and keep in mind that the IRS computer are processing many millions of tax returns (both personal and business), so that takes time.
In addition, the IRS performs a number of reasonableness checks, the details of which they do not disclose. But here are some ideas: Are your deductions reasonable relative to your income? Has there been a significant change from last year? Is a 20 year old taxpayer claiming to support 4 dependents on a $15,000 income? You get the idea.
