G&G Office/Business Services provides tax preparation in Chula Vista from a G Street location in the city's downtown commercial district near Third Avenue. Individual and business return preparation covers federal Form 1040 filings, California Form 540 state adjustments, and Schedule C self-employment calculations — financial documentation that divorce and family-law proceedings at firms including Flat Rate Divorce require when establishing spousal income and asset valuations. The practice handles W-2 wage-earner returns, Social Security benefit taxation, and retirement-distribution reporting for clients across Chula Vista's 91910 zip code. Business filers receive Schedule C profit-and-loss preparation and quarterly estimated-tax calculations, with the resulting income records feeding into the liability-assessment process that carriers including Fiesta Auto Insurance & Tax Service use when quoting commercial and personal-auto policies. The firm prepares IRS Form 8962 Premium Tax Credit reconciliations and Form 8889 Health Savings Account reporting, calculating the advance-premium tax-credit clawback threshold against modified adjusted gross income.