You can check your e-file status by logging into the e-file tool.
If it was accepted, the link below will provide steps on how to further track your refund.
You will need your, social security number or ITIN, your filing status and your exact refund amount. You can obtain this information from your Turbo Tax account. You can keep checking the IRS website until they provide an update on your return. If it says in process, then they are working on it.
How do I check my e-file status?
https://ttlc.intuit.com/replies/3319882