90% of AGI flows to a non-grantor Summit Trust; 100% of trust receipts are allocated to principal (§643(b)). Trust pays “normal living”; other family expenses are distributions (taxed to MFJ). If a capital gain occurs, 90% is allocated to principal and paid out in 20 equal annual installments starting in the sale year; LTCG tax is paid upon each installment. Totals include the value remaining in the trust.