What is form 1099R

Sounds like you are trying to enter something in the wrong place.  A 1099R is a document that shows money you took from a retirement plan like an IRA, 401k, etc. or pension income.  A 1099INT is for interest you got on an account with a financial institution.  

Are you trying to enter a 1099R?

To enter your retirement income, Go to  Federal> Wages and Income>Retirement Plans and Social Security>IRA  401 k) Pension Plan Withdrawals to enter your 1099R.

Or are you trying to enter a 1099INT?   Go to Federal>Wages & Income>Interest and Dividends>Interest on 1099-INT

What form do you have?  You are stating two 1099 forms.

Form 1099-R is used to report distributions from annuities, profit-sharing plans, retirement plans, IRAs, insurance contracts, or pensions.  Box 7 on the 1099-R form is for the code for what type of distribution you had.

Form 1099-INT is the IRS tax form used to report interest income. 

how will i know if i have to pay taxes on this 

1099R FROM MY 401K

You'll get a 1099-R if you received $10 or more from a retirement plan. Here's how to enter your 1099-R in TurboTax:

1. Open (continue) return if you don't already have it open.
2. Inside TurboTax, search for 1099-R and select the Jump to link in the search results.
3. Answer Yes on the Did you get a 1099-R? screen.
   • If you land on the Your 1099-R Entries screen instead, select Add Another 1099-R.
4. Select which option matches your form and Continue.
5. You can import your form directly from your financial institution by searching or selecting yours from one of the options on the screen. You'll be prompted to enter your financial institution account information, and TurboTax will directly import your forms.
   • If you prefer to type it in yourself, select Change how I enter my form and continue through.