If you are a first time buyer of a new build house and carry out works on the house after closing on the sale, can you then claim Help-To-Buy (HTB), Home Renovation Incentive (HRI) and DIRT refund on your savings? You can definitely claim HTB (assuming you've paid enough income tax\DIRT in previous four years). HTB is 5% of purchase price to a limit of 20k. Say your claim is only 15k and you have paid more than 15k income tax in the previous four years, so your income tax covers HTB claim fully. Can you then separately go and claim back DIRT for previous four years (assume DIRT was less than 5k - in case the limit of 20k still applies when making separate claims?). Finally, if you the move into your new home and carry out additional work on the property within the same year as claiming HTB, can you use the HRI scheme to claim back the VAT you've paid for this additional work (assuming the work qualifies and is over the specified minimum amount)?