battles / Tax
Hellotax vs Sibill
Hellotax ($299/mo/mo, vibe code 3/10) vs Sibill ($60/mo/mo, vibe code 3/10). Sibill is the easier one to rebuild yourself — here is what you lose either way.
Tax
$299/mo/mo
- MVP
- 2 weeks
- Full replacement
- 12-24 months, with the reason
Tax
$60/mo/mo
- MVP
- 2 to 3 weeks
- Full replacement
- 6 to 9 months
easier to rebuild
get the build prompt →price gap / year
$2,868/mo
running both / year
$4,308/mo
our call
Start with Sibill — highest vibe code, weakest moat.
Hellotax
Building a script to calculate EU VAT and track the €10,000 OSS threshold takes a weekend. However, legally filing returns, holding power of attorney, and communicating with national tax offices across 27 EU countries requires humans and regulatory licenses.
you can rebuild
- EU One Stop Shop (OSS) threshold tracking and alerts
- Multi-channel sales transaction aggregation
- Destination-based EU VAT rate calculation per line item
- Customer VIES VAT ID verification
- Formatted tax export generation for accounting software
what you lose
- Certified local EU tax representation and power-of-attorney filing
- Legal indemnification and tax liability guarantees
- Direct electronic filing pipelines into national tax office portals
- Localized handling of tax audits and official government correspondence
- Automatic maintenance of changing EU member state tax rules and exceptions
real moats
- Licensed tax accountant networks across EU member states
- Regulatory authorization to act as a tax representative
- Financial liability and audit defense services
open source escape hatches
- KillBill Apache-2.0
- Medusa Commerce MIT
- Valvat Ruby Gem MIT
Sibill
You can easily build a visual cash flow forecasting engine that parses Italian electronic invoices with AI. However, maintaining licensed Open Banking connections and staying compliant with evolving Italian tax specs makes replacing Sibill long-term painful.
you can rebuild
- Visual cash flow timeline charts and balance projections.
- Fattura Elettronica XML parsing and extraction of payment due dates.
- Manual and rule-based transaction categorization.
- Basic invoice reconciliation with incoming bank transfers.
- Multi-account consolidated view dashboard.
what you lose
- Turnkey integration with Italian Open Banking aggregators via pre-certified AISP channels.
- Automated daily sync with Italian electronic invoice feeds (Agenzia delle Entrate / SDI connectors).
- Pre-configured machine learning models trained to categorize Italian merchant bank descriptions.
- Direct collaboration portal for external Italian accountants (Commercialisti).
- Zero-maintenance handling of PSD2 regulatory token refreshes.
real moats
- AISP regulation barriers and native integrations with Italian Open Banking aggregators.
- Pre-built classification models tuned on millions of messy Italian bank transaction descriptions.
- Workflow lock-in with Italian SMB accounting formats and accountant collaboration networks.
open source escape hatches
- Open Tax Solver / tax rules engines Mixed
- GOBL Apache-2.0
- Invopop Peppol / fatturapa MIT
Questions people ask
Which is easier to rebuild with AI, Hellotax or Sibill?
Sibill. It scores 3/10 on vibe code with a moat of 5/10, so an AI-assisted MVP takes about 2 to 3 weeks and a full replacement about 6 to 9 months.
Which one costs less, Hellotax or Sibill?
Sibill at $60/mo/mo for a typical mid-market store. The gap between the two is about $2,868/mo a year.
What do I lose if I replace Hellotax?
Certified local EU tax representation and power-of-attorney filing Legal indemnification and tax liability guarantees Direct electronic filing pipelines into national tax office portals
What do I lose if I replace Sibill?
Turnkey integration with Italian Open Banking aggregators via pre-certified AISP channels. Automated daily sync with Italian electronic invoice feeds (Agenzia delle Entrate / SDI connectors). Pre-configured machine learning models trained to categorize Italian merchant bank descriptions.
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