My return keeps getting flagged or I owe more than I expected
A return prepared without a full review of your reasonable compensation, distributions, and any payroll for a spouse or kids often produces a balance due in April that catches an owner off guard. This is common when the shop had a strong year, when a spouse went on payroll mid-year, or when a home sale or a new truck changed the numbers and nobody flagged it until filing season.
Software-only preparation also misses judgment calls specific to a trades business, like whether the personal truck's business-use percentage actually supports the mileage claimed, or whether a home office used for dispatch and invoicing meets the exclusive-use test, because the software only asks what it's programmed to ask.
An inaccurate return can trigger an IRS automated notice from its document-matching program, add an underpayment penalty if reasonable compensation was set too low, and in repeat cases increase the likelihood of a closer look at next year's filing.