The rates available include a two-year fixed rate deal at 4.49% with a £995 at 75% LTV and a two-year fixed deal with the same fee at 4.29% at 60% LTV.
Abbey has also introduced an LTV of 85% for core and homebuyer business. A three-year fixed rate deal is available at 5.84% with a £995 fee.
For its two-year trackers, products include a rate of 4.29% with a £995 fee for 60% LTV and also a 3.99% with a £1,995 fee for 60% LTV.
Both the fixed rate and tracker changes are with effect from Wednesday December 10.
Nici Audhlam-Gardiner, mortgage director at Abbey, says: “This year Abbey has written one in four mortgages. This demonstrates we have been and continue to be open for business.
“This is the first time since 2004 that we have offered rates at levels below 4%.”