As the tax filing deadline nears, many are treading a minefield of rules on foreign assets, the details of which were uploaded to taxpayers' Income Tax (I-T) portal accounts this month. Over the weekend, several well-heeled taxpayers received SMS alerts from the I-T department, reminding them to disclose overseas bank accounts, properties, and ownership in companies and trusts in 'Schedule FA' of the appropriate income tax return form by July 31.