How to Get Started
Create your account online, then schedule a Welcome Call to review your business and service needs.
Create Your Account
Create your secure portal login with your name, email address, and password.
Add Your Company
Enter your business name – no tax IDs or documents required to begin.
Choose Services
Select exactly what you need: help with registrations, filings, cleanup, multi-state support, or other services.
We Handle the Rest
Our team manages the filings and keeps you compliant — fast, affordable, and online.
No pressure. No sales calls. Just expert support through a secure, easy-to-use portal, email, chat, or video calls.
Ready to Simplify Your Sales Tax?
Start online, then meet with our team on a Welcome Call to confirm your service needs. No software to install.
Popular Seller Platforms
Our Clients Sell On
INVOICING SOFTWARE
Don't see the platform or invoicing system you use?
That's okay! We work with any sales data. Every business has unique needs and a unique system to go with that. No need to change your system just to collect and remit sales tax. We'll work with what you have.
Our Sales Tax Solutions
All sales tax solutions are offered completely online with flexibility in mind. Simple, fast, and convenient.
Registration
Assistance with sales tax registration in one or multiple jurisdictions
E-file tax account setup
Includes international VAT and Canadian Sales Tax
Get expert help registering quickly so you don’t miss filing deadliness
Filing
Periodic return preparation & submission
- Supports all frequencies
- Includes any prepayment filing requirement
Stay compliant with peace of mind — month after month
Compliance
Nexus determination
- Delinquent return & amendment filing
- Audit assistance
- Sales tax rate database
Let us handle the surprises so you can stay focused on growth
Client Support
Account management
Notice handling
Free sales tax consulting
- Free amendment filing
- Rate research
Attentive service to all your needs is included
Simple, Flexible Pricing Designed for Real-World Compliance
Month-to-month pricing based on the number of jurisdictions you file in — with reduced rates per return. No contracts. No surprise fees.
Low Monthly Subscription
You’ll pay a flat monthly fee based on how many states you file in. This keeps your sales tax process organized, supported, and affordable — especially for multi-state sellers.
✔ Portal access
✔ Service tracking
✔ Client support included
Discounted Per-Return Filing Fees
Filing fees are reduced for all clients on a subscription. You only pay for the returns you file — no inflated rates or hidden charges.
✔ Pay only for what you file
✔ Competitive pricing
✔ Transparent billing
Month-to-Month Flexibility
No annual lock-ins, no prepayment requirements, and no cancellation penalties. Just expert-led compliance on your schedule.
✔ Cancel anytime
✔ No long-term contracts
✔ Scale up or down
Billed Monthly Based on Expected Filings
We bill at the beginning of each month based on the jurisdictions you’re expected to file in. This ensures your returns are prepared on time, with no surprise invoices or back-and-forth.
✔ Clear, upfront billing
✔ Adjusts automatically as needs change
✔ Know what you’ll pay
Don’t file every month?
We offer a $0/month plan for low-frequency filers. You’ll only pay a slightly higher per-return fee — no surprise charges, no obligations.
Why Businesses Choose SalesTaxSolutions.US for Their Sales Tax Solutions
As your business grows, so does your sales tax complexity. Managing multi-state returns, staying current on rate changes, and responding to notices takes time — and mistakes can cost you. That’s why so many companies trust SalesTaxSolutions.US to handle their compliance with affordable, expert-managed sales tax solutions.
No software to learn
Secure online portal
Expert human oversight
Month-to-month flexibilty
Responsive support, based in the U.S.
Transparent, need based pricing
Outsourcing Done Right
We make sales tax compliance simple — you provide access, we handle the rest. Whether you’re filing in one state or twenty, our team ensures everything is accurate, on time, and audit-ready. Clients can even authorize secure remote access, saving time and effort every month.
Save Time, Cut Costs, Stay Compliant
Less time spent on repetitive filing tasks
Fewer errors and penalties
No internal training, turnover gaps, or software learning curves
Easy access to returns, payment vouchers, and support documentation
What Happens After You Create Your Account?
Schedule Your Welcome Call
We Review Your Info
During the Welcome Call, we verify your company details and review service needs — such as assistance with new state registrations.
