— Services

Eight ways to engage the firm.

We are a tax, advisory, and accounting firm that does its own work end to end. Each service line can stand alone or combine into an embedded relationship. Most clients start with one or two and grow into more as the engagement deepens.

We are unafraid to help our clients elevate as the world’s infrastructure evolves.

The four core areas

The four areas below are the relationships most clients build with us. The full set of named engagements appears in the catalog further down, including more specialized work like Transaction Support, Accounting Infrastructure, and IRS Representation & Tax Controversy.

01 · Tax

Tax done as strategy, not as paperwork.

Year-round tax planning, return preparation, and entity-level work for partnerships, S-corps, and individuals with complexity.

Who it is for: Owner-led businesses and individuals with multi-state, multi-entity, or partner-level complexity in their tax picture.
What it solves: Most firms file what happened. We model what is going to happen, optimize before the year closes, and make sure your filings are tight, defensible, and current with NY-specific rules like PTET, NYC GCT, and residency.
Why BYC is different: Senior-led, judgment-driven, and structured around the year, not just the deadline.

See the tax engagement →

02 · Advisory

The structural conversations most firms skip.

Entity design, S-corp conversions, partner buy-ins and buy-outs, succession planning, and the questions that should have been asked years ago.

Who it is for: Businesses crossing thresholds: growth, partner changes, state expansion, ownership transitions.
What it solves: The wrong entity structure costs more than the right one across a five-year horizon. We model the decision, document the rationale, and execute the change cleanly.
Why BYC is different: We treat advisory as a discipline, not a deliverable. The conversations happen before the structure is locked in, not after.

See the advisory engagement →

03 · Fractional CFO

Embedded financial leadership when the business is ready.

Monthly close, cash flow modeling, board-grade reporting, and strategic conversations for businesses past the bookkeeper stage.

Who it is for: Owner-led and growing businesses, typically $1M to $10M in revenue, where the financial function needs to run on a real cadence.
What it solves: You stop making decisions on a bank balance and start making them on a forecast. The monthly cycle becomes predictable. The strategic questions get answered with numbers behind them.
Why BYC is different: Same-day responses as the default, senior-only staffing, and a CFO who actually knows your business by month four.

See the fractional CFO engagement →

04 · AI Advisory

Practical AI inside the financial function.

Tool selection, workflow automation, and operational AI for the parts of the business where it actually pays off.

Who it is for: Businesses curious about AI but skeptical of the hype. Owners who want to stop hearing about it and start using it.
What it solves: We help identify the workflows where AI compresses real time, the ones where it creates risk, and the ones to leave alone. Then we set them up properly.
Why BYC is different: We use these tools daily inside our own practice. We bring what works. We do not bring what does not.

See the AI advisory engagement →

Not sure which engagement fits? Start the conversation →

The full catalog

Eight named engagements, in priority order.

Infographic 04 — The Full Catalog of Services

By&CoBakman Yusupov & Co., CPA

04 · The Work
Eight named engagements

Services & engagements

Eight ways to engage the firm.
Most clients start with one or two.

Each service line can stand alone or combine into an embedded relationship. The core areas sit at the center; the specialized engagements orbit around them.

· Core

01 Tax