IRS Notices, Correspondence & Issue Resolution
- Notice review and risk assessment
- Response drafting
- Documentation and substantiation
- Penalty abatement requests
USA 5.4
IRS & State Tax Controversy Advisory
Strategic representation and defense for IRS and state tax audits, notices, examinations and disputes.
IRS audits, notices and examinationsState tax audits, assessments and disputesIDR responses, documentation and defensePenalty mitigation, negotiation and resolution
United States service page
Service overview
Aureliant provides end-to-end support across federal and state audits, notices, examinations, IDRs, penalty mitigation and dispute resolution.
Service Modules
Service modules and subpages
Structured from the client-provided country wireframes and CMS-ready content.
IRS Examinations & Audit Defense
- Audit strategy and defense planning
- IDR responses
- Technical documentation
- Negotiation support
State Tax Audits & Multistate Controversy
- Nexus and apportionment defense
- Sales tax audit support
- State assessments review
- Settlement negotiation
R&D Tax Credit Audit Defense
- Technical narrative defense
- Engineering-led substantiation
- Cost methodology defense
- IDR response packages
Penalty Mitigation & Abatement
- Reasonable cause arguments
- First-time abatement requests
- Penalty negotiation
- Documentation support
Deep Dive
Methodology, compliance and use cases
Methodology
- Diagnostic
- Technical Analysis
- Planning
- Implementation
- Monitoring
Compliance Alignment
- IRS Code & Treasury Regulations
- State tax authority guidance
- AICPA standards
- OECD frameworks
- U.S. GAAP / IFRS
Technology Enablement
- Digital tax workflow automation
- Cloud-based documentation
- AI-assisted tax analytics
- Secure client portals
Use Cases
- U.S. businesses
- Multinational groups
- High-growth companies
- Investors and private clients
Related Services
Internal links
- International Tax
- Transfer Pricing
- Tax Governance & Risk
FAQs
IRS & State Tax Controversy Advisory FAQs
Do you represent clients in IRS audits?
Yes. We manage the full examination process, including IDRs, documentation and negotiation.
Can you support state tax audits?
Yes, including income, franchise, sales tax and indirect tax audits.
Do you support voluntary disclosures?
Yes, including strategy, filings and negotiation with tax authorities.
Conversion
Ready to discuss IRS & State Tax Controversy Advisory?
Speak with Aureliant about United States irs & state tax controversy advisory.