Advanced Quick Answer
Should I outsource sales tax compliance or build an in-house function?
⚡ TL;DR
For most ecommerce brands under $50M, compliance software with AutoFile is more cost-effective than a dedicated internal hire — roughly $15,000–$50,000 per year vs. $80,000–$150,000 for a SALT specialist. The best model is a hybrid: software handles automation, your controller owns the relationship, and a SALT advisor on a $3,000–$8,000/year retainer covers complex questions.
The answer for most brands: use a compliance software platform, keep oversight internal, and put a SALT advisor on retainer for the hard questions.
Key takeaways
- Full outsourcing (software + AutoFile): the right choice for most ecommerce brands under $50M; calculation and filing are automated, internal team focuses on oversight and exception handling; all-in cost typically $15,000–$50,000/year vs. $80,000–$150,000/year for a dedicated SALT hire
- In-house SALT specialist: justified at $50M+ revenue or when complexity is unusually high (heavy B2B, multi-channel, international, active M&A); rare below that revenue threshold
- Hybrid model (most common at mid-market): compliance software for calculation and filing + internal controller or CFO as the owner of the relationship + SALT advisor on annual or project retainer for nexus analysis, audit defense, and complex questions
- What software doesn’t do: manage exemption certificates (requires separate tool or process), respond to state notices (requires human judgment), make nexus determinations for new business activities (requires advisory input), or handle audit representation
- The SALT retainer: for brands that don’t need full-time SALT staff, a CPA firm or SALT advisor on a 10-20 hour/quarter retainer ($3,000–$8,000/year) covers the judgment calls that software can’t make
- Common mistake: assuming that buying compliance software means compliance is “handled” — software automates the routine work, but someone needs to own nexus monitoring, new state onboarding, and notice management
Frequently asked questions
Should I hire someone internally to handle sales tax, or outsource it?
For most ecommerce brands under $50M in revenue, full outsourcing to a compliance software platform is more cost-effective than hiring a dedicated internal SALT specialist. A platform handles calculation, filing, and AutoFile across all states at a fraction of the cost of a full-time hire. Internal staff (controller, CFO) manage the platform relationship, review exception reports, and handle notices. A SALT advisor on retainer covers complex questions and audit defense.
When does it make sense to hire a dedicated internal sales tax specialist?
Dedicated internal SALT staff make sense when the complexity justifies the cost: large B2B operations with thousands of exemption certificates requiring active management, multi-channel operations spanning wholesale, DTC, and retail with different tax treatments, M&A activity requiring frequent due diligence and entity restructuring, or significant audit activity that warrants full-time representation experience. Most brands reach this threshold around $50M–$100M+ in revenue.
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