Yes and no. The £45 billion a year figure is how much the tax cuts will supposedly cost in some future tax year - 2025/6 or 2026/7 or sometime around then, well

Yes and no. The £45 billion a year figure is how much the tax cuts will supposedly cost in some future tax year - 2025/6 or 2026/7 or sometime around then, well after the next general election. Also, I'm pretty sure most of that is from foregone tax increases that would've happened under the previous plans - both a direct increase in corporation tax planned for 2023 originally and a bunch of people moving into higher income tax bands through inflation decreasing the real value of the income tax thresholds. Of course, because those figures are in 2026 or whatever pounds and the cost of the energy subsidies are incurred much earlier than that, you also can't directly compare them because of inflation.