This article is for Irish founders, startup owners, and finance or accounting professionals who need to manage bi‑monthly VAT3 returns for their companies. It is especially useful if you are responsible for tax compliance and want clear guidance on filing schedules, required inputs, and common pitfalls.
After reading, you will understand the 2026 VAT3 filing deadlines, know exactly which figures belong in each VAT3 box, and be able to follow a practical checklist to prepare and submit returns confidently, helping you avoid penalties and streamline your VAT compliance process.
Key Takeaways
VAT3 returns are due bi‑monthly, with the ROS deadline on the 23rd of the month after each period (e.g., Jan‑Feb deadline 23 March 2026).
Missing a VAT3 filing, even a nil return, incurs a fixed penalty of €4,000 and interest applies to late payments.
Accurate preparation requires reconciling the VAT control account, ensuring all sales and purchase invoices are valid, and completing the eight‑step checklist before filing.
Postponed accounting lets you declare import VAT on the return instead of paying at the port, with the import value reported in box PA1.
Paul Burke is a qualified ACA and CTA tax accountant in Ireland.He trained at Forvis Mazars in Galway, gaining experience in various tax heads including Income Tax, Corporation Tax, VAT, Payroll and Tax Advisory.He is now a Tax Consultant in a local tax firm.
VAT3 returns are due on the 23rd of the month following each bi‑monthly period. For example, the Jan‑Feb period must be filed by 23 March, Mar‑Apr by 23 May, May‑Jun by 23 July, Jul‑Aug by 23 September, Sep‑Oct by 23 November, and Nov‑Dec by 23 January.
What happens if I miss a VAT3 return?
If you miss a VAT3 return, Revenue imposes a fixed penalty of €4,000 regardless of whether any VAT is owed, and interest accrues at 0.0274 % per day on any late payment. The penalty applies to both missed filings and missed nil returns.
How should I prepare for a VAT3 filing?
To prepare for a VAT3 filing, reconcile your VAT control account, ensure all sales and purchase invoices are issued and valid, verify EU trade figures for E1‑E2 and ES1‑ES2, confirm postponed‑accounting amounts for imports, calculate net payable or repayable, and file and pay through ROS before the 23rd.
What information goes into each VAT3 box?
Each VAT3 box captures specific data: T1 records VAT on sales and outputs, T2 records reclaimable VAT on purchases, T3 shows net payable to Revenue, T4 shows net repayable, E1 and E2 report intra‑Community goods dispatched and acquired, ES1 and ES2 cover EU services, and PA1 records postponed‑accounting import values.
