Payroll and Human Resources (HR)

No matter what size your company is, what payment frequencies you have, requires RTI and auto-enrolment with pension integration, IT Architechture offers you the award-winning Opera 3 Payroll system from Pegasus Software. This software will cope with your most demanding requirements plus a great deal more.

IT Architechture Ltd has over 20 years’ experience in business management with considerable expertise in deploying and supporting payroll systems. The combination of our expertise and Opera 3 offers you peace of mind and a hassle-free experience.

Opera 3 is a market-leading payroll software which comes with HMRC PAYE and RTI recognition. Opera 3 payroll is powerful, flexible system with added functionality:


Whatever your business size, running single or multi-frequencies, Opera 3 Payroll provides all the required features for you.

NEST Integration

Opera 3 Payroll allows you to create enrolment information and contribution files that can be uploaded to NEST (National Employment Saving Trust).

Online Filing Manager

The Pegasus Online Filing Manager enables quick and effortless electronic RTI submissions via the Government Gateway.


Opera 3 enables the management of all employee-related processes including recruitment, retention, training, disciplinary actions, absenteeism, job changes and salary updates.

Pegasus P11D Organiser

Pegasus P11D Organiser can be used throughout the year as an expenses management system providing an accurate audit trail of all individuals’ benefit and expense items.

For more information on Opera 3 payroll &HR

More than 20 reasons of using Pegasus Opera 3 Payroll