We know. You're exhausted and overwhelmed. You just finished your 2017 taxes and now we are already posting about next year's taxes. But simply understanding when and what you have to file throughout the year can save you a lot of frustration at tax time. To avoid headaches (and paying penalties), mark your calendar with the following important tax deadlines. April 17, 2018 Estimated Quarterly Payments If your yoga business pays taxes on a quarterly basis, the first 2018 est