The countries that I would be inquiring about are each pair of countries that are relevant to a situation (the country you are a resident or citizen of, and the country where the income is generated). For each group of countries, the situation will be different and would be applicable if you earn income in more than two tax jurisdictions.Federal taxes and provincial taxes are in place in Canada. I strongly suggest you to visit Tax Shark to learn more about this.Provincial taxes are calculated as a percentage of the federal taxes, so the effect of these taxes in total is more difficult to predict. Taking a look at your historical tax returns and looking at the entire amount paid in taxes is the best way to know how much taxes you pay.
Using tax calculators or asking your tax preparer to estimate the combined effect are other methods of preparing for this situation. People tend to look at the federal rates, but in addition to that, they underestimate that there is also a provincial tax rate. Related to this concept, you will reduce your federal taxes payable and your provincial taxes payable as you lower your taxable income. If your revenue is high, in a situation where the provincial tax rates are progressive, the provincial taxes will go up at a faster rate. Use them as much as you can if you are eligible to receive tax credits. With every budget, these can change and they sometimes expire – so an up-to-date source of tax information is highly recommended here. It should also be remembered that governments issue tax credits to encourage investment in a sector, or to change consumer purchasing patterns. When you see that too much money from a credit is lost by the government, or the desired influence has been largely achieved, the credit is likely to be modified or deleted.