The man who prepared Donald Trump's taxes the year that he reportedly posted a loss of over $900million says it is not Trump who made a brilliant and smart move, but rather himself.

'As far as I know, and that only goes through late '96, he didn't understand the code,' said Jack Mitnick in an interview with Today on Tuesday.

'Nor would he have had the time and the patience to learn the provisions. That's a lifetime of experience.'

He then added: 'He was interested in the bottom line, not the detail. Staff under my supervision did his returns - he had no involvement in the preparation.'

Shortly after parts of Trump's tax returns showing his losses om 1995 were released, he tweeted: 'I know our complex tax laws better than anyone who has ever run for president and am the only one who can fix them.'

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Trump's former accountant Jack Metnick said that the Republican hopeful had no knowledge of tax code (above on Inside Edition)

The New York Times reported Saturday that Trump posted a net loss of $915,729,293 in federal taxable income in 1995.

It was already well known that Trump was losing money during the early to mid-1990s, a time when his casinos fell into financial turmoil and some of his businesses filed for bankruptcy.

But the records obtained by the Times show losses so large that they could have allowed Trump to avoid paying taxes for up to 18 years.

The newspaper reported that Trump made only $6,108 in wages, salaries and tips in 1995.

He also reported $7.4 million in interest income and a loss of $15.8 million on his real estate and partnership holdings that year, the newspaper said.

The Times said it based its story on the first pages of Trump's 1995 state income tax filings in New York, New Jersey and Connecticut.

The documents were anonymously mailed to one of the newspaper's reporters.

Mitnick, who prepared Trump's taxes that year, told The Times the documents were authentic, pointing out that they reflect a printing error from his tax preparation software that he corrected by manually inserting some numbers using a typewriter. Those numbers are slightly misaligned on the documents.

Trump's campaign did not challenge the documents' authenticity or the veracity of The Times' story, but Trump threatened to sue the newspaper for making the information public.

'Mr. Trump is a highly-skilled businessman who has a fiduciary responsibility to his business, his family and his employees to pay no more tax than legally required,' the campaign said in a statement released Saturday.

The campaign also said that Trump had paid 'hundreds of millions' of dollars in various kinds of taxes over the years.

Claim: 'I know our complex tax laws better than anyone who has ever run for president and am the only one who can fix them,' wrote Trump (above on Wednesday)

Before running for president, Trump said he would release his tax returns if he ran. But since he announced his candidacy last year, Trump has refused, bucking a tradition to which presidential nominees have adhered since 1976.

Trump has repeatedly said he won't release the documents because he says they're under audit by the Internal Revenue Service and his attorneys have advised against him making them public.

Tax experts and IRS Commissioner John Koskinen have said such audits don't bars taxpayers from releasing their returns.