Instant EU VAT MOSS reports for low-volume sellers—no accounting degree required.
Small business owners pay for expensive accounting software that fails to properly handle EU VAT MOSS regulatory reporting for low-volume sellers.
Upload your sales CSV from Stripe or PayPal, and MossMate auto-categorizes sales by EU country, calculates VAT OSS liabilities, and generates ready-to-file XML reports. Quarterly reminders ensure you never miss deadlines, saving hours on manual spreadsheets. Perfect for solopreneurs avoiding pricey full-suite accounting tools.
Small business owners who are low-volume sellers requiring EU VAT MOSS compliance
Dead-simple CSV upload to compliant XML in seconds, tailored exclusively for low-volume MOSS filers under €10k thresholds.
friendly
Securely upload sales data; auto-parses country, amount, VAT rates.
One-click generates EU VAT OSS XML/CSV for quarterly filing.
Track past submissions with download links and audit trail.
Email alerts for MOSS deadlines based on your fiscal year.
Built-in up-to-date EU country VAT rates with auto-updates.
Handles EUR, USD, GBP conversions using real-time rates.
Live preview before generating final file.
Sales breakdown by country pie chart.
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| text | No | |
| vat_id | text | Yes |
| fiscal_year_start | timestamp | No |
| created_at | timestamp | No |
| Column | Type | Nullable |
|---|---|---|
| id | No | |
| user_id | uuid | No |
| quarter | text | No |
| xml_content | text | No |
| generated_at | timestamp | No |
Relationships:
| Column | Type | Nullable |
|---|---|---|
| id | uuid | No |
| user_id | uuid | No |
| report_id | uuid | Yes |
| csv_data | text | No |
| parsed_json | text | No |
| uploaded_at | timestamp | No |
Relationships:
/api/upload-salesParse and store CSV sales data
/api/generate-reportCreate MOSS XML from uploaded sales
/api/reportsList user's report history
/api/vat-ratesFetch current EU VAT rates
No history, no reminders
1 business
5 businesses
| Month | Users | Conversion | MRR | ARR |
|---|---|---|---|---|
| Month 1 | 50 | 4% | $58 | $696 |
| Month 6 | 500 | 8% | $1,160 | $13,920 |
Ditch expensive accounting software. Upload sales CSV, get compliant XML—done.
Post in Facebook groups like 'EU VAT for Digital Sellers' and 'Stripe Users EU' offering free lifetime Pro access for feedback. DM 10 low-volume Gumroad/Stripe sellers from Twitter searches for 'VAT MOSS headache'. Run $50 Reddit ads targeting r/ecommerce with free report generator demo.
Full invoicing integration
Overkill and expensive for low-volume
MOSS-only, flat $29 unlimited
Proprietary EU VAT rate updater + user data for benchmarking reports.
Boom in digital products post-COVID; stricter EU enforcement on non-compliant sellers.
Incorrect VAT calculations leading to liability
Clear disclaimers + manual review option; use official rate APIs
Low awareness of MOSS pain
Educational content on landing page
Success: 3+ confirm willingness to pay $30/mo
Success: 100% report accuracy validated
Other validated startup ideas you might find interesting
AI-powered feedback prioritization for solo SaaS founders
Customer-voted roadmaps that solo founders can launch in minutes
Automate feedback loops into tasks for solo SaaS builders
Seamless club leadership transitions that keep your marketing alive beyond graduation
University-wide club networks that survive graduations with built-in alumni pipelines
Turn college clubs into lifelong brands with AI handover and sponsor matching