SOX and Internal Controls Over Excel Spreadsheets
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Marc Engel, CPA, CISA, CFE
Many companies not previously subject to SOX are required to
comply in their current fiscal year. This includes non-accelerated filers and
smaller reporting companies. Existing companies that are SOX compliant should now
be compliant for their primary computer systems and applications. However, many
of these companies may need to tighten controls over applications such as Excel.
These are often used in accounting and
finance departments to generate calculations or support for journal entries or
business decisions.
Risks involving the use of Excel need to be considered. For example, a controller might use an uncontrolled
Excel spreadsheet to control fixed assets.
Formulas are not locked, because each new purchase adds a line to the
list of fixed assets. Approvals consist of a signature on the hard copy. Or Excel may be used to prepare financial
statements and for variance analyses; but lack of control over input cells,
output cells, formula results, and different versions of the spreadsheet may
cause errors which may then appear in the financial statements and the MD&A.
Consequently, lack of proper controls over such applications could result in a
finding of a significant deficiency or even a material weakness. If not
corrected prior to year end, this might have to be reported as an exception in
the annual report.
The good news is - COSO compliant, effective controls are
easily implemented. Five basic areas
are: Risk Assessment, Limited Access, Design
and Documentation, Change Controls, and Monitoring. Please click here to continue
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