Even though salary payments are not declared in Estonia, they are not tax-free. It’s your own responsibility to learn whether and where you have a tax obligation regarding the received salary, and report and pay the relevant taxes. Here you need to take into account your actual legal status of tax residency and the country where you actually perform your duties. Unfortunately, we can't assist you with this yet. However, please be ready to provide tangible evidence about the actual tax declarations and payments in your location upon a request by Estonian tax authorities or Xolo.