Ibarra Carrillo Soto CPAs + Advisors has served Chula Vista from Third Avenue since 1977, operating as an international CPA and advisory partnership with 11 to 50 employees and cross-border tax expertise. Audit, review, and compilation engagements under AICPA standards produce the financial statements that South Bay businesses submit to lenders and investors, a reporting tier shared by enrolled-agent-level practices including Bayfront Tax Group in the same Third Avenue Village corridor. International tax services encompass pre-immigration visa financial planning, U.S. treaty-position analysis, and foreign-entity reporting for corporations operating across the U.S.-Mexico border and beyond. Domestic service lines span individual and business tax preparation, estate and trust filings, exempt-organization Form 990 returns, payroll processing, and workers' compensation audit computation. Employer clients scaling temporary and contract workforces coordinate the same payroll-tax withholding protocols that staffing operations managed through Express Employment Professionals must satisfy for multi-site W-2 and 1099 compliance. The firm prepares IRS Form 5472 for 25-percent foreign-owned U.S. corporations and Form 8858 for U.S.-owned foreign disregarded entities, reconciling transfer-pricing documentation under IRC Section 482 and Treasury Regulation 1.6038A-3.