More than 40,000 of the airline's staff now book training courses or check their pension contributions online through a company intranet site, which has personalised information for each employee.
The development of the portal is part of a two-year business plan to reduce BA's paper-based processes and eradicate duplication.
By March 2005, BA expects to have saved £50m by carrying out administration online. Savings have come from a number of areas across the business.
The airline's employees have also been encouraged to find answers to IT and administrative queries from helpdesk databases supplied by Rightnow Technologies.
BA has started to replace paper payslips with online forms accessed via the portal. So far, 400 senior managers have opted for electronic payslips and the company hopes to introduce the online system for thousands of staff.
The use of electronic forms will also help BA record and monitor absence rates. The average employee takes 16 days off work, apart from holidays, every year, BA said.
"We are trying to use some of the self-service-type technology for our customers [such as kiosks for collecting tickets] for our own employees," said Bill Franics, programme manager for employee self-service at BA. "Self-administration technology can play an increasingly important part in reducing our costs."
BA is also committed to expanding its online training. About 25% of staff training at the airline is currently done online, using Oracle's ilearning software, and BA hopes to increase this figure to 33%.