HELP! How to determine Deferred tax liability?

to figure deferred income tax you do this. For 2023 take 1.6 million under installment method and subtract the 600,000 under accrual, you have 1,000,000 favorable deferral of income, 30% tax rate means deferred taxes of $300,000. For 2024, take 2.6 and subtract 1.4, with 1.2 million of deferral of income (I am uming 2023 reversed itself for 2024). deferred taxes should be $360,000.