How to Eliminate Buddy Punching on Construction Sites

Buddy punching — where one worker clocks in on behalf of another — is one of the most persistent payroll fraud issues in UK construction. Industry estimates suggest it costs firms between 2% and 5% of total payroll spend annually, translating to tens of thousands of pounds lost on mid-size projects alone.

The root cause is straightforward: traditional sign-in sheets and swipe cards are easily shared. A worker running late asks a colleague to sign them in. Over weeks and months, these small acts of time theft compound into significant financial leakage that erodes project margins.

Modern workforce management platforms are tackling this with a combination of biometric face recognition and GPS geofencing. Biometric verification ensures that only the registered individual can clock in, while geofencing confirms they are physically present at the correct site location. Together, these technologies make buddy punching virtually impossible.

Chime's face recognition technology works even in challenging site conditions — hard hats, dust, varying light levels — with a verification time of under two seconds. Combined with real-time GPS location data, site managers get an accurate, tamper-proof attendance record without any additional administrative burden.

The impact goes beyond fraud prevention. Accurate attendance data flows directly into payroll processing, eliminating manual reconciliation and reducing payroll errors. Clients using Chime report payroll processing time reductions of up to 70% and near-total elimination of attendance disputes.