Twelve Days to 31 August: Ireland VAT IOSS July Return

Revenue’s Calendar of key dates for tax professionals lists 31 August 2026 for the VAT IOSS monthly return and payment for July 2026. As of 19 August — the same day domestic July VAT 3 is due — Irish Import One Stop Shop (IOSS) registrants and intermediaries have twelve calendar days to close the July IOSS pack.

IOSS lets suppliers account for EU VAT on low-value imported consignments (intrinsic value not exceeding €150) through a monthly return to the Member State of identification instead of paying import VAT to Customs at the border. Revenue’s IOSS Tax and Duty Manual confirms the return must be filed electronically by the end of the month following the tax period, whether or not any supplies were made.

Who must file by 31 August

Taxable persons registered for IOSS in Ireland, and intermediaries representing those persons, must submit a July 2026 IOSS VAT return through ROS by 31 August 2026 and remit the VAT due. Intermediaries file a separate return for each taxable person they represent.

A nil return is still required where no IOSS supplies were made in July. Missing the deadline typically triggers an electronic reminder after about ten days; unpaid VAT attracts a similar payment reminder. Do not confuse IOSS with the Union/non-Union One Stop Shop quarterly returns — IOSS is monthly.

How IOSS sits beside today’s VAT 3

July VAT 3 for domestic Irish registrations is due today, 19 August (with ROS payment extension to 23 August where applicable). IOSS is a different scheme with a different month-end deadline. Traders who hold both a domestic VAT registration and an IOSS registration must clear both packs — one does not substitute for the other.

Use the twelve days after VAT 3 to reconcile July IOSS sales by Member State of consumption, confirm the unique payment reference that accompanies the return, and diary August IOSS for 30 September 2026 once July is locked.

Action checklist before 31 August

Export July IOSS supply listings broken down by Member State of consumption and confirm the €150 intrinsic-value boundary was applied correctly.

Prepare a nil return if there were no July IOSS supplies — do not skip the filing.

Confirm ROS IOSS credentials and payment method so the return and remittance share the correct reference.

Diary 30 September for the August IOSS return immediately after July is filed.

How FinnAccountings helps with IOSS and VAT prep

FinnAccountings helps Ireland and UK traders prepare VAT and bookkeeping packs with Chartered Accountant insight before you or your Chartered Accountant (Ireland) or ICAEW/ACCA adviser files. We draft review-ready VAT workpapers — we do not file IOSS or VAT 3 returns on ROS for you.

VAT return services Ireland →

Related reading

Use yesterday’s IOSS overview for the fuller July scheme narrative.

Ireland VAT IOSS July due 31 August →

Domestic VAT 3 filers should keep today’s due-day briefing open beside the IOSS pack.

Ireland VAT 3 due today — 19 August →

After VAT 3, sequence ROS cash to 23 August before month-end IOSS.

After VAT 3: ROS cash checklist to 23 August →