battles / Tax
Complyt vs EAS Project
Complyt ($249/mo/mo, vibe code 3/10) vs EAS Project ($99/mo/mo, vibe code 3/10). Complyt is the easier one to rebuild yourself — here is what you lose either way.
Tax
$249/mo/mo
- MVP
- 1 week
- Full replacement
- 9-12 months, due to state tax rate tables, product exemptions, and filing integrations
easier to rebuild
get the build prompt →Tax
$99/mo/mo
- MVP
- 1 week
- Full replacement
- Never (Not Feasible)
price gap / year
$1,800/mo
running both / year
$4,176/mo
our call
Start with Complyt — highest vibe code, weakest moat.
Complyt
Building a script to count state sales volume against static nexus thresholds takes a few hours. However, maintaining updated rate databases across 12,000+ local tax jurisdictions, product taxability codes, and state-level legal liability makes DIY code a massive financial risk.
you can rebuild
- State sales volume and order count aggregation per state
- Economic nexus progress bars and threshold warning alerts
- Shopify REST/GraphQL webhook order sync and historical sync
- Basic email alerts when reaching state threshold milestones
- State registration status tracking and internal notes dashboard
what you lose
- Automated dynamic tax rate calculations across 12,000+ US jurisdictions
- Product category taxability matrices and exemption rule engine
- State tax audit indemnification and professional CPA oversight
- Direct electronic tax return filing to individual state tax portals
- Physical nexus tracking tied to remote employees and 3PL fulfillment locations
real moats
- Continuous maintenance of state and local tax rate boundary tables
- Legal indemnification for calculation errors during state tax audits
- Direct API integrations and filing workflows for state tax department portals
open source escape hatches
EAS Project
Coding a math formula that adds 21% VAT to a cart takes 10 minutes. However, EAS acts as a registered EU fiscal intermediary, filing legal monthly returns and assuming liability across 27 EU member states. AI cannot write code that replaces legal standing with tax authorities.
you can rebuild
- Destination-based EU VAT calculation engine at checkout
- VIES database API lookup for B2B VAT number validation
- Automated HS code matching rule builder based on SKU attributes
- Commercial invoice data formatting for logistics carriers
- Basic order export reporting grouped by EU country
what you lose
- Official EU IOSS fiscal representation and legal registration
- Automated tax filing and remittance to EU member state tax offices
- Customs clearance guarantees and liability protection for incorrect duty collection
- Real-time maintenance of national VAT rate changes and reduced-rate exemptions across 27 countries
- Direct carrier integration for automated digital customs declarations (CN22/CN23)
real moats
- EU Fiscal Representative legal status required for non-EU sellers
- Direct operational interface with EU member state tax authority filing systems
- Legal risk absorption and tax audit indemnity
open source escape hatches
- valvat MIT
- commerce_vat GPL-2.0
- vat-calculator MIT
Questions people ask
Which is easier to rebuild with AI, Complyt or EAS Project?
Complyt. 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 9-12 months, due to state tax rate tables, product exemptions, and filing integrations.
Which one costs less, Complyt or EAS Project?
EAS Project at $99/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 Complyt?
Automated dynamic tax rate calculations across 12,000+ US jurisdictions Product category taxability matrices and exemption rule engine State tax audit indemnification and professional CPA oversight
What do I lose if I replace EAS Project?
Official EU IOSS fiscal representation and legal registration Automated tax filing and remittance to EU member state tax offices Customs clearance guarantees and liability protection for incorrect duty collection
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