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Due Diligence Documentation Guide

How to document due diligence for each engagement: earned income credit, child tax credit, head of household, education credits, and general preparer responsibilities.

5 stepscompliance
1

Identify due-diligence requirements

Determine which due-diligence requirements apply to each return: EIC (Form 8867), child tax credit, additional child tax credit, head of household, American Opportunity Credit, and Lifetime Learning Credit.

2

Ask the required questions

For each applicable credit or filing status, ask the questions required by the regulations. Record the taxpayer's answers and the documents provided as support.

3

Document the inquiry and results

Complete Form 8867 or equivalent internal documentation. Record the questions asked, the answers received, the documents reviewed, and the preparer's conclusion.

4

Retain supporting records

Keep all due-diligence worksheets, client responses, and supporting documents for the required retention period (minimum 3 years from the return due date).

5

Review before filing

Before the return is filed, confirm that all applicable due-diligence requirements have been met, all forms are complete, and all supporting documentation is in the file.

Who this guide is for

  • Tax preparers who claim EIC, CTC, HOH, or education credits
  • Firms that need consistent due-diligence records across staff
  • Solo practitioners who want defensible documentation

This guide shows you what to do. The product makes it repeatable.

SOLO includes the templates, checklists, logs, and SOPs to execute this workflow consistently across every engagement.

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