For example, insurance costs in 2017 were listed as $744,521 in tax documents and $457,414 in loan records.

Then there was the underlying lease. Trump technically doesn’t own 40 Wall Street. He pays the wealthy German family that owns the property for the right to rent the building to tenants. In 2015, both Trump’s report to tax authorities and a key loan disclosure document asserted that Trump’s company paid $1.65 million for these rights that year. But a line-by-line income and expense statement, which Trepp gathered from what the company reported to the loan servicer, reported the company paid about $1.24 million that year.

“I don’t know why that would be off,” said Jason Hoffman, who is chair of the real estate committee for a professional association of certified public accountants in New York state. Like other experts, he said there are legitimate reasons why tax and loan filings might not line up perfectly. But Hoffman said the firm where he works makes sure the numbers match when it prepares both tax and loan documents for a client — or that it can explain why if they don’t.

Financial information for the Trump International Hotel and Tower raises similar questions. Trump owns only a small portion of the building, which is located on Columbus Circle: two commercial spaces, which he rents out to a restaurant and a parking garage. Trump’s company told New York City tax officials it made about $822,000 renting space to commercial tenants there in 2017, records show. The company told loan officials it took in $1.67 million that year — more than twice as much. In eight years of data ProPublica examined for the Columbus Circle property, Trump’s company reported gross income to tax authorities that was typically only about 81% of what it reported to the lender.