The tax treaty between Singapore and Barbados entered into force April 25th, 2014. The treaty was signed July, 15th, 2013, and includes the following withholding rates: Dividends - 0% Interest - 12% Royalties -  8% The treaty will apply in Singapore from January 1st, 2016, in regards to taxes chargeable, and applies from April 25th, 2014, in regards to information requests concerning taxes related to taxable periods beginning January 1st, 2015. The treaty will apply in Barbados from January 1st, 2015 for all matters.