Filabl: File IRS Form 5472 in minutes, we fax it for you

Hey PH! Danna here. This started as an internal tool at our accounting practice. We kept seeing the same thing, foreign founders with US LLCs paying $500+ just to file two forms with the IRS. The forms themselves are simple, but nobody tells you they exist until the IRS sends you a $25,000 penalty letter. So we turned our internal workflow into Filabl. You answer a few questions, upload your bank statements, and Filabl fills out Form 5472 + pro forma 1120 and faxes everything to the IRS. Some things I'm proud of: - Built with Next.js + Django, running on a single Hetzner VPS - We fax at 300 DPI (the IRS rejects lower quality) - Supports late filings back to 2019 with automatic reasonable cause letters - Already helped founders from 20+ countries file I'd love to hear, has anyone here dealt with this form before? And for those who've built tools in regulated/tax spaces: how do you handle the trust factor with new users?