Thailand's Finance Ministry is revising the TISA (Tax-Incentivized Savings Account) program, reducing the annual tax deduction ceiling from 800,000 baht to 600,000 baht and eliminating the income-tiered multiplier system (1.3x for earners below 1.5M baht; 0.7x for those above). The goal is to redirect capital flows from savings accounts to capital markets (stocks, bonds, mutual funds) while simplifying administration, though economists debate whether the flat structure fairly balances incentives between middle-income and high-income earners. Decision expected before September 2026.