Tax liability on keeping cash in checking account

Hello,

I have recently started working. I dont invest in anything. I have one chase account in which I get my paycheck. If any of checking/saving account become more than 10K or may be 20K, do I have to fill any forms with IRS. All my deposits are from my employer. I dont plan to invest this year. So money will be accumulating in my account. Do i have to worry about anything from tax/IRS point of view?

 

Thanks in Advance