2012 £m	2011 £m
Interest on bank overdrafts and loans*	0.5	1.1
Interest on obligations under finance leases	–	0.1
Total interest expense	0.5	1.2
Interest on pension scheme liabilities	4.7	5.1
Return on pension assets	(3.5)	(4.4)
Other finance charges*	2.1	2.9
Total finance costs	3.8	4.8

* Amounts arising on financial liabilities measured at amortised cost.