Ministry organizations, including churches as well as missionaries, are required to report foreign accounts with aggregate balances that exceed $10,000 at any time during the calendar year to the Treasury Department by June 30. If you read my post several months ago, I wrote about this reporting requirement in detail.
Churches, which are not required to file IRS Form 990, are even required to report. So don’t think that because they are not required to file a tax return, they are exempt. And even if a ministry or missionary obtains a tax-filing extension, they are still required to file by June 30. The reason is that this reporting is not considered a part of a tax report or return.