Does this offer represent a lowering of the SDF? August 4, 2023 August 4, 2023 admin No. Bhutan’s SDF is fixed at USD 200 per person, per day, and this incentive should never be communicated as an SDF of USD 100 per person, per day. About Author admin Previous postIs everyone entitled to an SDF incentive?Next postIf my guest takes the 4+4 SDF incentive (or any other incentive) and then spends a night in the border town, can they only pay for three nights SDF and still get four nights free?