Asset disposal

Hi,

Please can you help me with a question.

If a company buys machinery for £2m this year and has a legislation to dispose of it in 10 years. The item has a £500,000 dismantling cost and a 10% discount.

I understand the disposal does not need to be recorded until the asset has actually been disposed of. So i would need to value the dismantling cost at present value and unwind the discount.

Pv = £193,000 calc= (1/1.1^10) * £500,000

Year 1: Pv = £193,000
10% finance cost = £19,300
C/f = £213,300

This would be done for 10 years.

Is this correct? My confusion is how would i account for the above in this years financial statement.

Thank you