Accepted only means the IRS verified some basic info on it so they know it's really from you. After it is Accepted the IRS processes it then approves it before they send the refund.
What does Accepted mean
https://ttlc.intuit.com/community/return-status/help/what-does-accepted-mean/01/26285
What happens after your return is accepted
https://ttlc.intuit.com/community/return-status/help/my-return-got-accepted-what-happens-next/00/265...
When will you get your refund?
https://ttlc.intuit.com/community/refund-status/help/when-will-i-get-my-irs-tax-refund/01/25589
IRS - Questions about Refunds
https://www.irs.gov/refunds/tax-season-refund-frequently-asked-questions
