IRS Letter 6173 is a compliance check letter — not an audit notice, but a precursor to one. It asks taxpayers to certify that their virtual currency transactions are correctly reported, or to amend if not. Responding incorrectly, or not responding at all, escalates the matter. This post explains what the letter requires, how to evaluate your exposure before responding, what documentation to prepare, and how to draft a response that closes the matter rather than inviting further inquiry.
In this post
- 1. What Letter 6173 is and what it is not (compliance check vs. formal examination)
- 2. The three response options the IRS offers and the risk profile of each
- 3. How to evaluate your prior-year return before you respond
- 4. Building your response package: documentation standards and format
- 5. What happens after you respond: timelines, follow-up letters, and escalation triggers
1. What Letter 6173 is and what it is not (compliance check vs. formal examination)
IRS Letter 6173 is a compliance check letter — not an audit notice, but a precursor to one. It asks taxpayers to certify that their virtual currency transactions are correctly reported, or to amend if not. Responding incorrectly, or not responding at all, escalates the matter. This post explains what the letter requires, how to evaluate your exposure before responding, what documentation to prepare, and how to draft a response that closes the matter rather than inviting further inquiry.
This section walks through the practical details for crypto holders, traders, and operators. In an engagement, this is the work product Chainblock Financial produces: documented methodology, citation to authority where it exists, and explicit identification of open questions where it doesn’t.
Key considerations
- The specific rule, regulation, or guidance that applies — with citation.
- Where the guidance is silent and a defensible position has to be taken.
- What documentation you need to preserve to support the position at audit.
- How to record the decision in your subledger so future preparers can follow it.
For most clients, this category of decision appears multiple times in a single year. Getting the methodology right once — and applying it consistently — is what distinguishes a defensible return from a guess. This is the work we do every quarter on a Subledger engagement; it is the work we re-do under engagement when a prior preparer left it undocumented.
2. The three response options the IRS offers and the risk profile of each
IRS Letter 6173 is a compliance check letter — not an audit notice, but a precursor to one. It asks taxpayers to certify that their virtual currency transactions are correctly reported, or to amend if not. Responding incorrectly, or not responding at all, escalates the matter. This post explains what the letter requires, how to evaluate your exposure before responding, what documentation to prepare, and how to draft a response that closes the matter rather than inviting further inquiry.
This section walks through the practical details for crypto holders, traders, and operators. In an engagement, this is the work product Chainblock Financial produces: documented methodology, citation to authority where it exists, and explicit identification of open questions where it doesn’t.
Key considerations
- The specific rule, regulation, or guidance that applies — with citation.
- Where the guidance is silent and a defensible position has to be taken.
- What documentation you need to preserve to support the position at audit.
- How to record the decision in your subledger so future preparers can follow it.
For most clients, this category of decision appears multiple times in a single year. Getting the methodology right once — and applying it consistently — is what distinguishes a defensible return from a guess. This is the work we do every quarter on a Subledger engagement; it is the work we re-do under engagement when a prior preparer left it undocumented.
3. How to evaluate your prior-year return before you respond
IRS Letter 6173 is a compliance check letter — not an audit notice, but a precursor to one. It asks taxpayers to certify that their virtual currency transactions are correctly reported, or to amend if not. Responding incorrectly, or not responding at all, escalates the matter. This post explains what the letter requires, how to evaluate your exposure before responding, what documentation to prepare, and how to draft a response that closes the matter rather than inviting further inquiry.
This section walks through the practical details for crypto holders, traders, and operators. In an engagement, this is the work product Chainblock Financial produces: documented methodology, citation to authority where it exists, and explicit identification of open questions where it doesn’t.
Key considerations
- The specific rule, regulation, or guidance that applies — with citation.
- Where the guidance is silent and a defensible position has to be taken.
- What documentation you need to preserve to support the position at audit.
- How to record the decision in your subledger so future preparers can follow it.
For most clients, this category of decision appears multiple times in a single year. Getting the methodology right once — and applying it consistently — is what distinguishes a defensible return from a guess. This is the work we do every quarter on a Subledger engagement; it is the work we re-do under engagement when a prior preparer left it undocumented.
4. Building your response package: documentation standards and format
IRS Letter 6173 is a compliance check letter — not an audit notice, but a precursor to one. It asks taxpayers to certify that their virtual currency transactions are correctly reported, or to amend if not. Responding incorrectly, or not responding at all, escalates the matter. This post explains what the letter requires, how to evaluate your exposure before responding, what documentation to prepare, and how to draft a response that closes the matter rather than inviting further inquiry.
This section walks through the practical details for crypto holders, traders, and operators. In an engagement, this is the work product Chainblock Financial produces: documented methodology, citation to authority where it exists, and explicit identification of open questions where it doesn’t.
Key considerations
- The specific rule, regulation, or guidance that applies — with citation.
- Where the guidance is silent and a defensible position has to be taken.
- What documentation you need to preserve to support the position at audit.
- How to record the decision in your subledger so future preparers can follow it.
For most clients, this category of decision appears multiple times in a single year. Getting the methodology right once — and applying it consistently — is what distinguishes a defensible return from a guess. This is the work we do every quarter on a Subledger engagement; it is the work we re-do under engagement when a prior preparer left it undocumented.
5. What happens after you respond: timelines, follow-up letters, and escalation triggers
IRS Letter 6173 is a compliance check letter — not an audit notice, but a precursor to one. It asks taxpayers to certify that their virtual currency transactions are correctly reported, or to amend if not. Responding incorrectly, or not responding at all, escalates the matter. This post explains what the letter requires, how to evaluate your exposure before responding, what documentation to prepare, and how to draft a response that closes the matter rather than inviting further inquiry.
This section walks through the practical details for crypto holders, traders, and operators. In an engagement, this is the work product Chainblock Financial produces: documented methodology, citation to authority where it exists, and explicit identification of open questions where it doesn’t.
Key considerations
- The specific rule, regulation, or guidance that applies — with citation.
- Where the guidance is silent and a defensible position has to be taken.
- What documentation you need to preserve to support the position at audit.
- How to record the decision in your subledger so future preparers can follow it.
For most clients, this category of decision appears multiple times in a single year. Getting the methodology right once — and applying it consistently — is what distinguishes a defensible return from a guess. This is the work we do every quarter on a Subledger engagement; it is the work we re-do under engagement when a prior preparer left it undocumented.
This is the work we do.
Every Chainblock engagement applies this methodology to your actual transactions, your actual entity structure, and your actual exposure. If you’d rather have it done than read about how it’s done, schedule a 30-minute intake call.
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