Spurgeon & Martin, a Carlsbad accounting firm established in 1981, maintains audit, tax, and bookkeeping operations at 5055 Avenida Encinas near the Poinsettia Park corridor. The firm's bookkeeping division runs month-end bank-reconciliation and payroll-account workflows coordinated with North County credit unions, sharing the commercial-banking corridor that SDCCU Carlsbad Branch anchors for small-business operating accounts in the 92008 ZIP code. Continuously operating from Avenida Encinas since its 1981 founding, the practice serves small-business and individual clients across Carlsbad and the greater North County market, covering federal and California FTB compliance for entities ranging from sole proprietorships to multi-member LLCs. Audit and financial-statement preparation spans nonprofit compliance, small-business annual reviews, and compilation engagements — deliverables that feed into the investment and retirement-planning analyses assembled by San Diego Tax & Financial Associates for shared North County clients. The firm's highest-complexity engagements involve agreed-upon-procedures reports under SSAE No. 19 attestation standards for HOA reserve-fund audits and nonprofit grant-compliance reviews.