You might want to ask your tax preparer about Benford's Law. If he/she can't do it instantly, then you might want to get someone else.
The IRS has been using it for years to flag audit candidates. Automated returns make it easier.
Audits increased 21% last year over the year before. The overall odds of audit may be low, but if an itemized return does meet Beford's Law, your odds of scrutiny go up sharply.