VAT Code Onboarding Questionnaire: Irish Businesses
Updated 30 October 2026
Written for the 2026 VAT codes
This article uses the 2026 VAT codes that new customers are set up on. If your codes look like S1 - IE or P1 - IE, you are on the current codes: see Moving to the 2026 VAT Codes.
We use this questionnaire when we set up Aedon.Accounting for a new Irish business. Your answers decide which VAT codes are switched on. You can complete it with your accountant using the download at the end of this article, or go through it with us at onboarding.
Your details
| Detail | Answer |
|---|---|
| Business name | |
| VAT registration number | |
| VAT3 return frequency: bi-monthly, four-monthly, six-monthly or annual | |
| VAT basis: invoice or cash receipts | |
| VAT accounting year end, for the Return of Trading Details | |
| Accountant’s name and firm |
Question 1: VAT registration
Is the business registered for VAT?
| Answer | Result |
|---|---|
| No | Switch on three codes only: OOS-SAL-NA, OOS-PUR-NA and OOS-JNL-NA. Stop. |
| Yes | Switch on the Standard group and go to Question 2. |
Questions 2 to 5: extra code groups
| No. | Question | If yes, switch on | Codes |
|---|---|---|---|
| 2 | Do you buy or sell goods or services outside Ireland, including the EU? | International | TAX-SAL-00-EXP, TAX-SAL-00-EUG, TAX-SAL-NA-EUS, OOS-SAL-NA-OSS, TAX-PUR-23-RC, TAX-PUR-23-EUG, TAX-PUR-23-EUS, TAX-PUR-23-IMP, TAX-PUR-23-PA |
| 3 | Do you buy or sell livestock? | Agriculture | TAX-SAL-4.8, TAX-PUR-4.8 |
| 4 | Do you have exempt income, such as rents, insurance, finance, health or education, other than bank interest? | Partial exemption | EXE-PUR-23, EXE-PUR-13.5, EXE-PUR-09, EXE-PUR-00, RES-PUR-23, RES-PUR-13.5, RES-PUR-09, RES-PUR-00, RES-PUR-23-RC, RES-PUR-23-EUS, RES-PUR-NA-PEA |
| 5 | Do you buy or supply construction services as a principal contractor or subcontractor under Relevant Contracts Tax? | Construction | TAX-PUR-13.5-DRC, TAX-SAL-00-DRC |
Apportionment set-up
Only if yes to Question 4. Ask your accountant for these settings. See Apportionment and Recovery Percentages: Irish Businesses.
| Detail | Answer |
|---|---|
| Apportionment method agreed with Revenue | |
| Current recovery percentage | |
| When the annual apportionment adjustment is made |
Code sets
| Set | Codes |
|---|---|
| Not registered | OOS-SAL-NA, OOS-PUR-NA, OOS-JNL-NA |
| Standard | TAX-SAL-23, TAX-SAL-13.5, TAX-SAL-09, TAX-SAL-00, EXE-SAL-EX, EXE-SAL-EX-INT, OOS-SAL-NA, TAX-SAL-NA-ADJ, TAX-PUR-23, TAX-PUR-13.5, TAX-PUR-09, TAX-PUR-00, TAX-PUR-EX, TAX-PUR-NA-ADJ, OOS-PUR-NA, OOS-JNL-NA |
Sign-off
| Detail | Answer |
|---|---|
| Completed by | |
| Date | |
| Confirmed by your accountant |
A group can be switched on later if your business changes.
Download the questionnaire
Save a copy to complete with your accountant, then return it to your Aedon contact.
Download the questionnaire (PDF)
Need help?
If you have a question about the codes or the set-up, please raise a case and our support team will help.
Related articles
Apportionment and Recovery Percentages: Irish Businesses
Apportionment and Recovery Percentages: Irish Charities
Choosing the Right VAT Code: Irish Businesses
Choosing the Right VAT Code: UK Businesses
Choosing the Right VAT Code: UK Charities
Creating New Tax Codes
