VAT returns are a regular obligation for registered businesses. This guide explains how to complete and file your VAT return correctly and on time.
23%
Standard rate
€80k
Goods threshold
€40k
Services threshold
19th
Monthly due date
Do You Need to Register for VAT?
You must register for VAT if your turnover exceeds these thresholds:
€80,000
For goods
€40,000
For services
€41,000
Intra-EU acquisitions
Voluntary Registration
You can register voluntarily below these thresholds if it benefits your business, such as recovering VAT on purchases or appearing more professional to business clients.
VAT Return Filing Periods
Most businesses file bi-monthly (every two months). Here are the standard due dates:
| Period | Due Date |
|---|---|
| Jan-Feb | 19 March |
| Mar-Apr | 19 May |
| May-Jun | 19 July |
| Jul-Aug | 19 September |
| Sep-Oct | 19 November |
| Nov-Dec | 19 January |
Step-by-Step: Completing Your VAT Return
Gather Your Records
Collect all sales invoices, purchase invoices, credit notes, bank records, and import/export documentation.
Calculate Output VAT
Add up all VAT charged on your sales, separated by rate (23%, 13.5%, 9%, 0%).
Calculate Input VAT
Add up all VAT paid on business purchases. Keep valid VAT invoices and note restrictions on cars and entertainment.
Complete VAT3 Form on ROS
Enter T1 (output VAT), T2 (input VAT), T3 (net payable), T4 (sales value), and EU fields.
Submit and Pay
File through ROS and pay any VAT due by the 19th of the month following the period.
VAT3 Form Key Fields
VAT Rates in Ireland
Standard Rate
Most goods and services
Reduced Rate
Building, fuel, electricity
Second Reduced
Hospitality, tourism
Zero Rate
Food, children's clothing, exports
VAT on Different Transaction Types
Irish Sales to Irish Customers
Charge VAT at the appropriate rate and include in T1
EU Sales to VAT-Registered Businesses
Zero-rated if you have their VAT number. Report in T4 and E2
Non-EU Exports
Zero-rated. Report in T4
Common VAT Mistakes
Avoid These Errors
- Claiming VAT on non-deductible items
- Missing the filing deadline
- Applying incorrect VAT rates
- Not keeping proper VAT invoices
- Forgetting to include all sales
- Claiming personal expenses
Tips for Smooth VAT Returns
- Use accounting software to track VAT automatically
- Reconcile regularly throughout the period
- File a few days early to avoid deadline stress
- Keep all invoices organised by period
- Set aside VAT collected in a separate account
Related Business Guides
Need VAT Help?
We prepare and file VAT returns for businesses across Ireland. Let us handle the complexity.
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