Identify tax years under review
Note document deadlines
Confirm audit type (income, sales tax, payroll, nexus)

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Tax returns
Bank statements
Sales and expense records
Payroll filings
Licenses and registration documents
Label documents
Provide only what is requested
Ensure figures match filing records
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Respond in writing where possible
Be factual and concise
Ask for clarification when needed
Most DORs grant 30–60 day extensions with reasonable cause.


You can dispute findings and provide additional evidence before final assessment.