“Can’t be said enough. The IRs will nail you if you break that rule.”
The IRS couldn’t care less if he releases his tax returns:
Second paragraph: http://thehill.com/policy/finance/270964-irs-nothing-prevents-trump-from-releasing-tax-returns
Go ahead and trust the IRS. My family was put in severe IRS jeopardy when a family member released the family business tax returns while under audit. Two of the people we did business with filed amended returns stopping the IRS audit of them temporarily. The IRS threatened my family member with all types of “crimes” including impeding an audit. Luckily we have a good lawyer. Still cost a ton of $$ to make it go away.
So, I suggest that you take the IRS at their word if they ever show up at your door. “We are only here to review your return.’