Catch-Up and Cleanup Bookkeeping Services
Months or years behind on your bookkeeping? OneBooks reconstructs missing transactions, reconciles every account, corrects QuickBooks Online errors, and brings your books current — so you have accurate, tax-ready financial records and can move forward with confidence.
No judgment. No lectures. We fix the books and get you moving forward.
What Is Catch-Up and Cleanup Bookkeeping?
Catch-up bookkeeping brings overdue financial records up to date when bookkeeping has not been completed for months or years. Cleanup bookkeeping corrects bookkeeping that was completed incorrectly, including unreconciled accounts, duplicate or misclassified transactions, incorrect balances, and other QuickBooks errors. OneBooks provides both services for businesses that need accurate, current financial records for management, tax preparation, lenders, or their CPA.
What's the Difference Between Catch-Up and Cleanup Bookkeeping?
Catch-up bookkeeping brings missing months or years of bookkeeping up to date. Cleanup bookkeeping corrects bookkeeping that was already entered but is inaccurate, unreconciled, duplicated, or misclassified. Many businesses need both. OneBooks handles the entire process inside QuickBooks Online, reconstructing the accounting record month by month and reviewing the completed books before delivery. If QuickBooks Online itself is the problem, see whether to repair or restart QuickBooks Online.
| Catch-Up Bookkeeping | Cleanup Bookkeeping | |
|---|---|---|
| The problem | The bookkeeping was never done | The bookkeeping was done incorrectly |
| What it looks like | Missing months or years of records | Unreconciled accounts, duplicates, wrong categories |
| Common trigger | Overdue tax return, loan application, sale of the business | CPA rejected the file, numbers don't reconcile, prior bookkeeper left |
| What OneBooks does | Enters and categorizes the missing history, then reconciles it | Corrects duplicates, misclassifications, and balance-sheet errors |
Most multi-year projects require both. OneBooks quotes them together as a single fixed-price engagement.
What OneBooks handles
- Historical transaction entry and categorization
- Bank and credit-card reconciliations
- Duplicate and missing transactions
- Misclassified income and expenses
- Payroll and sales-tax bookkeeping issues
- Balance-sheet cleanup
- Accounts receivable and payable cleanup
- Financial-statement reconstruction
- CPA-ready and tax-ready reporting
Who Actually Does Your Bookkeeping?
Every OneBooks engagement is performed by U.S.-based bookkeepers. Every OneBooks bookkeeper is required to earn QuickBooks Online ProAdvisor certification, and completed cleanup is reviewed by a Certified ProAdvisor before financial statements are delivered. OneBooks does not outsource client files offshore. The same US-based team reconstructs your books throughout the project, and every completed catch-up receives a senior review before it is delivered to you or your CPA.
Handing over several years of bank statements requires trust. You should know who is opening those records, where they are located, and what they are qualified to do. OneBooks staff are US-based, trained in QuickBooks Online, and work directly with you throughout the engagement — there is no offshore handoff and no rotating cast of contractors.
How Far Behind Are You?
Whether your business is one year, three years, five years—or even further—behind, OneBooks can review your records, determine what information is available, and develop a plan to reconstruct and bring your bookkeeping current.
OneBooks handles backlogs ranging from a few missing months to five or more years of unrecorded activity. The work changes as the backlog grows: a single year is mostly data entry and reconciliation, while a multi-year backlog involves correcting opening balances and errors that have compounded across prior years.
Still straightforward
Twelve months of transaction entry and reconciliation. Records are usually still available and the prior year often closed cleanly, so OneBooks can work forward from a reliable starting point.
Problems compound
Opening balances are frequently wrong, prior-year errors carry forward, and bank access to older statements may have lapsed. OneBooks establishes a defensible starting balance, then rebuilds each year in sequence.
Still solvable
Usually involves unfiled returns alongside the backlog, often requiring reconstruction from bank statements alone. OneBooks has rebuilt multi-year histories where the original bookkeeping was never entered at all.
Do You Need Catch-Up or Cleanup Bookkeeping?
OneBooks catch-up and cleanup services are built for businesses that have fallen behind, inherited unreliable records, or need accurate financial statements for a deadline they cannot move. If your books do not currently reflect what the business actually earned, this is the service that fixes it.
- 3 months, 12 months, or several years behind
- Preparing overdue tax returns
- Dealing with messy or unreliable QuickBooks records
- Missing reconciliations
- Changing bookkeepers or accountants
- Applying for financing or selling the business
- Trying to determine what the business actually earned
How Much Does Catch-Up Bookkeeping Cost?
