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Measured on six things

Automated sales tax, VAT, and GST calculation for online ...

Security

HTTPS enforced, but missing HSTS, CSP, frame protection, and DMARC. No SOC 2 or ISO reports found. Basic security hygiene is there, but not enterprise-grade.

Screenshots

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GoodVat

About this app

GoodVat is a modern tax automation platform designed to eliminate the headache of sales tax, VAT, and GST compliance for online sellers. It offers a suite of developer-friendly APIs for address normalization, geocoding, and global tax calculation, all backed by a promise of 99.5% accuracy, 10ms response times (p99), and a 99.99% uptime SLA. The platform is built for e-commerce integrations, with Shopify and WooCommerce plugins in the pipeline, but its APIs are accessible today for developers to build custom solutions. What sets GoodVat apart is its focus on infrastructure: the same APIs power the plugins, ensuring consistency and reliability. With flat pricing starting at $5/month, it's an accessible solution for small and large businesses alike. Whether you're a solo seller dealing with multi-state nexus, a developer looking for a robust tax API, or an e-commerce platform aiming to simplify tax compliance, GoodVat offers a streamlined, data-driven approach to a notoriously complex ...

Key features

1Address Normalization API with 99.5% accuracy, 10ms p99 latency, and 99.99% uptime SLA
2Flat pricing at $5/month with unlimited requests for Address Normalization
3Developer-friendly REST API with multi-language code examples and live demo

Target customer profile

Drawn from the product itself, not from a survey.

Demographic

Small to medium online sellers

Pain points

Spending hours manually calculating sales tax, making errors, struggling to keep up with changing rates and regulations.

Primary needs

Automated tax calculation, accuracy, ease of use, e-commerce platform integration.

Demographic

Developers and integrators

Pain points

Lack of reliable tax APIs, complexity in building tax logic, challenges in address validation and geocoding.

Primary needs

Simple REST APIs, predictable JSON, low latency, comprehensive documentation.

Demographic

E-commerce platforms and agencies

Pain points

Difficulty managing tax compliance for multiple clients, inconsistent data, high operational costs.

Primary needs

Scalable API infrastructure, multi-jurisdiction coverage, automation, compliance support.

Scout Review

Written by AI from measured evidence, scored out of 100.

GoodVat is a promising tax automation platform with a strong landing page, solid docs, and a clear developer-first pitch. The live Address Normalization API works as advertised, and the $5/month flat pricing is refreshingly honest. However, the product is early: only one of three planned products is live, and security headers are incomplete. For a solo seller or developer looking for a simple address normalization API, it's a great deal. For anyone needing full tax calculation, it's a wait-and-see. The foundation is solid, but the house isn't finished.

Measure by measure

Usability

Clear docs with 5-step quickstart and multi-language code examples. Live API demo on homepage is a nice touch. Pricing is straightforward, but navigation has a dropdown and multiple resource links that may require scanning.

Design

Polished, modern landing page with live API demo and cohesive green accent. But two of three product cards marked 'COMING SOON' and a dense footer undercut the polish.

Speed

Lighthouse mobile performance 89/100 (LCP 3.1s, CLS 0, TBT 31ms), desktop 100/100. Site claims 10ms p99 API latency. No user complaints found.

Security

HTTPS enforced, but missing HSTS, CSP, frame protection, and DMARC. No SOC 2 or ISO reports found. Basic security hygiene is there, but not enterprise-grade.

Accessibility

Lighthouse accessibility 97/100, with only contrast and accessible-name issues. Skip-to-content link present, keyboard navigable. No explicit WCAG statement, but strong automated score.

Growth

Real problem, clear differentiator (developer-first, flat pricing), but only one product live. Category has headroom, but execution is early.

Improvement areas

Only Address Normalization is live; geocoding and tax calculation are 'coming soon'
Security headers incomplete (no HSTS, CSP, frame protection, DMARC)
Accessibility issues with contrast and accessible names

Design & Usability

GoodVat's landing page is clean and modern, with a live API demo that immediately shows value. The green accent and card styling are consistent, but the 'COMING SOON' labels on two of three products make the offering feel incomplete. Navigation is straightforward, and the docs are well-structured with a quickstart that gets developers to a first API call in minutes. The pricing page is refreshingly simple: $5/month flat for Address Normalization, no metering games. However, the dense footer and multiple resource links add noise. Overall, a solid foundation, but the product lineup needs to catch up with the marketing.

Speed & Security

Performance is strong: Lighthouse mobile 89/100 with a 3.1s LCP and zero CLS, desktop perfect 100. The site feels snappy, and the API's claimed 10ms p99 latency is ambitious but plausible for a stateless service. Security is more concerning: HTTPS is enforced, but missing HSTS, CSP, and frame protection headers leave room for improvement. No SOC 2 or ISO reports are published, which is a gap for a tax API handling sensitive data. The security checklist score of 5/12 reflects this. For a product targeting developers and e-commerce platforms, these gaps could be a dealbreaker for larger customers.

Accessibility & Growth

Accessibility is a bright spot: Lighthouse 97/100, with only minor contrast and label issues. The site is keyboard-navigable and includes a skip-to-content link. Growth potential is real — tax compliance is a painful, expensive problem, and GoodVat's developer-first approach with flat pricing is a clear differentiator against Avalara and TaxJar. However, with only Address Normalization live, the company is essentially a one-trick pony right now. The 'coming soon' geocoding and tax calculation products are the real value proposition, but until they ship, GoodVat is just an address cleaner. The category has headroom, but execution is early.

Conclusion

GoodVat has the right idea and a solid start. If they ship the geocoding and tax calculation APIs with the same quality as the address normalization, they could be a real contender. For now, it's a great tool for address normalization, but the full vision is still on the horizon. Worth watching, and worth trying if you need a simple, affordable address API.

Suggestions for improvement

Ship the geocoding and tax calculation APIs sooner rather than later — the 'coming soon' labels are a credibility killer.
Add HSTS, CSP, and frame protection headers, and publish a SOC 2 report to build trust with enterprise customers.
Fix the contrast and accessible-name issues flagged by Lighthouse to achieve a perfect accessibility score.
Simplify the footer and reduce the number of resource links to reduce visual noise.

How we score

Alternatives comparison

Named competitors, point by point. Nobody paid to appear here or to be left out.

	GoodVat	Avalara	TaxJar	Vertex
Pricing model	Flat $5/month for Address Normalization, unlimited requests	Tiered pricing, often expensive for small businesses	Subscription-based, popular with Shopify but lacks developer API for geocoding	Enterprise pricing, high implementation cost
Developer API	REST API for address normalization, geocoding, and tax calculation (latter two coming soon)	Comprehensive APIs but complex to integrate	API available but not focused on geocoding/address normalization	Enterprise APIs, heavy implementation
Target customer	Small to medium online sellers, developers, e-commerce platforms	Mid to large enterprises	Small to medium online sellers, especially Shopify users	Large enterprises with complex tax needs