As an independent contractor, you may owe quarterly taxes for your Uber earnings. Here are estimated quarterly deadlines:
When to Pay Estimated Tax:
Payment Period Due Date
January 1 - March 31 April 15
April 1 - May 31 June 17
June 1 - August 31 September 16
September 1 - Dec 31 January 15* of the following year.
You can learn more on the IRS website (linked below).