Tax Litigation and Controversy
Defense in administrative and judicial proceedings.
Jurisdiction: Colombia

We represent taxpayers and companies when a disagreement with a tax authority requires a technical, timely and well-supported response.
We handle information requests, notices, official assessments, penalties, collection proceedings and other matters before DIAN and local authorities. We assess the facts, evidence, deadlines and accounting impact to define the strategy.
We prepare responses, appeals and applications, and handle administrative discussions and court proceedings when appropriate. The defense is built from the record and available documentation, without promising a particular outcome.
We also support internal audits and exposure reviews to strengthen evidence and reduce uncertainty before a dispute arises.
Tax Law
Administrative defense
Responses to information requests, statements of charges, and appeals before the DIAN.
Contentious-administrative proceedings
Representation in lawsuits for annulment and restoration of rights.
Coactive collection procedures
Defense against collection proceedings and attachments by tax authorities.
Refunds and offsets
Processing and defense of refund requests for tax credit balances.
Payment agreements and settlements
Negotiation of agreements and application of alternative mechanisms.
What working with AZC looks like
We understand your need, define the team, agree on scope and proposal, and get to work.
- 01
We understand your need
- 02
We define the right team
- 03
We set scope and proposal
- 04
We get to work
Ways to work with us
- Project / defined scope
- Ongoing support
- Specialized advice
- Representation / litigation
