Professional Financial Services of San Diego Inc on Allison Avenue in La Mesa pairs Enrolled Agent credentials with a Master of Science in Taxation, handling individual, business, and retirement-account tax planning with IRS representation authority at all administrative levels. Business-owner engagements span S-corporation reasonable-compensation analysis, qualified business income deduction calculations under IRC Section 199A, and wealth-accumulation strategies coordinated with firms like San Diego Tax & Wealth Management on Alvarado Road. CTEC-registered preparers handle California-specific compliance including FTB Schedule CA adjustments, use-tax reporting on out-of-state purchases, and LLC annual fees calculated against total-income thresholds set by the Franchise Tax Board. Estate and retirement planning extends to Roth conversion laddering, Social Security benefit-timing analysis, and beneficiary-designation reviews for traditional IRA and 401(k) rollovers. Payroll processing and quarterly Form 941 filings integrate with accounts-payable workflow for small businesses banking through local institutions like Cabrillo Credit Union. Highest-complexity engagements include multi-year amended returns requiring Form 1040-X net-operating-loss carryback elections and California FTB Schedule X NOL recomputation under state conformity rules.