Hillary Clinton and her husband made $10.6 million last year, mostly from speaking fees and book royalties, according to tax returns her campaign released yesterday — a double-edged show of transparency and political bludgeoning as Donald Trump holds firm on his refusal to release his returns, experts told the Herald.

“This is not going away for him,” said D.C.-based Democratic strategist Matt Bennett, who along with others said Trump’s reluctance to share his tax records stirs speculation that he either isn’t as wealthy as he says or pays little or no taxes. “It’s certainly one or all of those things. What it does is underscores for people that he is trying to pull one over on the public.”

The Clintons paid a combined 43.2 percent of their income to federal, state and local taxes, and donated 9.8 percent — or $1 million — to charity, according to the tax papers.

Releasing her returns throws a spotlight on Trump’s refusal to follow suit — and the common practice of most presidential nominees dating back to the 1970s. The last candidate to buck the trend was Gerald Ford, who released a summary in 1976.

“What is he trying to hide?” asked Clinton spokeswoman Jennifer Palmieri in a statement releasing the Democratic nominee’s tax returns along with a decade-worth of returns from her running mate, Virginia U.S. Sen. Tim Kaine.

Trump has said he will not release his tax returns because they are under audit by the Internal Revenue Service, and his campaign responded to Clinton’s tax return release by raising questions about the 33,000 emails she deleted from her private server.

“Everything she doesn’t want us to see has been digitally shredded or put under lock and key,” Trump spokesman Jason Miller said in a statement. “This document release is nothing more than an attempt at distraction and misdirection by an individual who created and then purged an illegal private email server.”

Former Bay State Democratic party chairman and state Rep. Philip Johnston told the Herald that when it comes to running for the Oval Office — handing out your tax returns is just “part of the deal.”

“It’s just an effort on the part of candidates to show that they’re open about their private interests,” Johnston said. “This is very, very troubling that we have a nominee who refuses to do so. Who knows what else is in there? One can only imagine.”

Former President Bill Clinton reportedly blasted FBI Director James Comey’s claim that Hillary Clinton’s use of the private email server while secretary of state threatened national security, calling the allegation “the biggest load of bull” while taking questions from reporters at the Asian American Journalists Association on Friday.