The word "taxing" means something that is difficult, tiring, or demanding. It could refer to tasks or situations that require a lot of effort or mental strain. Full definition
This does not necessarily seem fair, when the top rate of tax on incomes exceeding # 150,000 has been cut from 50 % to 45 %. (theconversation.com)
The bill provides a $ 400 state income tax credit for volunteer firefighters and ambulance workers who have been active at least four? (queenscampaigner.com)
As the term suggests, it's the amount of taxes paid in cash each year. (canadianbusiness.com)