Advertising
The new product has a two year fixed-rate of 6.74 per cent and is available up to 75 per cent loan-to-value (LTV).
It also comes with a £1,499 arrangement fee.
NatWest has reduced the rate on its existing two-year fixed rate buy-to-let (BTL) product from 7.09 per cent to 6.99 per cent and reduced the arrangement fee from £2,499 to £1,499.
The two-year tracker product has had its rate cut from 7.09 per cent to 6.99 per cent and the arrangement fee from £2,999 to £1,999.
Graham Felstead, head of corporate accounts for RBS Intermediary Partners said: "While the market is still challenging, the buy-to-let sector is still offering encouraging opportunities.
"Our business volumes are now at much more manageable levels allowing us to ease the rates on existing products and introduce a very competitively priced new one."