Vertex research flags shift to real-time indirect tax compliance amid rising audit complexity

Vertex research flags a structural shift toward transaction-level, real-time indirect tax compliance, driven by fast-changing, market-specific invoice rules.

• Audit exposure rising: 58% of enterprises report highly complex indirect tax audits; 45% cite regulatory change as a top compliance challenge.
• Manual workload remains heavy: 80% reach audit readiness only through significant manual effort; 46% of audit issues stem from multiple causes.
• Integration gaps add cost: 56% cite integrating tax with core systems as the top challenge; only 12% report full end-to-end integration.
• Revenue impact: 1 in 3 US enterprises estimate $1 million-plus annual leakage from conservative tax treatment, missed exemptions, or unclaimed indirect tax.