Two-year fixed rates have been reduced by up to 0.4% and now start from 3.63%, while five-year fixes are now available from 4.23%.
Pepper's 30-month fixes now start from 3.68%.
Completion fees are also being reduced to £995 for most products.
Rob Barnard, Sales Director of Pepper Homeloans, said: “These cuts to our non-conforming range fixed rates and fees will help hard-pressed homeowners make a move up the housing ladder or remortgage onto a more competitive deal.
“All applications are manually underwritten and we don’t use credit scoring. Brokers can submit DIPs and applications online and they will receive a fast efficient service.”