If you are a permanent resident of the DR and do not have a residence in Canada, you do not have to pay income tax or declare money made in the DR to the Canadian Government. If you are retired, working in the DR but returning to Canada within the year, you have to fill out a income tax form for Canada. If in doubt phone the income tax department. I know that if you are retired with a government pension, the Canadian government will with-hold 25% of your pension for income tax. The DR government will not tax your pension. Canada does have a tax agreement with the DR government.