In order to make the decision, you need to do a proper mathematical calculation of the 2 scenarios.
For simplicity, I assumed you have 11.5K of savings
Scenario 1
You keep paying the loan, and keep the 11.5K at 3%.
I calculate that in 2 years you will have 12059 euros in the bank (11.5K, 2 years, 3% - DIRT at 20%)
Scenario 2
You pay off the loan, and then save 550 per month at 3% for 2 years
At the end of 2 years, I calculate that you will have 13500 but you had to pay 800
to your net is 12700. I did this calculation on
www.jeacle.ie taking dirt into account.
So, there is not a lot of differenece between the options. Scenario 2 is slightly better,
but only if you do save the 550 every month, but has the disadvantage of you having less savings for the moment, if anything happens that you need them for.
BTW, The Permo are offering 4% on regular savings, which you gain you a little, if it keeps up for 2 years. Also, interest rates may possibly rise in a years time, which you improve the outlook of scenario 2.
I hope this is enough information to help you decide