I was from the Corporate Tax Planning and Compliance department, where I worked for approx 4 years.
Management is entrenched and blissfully unaware of sentiment on the ground. They favour staff who go out of their way to bootlick, and overlook how these staff will push their actual work to other staff members who are already overworked and under-appreciated. The key issue with the management is that the few who are aware of the extremely toxic culture do not make any attempt to stop it.
Staff are divided into two camps - the bootlickers and the non-bootlickers. The former group will go out of their way to curry favour with management, and as a result have a lot of influence during day to day work and the appraisal process. The latter group will be dumped with significantly more work, yet get rated poorly by the management simply because they do not try to suck up.
Staff turnover has been overwhelming high in the past three years. More than half the department is new. Experienced staff leave simply because their hard work (working ot past midnight almost everyday and being expected to come back to office on weekends) is not appreciated, and the toxic culture makes it unbearable. This is not the place for you unless you can withstand being manipulative, throwing your friends under the bus, and forsaking your morals for the sake of your career.
Toxic culture, vicious cliques in the office, indifferent management