Look at this example of what I said in my previous reply.
This is a flight planned for the A350 between both factories LFBO Toulouse and EDHI Hamburg. I didn't change anything between examples, but one considers that you will not use the contingency fuel (the LIDO OFP format), so it considers that you will take-off with 13,6tons of fuel and land with 4,7t. In this case, if you use the contingency fuel or part of it, you will land at destination with less fuel than those planned 4,7t, but as long as you land with at least 4,2t you are good to go, as those 4,2t are the fuel for alternate plus final reserve of 30min holding at 1500AGL at the alternate.
The other example, using the Easyjet OFP format considers the MINIMUM fuel that you shall have from take-off to landing. In this case the MINIMUM take-off fueel on board is 13,1t (instead of 13,7) and MINIMUM landing fuel is 4,2t. If you won't use the contingency fuel, you will end up landing with more than those shown 4,2t.
Note that even in the Easyjet OFP it says that the planned FOD is 4,7t even though the landing fuel is around 4200kg.
Note that this 0,5t (or more precisely 445kg) of fuel that you will eventually land with on the Easyjet OFP is this low because the flight itself is quite short. On a 10+h flight it's perfectly plausible that you land with 2-3t more than shown (if using the Easyjet format for example (I don't know if there are other formats that show the minimum fuel at destination).
Contingency fuel quantity is dependant on the trip fuel (either 5% or 3% of TRIP or 5min cruise consumption, whichever is more, or 20min at cruise consumption, whichever is less).
I don't know what OFP format you are using, but that may be the reason why you are landing with more fuel than "planned".
LIDO OFP:
Easyjet OFP: