EasyFiling
IRS Certified Acceptance Agent

Find out where you
owe US sales tax — in 2
minutes, free.

Find out where your business may owe US sales tax with a fast, accurate nexus check. Get clear answers in minutes, completely free.

ISO 27001 Certified
IRS e-file Certified
Secure & private
45 states covered
Your nexus checkFree · 2 min

Enter your state's sales and we estimate nexus across all 45 states that charge sales tax. No SSN needed.

What's included

Everything sales tax needs, in one place.

One service covers analysis, registration, filing, and the paperwork — so you never have to learn 45 sets of state rules.

Nexus analysis

We check your sales against every state’s threshold and tell you exactly where you have an obligation — and where you don’t yet.

Multi-state registration

We obtain a sales tax permit in each state where you owe and manage every active state portal and login for you.

Filing frequency setup

Each state assigns how often you file. We set the right schedule for state sales so you never file too late or too often.

Deadline reminders

Clear alerts ahead of every due date, plus a single dashboard showing what’s filed and what’s coming up.

Document vault for permits

Every permit, registration, and filed return is stored securely in one place — ready to download whenever you need proof.

Not sure what you need?

Start with the free check — it tells you which of these you actually need right now.

Check where I owe
How it works

From “I have no idea” to fully compliant — handled for you.

Same hands-off process EasyFiling founders already trust for their LLCs. You approve; we do the paperwork.

01~2 min

Run your free nexus check

Tell us where and how much you sell. We show every state where you owe or soon will — with no commitment.

02we do it

We register your permits

We apply for a sales tax permit in each state where you have nexus and handle the state paperwork end to end.

03ongoing

We file & remit on schedule

Monthly, quarterly, or annually — whatever each state requires. We file the returns and send the tax you collected.

04automatic

Stay compliant automatically

We watch your thresholds as you grow and flag new states before you cross them. No missed deadlines.

The problem, made simple

Sales tax follows your customers — not your address.

There are two ways a US state can require you to collect sales tax. As an online seller abroad, the second one is the one that catches founders off guard.

Physical nexus

A physical tie to a state — an office, employees, or inventory stored there (including in an Amazon warehouse). If you have it, you owe.

Most non-resident founders don't have this — but FBA inventory can create it without you noticing.
Most common for you

Economic nexus

Enough sales into a state — no office or staff required. Cross a state's sales or order threshold and you must register and collect, even from another country.

Created by the 2018 South Dakota v. Wayfair ruling. Every state sets its own threshold.

The threshold most states use

In a typical state, economic nexus kicks in when, in a year, you pass either line below. You don't need both — whichever comes first.

Thresholds vary: some states use $100k only, a few set at $500k, and a handful count transactions differently. Our check applies each state's real rule for you.

Sales into the state

$100,000 / year

Separate transactions

200 orders / year
0+businesses served
0+countries we work with
0+states where sales tax, covered
$0to find out where you owe
The problem, made simple

Everything you need, handled.

1

Calculate

Instantly calculate accurate sales tax at checkout — even during peak demand — using up-to-date rates and address validation.

2

Report

Get detailed, up-to-date reports on sales and sales tax collected or due by state and jurisdiction — all at your fingertips.

3

File & Remit

Save time and reduce errors by automatically submitting returns and remittance to each jurisdiction. Never miss a deadline again.

Automated Nexus Analysis

We sync with Shopify, Stripe, Amazon, and more to monitor your sales volume across all 50 states in real time.

Document Vault

All your tax IDs, resale certificates, and filing confirmations in one secure, accessible place.

Multi-state Registration

Applying for permits in 1 or 40 states is the same effort for you. We manage the entire state-by-state process.

Deadline Reminders

Never miss a monthly or quarterly filing. Our system tracks every deadline and reminds you well in advance.

Transparent pricing

One clear service fee. State fees at cost — never marked up.

You pay EasyFiling for the work. Whatever a state charges for a permit, you pay that exact amount — we show you the receipt.

State registration

One-time, per state where you owe

$99 / state

Filing & remittance

We file returns and remit on your schedule

$39 / state / mo

State permit fees

Set by each state — most are $0–$100

At cost

passed straight through

Check where I owe sales tax

You only pay once you have a state to register.

No hidden fees. Ever.

  • No markup on state fees — you see what the state charged.
  • No charge for the nexus check — it's genuinely free.
  • No long-term contract — pause or cancel anytime.
  • Only pay for states where you actually have nexus.

Prices in USD. A typical online seller owes in 1–3 states — not all 45.

Testimonials

Feedback About Their Sales Tax Experience With Us

Read what real clients — non-residents, expats, and foreign founders — say about their experience with EasyFiling, from LLC formation to EIN, taxes, and bookkeeping.

I had no idea our sales in three states meant we needed to register. EasyFiling found every obligation and handled the permits without making me learn tax law.

Carolina Stukenberg

Feb 19, 2026

Carolina Stukenberg testimonial
The nexus check took two minutes and the filing process was completely clear. We now have every permit, deadline, and return organized in one place.

Helen Ben

May 8, 2025

Helen Ben testimonial
EasyFiling made sales tax feel manageable. They registered our business, filed the returns, and kept us updated whenever a state rule changed.

Marvi Kiko

April 12, 2025

Marvi Kiko testimonial
I had no idea our sales in three states meant we needed to register. EasyFiling found every obligation and handled the permits without making me learn tax law.

Carolina Stukenberg

Feb 19, 2026

Carolina Stukenberg testimonial
The nexus check took two minutes and the filing process was completely clear. We now have every permit, deadline, and return organized in one place.

Helen Ben

May 8, 2025

Helen Ben testimonial
EasyFiling made sales tax feel manageable. They registered our business, filed the returns, and kept us updated whenever a state rule changed.

Marvi Kiko

April 12, 2025

Marvi Kiko testimonial
FAQs

Frequently Asked Questions About IRS Sales Tax

Find clear answers to the most common questions about US sales tax for non-residents, foreign LLCs, and expats — from nexus to registration to filing.

Possibly. Sales tax is based on where your customers are, not where you live. If your sales into a US state cross its economic nexus threshold, you’re required to register and collect there — your own location and citizenship don’t change that.

Economic nexus is a sales or transaction threshold that creates a sales-tax collection obligation, even when you have no office, employees, or inventory in that state.

Alaska, Delaware, Montana, New Hampshire, and Oregon do not have a statewide sales tax. Local rules can still vary, so we check the exact states where your customers are located.

We handle the complete process: state registration, return preparation, filing, and remittance according to each state’s required schedule.

The free nexus check takes about two minutes. We use your sales and customer-location information to identify where you may need to register.

Take the stress out of US sales tax.

Join thousands of global sellers who trust EasyFiling to handle their US compliance. No credit card required to check your nexus.

EasyFiling sales tax compliance support