Your Sales Tax
Compliance Command Center

Centralize compliance information. Connect your systems to track physical and economic nexus, collect and AI-validate certificates, and keep filing evidence and DOR access in one secure vault.

No credit card required.

AES-256 Encryption
Tax System Integrations
All 50 States + DC
Audit-Ready Controls
Live Rate Lookup

Sales Tax Compliance is Scattered. We Bring It Together.

Credentials in spreadsheets, certificates in email threads, and nexus signals buried across the systems you already use. Sound familiar? It's time for a single source of truth.

Without Sales Tax Vault

  • Physical and economic nexus status is unclear
  • No clear view of where you're registered or what is due
  • DOR logins scattered across inboxes and spreadsheets
  • Certificates buried in email threads and shared folders
  • Audit evidence takes days to pull together

The Transformation

Import what you already have. Connect the systems you already use. Organize your credentials, filings, registrations, certificates, and nexus signals into one workspace so you can see risk early and prove compliance fast.

See all features

With Sales Tax Vault

  • Encrypted credential storage with one-click access
  • Registrations, filing cadence, and history by jurisdiction
  • Exempt customers & certificates managed in 1 place
  • Physical and economic nexus signals tracked over time
  • Audit-ready evidence & documents, organized by state

Bring Sales Tax Compliance Into One System of Record

Connect your stack. Track nexus signals. Keep credentials, exemptions, and evidence organized in one place.

Nexus Signals

Monitor physical and economic nexus in one place. Connect the systems you already use to track employee, inventory, ship-from, and sales threshold signals over time.

  • Track physical presence signals
  • Monitor economic nexus thresholds
  • See unregistered exposure alerts
  • View your footprint by state

Exempt Customers

Request, collect, and manage exemption certificates in one place. Built-in checks flag missing fields and common issues so you can resolve problems before they cause exposure.

  • Completeness checks
  • Customer self-service portal
  • Expiration tracking
  • Centralize compliance evidence (filings, notices, documents)

Registrations & DOR Access

Track registrations, filing frequencies, and portal access by state. Store DOR credentials securely with AES-256 encryption and keep the "why" notes that matter for audits and handoffs.

  • Registration tracking by state
  • Filing frequency and IDs in one place
  • Encrypted credential & security question storage
  • Quick-link to 50+ DOR portals

Filings Evidence

See what was filed, when, and for how much, with confirmations attached for audit support. Optionally connect your filing or tax automation system to pull filings evidence automatically.

  • Filing history by jurisdiction
  • Downloadable confirmations & evidence
  • Monthly and period summaries
  • Amounts filed and remitted

Document Vault

Store and organize compliance documents by state, period, and category, including notices, registrations, certificates, and supporting evidence. Fast search keeps audit requests from becoming fire drills.

  • Encrypted document storage
  • Organize by state, period, or category
  • Quick search and bulk download
  • Audit-ready organization

Taxability & Rate Lookup

Look up sales tax rates for any US location and document product taxability decisions by state. Save notes and supporting context so the rationale stays consistent across tools and audits.

  • Lookup rates by address or ZIP
  • See full jurisdiction breakdown
  • Document taxability decisions by state
  • Save notes and lookup results

Categories are used for internal organization and consistency. Final tax treatment depends on jurisdictional rules and your configured tax systems.

Connect the Systems You Already Use

Sales Tax Vault becomes your system of record by connecting to the tools where compliance data already lives. Surface physical and economic nexus signals, keep filings evidence and certificates organized, and stay audit-ready even as your team or systems change.

  • Track physical presence signals (inventory, ship-from, 3PL)
  • Monitor economic nexus thresholds from sales and transactions
  • Centralize compliance evidence (filings, notices, documents)
  • Keep credentials, certificates, and notes tied to each jurisdiction

Common connection categories:

ERP & Accounting Billing & Subscriptions Ecommerce Payroll & HR / 3PL

Tax automation (available now): Avalara AvaTax

Connect your Tech Stack

Built for Teams Managing Sales Tax

Whether you manage compliance in-house, work with an outside firm, or both, Sales Tax Vault keeps credentials, evidence, certificates, and nexus signals in one source of truth, connected to the systems you already use.

Finance & Accounting Teams

Keep compliance organized and audit-ready. See where you are registered, what is due, and where risk is emerging with physical and economic nexus signals in one place.

Scaling Businesses

Track physical and economic nexus signals and stay ahead of registration and filing obligations. Manage exempt customers and taxability decisions consistently as you grow.

Tax Consultants & CPAs

Manage multiple clients from one workspace. Standardize evidence, notes, and credentials across client teams, and maintain continuity when clients change providers or internal staff.

Simple, Transparent Pricing

All core features included. Start simple, add volume as you grow.

Starting at
$19/month
Your system of record for sales tax compliance
  • All 50 states + DC workspace
  • Encrypted DOR credential storage
  • Document vault + audit-ready organization
  • Nexus signals overview (physical + economic)
  • Taxability notes + rate lookup

Includes tracking for up to 100 exempt customers. Need certificate uploads, reminders, and automation? See the Professional plan.

Ready to Take Control of Your Sales Tax Compliance?

Start your free trial today. No credit card required.

Built by tax pros
AES-256 encryption and role-based access
All 50 states + DC supported