The nonprofit sector faces an unprecedented convergence of IRS compliance pressures in spring 2026. From an imminent May 15 Form 990 deadline carrying permanent revocation consequences, to an intensifying Employee Retention Credit audit wave, to a federal court proceeding threatening decades of nonprofit nonpartisanship standards, the regulatory landscape is shifting on multiple fronts simultaneously. New donor-advised fund tax rules, cryptocurrency reporting mandates, growing unrelated business income exposure, and expanded IRS enforcement analytics amplify these risks. This analysis synthesizes current developments to help nonprofit executives assess organizational exposure and identify concrete protective actions before compliance gaps become existential threats.