Straight answers.
Grouped so you only read what applies to you. Not here? [email protected] — we answer within one business day.
About AEOIkit
The product, your data, licensing and support.
Does my account holder data get uploaded anywhere?
No. The core tool runs entirely inside your browser. Entry, CSV import, validation and XML generation happen on your machine — there is no server and no account, and you can run it offline.
Will it run on our locked-down machines, or on a Mac?
Yes. It needs only a modern browser — Chrome, Edge, Firefox or Safari — on Windows, macOS, Linux or a tablet. No installer, no admin rights, no macros.
Can I see it before I buy?
Yes. The two-minute product video runs the full workflow on sample data, from a blank return to a validated v3.0 file. Anything it doesn’t answer, email [email protected] and we’ll reply within one business day. We don’t send out trial copies of the tool.
How does licensing work?
A licence is a personalised, signed copy keyed to your organisation, FI number(s) and reporting year. Pay by card and it is emailed to you as a download link as soon as payment completes. CI$1,500 for one FI, CI$750 for each additional FI, intermediary licences from CI$8,000 for 10 FIs.
What happens when the reporting year ends?
Nothing ends: your copy keeps working for returns up to its licensed year, including corrections. When the next year’s return can be prepared, we email you (around mid-November, again in mid-January, and a last time in April) with a link that has your details filled in. Renewal is a deliberate purchase, not an auto-charged subscription.
We file for many FIs. Is there a bulk workflow?
Yes — CSV bulk import, draft save/load for preparer/reviewer sign-off, and per-FI pricing that slides with volume. Buy by card for up to 100 FIs from the Pricing page, or email us with your FI count and we’ll send an invoice or answer any questions.
Who is behind AEOIkit?
An independent, Cayman-based team who have prepared and filed CRS returns through the DITC portal. It is deliberately a focused tool: it produces schema-valid v3.0 CRS XML and is priced accordingly.
CRS v3.0 in general
The OECD standard, wherever you file.
What is Schema v3.0?
The OECD’s XML schema for the amended Common Reporting Standard. It adds data per account — account type, new or preexisting, joint-account details, equity-interest role, self-certification status — and brings new data-quality rules with it. More on the CRS v3.0 page.
Is there a limit on the number of accounts per return?
No. The 50-account cap some filers remember came from the tool’s origins, not the schema. AEOIkit is tested with 1,000-account returns.
Can it produce corrections and deletions?
Yes. AEOIkit produces v3.0 correction and deletion records that reference the records they replace, with identifiers consistent with your prior filings.
What about jurisdictions other than the Cayman Islands?
The current release implements Cayman conventions. The Isle of Man, Guernsey and Jersey are planned for 2027, each validated against local rules before release. Tell us where you file and we’ll let you know.
Will AEOIkit support CARF?
Yes. Support for the Crypto-Asset Reporting Framework is planned for 2027. In the Cayman Islands the CARF rules took effect on 1 January 2026, and the first returns, for 2026, are due by 30 June 2027. FATCA is under consideration. If you’ll report under either, tell us at [email protected] and we’ll write when it’s ready.
Cayman Islands
DITC-specific answers. The dates are on the Cayman guide.
Is AEOIkit endorsed or approved by the DITC?
No. AEOIkit is not endorsed or approved by the DITC or any other body. What we can say is that AEOIkit’s output validates against the official OECD v3.0 schema with zero errors on our test returns, and that when the DITC publishes its v3.0 portal rules we will re-validate against them and publish the results.
What happened to the free DITC XML Generator Tool?
With the move to v3.0, the DITC is no longer providing an XML generator tool. The portal closed to CRS XML in early August 2026 and is expected to reopen in early 2027 for v3.0 files.
Do corrections to earlier years also have to be v3.0?
Yes. The DITC has said new reportable accounts, corrections and deletions must be submitted in XML Schema v3.0 — so a correction to a prior period filed after the portal reopens must be v3.0 too.
When is the 2026-period deadline?
30 June 2027, a month earlier than the old 31 July. From the 2026 reporting year onwards, the CRS return and the compliance form are both due by 30 June each year.
Does it follow the DITC’s identifier conventions?
Yes. MessageRefId and DocRefId follow the DITC identifier conventions used by the retired DITC tool. A correction references the DocRefId of the record you originally filed.
Longer answers
The questions people ask when the DITC tool goes away, answered in full with sources.