U.S. Federal & State Tax Advisory
- Form 1120 preparation
- Federal and state tax computations
- Tax provisioning
- Credit and incentive optimization
USA 5.4
Tax Advisory & Compliance Services
Strategic, compliant, and commercially focused tax advisory for U.S., UK, and global businesses combining Big Four methodology with cross-border insight and outcome-driven execution.
End-to-end U.S. federal, state, and international tax advisoryIRS-aligned compliance and global dispute resolutionCross-border structuring, mobility, and multi-jurisdiction planningBig Four-grade technical capability with boutique responsiveness
United States service page
Service overview
Aureliant's Tax Advisory practice delivers a comprehensive suite of services covering U.S. federal and state tax, international tax, sales and indirect tax, R&D incentives, IRS controversy, transfer pricing and private client advisory.
Value Props
Why this matters
Strategic Tax Insight
Forward-looking tax planning aligned to commercial, financial and operational objectives.
Technical Excellence
AICPA-aligned, IRS-compliant and grounded in Big Four methodology, U.S. GAAP, IFRS and OECD standards.
Cross-Border Capability
International tax structuring, treaty optimization, global mobility and multi-jurisdiction compliance.
Compliance Confidence
Audit-ready documentation, governance frameworks and risk mitigation across tax domains.
Service Modules
Service modules and subpages
Structured from the client-provided country wireframes and CMS-ready content.
International Tax & Cross-Border Structuring
- Holding company structures
- Withholding tax planning
- OECD BEPS alignment
- Multi-jurisdiction tax mapping
Sales Tax & Indirect Tax Advisory
- Nexus analysis
- Sales tax registration and filings
- Indirect tax compliance
- Supply chain tax mapping
U.S. R&D Tax Credit (Section 41)
- Technical narratives
- Cost analysis
- Section 41 credit modeling
- IRS audit defense
IRS & State Tax Controversy
- IRS correspondence
- Risk assessments
- Negotiation and resolution support
- Voluntary disclosures
Private Client & HNWI Tax Advisory
- Individual tax returns
- Residency and sourcing rules
- Cross-border mobility tax
- Wealth and estate planning alignment
Transfer Pricing Advisory
- Master file
- Local file
- Benchmarking
- Intercompany policy design
State & Local Transaction Tax Advisory
- Multistate tax
- Nexus and exposure mapping
- Transaction-based tax planning
Digital Tax Technology Advisory
- Workflow automation
- Cloud tax platforms
- Data governance and analytics
Deep Dive
Methodology, compliance and use cases
Methodology
- Diagnostic
- Technical analysis
- Structuring & planning
- Implementation
- Monitoring & compliance
Compliance Alignment
- IRS
- Treasury Regulations
- AICPA
- OECD BEPS
- IFRS
- Global tax treaties
Technology Enablement
- Digital tax workflow automation
- Cloud-based documentation
- AI-assisted tax analytics
- Secure client portals
Use Cases
- U.S. businesses expanding internationally
- Multinational groups restructuring
- Investors acquiring U.S. or global assets
- High-growth technology companies
- Private clients with cross-border exposure
Related Services
Internal links
- Corporate Finance
- Global Advisory
- Governance & Compliance
FAQs
Tax Advisory & Compliance Services FAQs
What industries do you support?
We support all sectors, with deep experience in technology, financial services, professional services, real estate and international trading businesses.
Do you handle IRS audits and notices?
Yes. We manage the full process, from correspondence to negotiation and resolution support.
Can you support multi-jurisdiction tax planning?
Yes. We advise on treaty optimization, permanent establishment risk and global structuring.
Do you provide tax governance frameworks?
Yes, including tax strategy, risk registers and compliance frameworks.
Conversion
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Speak with Aureliant about United States tax advisory & compliance services.