Attrition Rate
Attrition Rate measures the percentage of employees who leave an organisation voluntarily during a given period, and in Indian IT and BPO companies it is tracked as a key operational and cost indicator because high attrition inflates recruitment, training, and project continuity costs.
The Indian IT services and business process outsourcing industry employs millions of people and has historically experienced among the highest employee turnover rates of any major industry globally. Understanding attrition is therefore central to analysing the cost structure, operational resilience, and competitive positioning of companies in this space.
Attrition is calculated by dividing the number of voluntary resignations during the trailing twelve months by the average employee base over the same period, expressed as a percentage. Companies typically compute attrition on a last-twelve-months (LTM) basis and disclose it quarterly. Some companies exclude involuntary exits (lay-offs, performance-based separations) from the numerator to show only voluntary attrition, which is more directly linked to employee satisfaction and competitive labour market conditions.
Attrition at large Indian IT companies has fluctuated considerably with business cycles. During the 2021-22 tech hiring boom, voluntary attrition at companies such as Infosys and Wipro spiked to 25 to 28 per cent annualised — meaning that more than a quarter of their workforces resigned each year. This created enormous pressure on delivery continuity, billing rates, and costs, as companies had to offer double-digit salary hikes and signing bonuses to retain and attract talent. By 2023-24, as global tech spending moderated and alternative employers reduced their own hiring, attrition across Indian IT majors declined to the 12 to 16 per cent range.
The cost of attrition is multidimensional. Direct costs include recruitment fees, background verification, and onboarding. Indirect costs — harder to quantify but often larger — include the ramp-up time for a new employee to reach the productivity level of the departing employee, the knowledge loss on client accounts, and the potential damage to client relationships when account teams frequently change. For a company with 200,000 employees at 20 per cent attrition, this implies replacing roughly 40,000 people per year, a logistical and financial burden of substantial magnitude.
In the BPO segment, attrition tends to be even higher than in pure IT services, often reaching 40 to 60 per cent annualised for voice-process customer service roles. This reflects the more transactional nature of the work, lower wages, and limited career advancement clarity for entry-level agents. Companies like Firstsource Solutions, Mphasis, and WNS Holdings manage attrition as a core operational variable alongside utilisation and productivity.