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NorthlineAdvisory

Services

Accounting, tax and advisory services for growing companies

From your first entity filing to board-ready financials, we cover the full finance lifecycle with fixed fees and a named advisor.

  • Corporate Tax

    Federal, state and city corporate tax planning and filing for C-corps, S-corps and partnerships.

    From $3,500/yr

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  • Sales Tax & VAT-style Compliance

    Nexus studies, registrations and monthly filings across every state where you sell, plus VAT support for cross-border sales.

    From $450/mo

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  • Bookkeeping & Payroll

    Accrual-basis books closed by day 10, plus multi-state payroll, benefits and contractor payments.

    From $650/mo

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  • Business Formation

    Choose the right entity, form it correctly and set up EIN, banking, payroll and tax elections from day one.

    From $1,200 per project

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  • Audit Support

    Audit-ready financials, PBC lists and representation for IRS, state and investor or lender audits.

    From $4,500 per project

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  • Fractional CFO

    Forecasting, fundraising support, board reporting and unit economics from an experienced CFO, part-time.

    From $3,500/mo

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Final pricing depends on transaction volume, entities and complexity. You receive a fixed quote before we start.

FAQ

Frequently asked questions

How much does an accountant cost for a small business in New York?

Our monthly bookkeeping starts at $650 and corporate tax returns at $3,500 a year. Most growing companies combine services into a single fixed monthly fee between $1,200 and $6,000, agreed before we start.

Do you only work with companies in New York?

No. Our office is in Midtown Manhattan, but we serve clients in 38 states through our secure client portal and video meetings. We file in every state where you have obligations.

How quickly can you get started?

After a free consultation we send a proposal within two business days. Onboarding usually takes one to two weeks, and urgent deadlines can be prioritized from day one.

Is my financial data secure?

Yes. Documents are exchanged through an encrypted portal with multi-factor authentication. Access is role-based and our processes are aligned with SOC 2 controls.

Do you offer services in Spanish?

Yes. Several of our advisors, including our tax partner, work with clients in Spanish, and we can provide reports and meetings in Spanish on request.

Get a fixed-fee proposal

Tell us about your business and we will reply within one business day.