Most OneBooks catch-up projects fall between $300 and $9,000, with simple engagements starting near $300. Backlogs of more than three years are quoted on request. Pricing depends on how many months are involved, transaction volume, the number of bank and credit-card accounts, payroll, and the condition of the existing QuickBooks Online file.
| How Far Behind | Typical Price Range | Typical Timeline |
|---|---|---|
| 1–3 months | $300 – $750 | Several weeks |
| 4–6 months | $750 – $1,500 | Several weeks |
| 7–12 months | $1,500 – $3,000 | Several weeks |
| 1–2 years | $3,000 – $6,000 | 1–2 months |
| 2–3 years | $6,000 – $9,000 | 2–3 months |
| More than three years | Request a quote | Timeline provided after review |
Every OneBooks project is quoted at a fixed price before any work begins. The ranges above reflect typical completed engagements — your assessment produces an exact number, and that number does not change once the project starts.
Backlogs of more than three years are quoted on request. OneBooks reviews the QuickBooks Online file and the available records first, then provides a fixed price and a timeline before work starts.
How Long Does Catch-Up Bookkeeping Take?
Books up to twelve months behind generally take several weeks. A one-to-two-year backlog generally takes one to two months, a two-to-three-year backlog generally takes two to three months, and backlogs of more than three years receive a timeline after review. The schedule depends heavily on how quickly statements and access are provided — projects where records arrive promptly finish substantially faster.
Three factors drive the schedule:
- How quickly bank, credit-card, and payroll records are provided
- Whether QuickBooks Online access is available at the start
- How many accounts require month-by-month reconciliation
If you are working against a filing deadline, tell OneBooks during the assessment. Projects tied to a fixed date are scheduled differently from open-ended cleanups.
How the OneBooks Catch-Up Process Works
OneBooks follows a seven-step process: assessment, document collection, reconstruction, reconciliation, cleanup, senior review, and final financial statements. Each step is completed before the next begins, and no engagement is delivered until a senior reviewer has checked the reconciliations and balance-sheet accounts.
Assessment
OneBooks reviews your QuickBooks Online file, connected accounts, backlog, and current bookkeeping condition, then quotes a fixed price.
Document Collection
OneBooks identifies the bank statements, credit-card statements, payroll reports, and merchant reports required to rebuild the period.
Reconstruct & Categorize
Missing transactions are entered and historical activity is categorized correctly inside QuickBooks Online.
Reconcile Every Account
OneBooks reconciles bank and credit-card accounts month by month, so every balance ties to a statement rather than an estimate.
Cleanup & Correct
Duplicates, misclassifications, balance-sheet errors, incorrect opening balances, and uncategorized transactions are corrected.
Senior Review
A senior OneBooks reviewer checks reconciliation accuracy, classifications, and unusual balance-sheet items before anything is released.
Final Financial Statements
You receive an updated Profit & Loss, Balance Sheet, and supporting reports, ready for your review and for your CPA.
What We Need to Get Started
To begin a catch-up, OneBooks generally needs bank statements, credit-card statements, QuickBooks Online access, and payroll reports for the period involved. Missing records do not prevent a cleanup — OneBooks can often reconstruct activity from whatever documentation still exists.
- Bank statements
- Credit-card statements
- QuickBooks Online access
- Payroll reports
- Merchant processor reports
- Loan statements
- Prior tax returns when relevant
Missing records do not automatically prevent a cleanup. OneBooks regularly reconstructs activity from bank statements, merchant processor reports, payroll systems, and prior tax returns when the original records are gone.
Behind on Your Taxes Too?
Most businesses several years behind on bookkeeping are also behind on tax filings. Accurate books are the prerequisite: a return cannot be prepared from records that were never entered or never reconciled. OneBooks rebuilds and reconciles the underlying bookkeeping so your CPA or tax preparer has supportable financial statements to file from.
OneBooks performs the bookkeeping. Your CPA or tax preparer files the returns.
If you do not have a tax preparer or a CPA to assist you, OneBooks can recommend one of our referral partners who specializes in your type of business. You are never left holding a set of finished books with no idea who should file them.
If you have received IRS notices or have several years of unfiled returns, mention it during the assessment. It affects which periods OneBooks completes first.
Is This Confidential?
Yes. OneBooks engagements are covered by signed confidentiality terms. Documents are exchanged through an encrypted client portal and held in SOC-compliant storage, your records are used solely to complete your bookkeeping, and nothing is shared with any outside party without your instruction.
Business owners who are years behind often delay asking for help because they are embarrassed, or because they are worried that admitting the problem creates a new one. It does not. OneBooks works with businesses in exactly this position routinely, and the conversation starts wherever you actually are.
Encrypted document portal
Statements and financial records are uploaded and exchanged through an encrypted client portal rather than email attachments.
Signed confidentiality terms
Every OneBooks engagement is covered by signed confidentiality terms before any records change hands.
SOC-compliant storage
Client documents are held in SOC-compliant storage for the duration of the engagement.
