Updated September 6, 2026. This article explains how catch-up bookkeeping is priced and how long it takes. If you already know you need it, the catch-up bookkeeping service page covers what we do and how to start.
The short answer: catch-up bookkeeping is priced as a one-time project, and the price is driven by three things — how many months are behind, how many accounts are involved, and what shape the existing records are in. Online providers that publish a number tend to price it per month of backlog (Xendoo, for example, lists catch-up “starting at $295 per month” of books; Bookkeeper360 lists “prior bookkeeping” as a $1,000 project). At AB The Tax Expert we do not publish a flat rate because a year of a two-account consultancy and a year of a nine-account contractor with payroll are not the same job; we scope it and give you a single price before any work begins. Most engagements take a few weeks once your statements are in. Here is what moves both numbers, what we will ask you for, and what happens to your tax returns once the books are current.
What catch-up bookkeeping includes, and what “cleanup” means
Catch-up is building books that were never done: every transaction for the missing months recorded, categorized and reconciled to the bank and card statements, then turned into a profit and loss and balance sheet for each period. Cleanup is fixing books that exist but cannot be trusted: duplicated transactions, uncategorized entries, balances that do not match the statement, a QuickBooks file with three years of “Ask My Accountant.” Many engagements are both. The end state is the same either way: books that tie to the bank every month and that a tax return can be prepared from.
How catch-up bookkeeping is priced
Almost everyone prices it one of two ways. Per month behind, multiplied by a complexity factor: simple, moderate or heavy, based on accounts and volume. Or as a project quote after looking at the actual records. Hourly billing exists but is the worst fit for a backlog, because nobody can tell you the total until it is over.
We quote the project. The reason is practical: the first hour of looking at your bank statements tells us more about the work than any formula, and you should know the total before you commit. What you will get from us is a written scope (which months, which accounts, what is being cleaned versus built), a single price, and a list of what we need from you.
The six things that move the price
1. Months behind. The main multiplier. Twelve months is roughly twelve times one month, adjusted for the fact that recurring transactions get faster once the categorization rules are set.
2. Number of accounts. Each bank account, credit card, loan and payment processor is a separate reconciliation for every month in the period.
3. Transaction volume. Forty transactions a month and nine hundred are different jobs at the same number of accounts.
4. Condition of existing books. Starting clean is often faster than untangling a half-kept file. If you have a QuickBooks file, we will tell you whether it is worth cleaning or better rebuilt.
5. Missing records. Gaps in statements, a processor you no longer have access to, or cash-heavy months that need reconstruction add time.
6. Entity type and what the books are for. A sole proprietor filing Schedule C needs a clean profit and loss. A partnership or S corporation also needs a balance sheet that supports the return, owner basis and any K-1s, which means more care with equity, loans and distributions.
How long catch-up bookkeeping takes
Two clocks run at once. The first is document gathering, which is mostly in your hands: most engagements that stall, stall here. The second is the bookkeeping itself. Once everything is in, a typical one-year catch-up for a small business takes a few weeks; multi-year or multi-entity work takes longer, and we tell you the estimate at scoping and update it as we go. We do not guarantee a turnaround, because the honest answer depends on how quickly statements arrive and what we find in them.
On statements: most major banks make several years available online. Chase says up to seven years depending on account type; Bank of America lets you download up to 18 months online and keeps copies for up to seven years on request; Wells Fargo provides up to seven years for deposit accounts and two years for credit cards. If a month is missing, we will tell you exactly which one and how to get it.
What we will ask you for
- Bank and credit card statements for every business account, for every month in the period (PDF is fine).
- Loan statements and payment processor reports — Stripe, Square, PayPal, merchant services — plus payroll summaries if you have employees.
- Sales and expense records: invoices, receipts for larger purchases, and any spreadsheets or software files you already keep.
- Your last filed tax return and access to your existing QuickBooks, Xero or spreadsheet file, if there is one.
- Entity and ownership details: how the business is taxed and who the owners are.
You do not need every receipt. Statements are the backbone; receipts matter for larger or unusual items and for anything you would need to support in an audit.
Catch-up first, then the return: what unfiled years mean
Most catch-up work exists because a tax return could not be filed. A few facts from the IRS that shape how we sequence it:
- The IRS says to file past-due returns to limit interest and late-payment penalties, and that if you do not file, it may file a substitute return for you that does not give credit for deductions and exemptions, followed by a notice of deficiency with a 90-day window.
- Refunds must be claimed within three years of the return due date, so an unfiled year with a refund in it is on a clock.
- IRS policy is that enforcement of filing requirements is normally pursued for a six-year period, which is why “how many years back?” usually has a six-year answer, though every situation is its own.
- Penalty relief has changed in 2026: the IRS is replacing First Time Abate with an Automatic Exemption from Penalty for eligible original returns beginning with tax year 2025, with no request needed. Older catch-up years still generally require a request for First Time Abate or reasonable-cause relief, and we handle that as part of the filing.
In California, an LLC owes the $800 annual LLC tax every year it exists, filed or not, and the FTB charges its own late-filing penalties, so unfiled state years accumulate too. Once the books are current we prepare the business tax returns for each year from them, and if an IRS or FTB letter is what started this, we handle the bookkeeping and the response to the notice together rather than as two separate problems.
What happens after the books are current
Three options. Move into a monthly bookkeeping plan (from $399 a month) so the backlog never comes back; take the clean, reconciled file in-house; or do the returns now and decide later. There is no obligation to continue monthly, and the catch-up price does not change based on your answer. You can see how catch-up sits alongside the monthly plans on the pricing page.
Common questions
Can you do five years of catch-up bookkeeping?
Yes, as far back as statements exist. Longer periods are scoped the same way, with more months in the count, and we will usually suggest doing the most recent year first so the current return can be filed while earlier years are finished.
Do I need every receipt?
No. Bank and card statements drive the work. Receipts matter for larger purchases, cash transactions and anything you would need to substantiate.
Will you fix my QuickBooks file or start over?
We look first. If the file is salvageable, cleanup is usually faster and keeps your history; if it is not, a clean rebuild from statements is faster and more reliable. We tell you which before quoting.
Can I do part of it myself to save money?
Gathering statements and answering categorization questions promptly are the two things that reduce the price and the timeline most. Doing the bookkeeping itself halfway usually costs more to review than to do once.
Does catch-up bookkeeping include filing the returns?
No. Returns are priced separately by return type — Schedule C from $750; partnership, S corporation and C corporation returns from $1,200 — and quoted alongside the catch-up so you see the whole number up front.
Ready to get a scope and a price? Start on the catch-up bookkeeping page or answer a few questions and we will take it from there.
Sources
- IRS, Filing past due tax returns — irs.gov
- IRS, Internal Revenue Manual 5.1.11.7.1, enforcement determination (six-year period) — irs.gov
- IRS, penalty relief due to First Time Abate; IR-2026-83, automatic exemption from penalty — irs.gov, irs.gov
- California FTB, limited liability company annual tax; penalties and interest — ftb.ca.gov, ftb.ca.gov
- Statement availability: Chase, Bank of America, Wells Fargo
- Provider pricing checked September 6, 2026: Xendoo, Bookkeeper360
Questions about how this applies to your situation? We can talk it through and point you to the right next step.