I need to amend my taxes that i already filed to increase the amount of interest paid by my bank

[rosanapeace]

I received a 1099-int and need to adjust it on my return that i already filed how do i do that

[DoninGA]

You will have to wait for the IRS to either Accept or Reject your filed federal tax return.
If the return is rejected you can make the necessary changes and e-file again.
If the return is accepted you will have to amend your original tax return. An amended return, Form 1040-X, can only be printed and mailed to the IRS if the original tax return was not e-filed. The IRS will take up to 20 weeks or longer to process an amended tax return.

Before starting to amend the tax return, wait for the tax refund to be received or the taxes due to be paid and processed by the IRS.

See this TurboTax support FAQ for amending a current year tax return - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-federal-tax-return-curr...

[SharonD007]

Don't make any changes until your tax return is fully processed, which means you have received your refund or if you have a balance due, it's deducted from your account. If your tax return is pending, don't make any changes. 

For more information and instructions, review the TurboTax articles How to Correct Federal Tax Returns, How to File an Amended Tax Return with the IRS and Video: How to Amend Your Tax Return.