Facing a Tax, Loan, or Other Deadline?
If you need current financial statements for a tax return, IRS matter, loan application, business sale, or partner dispute, tell OneBooks during the initial assessment. OneBooks will determine what has to be completed first and whether the project can be prioritized to meet your date.
A Multi-Year Catch-Up Is Fixable
A business two or three years behind can look unsalvageable because the problems compound: unreconciled accounts, duplicate transactions, incorrect opening balances, payroll entries, and missing statements all stack on top of each other. The solution is not to start over. OneBooks works through the history month by month until the records reconcile and the financial statements make sense again.
Starting over discards the one thing that makes the books defensible — their connection to what actually happened in the bank account. OneBooks rebuilds against the source records instead, so the finished statements can be supported if a lender, buyer, or tax authority asks.
What You Receive When the Project Is Complete
At completion, OneBooks delivers books brought current through the agreed date, fully reconciled bank and credit-card accounts, corrected classifications, updated financial statements, and written documentation of anything that could not be resolved — ready to hand to your CPA.
- Books brought current through the agreed date
- Reconciled bank and credit-card accounts
- Corrected transaction classifications
- Reviewed balance-sheet accounts
- Updated Profit & Loss Statement
- Updated Balance Sheet
- Supporting reports as needed
- Documentation of unresolved or unusual items
- Books ready for your CPA or tax preparer
What Happens After Catch-Up?
Once the backlog is cleared you have two options: maintain the books yourself from the clean starting point OneBooks created, or move to OneBooks Monthly Bookkeeping and have the books kept current and reconciled every month going forward.
Maintain the books yourself
Use the reconciled starting point OneBooks created, with your accounts and chart of accounts already corrected.
Move to OneBooks Monthly Bookkeeping
OneBooks keeps the books current and reconciled each month, so the backlog does not rebuild. Most catch-up clients transition for exactly this reason.
Real Catch-Up Bookkeeping Projects
Traveling Pediatric Medical Practice
- How far behind
- Approximately 1.5 years behind
- Complexity
- Two-partner pediatric intensive-care practice supporting hospitals around the U.S.; approximately 3,000 transactions; contractor payments by check, Zelle and Venmo; missing 1099 information; partner deposits not clearly identified; deposits not properly matched to invoices, overstating A/R and income.
- What OneBooks did
- Reconstructed and reviewed the historical bookkeeping, traced deposits using bank records, addressed transaction classification issues, and gathered information needed to support prior-year 1099 preparation and the CPA's tax-return work.
- Result
- Books were brought into a condition that could support the CPA's tax work and required contractor reporting.
E-Commerce Business
- How far behind
- Six-month catch-up and cleanup
- Complexity
- 15 bank and credit-card accounts plus Shopify, PayPal, Avalara, Affirm, Stax and ADP; A/P and A/R issues and personal/business transaction commingling.
- What OneBooks did
- Reviewed and reconciled the affected accounts and platforms, corrected bookkeeping issues, and organized the financial records.
- Result
- Catch-up and cleanup work created a more reliable set of books for ongoing accounting and reporting.
Real Estate / Property Portfolio
- How far behind
- Two-year catch-up
- Complexity
- 15 properties, 27 bank and credit-card accounts, and more than 15,000 transactions.
- What OneBooks did
- Reconstructed and organized two years of bookkeeping across a large multi-property, multi-account environment.
- Result
- Multi-year historical bookkeeping was brought forward across the property portfolio.
Trusted by Business Owners Nationwide
Founded in 2016, OneBooks combines more than 40 years of business, finance, and operations experience with a U.S.-based QuickBooks Online bookkeeping team serving small businesses nationwide, including New Jersey catch-up bookkeeping clients.
★★★★★"They helped me get my 2025 books caught up quickly and at a very reasonable price, which was a huge relief after falling behind. On top of that, they guided me through my 1099 issues and handled issuing the 1099s so I could meet the filing deadline without stress. They were responsive, efficient, and clearly know what they're doing with QuickBooks and compliance." — Steven Polack · Google Review · Google Local Guide, 89 reviews · January 2026
Frequently Asked Questions
How far behind can you help with?
Can you work with incomplete records?
How much does catch-up bookkeeping cost?
How long does it take?
Do you work in QuickBooks Online?
Are your bookkeepers based in the United States?
Will my CPA be able to use the finished books?
I have unfiled tax returns. Can you still help?
Is this confidential?
Can you continue doing my bookkeeping afterward?
Ready to Get Your Books Caught Up?
Tell us how far behind you are. OneBooks will review the situation, explain what needs to be fixed, and give you a fixed quote before any work begins. No judgment, and no obligation.
Let’s Chat
Book a Discovery Call with Bob to see if OneBooks is right for your business.