Here are 6 details you need to know about Trump's tax troubles

The New York Times on Sunday published a major report into US President Donald Trump's federal income tax affairs, weeks ahead of the November 3 election when he hopes to win a second term.

Here are some of the allegations made by the paper, which said it had viewed tax data dating back 20 years.

-- Trump paid no federal income taxes in 11 of 18 years that the paper examined

-- In 2017, after he became president in the 2016 election, his federal income tax bill was only $750

-- He reduced his tax bill via a $72.9 million tax refund that is the subject of an Internal Revenue Service audit

-- Many of his golf courses report losing large amounts of money

-- Hundreds of millions of dollars in loans he personally guaranteed will soon be due for repayment

-- He took tax deductions on residences, aircraft and $70,000 in hairstyling for television