The lender is adding two and 5-year fixed rate products to the range, which are available for new purchases and remortgages.
Notable offerings include a 2-year fixed rate deal at 4.09% and a 5-year fixed rate offering at 4.14%.
Both products are fee free, offer £500 cashback and a free standard valuation.
David Castling, director of intermediary lending at Atom Bank, said: “Over the past year we’ve remained focused on doing the right thing for our existing customers whilst evaluating the right thing to do for new customers from the perspective of a responsible lender.
“With greater certainty, we believe now is the right time to bring 95% LTV mortgages back on sale and support more people to own their home”.