IRS code 1301 basically means that filing of returns was done by the individual at least three weeks before but the processing has been delayed. The processing could be delayed due to various reasons. One of the best examples would be the recovery rebate credit. This credit requires the amount a taxpayer got in last year’s stimulus check to calculate the rebate. Although, a major percentage of the tax payers got the right amount, the information filled was incorrect. This leads to processing delays and more the number of taxpayers who have errors in filling the information, greater is the time taken to clear the queue.