Scale property income targets to match HMRC rental stats#311
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nikhilwoodruff merged 1 commit intomainfrom Mar 20, 2026
Merged
Scale property income targets to match HMRC rental stats#311nikhilwoodruff merged 1 commit intomainfrom
nikhilwoodruff merged 1 commit intomainfrom
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…le-counting Two issues fixed: 1. Property income targets from SPI (~£27bn) only cover taxpayers with liability. HMRC Property Rental Income Statistics show ~£47bn (1.9x higher) as they include all ITSA landlords. Apply 1.9x scaling factor. 2. incomes_projection.csv contains aggregate rows (12570,inf) alongside per-band rows, causing double-counting in projected years (2024+). Filter these out. Before: 2023=£27bn, 2025=£70bn (double-counted) After: 2023=£52bn, 2025=£66bn (correct) Closes #230 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
incomes_projection.csvcontains aggregate rows (12570,inf) alongside per-band rows, inflating projected year targets by 2xSources:
Closes #230
Test plan
test_property_income_targets_scaled— total is £45-60bn for base yeartest_no_aggregate_row_double_counting— no12_570_to_inftargets in projected yearstest_projected_property_income_reasonable— 2025 total is £50-90bn🤖 Generated with Claude Code