Obtaining and, where needed, translating records; legal review; travel; and housing deposits. Government charges apply according to the route taken and should be confirmed through official sources, since those amounts are set independently of any employer arrangement.
Price the front-loaded list first
Write the pre-payroll list on its own, with an amount beside each item and a note on whether it is reimbursable. What emerges is usually a smaller and more manageable figure than the total move, and it shows which items are genuinely optional. That list, not the package's headline value, is the number the household has to be able to cover.
Where this list usually goes wrong is that it is copied from the employer's reimbursable categories, so anything the policy ignores disappears from the household's own planning: a lease application fee, a deposit for utilities, storage between the two homes, replacing a device that will not work on arrival. None of those are exotic, and none appear in a relocation schedule. Build the list from what will be paid, then mark reimbursable against it, rather than the other way round.
Government charges belong in their own line because they follow the route taken — a port-of-entry request and a petition filed on Form I-129 are not priced the same — and current amounts should be read from the official source at the time the step is taken.