annual return is one of the first formal deadlines for a new Irish company. It often surprises founders because it arrives only six months after incorporation, even where the company has not yet completed a full trading year. Missing it can create avoidable fees, correction work and a poor start to the company's compliance record.

This guide explains the first Annual Return Date (ARD), the CRO Form B1, the filing period, financial-statement position, signatures and the checks to make before filing. It is general information, not accounting, legal or company-secretarial advice for your particular company.

Quick answer

A new Irish company's first ARD is six months after incorporation. The first B1 normally has no financial statements attached, but it still needs to be filed through the CRO process within the applicable filing period, normally 56 days from the ARD. Check the company record, officer details, share information and signatures before submitting.

What Is an Irish Annual Return?

The annual return is a statutory CRO filing, generally made on Form B1. It records a snapshot of the company's public particulars at its Annual Return Date. This can include directors, secretary, registered office, shareholders and share capital. The return is distinct from the company's tax returns, bank obligations and beneficial-ownership filing.

Do not confuse the word “annual” with “after the first year of trading.” A new company enters the CRO annual-return cycle almost immediately. The date flows from incorporation, not from the first invoice, bank-account opening or Revenue registration.

When Is the First Annual Return Due?

The CRO states that a new company's first Annual Return Date is six months after its date of incorporation. For example, a company incorporated on 10 February has a first ARD of 10 August. The return must then be filed through the CRO process within the applicable filing period, normally 56 days from the ARD. Confirm the actual dates shown for your company in CORE rather than relying solely on a diary calculation.

The first return does not normally include financial statements, which makes it simpler than the next one. It is still a compliance filing, however. Set reminders before the ARD and aim to file early enough to handle a rejected submission or signature problem without falling late.

MilestoneTypical timingWhat to do
IncorporationDay 0Save the Certificate of Incorporation and record all first-year deadlines
RBO filingNormally within five monthsFile beneficial-ownership details separately from the annual return
First ARDSix months after incorporationCheck the B1 particulars and begin the CRO submission process
B1 filing windowNormally 56 days after the ARDObtain correct officer sign-off and file before the deadline

Do You Attach Accounts to the First B1?

A new company is normally exempt from annexing financial statements to its first annual return. That exemption does not mean accounts can be ignored. The CRO says the second annual return is generally required to have financial statements attached and is made up to a date no later than 18 months after incorporation, subject to the applicable rules.

Start sound bookkeeping from day one. Keep sales invoices, expense receipts, bank statements, payroll information, VAT records where relevant, contracts and director-loan information. Good records make the second annual return and tax work materially easier.

What to Check Before Filing Form B1

  • The company name and CRO number are correct.
  • The registered office is current and can receive formal correspondence.
  • Directors and secretary details agree with the CRO record and company records.
  • Any officer changes have been dealt with through the appropriate CRO filing.
  • The shareholder, share class and share-capital information matches the statutory registers.
  • The required company officer sign-off is available before the filing window closes.
  • There is no unexplained discrepancy between the CRO record, share certificates and board decisions.

A director or secretary change, registered-office move, share allotment or share transfer may need its own filing or company-record update. Do not try to use the annual return as a shortcut to fix every earlier omission. Identify the proper correction route before submitting the B1.

Signatures, Filing and Rejections

Annual returns are filed through the CRO online process. The company must arrange the required certification and sign-off. The CRO says a B1 with no signature or only one signature is automatically rejected. A sole director cannot sign in both director and secretary capacities; a single-director LTD needs a separate secretary from incorporation onward.

File before the final day. If the CRO returns a filing for an error, the company needs time to correct and re-submit it. A returned form can become a costly late filing if the corrected document is not delivered in the permitted timeframe. Keep proof of the completed submission and follow up if the company does not receive confirmation.

What Happens If the Annual Return Is Late?

The CRO's current fee schedule lists an initial late filing fee plus a daily default fee, up to a stated maximum. Its published schedule currently shows EUR120 initially and EUR3 per day up to EUR1,200 per return, in addition to the annual-return registration fee. Check the live CRO fee page because fees and processes can change.

Late filing can also affect a company's entitlement to claim audit exemption for the relevant period. The commercial consequences can be much larger than the direct late fee. A late return can complicate due diligence, banking conversations, grant applications and a later sale of the business. Treat the ARD as a board-level calendar date, not as an admin task for the last week.

Annual Return, RBO and Tax: Three Separate Jobs

New founders often assume that one filing completes every government requirement. It does not. The B1 annual return updates the CRO record. The RBO filing records beneficial ownership. Revenue registrations and tax returns depend on business activity. A company can be current with one and late with another.

