By using the term "generally" the interest starts 45 days after 7/15/2020 so don't start counting the interest just yet ... they should get caught up by then.
https://www.irs.gov/businesses/small-businesses-self-employed/interest-for-individuals
- If you file your return on or after April 15, IRS has an administrative time (typically 45 days) to process your return without paying interest on your refund.
- Your return must be complete and signed.
- If IRS pays you interest, then interest on the refund will start on the return due date, late filed return received date, or date the payment was made, whichever is the latest.
- The return due date is generally April 15.
