Castelli & Associates in Baltimore: Tax, Accounting, and Business Advisory for Private Companies

Castelli & Associates provides tax, accounting, and advisory services to closely held businesses and high-income individuals across the Baltimore region, operating as an independent firm rather than part of a national franchise. The practice focuses on privately owned companies, real estate investors, and medical professionals, combining ongoing accounting support with tax strategy and entity structuring. For business owners seeking consistent year-round guidance beyond annual return preparation, the firm sits between the general practitioners handling simple bookkeeping and the large regional or national firms oriented toward Fortune 500 clients.

What Castelli & Associates Does

The firm functions as both an accounting service and a tax planning partner, not merely a preparer for completed years. Work includes controller-level accounting services, bookkeeping system setup and review, tax return preparation for businesses and individual clients, quarterly estimated tax planning, retirement plan structuring, entity formation and conversion analysis, and advisory on significant business transactions. The practice emphasizes proactive tax strategy, which means identifying opportunities during the year rather than at April filing time. This approach suits owners who want to minimize taxes through timing and structure choices, not those seeking the cheapest possible return filing.

Services and Pricing

Annual tax preparation for a business return (S-corp, C-corp, partnership, or LLC) typically ranges from $2,500 to $8,000 depending on complexity, revenue scale, and transaction volume. Individual tax returns for self-employed or business-owning clients run $800 to $3,500 depending on entity count and investment activity. Quarterly bookkeeping and payroll support is priced on an engagement basis, often between $500 and $2,500 monthly for small to mid-sized private companies. Entity formation and restructuring work is typically quoted per project rather than as a percentage of assets.

Confirm current pricing directly with the firm, as engagement fees reflect individual complexity and can shift. The practice does not publish a menu of hourly rates publicly; instead, initial consultations establish the scope and approach an engagement requires.

Comparison to Other Baltimore Accounting Providers

Castelli & Associates differs from tax-preparation-only chains such as Liberty Tax Service or H&R Block locations throughout Baltimore by offering ongoing engagement and business strategy, not just annual return preparation. Those chains are faster and cheaper for straightforward W-2 filers or simple business returns but do not provide quarterly planning or controller-level support. Baltimore also hosts larger regional firms such as CohnReznick and CliftonLarsonAllen, which operate multiple offices and service mid-market to larger clients with corporate structures; Castelli & Associates fills the gap for owners of companies with $1 million to $50 million in revenue who need continuity but find those firms' minimums prohibitive. Smaller solo CPAs throughout the area often handle comparable work but at lower prices; the trade-off is typically less depth on multi-entity or investment strategy.

Who It Suits and Who It Doesn't

This practice works well for owners of established private businesses, medical practices, real estate partnerships, and high-income professionals who expect a relationship extending beyond tax season. Clients who prioritize proactive tax planning over the lowest possible return cost benefit most. It also suits growing companies transitioning from basic bookkeeping to formal accounting systems. Business owners filing 1040s with W-2 income alone, or employees with no business activity, receive adequate service elsewhere for less money.

What the First Engagement Involves

A new client typically begins with an initial consultation to review current accounting practices, tax history, and goals. If the firm accepts the engagement, an information-gathering phase follows, often involving review of prior returns, current accounting records, and entity structure. For ongoing bookkeeping clients, this includes identifying which transactions are in-house versus outsourced and setting up systems or reconciliation procedures. For tax-only clients, the process centers on collecting needed forms and receipts. The firm then proposes a fee and engagement structure, which may include monthly retainers for bookkeeping or a per-return fee for preparation alone.

Hours, Location, and Logistics

Castelli & Associates operates by appointment; specific hours and the address should be confirmed directly with the firm at the time of outreach, as professional accounting offices typically do not maintain walk-in hours. The practice is based in the Baltimore area and serves clients throughout the region and beyond via file sharing and phone meetings. Parking depends on the specific office location; confirm when scheduling a in-person meeting.

A firm that combines ongoing tax strategy with traditional accounting services fills a real need among Baltimore's business owners, particularly those who have outgrown sole preparation but are not yet sized for large firms.