Keeping records that someone else can follow

Retirement involves tax positions that depend on events from decades earlier, and on documents that are easy to lose and difficult to reconstruct.

What has to be kept indefinitely

Records of non-deductible IRA contributions. These create basis that reduces the taxable portion of future withdrawals.

The relevant tax form should be filed for each year such a contribution is made, and copies retained.

Without the documentation, withdrawals may be taxed in full — meaning tax paid twice on the same money.

Cost basis for taxable investments. Brokers report basis for more recent purchases; older holdings, transferred accounts and inherited assets frequently have gaps.

Missing basis records can result in the entire proceeds being treated as gain.

Home improvement records, which add to the basis of a property and can reduce taxable gain on sale.

These accumulate over decades and are routinely discarded.

Records of gifts above the annual exclusion, and copies of any gift tax returns filed.

Health savings account receipts, where the strategy of deferring reimbursement is used. Without them, the accumulated qualifying expenses cannot be substantiated.

Estate documents, including any valuations establishing basis for inherited assets.

What to keep for a defined period

Tax returns and supporting documents, generally for at least the period during which a return can be examined, and longer where basis or carryforwards are involved.

Because capital loss carryforwards and basis records persist indefinitely, the returns establishing them should be kept indefinitely regardless of the general rule.

The master document

The single most useful thing to produce, and it takes an afternoon.

A plain list containing:

Every account, with institution, account type and approximate value.

Every insurance policy, with insurer and policy number.

Pension and annuity arrangements.

Property, with title details and mortgage information.

Professional contacts — adviser, accountant, attorney.

Where original documents are kept.

Digital account details and how access is provided.

Recurring obligations and subscriptions.

Executors and family members routinely spend months assembling this information from scratch, and much of that effort is avoidable.

Digital access

An increasingly serious problem.

Accounts protected by two-factor authentication tied to a phone can be effectively inaccessible after death or incapacity, even to someone with legal authority.

Password managers with a documented emergency access arrangement are the practical solution.

Many services also offer legacy contact features, which are worth setting up.

Leaving passwords in a document is a security risk; leaving no route to them is a practical one, and the balance is generally a password manager with a documented recovery path.

Where to keep things

Originals of essential documents in a fireproof container at home or a safe deposit box, with the location known to the people who would need them.

A caution about safe deposit boxes: access after death can be restricted depending on how the box is titled and on state law, which occasionally prevents access to the very documents needed.

Digital copies of everything, stored somewhere accessible to a trusted person.

The review

Annually, briefly.

Update the master document. Confirm the professional contacts are current. Check that beneficiary designations still reflect intentions. Confirm that whoever would need access knows how to get it.

The purpose of all of this is not tidiness. It is that at some point another person will need to understand your affairs, probably in difficult circumstances, and how easy that is depends entirely on what you did in advance.

What can be discarded

The other half, since indefinite accumulation is its own problem.

Routine account statements once the annual summary is received, provided the annual documents are kept.

Utility bills and receipts for non-deductible expenses after any warranty or dispute period.

Documents for accounts and policies that have been closed, once any relevant tax period has passed.

Shredding rather than discarding anything containing account numbers or personal details is the standard precaution.

Doing it once

The practical recommendation is a single afternoon spent creating the master document and organising the essential files, followed by a short annual update.

Households that have done this describe it as one of the more satisfying tasks available, largely because it converts a persistent low-level worry into something finished.

General information only, not tax or legal advice. Record retention requirements vary — consult a qualified tax professional about your own situation.