Provident and Tax (i.e. PAT) is an electronic service provided by CrimsonLogic. Using their system, employers can electronically submit their CPF contribution details, employee salary data to the CPF Board and IRAS. For more information, please contact CrimsonLogic at 6887 7888 (24 hours).   If you wish to register for this service, simply visit the CrimsonLogic's PAT website for a registration form, and submit the completed forms to CrimsonLogic.   Would you like to: Ask Questions on PAT?