AI and Sales Tax Audits: What E-Commerce Businesses Should Prepare For
Understand how data-driven enforcement may affect online sellers and how to prepare your records and processes.
🇺🇸 US SALES TAX • E-COMMERCE • COMPLIANCE
Your Sales Tax.
Handled.
From nexus and registrations to monthly returns, notices and historical cleanup, Apex Sales Tax manages your US sales-tax compliance so you can focus on growing your business.
★★★★★5.0 from 200+ e-commerce businesses
Apex Dashboard
Overview
Nexus Monitor
Returns
Registrations
Notices
Reports
Settings
Compliance StatusHealthy
States Monitored18
States Registered15
Returns This Month12
Open Notices0
Nexus Alerts2
Nexus MapLive monitoring
USA
Registered Monitoring Nexus Detected No Nexus
BUILT FOR MODERN E-COMMERCE
ShopifyAmazonWalmartEtsyWooCommerce
THE PROBLEM
Sales tax shouldn’t slow down your growth.
Nexus
Don't know where you're required to register?
Reconciliation
Shopify, Amazon and other channels don't always make compliance simple.
State Notices
Got a notice from a state you've never dealt with?
WHAT WE DO
Everything you need to stay sales-tax compliant.
One experienced team for the full US sales-tax lifecycle.
Sales Tax Returns
Accurate, timely filing for monthly, quarterly and annual returns.
Learn MoreNexus Analysis
Identify where your business may have sales-tax obligations.
Learn MoreState Registration
Handle registrations so you can stay ahead of compliance.
Learn MoreSales Tax Rescue
Historical exposure, backfiling and cleanup made manageable.
Learn MoreVDA
Voluntary disclosure agreements to help resolve historical liabilities.
Learn MoreNotice Resolution
We respond to state notices and help handle correspondence.
Learn MoreWHY APEX
Not just another tax software.
Software can calculate tax. Software can generate reports. But someone still needs to own your compliance.
That’s where Apex comes in. We combine technology, AI-assisted workflows and experienced sales-tax professionals to manage your compliance from beginning to end.
APEX INTELLIGENCESmarter compliance.
Smarter compliance.
Less manual work.
AI-assisted data analysis
Exception detection
Notice organization
Automated compliance reports
PRICING
Simple pricing. No surprises.
Choose the level of support that fits your sales-tax footprint.
Essentials
$249/mo
For small e-commerce businesses.
- Up to 5 states
- Up to 8 returns/month
- 1 sales channel
- 1 entity
- Up to 2,500 transactions/month
- Basic nexus monitoring
- Email support
MOST POPULAR
Professional
$449/mo
For growing e-commerce businesses.
- Up to 15 states
- Up to 20 returns/month
- Up to 3 sales channels
- 1 entity
- Up to 15,000 transactions/month
- Nexus monitoring & quarterly review
- Monthly reconciliation
- Priority support
Managed
$899+/mo
Your outsourced sales-tax department.
- Up to 30 states
- Up to 40 returns/month
- Up to 5 sales channels
- Up to 2 entities
- Up to 50,000 transactions/month
- Advanced nexus monitoring
- Dedicated account manager
- Monthly management report
Need something more complex? We’ll build a custom plan around your business.
No long-term contract No setup fees Secure & confidential Cancel anytime
FREECheck
- Sales footprint
- Nexus exposure
- Current registrations
- Filing obligations
- Historical exposure
FREE SALES TAX EXPOSURE CHECK
Find out before the state does.
Get a preliminary review of your sales-tax footprint and a clear list of next steps.
Quick & freeExpert reviewActionable report
HOW IT WORKS
Compliance without the complexity.
01
Analyze
We understand your business and sales footprint.
02
Register
We identify and handle required registrations.
03
Monitor
We monitor nexus and filing obligations.
04
File
We prepare and file your returns.
05
Manage
We handle notices, changes and ongoing compliance.
WHO WE HELP
Built for businesses that sell everywhere.
01
Shopify Brands
02
Amazon Sellers
03
E-commerce Companies
04
Supplement Brands
05
Beauty & Cosmetics
06
Consumer Products
LATEST INSIGHTS
Sales Tax Insights for E-Commerce Businesses
Practical guidance to help online sellers navigate US sales tax.
Sales Tax Nexus Explained: Physical Nexus vs. Economic Nexus
Learn how inventory, people, sales activity and state thresholds can create sales-tax obligations.
Sales Tax Voluntary Disclosure Agreements (VDAs): A Guide for E-Commerce Sellers
Explore when a VDA may help address past exposure, what eligibility can depend on, and what records to prepare.
2026 State-by-State Economic Nexus Thresholds for Sales Tax
Use a state-by-state threshold chart as a starting point, then verify current rules and measurement periods.
Have a sales-tax question?
Send us a message. We’ll get back to you.
No obligation. Your information will be used to respond to your inquiry.