The case centred on charges that the company paid personal expenses like free rent and car leases for executives including Weisselberg without reporting the income, and gave them bonuses as non-employee compensation from other Trump entities like the Mar-a-lago Club, without deducting taxes.
According to testimony during the four-week trial, Trump himself signed the bonus checks annually, paid private school tuition for Weisselberg's grandchildren, authorized the lease for his luxury Manhattan apartment and approved a salary deduction for another executive.
"The whole narrative that Donald Trump was blissfully ignorant is just not real, prosecutor Joshua Steinglass told jurors during his closing argument on Friday.
He said the "smorgasbord of benefits" was designed to keep top executives "happy and loyal."
Republican Trump, who on November 15 announced his third campaign for the presidency, said in a statement he was "disappointed" by the verdict but called the case a "Manhattan witch hunt." Both Bragg and his predecessor who brought the charges, Cyrus Vance, are Democrats.
The Trump Organization separately faces a fraud lawsuit brought by New York state Attorney General Letitia James.
Trump himself is being investigated by the US Department of Justice over his handling of sensitive government documents after he left office in January 2021 and attempts to overturn the November 2020 election, which he lost to Democrat Joe Biden.
Lawyers for the Trump Organization argued that Weisselberg carried out the scheme to benefit himself, not the company. They tried to paint him as a rogue employee. Weisselberg is currently on paid leave and testified that he hopes to get another $500,000 bonus in January
Trump wrote on his Truth Social platform on November 19. that his family got "no economic gain from the acts done by the executive."
Weisselberg, who pleaded guilty in August to concealing $1.76 million in income from tax authorities, testified that although Trump signed checks involved, he did not conspire with him.
He said that the company saved money by paying for his rent, utilities, Mercedes-Benz car leases for him and his wife and other personal expenses rather than raising his salary, because a wage hike would have had to account for taxes.
He said Trump's two sons - who took over the company's operations in 2017 - gave him a raise after they knew about his tax dodge scheme.
By then, Trump was president, and the company was preparing for greater scrutiny.
"We were going through an entire cleanup process of the company to make sure that since Mr Trump is now president everything was being done properly," Weisselberg testified.