Collecting Documents From a Client Who Moved States

Collecting documents from a client who moved states adds four groups to the usual request: records that pin down the move date, forms mailed to the old address, payroll paper showing wages earned in each state, and prior-year returns and notices from both states. Tag each document old state, new state or both.

Which tax documents change when a client moved states?

A client who moved states during the year still sends the usual 1040 documents, but several of them now split between two states, and new ones appear. The move adds proof of when it happened, a second set of state forms, and paper that may have gone to an address the client no longer checks.

Start with the regular request built from last year's return, then layer the move on top. The household-level approach to life changes, where each change becomes its own expected line, is set out in 1040 document collection for dependents and life changes. This post covers the lines a move adds and how to collect them.

The reason the list grows is that each state may tax part of the year. The Minnesota Department of Revenue page on part-year residents, last updated December 16, 2025, says a person who moved to or from Minnesota during the tax year and established domicile is a part-year resident, and that part-year residents file Form M1 with Schedule M1NR. The New York State Department of Taxation and Finance nonresident and part-year resident FAQs, updated October 24, 2025, point part-year residents to Form IT-203 and say their income subject to tax will be split. A client who moved between those two states would likely have a return in each, and each return needs its own support.

That split is why every document on the list needs a state tag. A W-2 for wages earned before the move supports the old state's return. A 1099-INT from a bank account held all year may matter to both. A property tax bill for the new home matters only to the new state. Tagging each line at the start keeps the firm from discovering in March that the old state's file has nothing in it.

The firm is not deciding residency at intake. What the collection side needs is the documents a preparer will look at to make that call, and the rest of this post lists them.

Records that show when the client moved states

Records that show when the client moved states are the leases, closing statements, utility start and stop dates, and address-change notices that put a date on the move. The move date can decide which state taxes which income, so the firm collects the documents behind the date, not only the date the client remembers.

State guidance lists the kinds of evidence it looks at. The Minnesota Department of Revenue page on domicile (residency) for individuals, last updated December 12, 2025, says no single factor decides domicile. Among the items it lists are the state that issued the driver's license, voting registration and history, the location of newly acquired living quarters, the status of former living quarters, and address change notifications. The New York FAQ says a change of domicile requires clear and convincing evidence that the old domicile was abandoned and a new one established.

Turn those factors into a short request. For a client who rented, ask for the new lease and the notice ending the old one. For a client who bought or sold a home, ask for the closing statements. Utility start and stop confirmations, the new driver's license, the vehicle registration and the voter registration card each carry a date. The client does not need to send all of them. Two or three that agree on the move date are usually enough for the preparer to work from.

Ask about the address change with the IRS too. The IRS page about Form 8822, last reviewed March 31, 2026, says the form is used to notify the IRS of a change to a home mailing address. If the client filed one, a copy shows the date the IRS was told.

Watch for dates that disagree. A lease that starts in June, a driver's license issued in September and a client who says "we moved in the summer" give the preparer three dates. Collect all three and note the gap, so the question is asked before the return is prepared rather than after.

Tax forms mailed to a client's old address after the move

Tax forms mailed to a client's old address after the move are the W-2s, 1099s and state notices that payers and agencies sent to the address on their records. A payer that was never told about the move mails the year-end form to the old address, where the client may never see it.

Employers mail W-2s to the address on file. The IRS General Instructions for Forms W-2 and W-3, for tax year 2026, say employers furnish 2026 W-2 copies to employees by February 1, 2027, and that the requirement is met if the form is properly addressed and mailed by that date. The same instructions tell employers to keep for four years any employee copies they tried to deliver but could not. So a W-2 returned from the old address may sit with a former employer rather than reach the client.

Make a list of every payer that might still have the old address. Go through last year's return: each employer, bank, brokerage, mortgage servicer and state agency that sent a form last year sent it to the old home. Add any account opened before the move. Ask the client which of these were told about the new address, and when.

For each payer not told in time, give the client a specific action. Download the form from the online account if there is one. Ask the former employer for a reissued W-2. Ask whoever now lives at the old address, or the client's mail forwarding, whether anything arrived. Mark these lines "may be at old address" on the request, so the client knows why each one is listed.

State notices are easy to miss. A notice from the old state about a prior year, or an estimated payment voucher, goes to the address on that state's records. Ask the client directly whether anything from the old state's revenue department has arrived since the move.

