1. A modification or correction applied to a previous period, affecting amounts, values, or terms as if they had been in effect from an earlier date
The company implemented a retroactive adjustment to employee salaries dating back to January.
A empresa implementou um ajuste retroativo nos salários dos funcionários com efeito retroativo desde janeiro.
2. In finance and accounting, a change made to past financial records or calculations
The tax authority issued a retroactive adjustment to the previous year's tax assessment.
A autoridade fiscal emitiu um ajuste retroativo à avaliação fiscal do ano anterior.