There is widespread speculation about Costa Rica implementing a global income tax as part of the IMF bailout scheme. Who knows if it will happen and how long it will take to implement. Also you have to consider foreign tax deductability toward your home country taxes. Either way, here are the proposed new tax tiers for CR.
Up to ¢5 million – 10%
Over ¢5 million and up to ¢12 million – 15%
Over ¢12 million to ¢19 million – 20%
Over ¢19 million to ¢29 million – 25%
Over ¢29 million – 27.5%
https://qcostarica.com/if-your-monthly-income-exceeds-¢683-thousand-you-would-have-to-pay-income-tax/