MONTHLY BOOKKEEPING FOR NEW JERSEY

Reviewed by Robert Mitchell, Founder/Managing Partner, OneBooks

Certified QuickBooks ProAdvisor · More than 40 years of financial and executive experience

Reviewed: October 2026

Reliable books.
Better business.

Monthly bookkeeping for New Jersey small businesses.

Dedicated bookkeeper. Senior review. Always filing-ready.

Dedicated
Bookkeeper

QuickBooks
Experts

Month-to-month
No Contracts

From
$300/mo

Book a Free Discovery Call
Get a Fixed Monthly Quote
  • No obligation
  • Cancel anytime
  • Speak directly with Bob

5.0-star Google rating based on 18 reviews

10+ Years

Helping NJ Businesses

INTUIT QuickBooks

ProAdvisor

us-map

U.S.-Based

Team

24-48 Hour

Response Time

100+

Businesses Served

WHAT IS MONTHLY BOOKKEEPING?

Monthly bookkeeping for New Jersey small businesses

Monthly bookkeeping is the ongoing service of recording, categorizing and reconciling your financial activity every month so your books stay accurate and filing-ready all year.

OneBooks is a New Jersey firm based in Wyckoff (Bergen County). A dedicated bookkeeper handles the work in QuickBooks Online and a senior review manager checks it, delivering clean monthly Profit & Loss and Balance Sheet reports. Pricing starts at $300/month-most NJ small businesses pay $300-$700-with no long-term contracts.

Every OneBooks bookkeeper is required to earn QuickBooks Online ProAdvisor certification, and completed monthly work is reviewed by a Certified ProAdvisor before it is delivered.

EVERY MONTH YOU GET

  • A dedicated bookkeeper and a senior review manager
  • Bank, credit card, and loan reconciliations
  • Transaction categorization and cleanup
  • P&L, Balance Sheet, and supporting schedules
  • NJ sales-tax figures kept reconciled and ready
  • Coordination with your CPA

PRICING

How much does monthly bookkeeping cost in New Jersey?

Monthly bookkeeping at OneBooks starts at $300/month and most small businesses pay between $300 and $700, depending on transaction volume, complexity, and business structure. After a Discovery Call we provide custom pricing, so you only pay for the support your business actually needs with no long-term contracts and full month-to-month flexibility.

Starting price

$

300

/mo

Entry point for simpler books

MOST SMALL BUSINESSES

$

300

-

$

700

Per month, by volume & complexity

Commitment

Month-to-month

No long-term contracts

HOW IT WORKS

What happens each month

01
Transaction sync & review

Activity syncs from connected accounts into QuickBooks Online and your team reviews it.

02
Categorization

Transactions are sorted into the right accounting categories so reports reflect real activity.

03
Reconciliation

Bank, credit card, and loan accounts are reconciled against official statements.

04
Review-manager oversight

A review manager runs quality control on reconciliations and classifications.

05
Report delivery

Monthly financial statements are prepared and delivered through QuickBooks Online.

06
Communication & adjustments

If unusual transactions, missing information, or account discrepancies appear, your bookkeeping team communicates with you to resolve them before closing the books.

BUILT FOR NEW JERSEY

Keep ahead of New Jersey's filing calendar

New Jersey businesses face a recurring filing calendar-sales tax, payroll, and state returns that don’t wait for year-end. Monthly bookkeeping keeps your numbers reconciled and your filings ready as each deadline arrives, instead of scrambling to reconstruct the year every spring.

Due the 20th

NJ sales tax returns are generally due the 20th of the month after each quarter (Apr 20, Jul 20, Oct 20, Jan 20). Monthly reconciliation means each return is ready on time, not a last-minute rebuild.

6.625%

New Jersey's statewide sales tax. Accurate monthly books mean you track and remit the right amount through the Division of Taxation - with no year-end surprises.

Wyckoff, NJ

We're based in Bergen County and support small businesses across New Jersey - Newark, Jersey City, Hackensack, Morristown, and the Shore-entirely through QuickBooks Online. See all OneBooks New Jersey bookkeeping services.

Monthly bookkeeping by county

TRUSTED BY BUSINESS OWNERS ACROSS NEW JERSEY

Not to brag, but everyone we work with seems to say the same thing.

Scott Piro
Robert and his team are experienced financial professionals. I have relied on Robert to prepare documents that have stood up to Forensic court review. I would highly recommend hiring him and his firm . He has also provided my small company with the advice and guidance of a big company CFO.
Joseph Chinnici
I had the pleasure of working with Robert to learn how to use QuickBooks for my small business. He was incredibly knowledgeable, patient, and professional throughout our sessions.
Anthony Baum
I am very pleased with the quality of work Robert and his staff have put in to help us reorganize our books and would highly recommend their services. Robert will go above and beyond to understand, explain and advise, and to help you have a clearer picture of the state of your finances.
Leah Bienstock
Highly recommend Bob Mitchell for bookkeeping! He is an expert at quickbooks. He has a lot of patience and trained me to become more proficient on using quickbooks online.
Kenny A.
Working with Onebooks has been a pleasure, Robert has given us the ability to see our company financials much clearer than ever before. Roberts mentoring and coaching is helping us develop pathways.
Elizabeth Gooden
Robert helped me manage a mess and made it very simple. I would highly recommend him. He is efficient, organized and knowledgeable and made things so much easier for a self-employed person who doesn't have time to handle such important matters.
Fernando Tous
Despite being a small business, I felt like I received top-notch assistance from Robert. I highly recommend his services to anyone looking to master QuickBooks.
Louisdon Pierre
Robert is savvy with the software and his professional advice is reassuring and exceptional. We contracted his services to help us on an ongoing basis. I truly feel at peace with the accounting of the business.
Patricia Bennet
OneBooks has taken care of my books for the last 2.5 years. It has made my life so much easier. My taxes are able to be done yearly correct and timely. I don't have to deal with costly filing extensions any longer. Mr. Mitchell is professional and makes himself available
Randall Innis
I have been using this company to handle my bookkeeping for over 5 years and it is absolutely the best! Mr. Mitchell is extremely customer service oriented and attentive to your business
Benjamin Kiraly
Robert is more than a bookkeeper he is a entrepreneur with the knowledge and know-how to make sure you are on the right track! I highly recommend him and his team.
Mark Cordes
Robert has been a tremendous help in transitioning our bookkeeping to QuickBooks. Very helpful and knowledgeable!
Lynn Taylor
Robert is responsive, professional and very knowledgeable in all things QuickBooks. I would highly recommend.
Charlotte Baldassari
I have worked with Robert at OneBooks several times this year to clean up my books and record some tricky transactions. He is knowledgeable, quickly spotting items that need to be addressed. What sets him apart is that he educates on why and how to correct it so I can avoid mistakes in the future. All this and he is very personable and friendly to work with.
Dorothy P.
I have worked with Robert for 6 years. He is extremely knowledgeable and has assisted me with my accounting and quickbooks. His services have allowed me to concentrate on my business rather then spend needless hours on my bookkeeping.

Call today.

Sleep tonight.

Book your free 30-minute discovery call directly with Bob.

30 minutes

A focused, no-obligation conversation.

Speak directly with Bob

Get answers from a dedicated bookkeeper who understands NJ businesses.

No obligation

Just honest advice and a clear recommendation.

Fixed monthly pricing

Custom pricing based on your needs with no long-term contracts.

Prefer to talk now?

888-665-5085

Email us anytime

info@onebooks.co

Wyckoff, NJ (Bergen County)

Serving businesses across all of New Jersey.