First-time buyers and homeowners with LTVs between 85% and 90% can benefit from the cashback when taking out a 2-year fixed rate mortgage.
Remortgage rates have also been slashed, with a new 5-year fixed mortgage offering a best buy rate of 2.89% for 60% LTV and below.
Ian Ramsden, TSB mortgages director, said: “While those with smaller deposits can receive £1,000 back in their pockets, those looking to spruce up their home this spring can do so at a lower cost.
“We want to help homeowners across Britain thrive no matter where they are on the housing ladder, and by helping customers get a better deal we’re doing just that.”
The bank is also shaving 0.2% off many of its remortgage rates, with its 2-year fixed rate products between 60% and 75% LTV now standing at 1.99% with a £1,995 fee, 2.28% with a £995 product fee or 2.89% with no fee.