Trump's tax plan could preserve millions in savings for his businesses

His plan would maintain companies' ability to lower tax liability by taking on debt

President Donald Trump’s tax-overhaul proposal could preserve millions of dollars in savings for companies controlled by his family.

Companies that are part of the Trump Organization pay more than $20 million a year in interest on their debts, according to a Wall Street Journal analysis of financial disclosures and other public information about the companies’ outstanding loans and their interest rates.

Under current tax law, those interest payments can be deducted from a taxpayer’s total taxable income, reducing the amounts owed to the government.

The Journal’s estimate of $20 million is conservative, meaning Mr. Trump’s or his companies’ tax savings