"We recognise that some customers keen to take the second step on the property ladder can find it difficult."
New high-LTV rates include a two-year fix at 80% LTV from 1.64%.
Five-year fixed rates start from 2.44% at 80% LTV, 2.54% at 85% LTV and 3.14% at 90% LTV.
Santander has also launched new fixed rate products exclusively for selected Key Accounts within the intermediary market.
Products include a two-year fixed rate at 75% LTV from 1.39% and a 2.34% 90% LTV.
Large loan rates start from 1.74% at 70% LTV fixed for two years.
Five year fixed rates are available at 2.09% up to 60% LTV and 2.29% at 70% LTV.
Miguel Sard, Managing Director of Mortgages at Santander, said: “We recognise that some customers keen to take the second step on the property ladder can find it difficult. Through the introduction of these new, competitive rates, we are working to support those that want to move up and lock in to a competitive fixed rate, including first time buyers and those seeking to remortgage.”