It's a little hard to know whether this is reasonable or not without knowing more about the circumstances (dollar amounts, is this change your decision or their

It's a little hard to know whether this is reasonable or not without knowing more about the circumstances (dollar amounts, is this change your decision or theirs?). I haven't experienced it personally but I've had friends in similar situations. It's not uncommon for traveling roles to have additional incentives. I worked for a company that regularly added an additional percentage to your salary if you were on a temporary relocation or were regularly traveling for your role. This was to account for the inconvenience of being away from home, family, etc. When you returned home permanently that percentage was removed. I would ask if there is a documented policy discussing the compensation differences between traveling and in office roles. A company of the size you mentioned should have a policy for this kind of thing. Understanding the policy should help in your communication with HR.