battles / Tax
SimplyVAT vs Zonos
SimplyVAT ($350/mo/mo, vibe code 3/10) vs Zonos ($500/mo/mo, vibe code 3/10). SimplyVAT is the easier one to rebuild yourself — here is what you lose either way.
Tax
$350/mo/mo
- MVP
- 1 week
- Full replacement
- Never (requires certified tax agency status, legal power of attorney, and regulatory standing)
easier to rebuild
get the build prompt →Tax
$500/mo/mo
- MVP
- 2 weeks
- Full replacement
- Never, due to continuous global tariff law updates, local de minimis changes, and legal tax remittance liability
price gap / year
$1,800/mo
running both / year
$10,200/mo
our call
Start with SimplyVAT — highest vibe code, weakest moat.
SimplyVAT
SimplyVAT is a managed regulatory compliance provider backed by licensed human tax professionals. While writing a script to compute EU distance selling thresholds is simple, submitting legally binding tax filings to foreign government portals and taking on legal liability cannot be replaced with code.
you can rebuild
- Sales transaction ingestion across Shopify, WooCommerce, and Amazon
- Distance selling threshold monitoring per EU member state
- Daily currency conversion using European Central Bank exchange rates
- B2C sales breakdown generation for EU One-Stop Shop (OSS) filings
- Exporting formatted audit files (SAF-T / CSV) for accounting handoffs
what you lose
- Official legal fiscal representation in foreign jurisdictions
- Direct electronic submission of returns into foreign tax office portals
- Professional indemnity insurance covering tax calculation and filing errors
- Dedicated human tax experts to resolve audits and legal queries
- Continuous monitoring of shifting regional VAT legislation and rate changes
real moats
- Licensed tax agent accreditation across EU and UK jurisdictions
- Legal power of attorney and liability absorption for filings
- Established communication channels and workflows with local government tax offices
Zonos
Zonos is fundamentally a regulatory data product combined with financial risk underwriting. While rendering an estimated duty at checkout is trivial, maintaining real-time global HS code schedules, de minimis rule changes across 200+ countries, and absorbing customs underpayment risk cannot be automated with LLMs.
you can rebuild
- Checkout widget UI displaying calculated import duty and tax line items
- Basic multi-currency display and real-time exchange rate conversion
- LLM-assisted initial 6-digit Harmonized System (HS) code tagging on store SKUs
- Estimation of baseline regional VAT/GST percentages
- Merchant dashboard showing cross-border sales volume by country
real moats
- Maintained database of global 6-to-10 digit HS codes, trade agreements, and regional de minimis rules across 200+ jurisdictions
- Financial liability assumption (Duty Guarantee) protecting merchants from unexpected customs fees
- Global tax registration and remittance infrastructure (e.g. EU IOSS, UK VAT, AU GST)
open source escape hatches
- Commerce Guys EU VAT MIT
- Swap MIT
- TaxJar Node API Client MIT
Questions people ask
Which is easier to rebuild with AI, SimplyVAT or Zonos?
SimplyVAT. It scores 3/10 on vibe code with a moat of 5/10, so an AI-assisted MVP takes about 1 week and a full replacement about Never (requires certified tax agency status, legal power of attorney, and regulatory standing).
Which one costs less, SimplyVAT or Zonos?
SimplyVAT at $350/mo/mo for a typical mid-market store. The gap between the two is about $1,800/mo a year.
What do I lose if I replace SimplyVAT?
Official legal fiscal representation in foreign jurisdictions Direct electronic submission of returns into foreign tax office portals Professional indemnity insurance covering tax calculation and filing errors
What do I lose if I replace Zonos?
Zonos keeps its vendor support and integration ecosystem.
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