A payer whose form never made it from the old address is easiest to spot against last year. Schema CPA builds each client's checklist from the prior return, so a 1099 that came in last year and has not this year shows up as missing; the client tracker demo shows that view.

W-2s and pay stubs that split wages between two states

W-2s and pay stubs that split wages between two states are the payroll records that show how much was earned while living or working in each state. A client who kept the same employer through the move may receive one W-2 with two state lines, while a client who changed jobs receives a W-2 from each employer.

The W-2 has room for two states. The IRS W-2 and W-3 instructions say boxes 15 through 20 report state and local income tax information, hold wages and taxes for two states and two localities, and that an employer prepares a second Form W-2 for any more. So a client who worked in three states for one employer may get two W-2s with the same employer name. How to read and record a W-2 with more than one state is covered in W2 OCR edge cases: W-2c forms, multiple states and duplicate copies.

Ask for the pay stub nearest the move date along with the W-2. Year-to-date figures on that stub show wages paid up to the move, which helps the preparer check the state split on the W-2. If the employer changed the client's state withholding at the move, the stubs before and after show when it happened.

A client who changed employers at the move needs both W-2s. The old employer's W-2 is the one most likely to go to the old address, because the client had no reason to update it after leaving. Put it on the list with a note.

Watch for withholding that did not move. If the employer kept withholding for the old state after the client moved, the W-2 will show it, and the preparer will need to see it. Collect the W-2 as issued and flag the question for the preparer. Whether the withholding was right is a question for the preparer, not for intake.

Do you need prior-year returns from both states for a client who moved?

A client who moved usually needs prior-year returns from both states in the file: the old state's last return and, if the client has filed there before, the new state's. Prior returns show carryovers, refunds, estimated payments and filing patterns that each state's current return depends on.

The old state's return is the important one. It shows whether the client had a refund applied to this year's estimated tax, made estimated payments or carried anything forward. Ask for the full filed copy, with every schedule.

The new state's prior return matters if the client had income there before moving, or has moved back to a state they lived in earlier. Ask the client whether they have ever filed in the new state.

Ask for notices and refunds from both states. A refund check from the old state for last year, a letter adjusting last year's return, or an estimated payment confirmation each affects this year. These arrive irregularly and often at the old address, so ask for them by name.

Credits between states can depend on the other state's return. The Virginia Department of Taxation page on credit for taxes paid to another state is one example: it asks for a copy of each other state's return and schedules with the Virginia return, and says W-2s, 1099s and K-1s cannot support the claim. The checks a reviewer runs on state returns, including that credit, are set out in state returns on the tax return review checklist. For collection, the point is to request both states' returns early, before the preparer asks for them.

If a prior return later turns out to be wrong because of the move, the follow-up paper is covered in collecting documents for an amended return.

When a client who moved states keeps a home or job in the old state

A client who moved states but kept a home, a rental or a job in the old state has ties to both states for the rest of the year, and the request list grows to match. Remote work for an old-state employer, renting out the old home or keeping it as a second residence each add documents.

Remote work for an employer in the old state adds payroll questions. Ask for the W-2 and the pay stubs, and ask the client where they physically worked each month after the move. Some clients keep a simple calendar of workdays in each state. If the client has one, collect it.

A rental of the old home adds a small business to the file. Collect the lease with the tenant, the rent received, the mortgage statement, the property tax bill, insurance and repair invoices for the rental period, and the date the home was first rented. The document set for rental income is closer to a business file than a household one. If the rental is held in an LLC or the client owns other businesses, the method in collecting documents from a client with several businesses applies.

A second residence kept in the old state can affect residency on its own. The New York FAQ, for example, describes a statutory resident as someone who maintains a permanent place of abode in New York for substantially all of the year and spends 184 days or more in the state. The Minnesota part-year page treats as a part-year resident a person who spent at least 183 days in Minnesota and rented, owned, occupied or maintained an abode there, a year-round residence with its own cooking and bathing facilities. For a client who kept a home in the old state, collect the documents that show it was kept, and any records of days spent there.

A two-state checklist for one client who moved

This example is for a fictional client, Theo Brennan, who moved from Minnesota to New York in June 2026 and kept his Minnesota employer as a remote worker. All names, dates and account numbers are made up for the example.

Nine lines, each with a state tag. Two of them went to Minneapolis, so Theo's follow-up names the credit union form and the refund letter, and says where each was mailed.