Many tax amounts affecting businesses have increased for 2021

How much do your employees have to earn in 2021 before they can stop paying Social Security tax? How much can they contribute to 401(k) plans this year? Here are the answers to these and other questions about tax-related inflation adjustments and changes affecting businesses.

2021 tax calendar

To help you make sure you don’t miss any important 2020 deadlines, we’ve provided this summary of when various tax-related forms, payments and other actions are due. Please review the calendar and let us know if you have any questions about the deadlines or would like assistance in meeting them.