We Set Up Your Services
Still Have Questions?
Celebrating 20 Years of Trusted Sales Tax Solutions
Celebrating 20 Years of Trusted Sales Tax Solutions
SalesTaxSolutions.US was founded in 2005 by an accountant who saw firsthand how overwhelming sales tax compliance could be for small businesses. His vision: create a firm that delivers expert-led, easy-to-use sales tax solutions without relying on bloated software or long-term contracts.
Now celebrating our 20th anniversary in 2025, we’ve grown from a solo practice into a trusted partner for over 100 businesses across the U.S. Our team still follows the same founding principle: combine deep expertise with a client-friendly portal to make compliance clear, affordable, and efficient.
Founded in 2005 — 20+ years of experience
200+ clients served across the world
Personalized support from a U.S. based team
Real Numbers Behind Our Sales Tax Solutions
From new business registrations to multi-state filings, here’s a look at what we’ve helped our clients accomplish.
Returns Filed
Companies Served
Cups of Coffees Consumed
Years of Service
Returns Filed
Cups of Coffees
Clients
Years of Service
OUR news
Latest from our Blog
Get caught up on sales tax compliance laws, tax rate changes, IRS updates, return deadlines, and so much more.
October 2026 Sales Tax Due Dates (State-by-State Filing Calendar)
Published: September 23, 2026 Q4 opens with rate changes taking effect October 1, seasonal spikes from Halloween...
How To Register for Sales Tax in North Dakota (North Dakota Sales & Use Tax Registration Guide)
Published September 21, 2026 | Source: North Dakota Office of State Tax Commissioner | tax.nd.gov North Dakota Sales...
October 1 Sales Tax Rate Changes: What Businesses Need to Know for Q4 2026
Updated: September 30, 2026 This article is continually updated if additional October 1, 2026 rate changes are...
DIY vs In-House vs Outsourced Sales Tax Compliance
| Approach | Time investment | Cost | Risk |
|---|---|---|---|
| DIY (in-house, no specialist) | High — owner/finance team manages | Low (no service fee), high opportunity cost | High — missed deadlines, audit exposure |
| Hire in-house tax specialist | Medium — onboarding + management | $80,000-$120,000/year + benefits | Medium — single point of failure |
| Outsource to compliance partner | Low — onboarding, then hands-off | $500-$5,000/month based on complexity | Low — expertise + audit defense included |
For B2B businesses with multi-state nexus, outsourced compliance is typically the lowest-risk, lowest-overhead option.
Frequently Asked Questions
What is sales tax compliance outsourcing?
Sales tax compliance outsourcing means handing over your sales tax registration, filing, and audit defense to a specialist firm. Instead of managing multi-state tax obligations in-house, your team focuses on your business while we file returns, manage deadlines, and represent you with state revenue departments.
How do I know if I have sales tax nexus in a state?
Sales tax nexus is established when your business activity in a state crosses certain thresholds. Economic nexus is usually $100,000 in sales or 200 transactions in a year. Physical nexus comes from employees, inventory, or offices in the state. We provide nexus determination services to map your obligations across all 50 states.
Can you handle multi-state sales tax filing?
Yes. We file sales tax returns for B2B businesses across all 50 states on monthly, quarterly, or annual schedules depending on each state's requirements. Our system tracks deadlines automatically so you never miss a filing.
What if I'm already facing a sales tax audit?
We provide audit defense services, representing your business through the entire audit process. We respond to state requests, organize documentation, and negotiate where appropriate. With 20+ years of experience, we've defended hundreds of B2B clients.
What industries do you work with?
We work with B2B companies across SaaS, e-commerce, manufacturing, professional services, and multi-state retail. Our team handles complex nexus situations, marketplace facilitator rules, and platform-specific tax obligations (Shopify, eBay, BigCommerce, NetSuite, QuickBooks, Salesforce).
How does pricing work?
Pricing is based on filing frequency, number of states, and complexity of your nexus footprint. We provide custom quotes after a brief discovery call. See our pricing page for plan details, or request a quote directly.