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A440 BOOKKEEPERS

KEEPING YOUR BOOKS IN TUNE

A440 Bookkeepers Bookkeeping for small business and creative professionals.

About

ABOUT

I’m Michael O’Neill, a Brooklyn-based bookkeeper for freelancers and small businesses. I help you stay organized by accurately tracking income and expenses throughout the year—so tax time is easy and stress-free.

I started bookkeeping in 2006 as an office manager at a props fabrication studio and have since worked with creatives and small businesses across many industries, including therapists, designers, and restaurants. In 2020, I expanded into tax preparation, which strengthened my bookkeeping skills and added valuable perspective.

 

Outside of accounting, I work in music and performing arts. As a freelancer myself, I understand how busy things get—and how powerful well-kept books can be. My goal is to provide a smooth, judgment-free bookkeeping experience that’s clear, productive, and maybe even fun.

Why A440?

A440 (pronounced “A four forty”) refers to an international tuning standard for the musical note “A” that vibrates at a frequency of 440 Hz. Just as the oboe plays this note so that the rest of the orchestra can tune their instruments, my services will ensure that your books are

exactly where they should be.

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Services

SERVICES

RETAINER

Ongoing assistance with bookkeeping questions at any time 

 

Monthly reconciliation of accounts

Monthly Profit and Loss Statements

 

Balance Sheet preparation

 

SETUP/CLEANUP

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One time projects to get your books where they need to be

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QuickBooks setups and configuration

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Prior year reconciliations

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Review for accuracy and efficiency

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CONSULTATIONS

1-hour virtual meeting to discuss your bookkeeping questions

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QuickBooks tutorials

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Review of your books

Tax time readiness​

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Pricing

MONTHLY RETAINER PRICING

BASE TIER
STARTING AT $400/MONTH

Up to $250K gross annual income

Up to 3 financial accounts

Fewer than 50 transactions/month

ELEVATED TIER
STARTING AT $600/MONTH

$250K - $500K gross annual income

Up to 5 financial accounts

50 -150 transactions/month

PEAK TIER
STARTING AT $750/MONTH

$500K+ gross annual income

5+ financial accounts

150+ transactions/month

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Testimonials

TESTIMONIALS

"Michael has been an invaluable addition to support our small design business; keeping our books in order and coordinating seamlessly with our accountant at tax time. He is responsive, positive and open to finding solutions that fit our needs.In short, his work allows us to focus on the work we like to do." ​​​

 

 

 

 

Cemre - Architect

Contact
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CONTACT

Please reach out with any questions you may have, or to request a pricing quote:

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SOUNDTRACK

SOUNDTRACK

Here’s a few albums that are often playing in the office:

© 2026

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