A check writing system for providing a compact convenient system for carrying checks. The check writing system includes a main cover member which includes a front surface and a back surface and is used substantially to provide rigidity for the check writing system to facilitate writing checks, a plurality of check blanks each of which is detachably coupled to the main cover member, and a front cover member which is coupled to the main cover member and used to provide protection for the plurality of check blanks from creasing, stray marks, and wear due to rubbing.