PrompTax - Stocks and Options CGT tool
AI-powered UK Capital Gains Tax software for accountants
Details
- External ID
- 1243220
- Source
- PH
- Company
- —
- Product
- PrompTax - Stocks and Options CGT tool
- Website domain
- producthunt.com
- Launched
- Sept. 7, 2026
- Cohort
- —
- Upvotes
- 1
- Upvotes percentile
- 0.30815693820825313
- Tags
- Fintech, SaaS, Artificial Intelligence
- Fetched at
- Sept. 7, 2026, 8:52 p.m.
- Updated at
- Sept. 7, 2026, 8:52 p.m.
Description
PrompTax turns messy broker statements into HMRC-ready Capital Gains Tax reports. Upload multi-broker, multi-currency PDFs or CSVs — AI extracts every trade so you verify the output, not retype it into a spreadsheet. Then it applies the full HMRC waterfall — Same-Day, 30-Day Bed & Breakfast (cross-year aware), Section 104 pooling — plus equity options rules (S144/S148) most CGT tools can't touch. Out comes an SA108-ready PDF with a full audit trail and SHA-256 tamper-evident verification.
Enrichment
- Theme
- financial intelligence and trading tools
- Vertical
- Fintech
- Function
- Vertical SaaS
- Audience
- B2B
- AI stance
- AI feature
- Project type
- Commercial product
- Normalized one-liner
- capital gains tax software for uk accountants
- Manually corrected
- False
Could you build this?
Partial Extracting trade data with vision/document models and providing a tax UI is vibe-codeable, but implementing the exact UK HMRC capital gains waterfall (Same-Day, 30-Day Bed & Breakfast, Section 104 holdings) with multi-currency conversions across cross-year options and corporate actions requires complex financial/tax accounting validation.
What it would actually take: The system requires an OCR/LLM document parsing pipeline backed by strict schema validation (Pydantic/Zod), combined with a deterministic accounting rules engine in Python or TypeScript that implements HMRC Capital Gains Tax manual rules (TCGA 1992 rules for share matching, FX historical rate tables, wash sales). Deep domain knowledge of UK tax law and financial audit testing is needed to ensure legally binding accuracy.
Competitors
Other products that read as similar to this one — 61 launches clear the similarity bar, closest 8 shown.
Attention rank: #21 of 62 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 299 days after the earliest competitor.
- FillStub · ph · 2026-09-14 · 1 upvotes · similarity 0.44
- DocuFlow · ph · 2026-09-10 · 1 upvotes · similarity 0.43
- Options Workspace · ph · 2026-09-18 · 1 upvotes · similarity 0.42
- MTD Invoice Extractor · ph · 2026-09-15 · 1 upvotes · similarity 0.41
- cryptact · ph · 2026-09-09 · 1 upvotes · similarity 0.39
- Calcivo · ph · 2026-09-25 · 1 upvotes · similarity 0.39
- NeuralFlex · ph · 2026-09-27 · 2 upvotes · similarity 0.37
- EstateLedger · ph · 2026-09-15 · 1 upvotes · similarity 0.37
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a vertical saas tool for Insurance yet.