Form 3520: reporting transactions with your Cook Islands trust

What Form 3520 covers

Form 3520 is the Annual Return to Report Transactions with Foreign Trusts and Receipt of Certain Foreign Gifts. For a Cook Islands trust settlor, it covers three categories of reportable event. The creation of the trust and the initial funding, which is reported in the year the trust is established. Any subsequent transfers to the trust in later years, whether cash, securities, or other assets. And any distributions received from the trust as a beneficiary during the year.

The form must be filed for every year in which any of these events occurred. It must also be filed for every year after establishment, because the trust's existence is a continuing reportable fact even if no transactions occurred. A year with no distributions and no new contributions still requires a filing confirming that position.

When it is due

The same due date as the personal income tax return: April 15 for most filers, with the same automatic extension to October 15 available. The extension for the personal return automatically extends the Form 3520 due date. Filing an extension request for the personal return does not require a separate extension request for Form 3520.

One important exception: if the trust itself is required to file Form 3520-A and fails to do so, the settlor may face penalties on both forms. Confirm with the CPA that both forms are being filed on time, not just the one the CPA is directly preparing.

What information you need

The trust's name, the trustee's name and address, the trust's taxpayer identification number if one has been obtained, the date the trust was established, and the values of any transfers to or distributions from the trust during the year. This information comes from the annual accounts the trustee prepares. Coordinate with both the trustee and the CPA at the start of the year so the accounts are completed in time for the CPA to prepare the filing before the due date.

For the initial year, the form also requires information about the trust terms, including a copy of the trust deed or a summary of its material terms. This is a one-time requirement at formation, not an annual one.

The penalty regime

The penalty for failure to file Form 3520 when required is the greater of $10,000 or 35 percent of the gross reportable amount for transfers to foreign trusts, and 35 percent of the gross reportable amount for distributions received from foreign trusts. These penalties apply per missed or incorrect filing. On a substantial trust, the 35 percent figure on a year's contributions or distributions produces a penalty number that typically exceeds several years of CPA preparation fees.

The IRS can and does assert these penalties. The offshore account penalty regime has been an enforcement priority for many years and the Cook Islands trust sits squarely within the category of foreign financial arrangements the IRS scrutinises. Voluntary compliance with correct filings is substantially less expensive than discovery of a missed filing through CRS data or other IRS information sources.

General information only. Confirm current requirements and your specific filing obligations with a CPA with Cook Islands trust experience. IRS forms and instructions change periodically.