Re-Mortgaging as a contractor

[M777CUS]

i am currently employed and have a mortgage with halifax, 2 year fixed term. the fixed term is up early 2015. it is very likely though that in the next 3/4 months ill go from being fully employed to self employed (my own limited company).

how difficult would it be to remortgage? i would guess at the time of wanting to re-mortgage i would have a years worth of accounts.

thanks in advance.