Timing of Tax relief (NPV) Kaplan revision kit ques no 58

Dear Sir,
I cannot understand how the timing of 1st tax relief is Time 1 and not time 2 for the following question.
“A company has 31 December as its accounting year end. On 1 january 20X5 a new machine consting 2,000,000 is purchased. The company expects to sell the machine on 31 December 20X6 for 350,000.
Corporation tax is 30%. Tax-allowable depreciation is 25% reducing balance, and a balancing allowance is available on disposal of the asset. The company makes sufficient profits to obtain relief for tax-allowable depreciation as soon as they arise.
If the company’s cost of capital is 15% per annum, what is the present value of the tax-allowable depreciation at 1 january 20X5?”
thank you.