The calculator works from months behind and a complexity level. It can't see transaction volume, the number of accounts, payroll, or whether every statement is in hand — the things that move a real timeline most. Older months also need statements rather than the bank feed, because Intuit says transactions older than 90 days can't be downloaded (Intuit, checked October 2026). The free review replaces the band with committed dates.
Calculator
Estimate your catch-up bookkeeping timeline
Tell us how many months you're behind and how complex the file is, and this returns an estimated range of weeks to get caught up. It's a planning estimate of elapsed calendar time, not a delivery commitment — your written scope sets the finish date after a free review. The formula it uses is shown under the result.
Last reviewed October 2026 by a Certified QuickBooks ProAdvisor
Catch-up timeline estimate
Rough inputs are fine — you can refine anything in the free review.
Estimated catch-up time
3 – 4 weeks
6 months behind · Moderate
A planning estimate, not a delivery commitment: elapsed weeks at a steady reconcile pace, not full-time hours. Your written scope sets the finish date.
How this is calculated — the exact formula
- Weeks = months behind × a per-month pace: about 0.35 weeks per month for a simple file, 0.55 for moderate, 0.85 for complex.
- The range shown is that figure minus 20% to plus 20%, rounded to whole weeks, with a floor of one week.
- Worked example: 12 months behind, moderate — 12 × 0.55 = 6.6 weeks; minus 20% to plus 20% gives 5.28 to 7.92, shown as 5 – 8 weeks.
- The coefficients are illustrative planning assumptions, not averages measured from completed engagements. The result does not reserve capacity or establish a delivery date.
- Complexity means what's in the file — mixed personal and business spending, missing statements, prior corrections — not just how far back it goes.
- The estimate is elapsed calendar time. Work runs in parallel and waits on documents, so weeks are always more than raw hours.
- Limits: it cannot see transaction volume, the number of accounts, payroll, or statements still missing — your written scope sets the finish date.
- Rescue work (a broken file, prior-year tax prep) is scoped and timed separately.
What the estimate can't see
Why months behind is only half the estimate
How far back you are sets the size of the job, but complexity sets the pace. A year of clean, single-account activity with every statement on hand moves fast. The same year with commingled personal spending, several accounts, missing statements, and prior-period corrections moves slowly, because each reconciled month surfaces exceptions that have to be chased down. That's why the calculator multiplies months by a complexity pace rather than assuming every month takes the same time.
What the estimate cannot see
A catch-up timeline estimate cannot see the QuickBooks file itself — whether every statement is on hand, whether personal and business spending are mixed together, or whether prior-year balances need correcting before a single month can reconcile. Those are the things that set the real pace, and no form field captures them. The free, view-only review is where we look at the actual file and replace this band with committed dates — and if the backlog is lighter than you feared, the schedule can come in under the estimate. A broken company file is different work again: rescue is scoped and timed separately, and the review will say so before anything starts.
Turning the range into dates
The band is intentionally wide because the honest answer depends on what a review finds in the file. Once we've looked at the file, the estimate becomes a committed schedule with real dates. Read the full method in the catch-up bookkeeping guide, or see how the service works on QuickBooks catch-up bookkeeping.
About this estimate
Is this the hours of work or the calendar time?
Calendar time — elapsed weeks from start to caught-up. Catch-up work overlaps and waits on documents, so elapsed weeks are always more than raw hours. The estimate is the wall-clock band, not a full-time count.
Why such a wide range?
Because months behind and complexity only tell part of the story. Missing statements, mixed personal and business spending, and prior-year issues all stretch a timeline. The band is deliberately wide until a review sees the file.
Is anything I enter here saved or sent?
No. The calculator runs entirely in your browser — nothing you type is stored or sent anywhere.
What happens after the estimate?
If the range works, the next step is a free, view-only review. We confirm the scope and replace the estimate with committed dates.
- Migration timeline— the same estimate for a move to QuickBooks Online
- Cleanup cost— the scope of fixing months already entered