Is Your TSMC Relocation Package Taxable? Questions to Ask Before Moving

Read the package

Break the package into cash, reimbursements and vendor payments

Create a line-item list: signing or relocation bonuses, household-goods services, temporary housing, travel, lease costs, home-sale assistance and tax gross-ups. For each, record who pays the vendor and what the agreement says about tax reporting.

Keep receipts even when a vendor is paid directly. Payroll treatment and employer reporting can differ from your intuitive idea of reimbursement — and you should not assume a company-paid item is tax-free. The federal rules explain why.

Federal treatment

Why most moving benefits now land in your wages

For 2026, IRS Publication 15-B says federal law permanently eliminates the qualified moving-expense reimbursement exclusion for most civilian employees, with narrow exceptions for qualifying active-duty Armed Forces moves and certain intelligence-community moves. The exact payment and its payroll reporting still determine what appears in your taxable wages.

A gross-up is additional compensation intended to offset some of that tax. It may not equal your final federal and Arizona result, and it is itself part of the compensation calculation — so reconcile the relocation statement with your pay records and Form W-2. The other clause worth that same attention is the one about giving money back.

Repayment clause

What you could owe back if you leave early

Relocation agreements often require repayment if you leave within a stated period. Confirm whether the obligation declines over time, which events trigger it and whether taxes or gross-ups are included — you may owe gross amounts back even though taxes were already withheld.

So size your cash reserve from the written clawback, not from the net relocation cash you received. And if repayment lands in a later tax year than the original wage inclusion, the tax mechanics can be complex — obtain tax advice before paying or netting amounts.

Arizona arrival

Reset your state withholding when you land

Arizona requires new employees subject to state withholding to complete Form A-4. A large relocation payment, spouse income or part-year residency can make the default percentage a weak estimate for you.

An advisor familiar with TSMC Arizona can organize the cash-flow plan while a tax professional reviews the wage reporting and your move-year residency.

Track it end to end

Your relocation ledger, from agreement to Form W-2

Run one ledger from start to finish: every benefit category, vendor payment, reimbursement, gross-up and withholding amount, checked against pay records as statements arrive. Keep the receipts and the signed agreement until both the tax questions and the repayment period have fully closed.

Use the ledger as preparation, not as individualized advice — current TSMC Arizona documents control your relocation package, and a tax professional should review the move-year reporting.

• List every cash and vendor-paid relocation benefit
• Mark the expected payroll and tax treatment of each item
• Understand the gross-up formula and its limits
• Model what you would owe under the early-departure repayment clause
• Reconcile the actual payroll reporting with a tax professional