Cycle to work scheme

And of course in reality, your employer is going to levy a charge, reducing the savings even more...
Most employers appear to outsource this to Bikescheme / Cyclescheme or other scheme providers, who in turn charge the retailer (who may choose to pass this on or just not offer discounts).

If an employer is conscientious enough to self-administer a c2w scheme, it seems unlikely they will charge for it.

^And what Mirius says about VAT.