Data quality is key to the successful introduction of RTI. Employers and pension providers should check the accuracy of their employee/pensioner data. This involves making sure that surname, forename, gender, address, date of birth and National Insurance number (NINO) are correct and in the right format for RTI purposes. Employers should also make sure that they add staff to their payrolls who will now need to be included with their RTI submissions, for example, those under the lower earnings limit (LEL).