Donald Trump has responded angrily to reports his businesses recorded more than $1bn in losses, explaining they did so to avoid paying tax.

In early morning tweets, the US president appeared to confirm much of what was detailed in an explosive report about his financial losses between 1985 and 1994, and claimed avoiding taxes among real estate developers was then considered "sport".

"Real estate developers in the 1980’s & 1990’s, more than 30 years ago, were entitled to massive write offs and depreciation which would, if one was actively building, show losses and tax losses in almost all cases," Mr Trump tweeted.

"Much was non monetary. Sometimes considered 'tax shelter,' you would get it by building, or even buying. You always wanted to show losses for tax purposes....almost all real estate developers did - and often re-negotiate with banks, it was sport.

"Additionally, the very old information put out is a highly inaccurate Fake News hit job!"

Mr Trump's outburst followed a New York Times story which detailed how tax information obtained by the newspaper showed the self-proclaimed billionaire paid no income tax for eight out of 10 years detailed in the documents.

The newspaper said Mr Trump reported business losses of $46.1m (£35.4m) in 1985, and a total of $1.17bn (£900m) in losses for the 10-year period.

The records - printouts from Mr Trump's Internal Revenue Service (IRS) tax receipts - represent the most detailed look into the president's personal taxes yet, after years in which Mr Trump had sought to keep the documents private.

Republican 2020 candidate Bill Weld believes Donald Trump is impeachable

According to the report, Mr Trump's losses mostly came from his business holdings in casinos, hotels, and retail apartment space in his buildings.

It alleges he lost more money than almost any other American individual taxpayer during that time, according to a comparison of his taxes to an annual comparison of high income earners compiled by the IRS.

Mr Trump's defence of his financial behaviour cited "depreciation", which is a special benefit in the US tax code that lets owners of commercial real estate take a deduction from taxable income for a building's natural loss in value.

As reported by Forbes, although the term implies loss, in real estate investing it is a positive with regards to income. Even though the building itself - including the toilets, sinks, rooves etc - depreciates in value, the land does not depreciate.

That means the owner of the asset can take a deduction for the building's depreciation, while simultaneously seeing the value of their real estate investment increase.

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The documents obtained by the NYT do not cover the years of interest to congressional Democrats, who are set to engage in a legal battle with the Trump administration after the Treasury refused to release the president's tax returns.

However, they do provide valuable insight into Mr Trump's business history, and further damage his long-cultivated image as a self-made billionaire with a history of business success.

A lawyer for the president said the tax information was "demonstrably false", and reporting "about the president's tax returns and business from 30 years ago are highly inaccurate". He did not say what specifically was wrong.

The House Ways and Means Committee has asked the IRS to provide Mr Trump's personal and business returns for 2013 through to 2018.

Treasury Secretary Steven Mnuchin, who oversees the IRS, refused to do so on Monday, saying the panel's request "lacks a legitimate legislative purpose".

His move, which had been expected, is likely to set a legal battle into motion. The chief options available to Democrats are to subpoena the IRS for the returns or to file a lawsuit.

Mr Trump is the first president since Watergate to decline to make his tax returns public.