Relocation packages and the tax nobody put in the budget

It is any payment or benefit your employer provides because you are moving for work. That includes reimbursed costs, costs paid directly to suppliers, lump-sum allowances and services such as temporary housing.

The form matters less than people expect. A cash allowance and a paid invoice can both be taxable, depending on the country and the rules.

So list every element of the offer, not just the headline allowance. Each country may treat each element differently.

Qualifying removal expenses and benefits, up to £8,000 for each move. Within that limit, your employer does not report them and you pay no tax on them. The GOV.UK relocation guidance explains what qualifies.

Qualifying costs are those connected with the move itself. Typical examples include selling the old home, buying the new one, transporting belongings, and travel and subsistence around the move.

Anything above the limit is taxable as employment income. So is anything that does not qualify, however closely it relates to the move.

You must change your main home because of the job. The trigger can be a new job, a change of duties, or a change in where you normally work, and the old home must be too far to commute from.

Timing matters as well. The costs must fall before the end of the tax year after the one in which you start the new role, a date HMRC calls the limitation day.

HMRC's manual on the main conditions for exemption sets out each test. National Insurance follows its own guidance on relocation, which differs in places.

Almost entirely, yes. From 2018, most employees lost the exclusion for employer reimbursements of moving costs, and the 2025 tax law made that change permanent. Members of the armed forces moving under orders keep the exclusion.

So flights, shipping and temporary housing paid by your employer count as wages on the American side. The moving expense deduction is also gone for civilians.

The IRS page on moving expenses to and from the United States covers the rules for international moves.

Usually, when the move takes you abroad to work, and the answer affects which reliefs a US citizen can use. IRS guidance treats most moving reimbursements as earned income, and a move to take up work in Britain generally ties the payment to foreign work.

That matters for a US citizen. Foreign earned income can support the foreign earned income exclusion or foreign tax credits, which can reduce the American charge.

The IRS tax guide for Americans abroad explains how to allocate a reimbursement between years and between foreign and US work. Our guide to choosing between the exclusion and the credit compares the two reliefs.

On the part Britain exempts, which is often the part people assume is simply free. With no British tax on those qualifying costs, there is no British tax on that income to credit against the American charge.

Surplus credits can still help. Relocation pay is compensation for work, so excess British tax on your salary may absorb some of the US tax on it.

In our practice we see the first-year US bill on a generous relocation package surprise people more than any other item. It rarely ruins the move, but it deserves a line in the budget.

The source rules change direction on the way home. A reimbursement for moving to the United States is generally US-source income, so it carries American tax with no foreign relief to offset it.

There is an exception worth knowing. Suppose a written agreement or company policy, made before you moved abroad, promised to pay for the return move whether or not you stayed with the employer. IRS guidance then treats that payment as pay for past work abroad.

So a return-move clause agreed at the start can change the tax later. Ask for it in writing before you leave, not when you are packing to come home.

Often, yes, but understand what it costs before you rely on it. A gross-up is an extra payment to cover the tax on the package, and the gross-up is itself taxable income in both countries.

Some employers go further with tax equalisation, which aims to leave you paying roughly what you would have paid at home. That arrangement usually needs its own calculations each year.

Either way, confirm which country's tax the employer is covering. A package grossed up for British tax alone can still leave an American bill for a US citizen.

It can, on both sides. A payment made before you become UK resident may fall outside British tax, depending on what it relates to, while a later payment can fall inside it.

On the American side, the year of payment and the allocation rules decide which return carries the income. A large reimbursement in December and one in January can land on different returns.

Our guide to the statutory residence test explains when British residence begins, which often decides the British answer.

Where you have any say over timing, ask payroll when each element will be paid. A short conversation can keep income on the return you expect.

Many offers include a clawback if you leave within a set period, often a year or two. Repaying money you were already taxed on raises awkward questions on both sides, and neither system handles it neatly.

The rules for recovering tax on repaid pay are technical, and the answer depends on the year of repayment and the amount. Take advice before agreeing a repayment schedule.

Read the clawback terms before you sign. The tax treatment of a repayment is far easier to plan than to unwind.

It can, and the rules do not simply mirror Income Tax. HMRC's National Insurance guidance on relocation has its own conditions, so a cost exempt from tax is not automatically free of contributions.

HMRC's National Insurance manual on relocation allowances explains the treatment. Your employer's payroll team applies it, but it is worth checking the payslip.

On the American side, Social Security follows the social security agreement. Where British National Insurance covers you, US payroll tax does not normally apply to the same pay.

Some packages help with selling the old home, through fee reimbursement or a buyer arranged by the employer. Help with qualifying disposal costs can fall within the British exemption.

On the American side, those payments are generally taxable pay. The sale itself is separate, and the home sale exclusion may shelter the gain on the house.

Our guide to whether you need a US return from abroad covers the filing that follows a move.

They are usually taxable on both sides, whatever the offer letter calls them. School fees, cost of living uplifts and home leave flights are benefits of the job rather than costs of the move.

Britain taxes them as employment income, and America taxes them as wages. A US citizen may use the housing part of the exclusion for some housing costs, subject to its limits.

Because these payments recur, they matter more than a one-off relocation package over a long assignment. Budget for the tax every year, not just the first.

Raise these points before you accept. Employers adjust packages more readily at offer stage than after the move.

Keep the final written terms with your tax records.

Take an illustrative example: an American engineer accepts a job in Cambridge with a relocation package covering flights, shipping, three months of temporary housing and a settling-in allowance.

In Britain, the qualifying costs within the limit are exempt, and payroll deducts tax on the settling-in allowance. On her US return, the whole relocation package counts as foreign earned income.

Surplus British tax on her salary absorbs much of the US charge, but not all of it. A small gross-up, agreed at offer stage, would have covered the rest.

The first is assuming a British exemption applies in America. It does not, and the US taxes almost every element.

The second is accepting a cash allowance instead of paid costs without checking the tax. Britain can treat the two very differently.

The third is ignoring the return move. A clause agreed at the start can change the source, and the tax, years later.

The fourth is losing the receipts. Without them, the British exemption is hard to evidence and the American allocation is guesswork.

We review relocation offers across both countries through our treaty relief service, including the British exemption, the US charge and the credits between them. Where a gross-up makes sense, we size it.

If you have an offer on the table, send us the package terms and we will set out the tax on both sides at a fixed fee agreed first. Our guide to avoiding double taxation explains how the credits work. This article is general information, not personal tax advice; take advice on your own facts from a qualified adviser.