Wes Streeting, a Labour leadership contender, has proposed equalizing tax rates on income and capital gains as part of a broader plan for a "wealth tax that works." He argues that the current system, where capital gains tax is significantly lower than income tax, is unfair and penalizes workers. Streeting claims this reform could raise approximately £12 billion annually while making the tax system more progressive . His proposal has been framed as a challenge to Keir Starmer’s leadership, with Streeting positioning himself as a candidate who could address wealth inequality more aggressively .
In contrast, Treasury minister Lucy Rigby has defended the current tax system, stating that wealth is already being taxed appropriately through measures introduced by Chancellor Rachel Reeves in her budgets. Rigby emphasized that existing policies aim to ensure fairness and progressivity in taxation .
In Germany, the SPD has called for a higher "Reichensteuer" (wealth tax) targeting top earners, arguing that those with broader financial capacity should bear a greater tax burden. The proposal has gained traction with the CDU/CSU, though business groups, particularly family-owned enterprises, have expressed concerns, as many pay income tax rather than corporate tax and could face higher liabilities .