  • CRO Form B1: annual company return and company particulars.
  • RBO: beneficial ownership information, usually within five months for a new entity.
  • Revenue: Corporation Tax, VAT, PAYE or other tax registrations where applicable.
  • Company records: registers, share certificates, minutes, accounting records and evidence of filings.

Read the RBO registration guide and post-incorporation checklistto keep these tracks separate and correctly diarised.

First-Year Compliance Checklist

  1. Record the incorporation date and calculate the first ARD.
  2. Set multiple reminders before the likely filing deadline.
  3. Complete the RBO filing on its separate timetable.
  4. Keep the registered office, directors, secretary and share records current.
  5. Start bookkeeping, even though no accounts are attached to the first B1.
  6. Check whether Corporation Tax, VAT, PAYE or other Revenue registrations apply.
  7. Review Form B1 particulars against the company's statutory registers.
  8. Arrange the required sign-off and submit early through the CRO process.
  9. Retain confirmation and begin planning the second annual return with accounts.

How StartCompany.ie Can Help

StartCompany.ie's Standard, Premium and Non-Resident formation packages include the first annual return as listed on the pricing page. We also offer a separate annual returns service for companies that need B1 preparation and filing support. The company's directors remain responsible for providing accurate, up-to-date information and approving the filing.

Frequently Asked Questions

When is the first annual return due for an Irish company?

A new company’s first Annual Return Date is six months after incorporation. The annual return must then be filed through the CRO process within the applicable filing period, normally 56 days from the Annual Return Date. Confirm the company’s live dates in CORE.

Do I attach accounts to the first Irish annual return?

No. A new company is normally exempt from attaching financial statements to its first annual return. The second annual return generally has financial-statement requirements, so start bookkeeping and accounting preparation early.

What is Form B1 in Ireland?

Form B1 is the CRO annual return. It gives the public register a snapshot of company particulars, including directors, secretary, registered office, shareholders and share capital, subject to the return’s applicable requirements.

What happens if an Irish annual return is late?

The CRO lists an initial late filing fee plus a daily default fee, up to its stated maximum. A late annual return can also affect audit-exemption entitlement. File early enough to correct an issue, and check the CRO’s current fee and filing rules.

Is the first annual return the same as RBO registration?

No. The annual return is a CRO filing. RBO registration records beneficial ownership in a separate register. New companies normally have a five-month RBO deadline, while the first Annual Return Date is six months after incorporation.

Does filing the first annual return register a company for tax?

No. Corporation Tax, VAT, PAYE and other Revenue registrations are separate and depend on the company’s activity. The annual return does not replace tax registration or tax returns.

Who signs a Form B1?

The annual return certification requires the appropriate company officer sign-off. The CRO says a B1 with no signature or only one signature is automatically rejected. Confirm the current CORE process and ensure the director and secretary arrangements are correct.

Can I file the first annual return myself?

A company can use the CRO online filing process, but the directors remain responsible for accuracy and timing. A company-secretarial provider can help where officer details, share changes, signatures or deadlines need to be checked.

Official Sources

Frequently asked questions

When is the first annual return due for an Irish company?

A new company’s first Annual Return Date is six months after incorporation. The annual return must then be filed through the CRO process within the applicable filing period, normally 56 days from the Annual Return Date. Confirm the company’s live dates in CORE.

Do I attach accounts to the first Irish annual return?

No. A new company is normally exempt from attaching financial statements to its first annual return. The second annual return generally has financial-statement requirements, so start bookkeeping and accounting preparation early.

What is Form B1 in Ireland?

Form B1 is the CRO annual return. It gives the public register a snapshot of company particulars, including directors, secretary, registered office, shareholders and share capital, subject to the return’s applicable requirements.

What happens if an Irish annual return is late?

The CRO lists an initial late filing fee plus a daily default fee, up to its stated maximum. A late annual return can also affect audit-exemption entitlement. File early enough to correct an issue, and check the CRO’s current fee and filing rules.

Is the first annual return the same as RBO registration?

No. The annual return is a CRO filing. RBO registration records beneficial ownership in a separate register. New companies normally have a five-month RBO deadline, while the first Annual Return Date is six months after incorporation.

Does filing the first annual return register a company for tax?

No. Corporation Tax, VAT, PAYE and other Revenue registrations are separate and depend on the company’s activity. The annual return does not replace tax registration or tax returns.

Who signs a Form B1?

The annual return certification requires the appropriate company officer sign-off. The CRO says a B1 with no signature or only one signature is automatically rejected. Confirm the current CORE process and ensure the director and secretary arrangements are correct.

Can I file the first annual return myself?

A company can use the CRO online filing process, but the directors remain responsible for accuracy and timing. A company-secretarial provider can help where officer details, share changes, signatures or deadlines need to be checked.

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