tax loophole

Translations
налоговая лазейка
They used a tax loophole to reduce their financial burden.
Они использовали налоговую лазейку, чтобы уменьшить свою финансовую нагрузку.
Definitions
A tax loophole is a provision in the tax code that allows individuals or businesses to reduce their tax liability through legal means, often by exploiting ambiguities or omissions in the law.