Validate EU VAT IDs and automate VAT handling for Stripe subscriptions

Validate EU VAT IDs and automate VAT handling for Stripe subscriptions targets a $1.8B = 600K businesses × $3K ACV total addressable market with medium saturation and a year-over-year growth rate of 10% YoY — driven by EU cross-border e-commerce growth and rising subscription monetization (Eurostat, industry reports).

Key trends driving demand: Subscription economy expansion — more businesses use recurring billing, increasing the need for subscription-aware tax tooling.; Regulatory complexity rising — OSS and cross-border VAT guidance changes create recurring compliance work that merchants prefer to automate.; Stripe platform growth — as Stripe expands its Billing and marketplace features, there's strong demand for first-class integrations tailored to Stripe workflows.; SMB cost-sensitivity — many SMBs are willing to pay for focused, affordable tax automation rather than full enterprise platforms if integration is seamless..