MEXICO CITY—On a rainy Friday night in Mexico’s capital, Antonio ‘Gritón’ Ortiz poured himself a glass of tequila. Across the room, “The Girl from Ipanema” quietly seeped from a paint-splattered radio. “I’ll listen to almost any music while I’m working,” the 60-year-old artist said. “Like Yes! I really like Yes. The progressive rock band. You know them, right?” Water was boiling on the stove, and he poured it into a pre-packaged Korean noodle bowl. It was 10 p.m., time for dinner in Mexico. “I’ve been painting since I was 22, and not all of those years were easy,” he said. “But I do what I enjoy, and so far I’ve been able to make that work.”
For the past 28 years, Gritón has not paid a dime to the Tax Administration Service (SAT), the Mexican equivalent of the IRS. But he is no criminal. In fact, in a country that has lost an estimated $872 billion to money laundering and tax evasion over the past four decades, Gritón is in good standing with the law. Like more than 700 artists across Mexico, he takes part in a Pago en Especie (Payment in Kind) program—the only one of its type in the world—that allows artists to pay federal income taxes with their own artwork…