Yes. The IRS will accept your tax return. The purpose of amending a tax return, is to make changes to the original return. Amended returns usually take longer to process then the original tax return.
There is a "where's my refund?" tool that can be used to check on amended tax returns. Please refer to the following IRS link to review the tool and the processing time that is involved.
https://www.irs.gov/filing/individuals/amended-returns-form-1040-x/wheres-my-amended-return-1
