[m1bjr]

So three years and almost 75k along, the 318dES E90 is due for a change of owner.

It's been 100% reliable, and long term combined average consumption sits just under 60mpg over the last year.
Not bad - a little boring and underspec this one - but no complaints really.

My employer is offering £450pcm if I take another fully expenses company vehicle.
Or they will give me £550pcm if I opt out and take an allowance to buy my own.

There is still the option to 'top up' the company car rate, but a caveat now exists where I would be liable for the remaining difference
if I leave this employ before the company car lease is up.
A new lease is a stagering 100k/4years only for me now.
A long time to be in the same car.

So, never having 'opted out' before, how complex does it get with tax?
I mean right now its simple, P11d and tell the tax man and its sorted with no tax returns or any other nonsense to bother with.
How does it work if I take the allowance?

And given the measily £100pcm difference, is it actually worth the risk/hassle?

In both cases I pay diesel and claim back at flat rate of 17ppm currently for a 2.0l diesel (a little over guideline for a specific reason)

Opinions from those with experience are most welcome!

Steve