Sales tax compliance
for Seattle businesses.
AI-powered nexus monitoring, state and city registrations, monthly returns, marketplace rules, exemption certificates. State, county, city, and special district taxes — handled end-to-end.
Every state filing, tracked in one place.
Active filings, monitoring states approaching nexus, exact amounts due each month. No more state portal logins. No more notice surprises. Just a single live view.
If you sell across state lines, you owe sales tax in places you've probably never thought about — and the moment you cross a threshold, you owe it retroactively.
Economic nexus thresholds vary by state. Most are around $100K in sales or 200 transactions. Cross one and you have 30–90 days to register before penalties start. Multiply that by 50 states, throw in marketplace facilitator rules, exemption certificates, and product taxability — and it's a full-time job. Or it's our job.
We file in every state.
Active filings across our client base — we can register you in any state in the country, usually within a week.
Know where you owe
before deadlines hit.
We track your revenue, nexus thresholds, filing schedules, city tax obligations, estimated tax due, and upcoming deadlines by jurisdiction. You always know where you're compliant, where you're approaching a threshold, and what needs to be filed next.
Q3 Compliance Overview
| Jurisdiction | Revenue | Status | Filing | Est. tax | Due |
|---|---|---|---|---|---|
| Oklahoma | $80,000 | Under threshold | — | $0 | — |
| Illinois | $40,000 | Filing required | Monthly | $1,240 | Apr 20 |
| Chicago, IL | $40,000 | City tax review | Monthly | Bundled | Apr 20 |
| Texas | $125,000 | Filing required | Quarterly | $2,875 | Apr 30 |
| Denver, CO | $18,000 | City filing | Monthly | $420 | Apr 20 |
State, county, city, special district.
Sales tax isn't one-size-fits-all. We track every layer of jurisdiction — including the local taxes most firms miss.
Every state with sales tax has its own thresholds and filing schedules. The starting point for every business selling across state lines.
Many states allow counties to add their own rates on top of the state's. We track which counties apply to your specific sales locations.
Chicago, Denver, New Orleans, and hundreds more have their own city-level filings — separate returns, separate schedules.
Transit districts, stadium districts, tourism districts — small additions that add up across your jurisdictions if they're missed.
Resale certificates
If you're reselling, we manage the certificates you need to give suppliers to avoid paying sales tax twice.
Exemption certificates
Collected, validated, and stored from your tax-exempt B2B customers — audit-ready the moment a state asks for them.
Full sales-tax compliance.
Eight workflows handled end-to-end. AI handles the monitoring; a sales tax specialist signs off on every filing.
Nexus monitoring
AI tracks your sales by state and city monthly, flagging thresholds before you cross them.
State and city registrations
Cross a threshold? We register on your behalf, usually within a week.
Monthly returns
Filed in every state and city where you owe — on time, every cycle.
Marketplace rules
Amazon, eBay, Etsy, Shopify Markets — we know which states cover what.
Sales tax certificates
Resale and exemption certificates — collected, validated, and stored for audit-ready compliance.
Product taxability mapping
We map your SKUs to per-state and per-city taxability rules.
Voluntary disclosure agreements
Behind? We negotiate VDAs to limit penalties and back-tax.
Audit defense
State sends a notice or audit? We respond and represent.
Common questions.
How do I know if I have nexus in a state?
What about Amazon FBA inventory?
Will I owe back taxes if I haven't been filing?
How much does ongoing compliance cost?
Ready to hand off your sales tax?
Book a 30-minute demo. We'll show you what your current setup is missing and how we close the gap.