Automatic HMRC Section 104 pooling, Capital Equalisation Adjustments, and CGT figures for every member — without a spreadsheet in sight.
The only modern browser-based investment club platform built specifically for UK clubs.
Free to start. No credit card required.
HMRC's rules for investment clubs are genuinely complex. Most software either ignores UK tax law entirely or ships a Windows desktop app from 2005. HWSW was built from the ground up to handle it properly.
❌ Calculating each member's gain share is a spreadsheet nightmare
HWSW calculates every member's Capital Gains automatically on every transaction — using HMRC Section 104 pooling rules with same-day and 30-day matching.
❌ New members joining mid-year cause chaos with historic gains
Capital Equalisation Adjustments are calculated automatically on the day a new member joins, so they never benefit from — or get penalised by — gains they didn't earn.
❌ Preparing each member's tax figures takes all weekend
Every member gets their own tax year summary with HMRC-ready CGT figures, income allocations, and Form 185-ready data — generated in seconds.
❌ No way to see the whole portfolio at a glance
Live portfolio dashboard with individual holdings, NAV per unit, member ownership percentages, and unrealised gain/loss — updated in real time.
Tax compliance, portfolio tracking, member management, and AI insights — in one platform.
HMRC Section 104 pooling — same-day and 30-day matching applied automatically
Capital Equalisation Adjustments on every new member joining
CGT figures per member per tax year — ready for self-assessment
Form 185 club income and gains summary
FIFO, LIFO, and Average Cost methods supported
Withdrawal liability calculation before a member exits
Bank and broker statement import via AI
Real-time NAV per unit and portfolio valuation
Member portal — each member sees their own holdings and gains
AI-powered stock analysis with five specialist analyst personas
Gamified watchlist with voting and governance tools
Digital wallet and multisig safe tracking for crypto clubs
iValuation has been the default UK club software for years. But it's a Windows desktop app that hasn't kept up with how clubs work today.
HMRC requires investment clubs to use Section 104 pooling to calculate the cost basis of shares they sell. Under this method, all purchases of a particular share are pooled together, and gains are calculated using a weighted average cost across the entire pool.
Before consulting the Section 104 pool, HMRC applies two matching rules in order:
For investment clubs with multiple members joining at different times, this creates an additional complication: gains need to be allocated fairly between members based on how long they've been invested and how much they've contributed. This is where Capital Equalisation Adjustments come in.
HWSW handles all of this automatically — every transaction, every member, every tax year.
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