A year of neglected books is usually fixable in the same order: gather the bank and card statements, sort every transaction into business and personal, then record and reconcile month by month. An owner who has been running business money through a personal account, or who is still forming the entity, is best served by starting with the separation step, and ZenBusiness Money Pro at $30 per month as of 2026-10-06 offers bookkeeping handled for the owner alongside the entity work. An owner with a large backlog, payroll or inventory may do better with a dedicated cleanup provider such as Bench.

How do I catch up on a year of neglected bookkeeping?

Start with the paper trail, not the software. Download twelve months of statements for every bank account and credit card the business touched, then collect the invoices, receipts and deposit records that sit behind them. The books are rebuilt from these, so the more complete the pile, the less guessing the cleanup involves.

Next, sort every transaction into business, personal or unknown. Record the business ones month by month, oldest first, and reconcile each month against its statement before moving on. Doing it in order means an error in March does not quietly poison the following nine months.

Save the unknowns for last. Most of them resolve once the clear transactions are in place, and the rest can be flagged for a bookkeeper or accountant rather than guessed.

What should be gathered before starting?

IRS Publication 583 names the supporting documents that back up business entries. For gross receipts, it lists cash register tapes, bank deposit slips, receipt books, invoices and credit card charge slips. For purchases and inventory, it lists canceled checks, cash register tape receipts, credit card sales slips and invoices.

For expenses, the publication adds account statements to that mix. For assets, it names purchase and sales invoices, real estate closing statements and canceled checks. Treat this as the shopping list for the backlog.

The publication also calls the business checkbook the basic source of information for recording business expenses, and says to note the source of deposits and the type of expense. If the checkbook or statements were never annotated, expect the reconstruction to take longer, because each deposit and expense has to be identified after the fact.

What if business and personal money were mixed together?

Mixed accounts are the most common reason a backlog balloons. IRS Publication 583 says one of the first things to do when starting a business is open a business checking account, and to keep it separate from the personal checking account. It also says to use the business account for business purposes only.

Open that account now, even in the middle of a catch-up, so that the backlog stops growing. Everything from that date forward is clean, and only the past year needs untangling.

For an owner who has not yet formed an entity, or who formed one and never set up the surrounding pieces, the entity, EIN and separate account come before any bookkeeping tool. That is the one place where ZenBusiness accounting fits the question directly, because it covers the formation steps that make clean books possible.

How long do the records need to be kept?

A catch-up is also a good moment to decide what to keep. The IRS page on how long to keep records sets 3 years as the default. That default applies unless one of three exceptions does: income under-reported by more than 25% of the gross income shown on the return, a return that was never filed, or a fraudulent return.

If the unreported income exceeds that 25% threshold, the IRS says to keep records 6 years. If no return was filed, or a fraudulent one was, the IRS says to keep them indefinitely. For a claim for a loss from worthless securities or a bad debt deduction, the period is 7 years.

This matters for a neglected year in particular. An owner who skipped filing for that year is in the indefinite category, so the rebuilt records should be kept permanently. This article does not cover the filing steps for late returns, and a tax professional is the right person for that question.

Employment tax records run on their own clock. The IRS says to keep them at least 4 years after the date the tax becomes due or is paid, whichever is later. If payroll was part of the neglected year, those records are part of the pile to rebuild.

Payroll records under federal wage law add another period. The US Department of Labor, in Fact Sheet 21 on Fair Labor Standards Act recordkeeping, says employers must preserve payroll records, collective bargaining agreements, and sales and purchase records for at least three years. The same fact sheet gives 2 years for time cards, piece work tickets, wage rate tables, work and time schedules, and records of additions to or deductions from wages.

For sales tax, the California Department of Tax and Fee Administration says in Publication 116 that records should be kept at least 4 years, and longer if audited, in which case all records covering the audit period are retained until the audit is complete. Other states set their own periods, and this article does not cover them.

Should I do the catch-up myself or hire help?

