For firms preparing under IFRS, the new leasing standard (IFRS16) will apply for periods commencing on or after 1 January 2019.

IFRS16 will have a significant impact for professional firms, particularly those with long term property leases, as it will require all operating lease liabilities to be brought onto balance sheets. 

It is important that firms consider the impact early, particularly if the increase in liabilities impact the ability to raise further finance or breach current lending covenants.

I am happy to discuss if you need further information or please read a good summary here.