We always knew President Trump was being misleading when he portrayed himself as a self-made man. But until Tuesday’s bombshell Times story, we did not know the breathtaking scale of the deception, or the extent to which his wealth was built on tax evasion.

This raises two questions. First, what can and should tax authorities do about the specific allegations of tax evasion and fraud by the Trump family detailed in the article? Second, what can lawmakers do to ensure that those who inherit extraordinary sums are paying their fair share?

While the statute of limitations has already passed for many of the alleged violations, the Trump family still can be pursued for civil tax fraud. This could result in family members owing back taxes, interest and penalties. New York State and New York City have already announced they will investigate. The Internal Revenue Service and the Department of Justice should, too — potentially by appointing a special counsel.

These agencies should not just look at the estate tax, but also at whether the Trump family committed income tax fraud. For example, did the president and his siblings claim the properties they inherited had a different — and much higher — value for income tax purposes than the lowball valuations claimed for the estate tax?