That particular objection has never come up. If it did I'd do as others have suggested and offer to donate to charity, amazon vouchers, or similar. The issue t

That particular objection has never come up. If it did I'd do as others have suggested and offer to donate to charity, amazon vouchers, or similar. The issue that has come up is, as @rubinelli identified, tax hassles. In those instances we've gone the charity route. (It's interesting actually. Now that I think of it the payment isn't really the issue. It's that we are visibly demonstrating how we value the interviewee's time.)