Built for UK investors, options traders, and multi-broker portfolios

Trade actively.
Report calmly.

ClearStrike helps UK investors turn messy broker exports, option assignments, dividends, and share disposals into clean tax-ready insight.

$ clearstrike import ibkr-activity.csv

-> Reading broker activity...

-> Matched 184 trades, 12 option events, 9 dividends

-> Applying HMRC matching rules OK

-> Estimated taxable gain GBP 11,314.42

OK Report ready at /tax-reports/2025-26

Works with broker exports, spreadsheets, and tax records

Workflow

ClearStrike gives active investors one place to import, reconcile, and understand taxable activity before filing.

Broker Imports

Bring in CSV activity from your brokers and normalize trades, fees, dividends, corporate actions, and cash movements.

Options Tracking

Link premiums, buy-to-close events, exercises, and assignments so option activity lands in the right tax treatment.

HMRC Matching

Apply same-day, 30-day, and Section 104 pool rules consistently across equities, ETFs, and repeated trades.

Dividend Income

Separate UK and overseas dividends, track withholding tax, and keep income totals visible throughout the tax year.

Holdings Snapshot

See positions, pooled costs, unrealised gains, and cash balances without stitching together broker screens.

Tax Reports

Produce clear summaries for gains, losses, allowances, dividends, and review items before Self Assessment.

Clarity

Keep the important numbers close: realised gains, open review items, dividend income, and the rules applied to each disposal.

HMRC matching rules

2025/26

Tax year ready

CSV

Broker import format

GBP

Reporting currency

Start with an import, review the matched trades, and turn the year into a report you can actually reason about.