The Home Office have published information on the proposed visa fee increases from April 2015.
Please be aware that if your Tier 4 visa is due to expire after 5 April 2015, the new fee you will have to pay from 6 April 2015 will be £439 instead of £422.
The following application fees are also increasing:
Tier 1 Graduate entrepreneur will increase from £422 to £456;
Tier 2 General will increase from £601 to £651;
BRP replacement will increase from £40 to £45;
Transfer of Conditions will increase from £107 to £183