Sales tax automation with filing actually included.
Calculate, file, and remit sales tax across all 50 states from $49/month. No per-return fees. No connector fees. No implementation invoice.
Free nexus monitoring. Paid tiers from $49/month with filing included.
Sales tax software fixed half the problem and charged extra for the rest.
Calculation is the easy part. The pain is filing returns in every state where you've crossed nexus, before each state's deadline, without paying $25-50 per return on top of your subscription.
After Wayfair, you don't need a physical presence — just enough sales. Most states trigger nexus at $100K in revenue or 200 transactions per year. Cross either threshold and you're legally required to register, collect, and file.
Late-filing penalties stack monthly with interest. Failure-to-file penalties add 5% per month up to 25% of tax due. A single overlooked state for a year can wipe out a quarter of profit.
TaxJar and Avalara charge a per-state filing fee on top of their subscription. A 10-state e-commerce business pays $250-500/month in filing fees alone — separate from the software.
Even with calculation software, finance teams spend 30-60 hours per quarter pulling reports, reconciling marketplace facilitator data, and manually filing returns the software refused to file for them.
From signup to filed in under a week.
Most customers are calculating tax at checkout the same day and have their first state return filed by the next deadline.
Connect your store
One-click connect to Shopify, BigCommerce, WooCommerce, Stripe, Amazon, Etsy, or QuickBooks. Historical sales data syncs in under 5 minutes — no CSV imports, no consultant.
We map your nexus exposure
TaxSync scans your sales history against every state's economic-nexus thresholds, flags where you've crossed (and where you're within 90 days of crossing), and walks you through registering with each state DOR.
Tax calculates at checkout
Real-time API calculates the right rate for every order — destination-based, origin-based, marketplace facilitator carve-outs, product taxability, sales-tax holidays. Sub-50ms response time.
We file and remit on the deadline
On every state's filing schedule we prepare the return, sign as your authorized agent (with PoA on file), submit to the state, and remit collected tax — all inside the $49-299/mo subscription. You get a copy of every confirmation.
Everything You Need, Nothing You Don't
Sales tax compliance shouldn't require a six-figure budget or a dedicated team
Real-Time Calculations
Accurate tax rates for 13,000+ jurisdictions. Product taxability rules, exemptions, and economic nexus thresholds built in.
Automated Filing
We file your returns automatically. No extra fees, no manual exports. Filing is included at every pricing tier.
Nexus Monitoring
Track your sales across all states. Get alerts when you approach economic nexus thresholds before you hit them.
50-State Coverage
Full coverage across all US states and territories. Home-rule states like Colorado and Louisiana? We handle those too.
Instant Integration
Connect Shopify, WooCommerce, Amazon, or any platform in minutes. Pre-built connectors included free.
Audit Protection
Full audit trail and documentation. If a state questions your returns, we provide the backup you need.
Compliance Dashboard
See your tax liability across all states at a glance. Track registrations, due dates, and filing status.
Automatic Updates
Tax rates change constantly. We monitor all 13,000+ jurisdictions so you don't have to.
Connects to where you already sell.
Native integrations on day one. No connector fees, no per-platform add-ons, no implementation services invoice.
E-commerce platforms
- Shopify
- BigCommerce
- WooCommerce
- Magento
- Squarespace
- Wix
Marketplaces
- Amazon
- Etsy
- eBay
- Walmart Marketplace
- Faire
- Mercari
Payments & subscriptions
- Stripe
- Stripe Billing
- Recurly
- Chargebee
- Paddle
Accounting & ERP
- QuickBooks Online
- Xero
- NetSuite
- Sage Intacct
- FreshBooks
Don't see your stack? We have a REST API and webhooks. If you can read a customer's shipping ZIP, we can return the right tax rate in under 50ms.
The Real Cost Comparison
Most tax software hides fees until you're locked in. We don't.
| TaxSyncRecommended | TaxJar | Avalara | Stripe Tax | Anrok | Vertex | |
|---|---|---|---|---|---|---|
| Base Pricing | $49-299/mo | $19-99/mo + fees | $300-12K+/yr | 0.5% per txn | $499+/mo | $20K-70K+/yr |
| Filing Included | ||||||
| Per-State Filing Fees | $0 | $25-50/state | $40+/state | Self-file | Per-state add-on | Extra |
| Connector Fees | $0 | $0 | $500-2K | $0 | $0 | Extra |
| Implementation Cost | $0 | $0-500 | $2K-15K | $0 | $0 | $10K-50K |
| Transparent Pricing |
Typical Tax Software (10 states)
TaxSync Growth (15 states)
Save $4,200/year on the same compliance coverage
Why TaxSync?
We built the tax software we wished existed
No Filing Surprises
Filing is included at every tier. No per-return fees that balloon your costs as you grow.
5-Minute Setup
Connect your store, import your registrations, and you're compliant. No consultants required.
Predictable Costs
Know exactly what you'll pay this month and next year. Budget with confidence.
Built for Growth
Start with 5 states, scale to 50. Same platform, same simplicity, transparent upgrades.
Real Human Support
Tax questions? Reach a real person who understands sales tax, not a chatbot.
Built For You
Whether you're a solo seller or enterprise
E-commerce Sellers
Shopify, WooCommerce, BigCommerce, Amazon—connect any platform and automate compliance.
DTC Brands
Shipping nationwide? We handle the complexity of multi-state nexus and marketplace rules.
Multi-Channel Retailers
Consolidate tax compliance across all your sales channels in one dashboard.
Accountants & Bookkeepers
Manage multiple clients from one account. Bulk filing, consolidated reporting.
SaaS Companies
Navigate the complexity of software taxability rules across different states.
Built for the people who sign your tax returns.
Tax software is a fiduciary tool. We treat security and audit-readiness like compliance, not marketing.
SOC 2 in progress
Type II audit underway. We can share interim policies, vendor list, and our security questionnaire under NDA today.
AES-256 + TLS 1.3
All sales data encrypted at rest in dedicated US-region storage. All API traffic over TLS 1.3 with HSTS enforced.
PoA-backed filing
We sign as your authorized agent under a limited power of attorney. Every state's PoA is on file, auditable, and revocable on demand.
Audit-trail log
Every calculation, registration, and filing is timestamped, signed, and retrievable for 7 years — the standard state-DOR audit window.
GDPR + CCPA ready
Customer PII is minimized to what's required for tax reporting. We sign DPAs and support data-subject-access and deletion requests.
Free historical reconstruction
Switching from Avalara or TaxJar? We back-file up to 36 months of returns at no extra fee — included in your subscription.
Simple, Transparent Pricing
Filing fees included at every tier. No surprises, no hidden costs.
No credit card required to get started
Free
Monitor your nexus exposure
Starter
For growing businesses
Growth
For scaling operations
Scale
For high-volume sellers
Filing Fees: $0
Unlike TaxJar ($25-50/state) and Avalara ($40+/state), we include filing at every paid tier. That's up to $6,000/year in savings for a 10-state business.
Frequently Asked Questions
Everything you need to know about TaxSync
Stop paying per-return fees.
Free nexus monitoring kicks in the day you sign up. The moment you cross into a state where you owe sales tax, we'll tell you — and offer to register, file, and remit for a flat monthly fee with no per-return charges, ever.