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Signs your books need a cleanup, and what one costs

Daniel Luna
Daniel Luna
Founder, DPC Bookkeeper · November 2026 · 3 min read

Your books need a cleanup when you can't trust the numbers enough to make a decision or file a return. The cost depends mostly on how many months are behind and how many transactions each month holds, so the only honest quote comes after someone looks.

The signs

One of these is a fix. Three or more usually means a cleanup.

What drives the cost

I can't give you a price without looking, and you should be wary of anyone who does. These are what move it:

In a made-up example, two practices are each six months behind. One has a single checking account and card with clean statements. The other has four accounts, missing statements for two months and personal charges mixed in. The second cleanup can take several times longer.

Fix it all, or start fresh?

You may not need every past year fixed. Often it makes sense to clean up only what your CPA still has to file and start fresh from there. This post walks through that choice.

How to keep the cost down

What I'd do this week

Common questions

How long does a cleanup take?
It depends on the same things as the cost: months behind, volume, number of accounts and how quickly missing documents turn up. Ask for a timeline along with the quote.

Can I keep my current bookkeeper during a cleanup?
You can, but two people working the same books at once causes mistakes. Agree on who owns which months.

Will a cleanup change my past tax returns?
It can. If the cleanup finds errors in a year that was already filed, your CPA decides whether an amended return is needed.

Not sure how far behind your books are?

We look at your accounts, statements and transaction volume before we quote a cleanup, so the price fits the real work. If that's what you need, apply to work with us.