NH current use discount is 20% and what happens it someone posts who is receiving this discount
See
http://www.nhspace.org/faq.shtml#6 for a FAQ on current use
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What is the Recreational Discount?
The Recreational Discount is an incentive for landowners to keep their land open to others for six low-impact land uses; skiing, snowshoeing, fishing, hunting hiking and nature observation. In exchange for agreeing to allow all six of these activities, the current use assessment is reduced by 20%. No other recreational activities must be allowed, and the landowner may post against any other uses. Participation in the Recreational Discount is optional. (RSA 79-A:4,II) "
Of course, those who are inclined to be vengeful may use the option in paragraph 2 but I think it may still be the start of the "nuclear effect".
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What if I receive the Recreational Discount AND post my land?
There is a provision that allows a landowner who is receiving the Recreational Discount to post with the permission of the local assessing officials. An example of this would be when a farmer wants to post a field he is pasturing cows in during hunting season. Town officials usually grant this type of reasonable request.
However, if someone posts their land while receiving the Recreational Discount without the permission of local assessing officials, the 20% reduction will be removed the following tax year, and the property will not be eligible to receive the discount for the subsequent 3-year period, and a penalty is incurred. "