Catch-Up & Cleanup
How to Catch Up on Bookkeeping After a Missed Tax Deadline
By Matthew Slomowicz·May 6, 2026·4 min read
A missed tax deadline because the books weren't ready is more common than it feels, and it's very recoverable with the right sequence of steps.
First, get the books current
Filing an accurate return depends on accurate books. A focused catch-up project reconciles and categorizes the missing period so there's a real number to file from, rather than an estimate.
Then coordinate the filing with your CPA
Once books are current, your CPA can file an accurate return and address any penalties or extensions directly, working from real numbers instead of guesses.
The sooner catch-up work starts after a missed deadline, the smaller the eventual penalty and interest exposure tends to be.
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