Do San (Justin) Myung

Expert Accountant & Former Consulting CFO | DualEntry

Justin (Do San Myung) is Expert Accountant at DualEntry with 20+ years of hands-on experience managing general ledgers, financial close processes, and ERP implementations for mid-market and enterprise companies. As a former Consulting CFO and Controller, he has personally overseen month-end closes, SOX compliance programs, and multi-entity consolidations across technology, manufacturing, and services industries. Justin specializes in transforming manual accounting workflows into automated, AI-driven processes.

Latest from

Do San (Justin) Myung

Deferred Revenue Journal Entry

Deferred Revenue Journal Entry: How to Record It (With Examples)

Learn how to record a deferred revenue journal entry with step-by-step examples – from initial receipt to monthly recognition. Includes SaaS scenarios, common mistakes, and when to automate.

General ledger adjustments

General Ledger Adjustments: Definition, Process & Examples

General ledger adjustments keep your financial statements accurate at close. Learn what they are, the most common errors, and a simple four-step process to handle them.

General Ledger vs Chart of Accounts

General Ledger vs Chart of Accounts: Key Differences, Examples, and Best Practices

Confused about the general ledger vs chart of accounts? Learn how they differ, how they work together, and see real examples to help you set up cleaner books.

General Ledger Account Codes_

General Ledger Account Codes: Structure, Examples, and Best Practices for Accurate Accounting

GL account codes classify every transaction in your chart of accounts. Learn how they're structured, how they affect reporting, and how to set them up correctly.

The Payroll Ledger: How It Connects Payroll to Your General Ledger

A payroll ledger tracks employee pay, deductions, and liabilities at the transaction level. Learn how it works, how it flows into the GL, and how to keep it accurate.

What Is a General Ledger Report

What Is a General Ledger Report? A Practical Guide

Learn what a general ledger report is, how to read one, and how it connects to your trial balance and financial statements.

Intercompany reconciliation

Intercompany reconciliation: finally smoother, thanks to AI

A practical guide to intercompany reconciliation: common challenges, best practices for growing groups, and how AI-powered tools are streamlining the close.

Account Reconciliation Best Practices

Account Reconciliation Best Practices

A practical guide to account reconciliation best practices -- covering workflows, common pitfalls, and how modern finance teams keep their books clean at scale.

Best Sage Intacct Alternatives

The 11 Best Sage Intacct Alternatives in 2026

Compare 11 Sage Intacct alternatives for 2026 with verified pricing, migration timelines, and a quick-match guide to find the right fit for your company.

Handling Balance Sheet Reconciliation

Handling Balance Sheet Reconciliation in the Automation Age

Balance sheet reconciliation explained: why it matters, common challenges, and how AI-powered automation improves accuracy, controls, and financial close efficiency.

What Is Account Reconciliation

What Is Account Reconciliation? Definition, Process & Examples

Learn what account reconciliation is, how it works, and why it matters. Step-by-step process, examples, and best practices for accurate financial reporting.

General Ledger vs. General Journal: A Comprehensive Comparison

General Ledger vs. General Journal: A Comprehensive Comparison

General ledger vs. general journal explained: key differences, examples, and how modern ERP automation improves accuracy, posting, and reporting.

General Ledger vs Subledger: Key Differences & Reconciliation Guide

General Ledger vs Subledger: Key Differences & Reconciliation Guide

Not sure what belongs in a general ledger vs subledger? Learn the key differences, posting workflows, reconciliation steps, and how both impact your month-end close.

General Ledger vs Trial Balance: Key Differences

General Ledger vs Trial Balance: Key Differences

General ledger vs trial balance explained. Learn the key differences, workflow steps, examples, and how to avoid common accounting mistakes.

How to Use AI in Accounting (2026 Guide)

How to Use AI in Accounting (2026 Guide)

Learn how to use AI in accounting with real examples across AP, AR, reporting, and reconciliation—plus tips for choosing the right tools.

Will AI Replace Accountants? What’s Really Changing in 2026

Will AI Replace Accountants? What’s Really Changing in 2026

Will AI replace accountants? Here’s what’s actually happening in 2026: what AI can automate, where it fails, and why accountability still sits with humans.

General ledger reconciliation: step-by-step techniques for accuracy and compliance

General ledger reconciliation: step-by-step techniques for accuracy and compliance

General ledger reconciliation: step-by-step techniques to compare balances, identify errors, resolve discrepancies. Learn bank and AP reconciliation methods.

Real-Life General Ledger Examples (With Entries)

Real-Life General Ledger Examples (With Entries)

Discover real general ledger examples with actual journal entries. Master posting methods from service and retail business scenarios.

What is a General Ledger? Everything You Need to Know (With Examples)

What is a General Ledger? Everything You Need to Know (With Examples)

What is a general ledger? Learn how it works, key components, and see simple examples to understand your business finances clearly.