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PrompTax - Stocks and Options CGT tool

AI-powered UK Capital Gains Tax software for accountants

Fintech
SaaS
Artificial Intelligence
Visit WebsiteSee on Product HuntTwitter

Hunted byJames ReadJames Read

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.

Top comment

Hey everyone — I'm the builder behind PrompTax. I built this because every UK accountant I spoke to was still doing Capital Gains Tax by hand in spreadsheets. HMRC's same-day, 30-day bed & breakfast, and Section 104 pooling rules are brutal to apply correctly at volume, and one missed cross-year 30-day match can silently corrupt a client's pool for years. PrompTax reads broker PDFs/CSVs with AI, has you verify the extracted trades, then applies every HMRC matching rule automatically — including options (S144/S148), which most CGT tools don't even attempt. It outputs an SA108-ready PDF with a full audit trail, cryptographically hashed so it's tamper-evident. It's in free private beta for UK accounting practices right now, no card required. I'd love feedback from anyone who deals with CGT professionally — or anyone who just wants to poke holes in it. Ask me anything below!

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About PrompTax - Stocks and Options CGT tool on Product Hunt

AI-powered UK Capital Gains Tax software for accountants

PrompTax - Stocks and Options CGT tool was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #67 on the daily leaderboard. 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.

PrompTax - Stocks and Options CGT tool was featured in Fintech (47.5k followers), SaaS (44.1k followers) and Artificial Intelligence (478.1k followers) on Product Hunt. Together, these topics include over 194.8k products, making this a competitive space to launch in.

Who hunted PrompTax - Stocks and Options CGT tool?

PrompTax - Stocks and Options CGT tool was hunted by James Read. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.

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