The new range is exclusively available to those with three or fewer buy-to-let properties.
Rates on the products start from 3.14% for the 2-year fixed rate and 3.44% for the 5-year fixed rate.
The range has a maximum 75% LTV and comes with a free valuation option for remortgages with a maximum loan size of £1m.
The volatility in the stock market combined with the resilience in the housing market has resulted in an increase in first-time landlords, and this trend is expected to continue in 2021.
Paul Brett, managing director of Intermediaries at Landbay, said: “Now is a great time to invest in buy-to-let properties and demand in the buy-to-let sector is booming.
“Rent is increasing across the country, the stamp duty holiday is rumoured to be extended by three months and house prices continue to rise.
“It is no surprise to see more and more first-time landlords looking to invest, and those with one or two properties looking to increase their portfolios.
“Adding these products to our already market-leading range will ensure we fully support this growing number of potential landlords.
“Combined with our new calculator, cutting-edge technology and exceptional service, our product range caters for every client, whether new to the sector, or purchasing their latest portfolio property.”