Are digital copies of my receipts accepted by the IRS?

Yes. The IRS will accept images of documents, such as receipts, as long as (1) they are an accurate reproduction with the intention of replacing the original paper document, (2) it gives the same information as the paper document, and (3) the important details of the document are not obscured (e.g., due to resolution, tone, […]

Can I throw out my paper receipt after I have captured the image?

For any receipts used to support statements made on your tax return, you can destroy the paper receipt if the image you took of the receipt complies with the IRS Standards for electronic records and includes all necessary information. Be sure to check the guidelines of the country in which you are filing taxes.