Nexus Studies & Analysis
Multi-state nexus analysis identifying where sales tax obligations exist.
- All 50 states + DC
- Economic thresholds
- Physical presence
- Marketplace rules
Expert Services Network
Services powered by
L3i technology.
Our partner firms leverage L3i's advanced platform to deliver comprehensive state and local tax services with the rigor of a modern practice.
The catalogue
Six disciplines, one platform underneath.
Every offering below is delivered by a vetted partner firm — supported end-to-end by L3i's tooling.
Product Taxability
Determine tax treatment across jurisdictions with 2,000+ product codes.
- 2,000+ tax codes
- Multi-state matrices
- Regular updates
- Industry specific
VDA Program Management
Navigate voluntary disclosure agreements with state-specific documentation.
- State packages
- Excel automation
- Penalty abatement
- Timeline tracking
Audit Defense
Line-level analysis and comprehensive documentation for audit response.
- Line detail analysis
- Risk identification
- Documentation trail
- Response templates
Compliance Management
Ongoing monitoring, return summaries, and deadline tracking.
- Return automation
- Deadline alerts
- Filing calendars
- Compliance scoring
Strategic Consulting
M&A due diligence, expansion planning, and tax optimization.
- M&A analysis
- Expansion planning
- Risk mitigation
- Tax optimization
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Need expert tax services?
Contact us for a referral to one of our trusted partner firms who can help with your state and local tax needs.