Number X vs TaxJar

Tax calculation is only a piece of the puzzle

TaxJar is one of the most widely used sales tax automation platforms. It helps businesses calculate the correct tax at checkout, monitor nexus thresholds and prepare tax reports, particularly for companies selling in the United States.

For many businesses, that's exactly what's needed.

But calculating tax is only one step in a much larger compliance process.

Once tax has been calculated, someone still needs to register for tax where required, file returns, remit the collected tax to local authorities, monitor regulatory changes and remain legally responsible for staying compliant.

That's the point where Number X takes a fundamentally different approach.

Instead of providing software that helps you manage tax, Number X removes tax management from your business altogether.

Tax software still leaves the responsibility with you

TaxJar makes tax calculation easier, but it doesn't become the seller of your products.

Your company remains responsible for determining where it has tax obligations, registering with tax authorities, filing returns, remitting taxes on time and responding to regulatory changes as your business expands into new markets.

For finance teams, tax software reduces manual work without eliminating the underlying responsibility.

Number X works differently because we operate as your Merchant of Record.

As the legal seller, we calculate indirect taxes, collect them at checkout, file returns and remit taxes to the appropriate authorities. We also assume the compliance obligations that come with selling internationally, allowing your team to focus on running the business rather than managing tax operations.

A tax calculator doesn't replace a tax operation

As companies grow internationally, their tax stack often becomes increasingly fragmented. A payment processor handles transactions, while TaxJar calculates tax and an accounting firm prepares filings.

Internal finance teams reconcile reports and monitor deadlines.

The result is a workflow that spans multiple systems and multiple vendors, with the business still coordinating everything internally.

Number X replaces that fragmented process with a single operational model.

Instead of licensing another tax tool, businesses outsource the entire tax function to Number X as their Merchant of Record.

Built for global commerce, not just tax calculations

Tax calculation is one part of international commerce, but it's rarely the most difficult one.

Businesses also need to manage payments, fraud, chargebacks, buyer support, invoicing, regulatory compliance and tax obligations across multiple jurisdictions.

Number X brings those responsibilities together under a single Merchant of Record platform. Rather than integrating separate products for each operational function, companies can manage global sales through one commercial infrastructure with a single contractual relationship.

Which solution fits your business?

If your goal is to calculate sales tax more accurately while continuing to manage tax registrations, filings and compliance internally, TaxJar is an excellent solution and one of the market leaders in tax automation.

If your goal is to stop managing tax altogether, you're solving a different problem.

Number X is designed for businesses that want to outsource the operational and legal responsibilities of global tax compliance rather than adding another tax tool to their existing stack.

The difference isn't whether taxes are calculated correctly. Both platforms help businesses stay compliant.

The difference is who remains responsible after the calculation is complete. Number X handles VAT, GST and Sales tax end-to-end.