MossGuard

Monitor EU sales thresholds to stay MOSS-compliant—or skip filing entirely.

Score: 7.9/10SSEasy BuildReady to Spawn
Brand Colors

The Opportunity

Problem

Small business owners pay for expensive accounting software that fails to properly handle EU VAT MOSS regulatory reporting for low-volume sellers.

Solution

MossGuard watches your sales across EU countries, alerting you before hitting MOSS thresholds so you avoid registration. If needed, generate simple reports from integrated data. Risk-free for ultra-low volume sellers testing EU waters.

Target Audience

Small business owners who are low-volume sellers requiring EU VAT MOSS compliance

Differentiator

Threshold-first monitoring prevents unnecessary MOSS entry, unlike report-only tools.

Brand Voice

supportive

Features

Threshold Tracker

must-have15h

Per-country sales monitor vs €10k limits.

Risk Alerts Dashboard

must-have12h

Visual gauges + email/push notifications.

Simple Report Builder

must-have18h

Fallback MOSS XML if thresholds hit.

Data Import Options

must-have10h

CSV or Google Sheets sync.

Compliance Checklist

must-have8h

Step-by-step MOSS setup guide.

Historical Trends

nice-to-have10h

Sales growth charts.

Team Sharing

nice-to-have6h

Invite accountant.

What-If Simulator

nice-to-have12h

Project future thresholds.

Total Build Time: 91 hours

Database Schema

users

ColumnTypeNullable
iduuidNo
emailtextNo

thresholds

ColumnTypeNullable
iduuidNo
user_iduuidNo
countrytextNo
current_salesintNo
threshold_limitintNo
updated_attimestampNo

Relationships:

  • user_id references users(id)

alerts

ColumnTypeNullable
iduuidNo
user_iduuidNo
threshold_iduuidNo
messagetextNo
sent_attimestampNo

Relationships:

  • user_id references users(id)
  • threshold_id references thresholds(id)

API Endpoints

POST
/api/import-data

Update sales thresholds

🔒 Auth Required
GET
/api/check-thresholds

Risk status overview

🔒 Auth Required
POST
/api/send-alert

Trigger notifications

🔒 Auth Required

Tech Stack

Frontend
Next.js 14 + Tailwind + Shadcn/UI + Recharts
Backend
Supabase Edge
Database
Supabase Postgres
Auth
Supabase Auth
Payments
Stripe
Hosting
Vercel
Additional Tools
Google Sheets APICron jobs via Vercel

Build Timeline

Week 1: Core tracking

20h
  • DB
  • Import parser

Week 2: Dashboard visuals

20h
  • Charts
  • Gauges

Week 3: Alerts system

20h
  • Emails
  • Push

Week 4: Reports + payments

20h
  • XML fallback
  • Stripe

Week 5: Guides and test

15h
  • Checklist UI
  • Deploy
Total Timeline: 5 weeks • 110 hours

Pricing Tiers

Free

$0/mo

Basic alerts

  • Track 3 countries

Pro

$29/mo
  • Unlimited countries
  • Advanced alerts
  • Reports

Enterprise

$89/mo
  • Team access
  • Sheets sync
  • Simulator

Revenue Projections

MonthUsersConversionMRRARR
Month 1703%$61$732
Month 67007%$1,444$17,328

Unit Economics

$20
CAC
$320
LTV
6%
Churn
87%
Margin
LTV:CAC Ratio: 16.0xExcellent!

Landing Page Copy

Guard Against EU VAT MOSS Surprises

Track sales thresholds, get alerts, report only if needed—stay safe.

Feature Highlights

Threshold dashboards
Smart alerts
Easy imports
Built-in guides

Social Proof (Placeholders)

"'Avoided MOSS signup!' - Tom, Tester"
"'Peace of mind for EU launches.' - Emma, Indie"

First Three Customers

Share free threshold checker tool on Twitter #ecom and LinkedIn 'EU Sellers' groups. Cold email 20 Shopify app users from app store reviews complaining about VAT. Beta via Product Hunt coming soon page signups.

Launch Channels

Product Huntr/shopifyTwitter #ecommerceLinkedIn

SEO Keywords

eu vat moss threshold monitoravoid moss vat registrationeu sales threshold trackermoss compliance checker

Competitive Analysis

Enterprise $100s/mo
Strength

Global coverage

Weakness

No low-volume threshold focus

Our Advantage

Preventive monitoring at $29

🏰 Moat Strategy

Aggregated anonymous threshold data for benchmarks.

⏰ Why Now?

EU lowering digital sales oversight amid inflation; more cautious expansions.

Risks & Mitigation

executionlow severity

Low adoption if pain understated

Mitigation

Free tier + education

financialmedium severity

Slow ramp due to seasonal quarters

Mitigation

Q1 launch timing

Validation Roadmap

pre-build10 days

Landing page + waitlist

Success: 50 signups

launch30 days

PH feedback loop

Success: 10% conv to paid

Pivot Options

  • General threshold tools for taxes
  • Shopify VAT app

Quick Stats

Build Time
110h
Target MRR (6 mo)
$4,000
Market Size
$400.0M
Features
8
Database Tables
3
API Endpoints
3