Global Tax Compliance: What Every App Developer Needs to Know

You launch your SaaS. You get your first customer in Germany. You pop champagne.

Stop. You just triggered a tax liability.

In the physical world, you only pay sales tax where you have a "nexus"—usually a physical office or warehouse. In the digital world, that rule is dead. It has been replaced by "Economic Nexus," and it means you might owe taxes in jurisdictions where you have never set foot.

The Three Big Regimes

Global digital taxation generally falls into three buckets:

1. EU VAT (Value Added Tax)

The EU is aggressive. If you sell B2C (Business to Consumer) digital services to EU citizens, you typically must charge the VAT rate of their country, not yours (e.g., 19% in Germany, 27% in Hungary).

The Good News: You can register for the OSS (One Stop Shop) scheme, allowing you to file one single return for all 27 EU member states.

The B2B Exemption: If you sell to businesses (B2B), you can use the "Reverse Charge" mechanism. If they provide a valid VAT ID, you don't charge tax; they account for it themselves. (Crosspay handles this validation automatically).

2. US Sales Tax (The Wild West)

There is no "US Sales Tax." There are 45+ states with their own rules. However, the most critical distinction in 2026 is between SaaS (Cloud/Web Access) and Digital Downloads (Files transferred to a device).

Some states, like California and Florida, treat SaaS as a non-taxable service but tax digital downloads as "tangible personal property." Others, like New York and Pennsylvania, tax both.

View 2026 US State Taxability: SaaS vs Downloads

State	Digital Downloads	SaaS (Cloud)	Key Notes
Alabama	Taxable	Taxable	Treated as "Canned Software"
Alaska	Varies	Varies	Local jurisdictions decide
Arizona	Taxable	Taxable	Transaction Privilege Tax (TPT)
Arkansas	Taxable	Taxable	New legislation on digital products
California	Exempt	Exempt	If no tangible media transferred
Colorado	Taxable	Taxable	Home Rule cities differ
Connecticut	Taxable	Taxable	Full sales tax applies
Delaware	No Tax	No Tax	No sales tax
Florida	Taxable	Exempt	SaaS is a non-taxable service
Georgia	Exempt	Exempt	Exempt if electronic delivery
Hawaii	Taxable	Taxable	General Excise Tax (GET)
Idaho	Taxable	Exempt	Remote access generally exempt
Illinois	Taxable	Exempt	Unless specific transfer criteria met
Indiana	Taxable	Exempt	Cloud computing exempt
Iowa	Taxable	Taxable	Broad digital goods tax
Kansas	Taxable	Exempt	Exempt if operation is remote
Kentucky	Taxable	Taxable	Extended to SaaS in 2023
Louisiana	Taxable	Exempt	SaaS generally exempt
Maine	Taxable	Exempt	SaaS exempt
Maryland	Taxable	Taxable	Digital product rules include SaaS
Massachusetts	Taxable	Taxable	Transfer of rights to use software
Michigan	Taxable	Exempt	SaaS is exempt service
Minnesota	Taxable	Exempt	SaaS exempt
Mississippi	Taxable	Taxable	Generally taxable
Missouri	Taxable	Exempt	No transfer of tangible property
Montana	No Tax	No Tax	No sales tax
Nebraska	Taxable	Exempt	SaaS is non-taxable service
Nevada	Taxable	Exempt	SaaS exempt
New Hampshire	No Tax	No Tax	No sales tax
New Jersey	Taxable	Exempt	SaaS exempt (since late 2022)
New Mexico	Taxable	Taxable	Gross Receipts Tax (GRT)
New York	Taxable	Taxable	Broad taxation
North Carolina	Taxable	Taxable	Generally taxable
North Dakota	Taxable	Exempt	SaaS exempt
Ohio	Taxable	Taxable	Business use SaaS is taxable
Oklahoma	Taxable	Exempt	SaaS exempt
Oregon	No Tax	No Tax	No sales tax
Pennsylvania	Taxable	Taxable	Both are taxable licenses
Rhode Island	Taxable	Taxable	Vendor-hosted software is taxable
South Carolina	Taxable	Taxable	Generally taxable
South Dakota	Taxable	Taxable	Broad taxation on services
Tennessee	Taxable	Taxable	Generally taxable
Texas	Taxable	Taxable (80%)	SaaS is "Data Processing"
Utah	Taxable	Taxable	Consistently taxable
Vermont	Taxable	Exempt	SaaS exempt
Virginia	Exempt	Exempt	If no tangible property
Washington	Taxable	Taxable	Aggressive taxation
Washington DC	Taxable	Taxable	Digital goods/SaaS taxable
West Virginia	Taxable	Taxable	Generally taxable
Wisconsin	Taxable	Exempt	SaaS exempt
Wyoming	Taxable	Exempt	SaaS exempt

Key Definitions:

• Digital Downloads: Software transferred to the user's device (e.g., .exe, .dmg, mobile app binary). Often treated like a physical CD-ROM.
• SaaS (Cloud): Software hosted on the vendor's server. Users access it via browser. Often classified as "Information Services" or "Data Processing" rather than software.

3. GST & The Rest of the World

Australia, Canada, India, and Japan all have their own versions of GST/JCT on digital goods. They often have lower thresholds for registration than the US.

How to Stay Out of Jail

Unless you want to hire a full-time tax compliance officer, key recommendations from experts include:

• Monitor Your Thresholds: In the US, the standard for Economic Nexus is typically $100,000 USD in sales OR 200 transactions annually in a specific state.
• Collect Evidence: Tax authorities require two non-conflicting pieces of evidence to prove a customer's location (e.g., IP address AND billing address).
• Use a Merchant of Record (MoR): This is the nuclear option. Platforms like Crosspay or Paddle act as the reseller. We are the ones technically selling the software to your user, so we handle the tax liability. You just get a payout.

Conclusion

Ignorance is not a defense. If you are selling software globally, you are a global taxpayer. The question is whether you want to manage that compliance yourself or offload it to infrastructure.