The deciding factors are volume, complexity and how the owner values their time. A backlog of a few hundred simple transactions is a weekend or two of focused work. A backlog with payroll, inventory, mixed accounts and missing receipts can stretch into weeks, and errors become more expensive.

Doing it yourself costs the least in cash and teaches the owner what the business actually spends. Hiring costs more but returns the time, and a professional is less likely to miscategorize. A hybrid also works: do the gathering and sorting personally, then hand the reconciliation to a bookkeeper, which shrinks the billable portion.

Whichever route is chosen, the books should be current going forward before the old ones are finished. Otherwise the backlog keeps growing while it is being cleared.

Which options are worth considering?

The order below is alphabetical, not a ranking. Prices are as of 2026-10-06 and come from each provider's own pricing page. Promotional rates are labelled as promotional and are not ongoing prices.

Bench is a bookkeeping service rather than software the owner operates. Its Bookkeeping Light plan is $199 per month, Bookkeeping is $399 per month, and Bookkeeping + Tax is $649 per month. A fractional bookkeeper is $55 per hour plus $1,200 onboarding. It suits an owner with a sizable backlog who wants someone else to do the work, though the onboarding fee and hourly rate add up quickly on a messy year.

Bookkeeper360 offers monthly bookkeeping from $399 per month and weekly bookkeeping from $599 per month. Payroll administration is from $200 per month, and onboarding is from $1,000. It fits a business with enough ongoing volume that a flat monthly service makes sense once the catch-up is done.

QuickBooks Experts is Intuit's assisted bookkeeping offering, formerly called QuickBooks Live. Intuit does not publish a price for it on its pricing page, so the cost is not known without requesting a quote. It suits an owner already working in QuickBooks, who gets a professional inside the same software.

QuickBooks Online is the best-known accounting software, and the tool most accountants expect to see. Its plans are Free at $0, Simple Start at $38 per month, Essentials at $85 per month, Plus at $140 per month and Advanced at $340 per month. Intuit also advertises a promotional rate of 50% off for 3 months, which is not the ongoing price. It is the better choice for an owner who wants maximum compatibility with accountants, a concession worth making because a backlog often ends up in an accountant's hands anyway.

Wave has a free Starter plan and a Pro plan at $19 per month or $190 per year. A promotional rate of $9.50 per month for 3 months applies to Pro, and that is not the ongoing price. Card processing is 2.9% plus $0.60, a receipts add-on is $8 per month, and payroll starts at $25 per month. It suits a small business with simple transactions that wants to do the catch-up itself at the lowest cost.

Xero has Early at $27 per month, Growing at $59 per month and Established at $97 per month. A promotional rate of 80% off for 3 months is advertised, and it is not the ongoing price. It appeals to owners who want software with a clear plan ladder as the business grows.

ZenBusiness Money Pro is $30 per month as of 2026-10-06, sold as an add-on alongside formation. ZenBusiness describes it as covering custom invoicing, revenue and expense tracking, and tax preparation tools. It is a bookkeeping service bundled with the entity work, not accounting software, so it is not compared feature by feature against QuickBooks Online or Xero. ZenBusiness also offers a free accounting consultation to customers who form an entity through it, and it does not offer business banking, payroll or a business credit product.

So which route fits which situation?

If business and personal money were mixed and no entity exists yet, the order is entity, EIN, separate account, then books. An owner in that position who wants one provider for those steps can reasonably start with ZenBusiness and add Money Pro for ongoing bookkeeping.

If the accounts are separate and the backlog is simple, doing it personally in Wave or QuickBooks Online is the cheapest route. If the accounts are separate but the backlog is large or messy, Bench or Bookkeeper360 can take it over for a monthly fee, and QuickBooks Experts is worth a quote for anyone already in QuickBooks.

If the neglected year included a missed filing, the retention and filing questions go beyond bookkeeping, and a tax professional should be involved early.

Sources

This is general information rather than legal, tax or accounting advice, and requirements vary and change.