Definition of ironclad. 1  1 : sheathed in iron armor âused especially of naval vessels. 2  2 : so firm or secure as to be unbreakable: such asa : binding an ironclad oathb : having no obvious weakness an ironclad case against the defendant.
Best Answer: CR means a credit. If this appears on the balance due line of your statement, it means that you owe nothing and that you are that much ahead of future charges and no payment or acknowledgment is needed.
CRS, developed by the Organization for Economic Cooperation and Development (OECD), is a global reporting standard for the automatic exchange of information (AEoI). The goal of CRS is to allow tax authorities to obtain a clearer understanding of financial assets held abroad by their residents, for tax purposes.