If the offer isn’t anywhere near the ballpark you’d accept, you may decide to reject it and make it clear you see no point making a counter offer as your miles apart. That’s a bold strong move but risks killing off the negotiations and pushing you towards a dispute and tribunal claim. The alternative is to make a sensible counter offer with room between the two positions to allow further compromise. The key word being ‘sensible’. As much as a low offer may end an negotiation so might a very high offer. Pitching the offer at a level that makes sense for both sides is the art of a good settlement agreement negotiation.