battles / Tax
SimplyVAT vs Sovos
SimplyVAT ($350/mo/mo, vibe code 3/10) vs Sovos ($1,500/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
$1,500/mo/mo
- MVP
- 1 week
- Full replacement
- Indefinite — rate maintenance, legal liability, and government filing integrations cannot be replicated with custom code.
price gap / year
$13,800/mo
running both / year
$22,200/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
Sovos
Sovos is not software you buy for its UI; you pay for tax liability offloading, maintained rate tables, and automated regulatory filings across tens of thousands of global tax authorities. While writing code to multiply subtotal by a tax rate is trivial, maintaining real-time tax law compliance across changing municipal boundaries is impossible for a single engineering team. Custom implementations leave your business exposed to severe tax audit penalties and personal liability.
you can rebuild
- Basic percentage-based sales tax calculation API
- Exemption certificate file storage dashboard
- Simple order tax breakdown reporting for admin UI
- Static ZIP code to tax rate lookup table
- CSV transaction exporter for manual CPA review
what you lose
- Real-time updated rate tables across 10,000+ US jurisdictions and global VAT/GST rules
- Direct automated tax return generation and remittance filing to state and federal agencies
- Government-mandated Continuous Transaction Controls (CTC) and e-invoicing framework compliance
- Address geocoding down to latitude/longitude for composite tax district boundaries
- Audit liability protection and direct enterprise compliance guarantees
real moats
- Regulatory compliance integrations with tax authorities worldwide
- Proprietary geospatial tax boundary maps updated dynamically as laws change
- Financial liability coverage and legal indemnification for calculation errors
open source escape hatches
- Valvat MIT
- Shopware Tax System MIT
- Sylius Taxator MIT
Questions people ask
Which is easier to rebuild with AI, SimplyVAT or Sovos?
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 Sovos?
SimplyVAT at $350/mo/mo for a typical mid-market store. The gap between the two is about $13,800/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 Sovos?
Real-time updated rate tables across 10,000+ US jurisdictions and global VAT/GST rules Direct automated tax return generation and remittance filing to state and federal agencies Government-mandated Continuous Transaction Controls (CTC) and e-invoicing framework compliance
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