How to View 401(k), IRA and Brokerage Accounts Together

Updated September 26, 2026.

You can view supported 401(k), IRA and brokerage accounts together through an account-aggregation application without transferring the investments. Start with an inventory, connect supported institutions, then reconcile the data. A combined balance is useful only when you know which accounts and details it includes.

Connecting information and consolidating custody are different actions. If your goal is visibility, test that first. A rollover or brokerage transfer should be a separate decision with its own account and tax review.

Build the inventory before connecting

List every account relevant to the question, its owner, institution and purpose. Distinguish individual and joint accounts and note which assets belong to the same household plan.

Keep sensitive identifiers in a secure place rather than copying full account numbers into a general worksheet. The inventory should tell you what exists without exposing more information than the task requires.

Connect supported accounts using the current product flow

Mezzi organizes information into Investments, Banking, Other Assets and Liabilities. Supported account connections can bring information together, and manual assets such as real estate can add context. Mezzi account groups

Use the application's current connection process and review the permissions presented. Institution coverage and available detail can vary. This guide does not assume a particular button label or promise every workplace plan connects successfully.

If an account is unavailable, record the gap. A manual value can help with a net-worth inventory, but it does not automatically provide holdings, transaction history or tax lots.

Reconcile the first view

Compare each connected account with a recent institution record. Check balance, date, owner and account type. Investigate differences rather than assuming either display is immediately current.

Pay attention to duplicates. During a transfer, old and new account records may both appear. A joint account may also be represented through more than one person's connection. Counting the same asset twice can distort both net worth and allocation.

A useful first review has three statuses: confirmed, needs updating and missing. Do not mark an account confirmed solely because a connection succeeded.

Understand the difference between balance and holdings coverage

A balance answers how much the account reports at a point in time. Holdings show the investments composing it. Transactions and tax lots provide different details again. A tool may have one layer without all the others.

For an allocation question, missing holdings can matter. For a tax question, a holdings list may still be insufficient. Ask which information supports the answer and which records remain at the institution.

Exposure X-Ray can help investigate underlying holdings in supported funds, but a connection is not a guarantee of complete fund look-through. Mezzi capabilities

Keep the purpose of each account visible

A combined picture is not an instruction to treat every dollar identically. A workplace retirement balance, a taxable account for a near-term goal and savings reserved for expenses have different roles and access considerations.

For example, a hypothetical household could see $500,000 in retirement accounts, $100,000 in taxable investments and $40,000 in savings. The $640,000 total does not establish that $140,000 is available to invest; the savings and taxable account may have specific commitments.

Use AI Personalization to state those goals and constraints. Ask the application to distinguish the accounts included in a particular analysis from the broader household total.

Ask one useful question first

Start with something you can verify: “Which of these accounts are included in this allocation, and what holdings are missing?” Then inspect the calculation and source records.

Other useful questions include whether visible investments share exposure, how cash needs relate to the accounts or which documents are needed for a fee review. Avoid beginning with a broad request to optimize everything; a focused question makes the quality of the answer easier to assess.

The allocation guide and overlap guide provide transparent examples of the calculations.

Review privacy and access

Read the permissions and Mezzi privacy policy. Consider who in the household should have access and what information is necessary for the question. A view of accounts does not itself grant another person legal authority to act on them.

Mezzi does not move money or execute trades simply because accounts are connected. Keep institution access and implementation responsibilities clear. Review current terms rather than relying on a generic claim that every financial connection has identical protections or retention rules.

Verify account totals before adding fund exposures together

Suppose you have a $200,000 current employer 401(k), a $150,000 former employer plan and a $100,000 brokerage account. The intended investment total is $450,000. If a linked account and a manual placeholder both represent the former plan, a dashboard may show $600,000. That is duplication, not additional wealth.

Use masked account identifiers, institution names and statement dates to distinguish the entries before removing or changing anything. Confirm which entry preserves the information you need.

Next check holdings coverage. If the former plan supplies only its $150,000 balance, the household total can still reconcile while exposure analysis remains incomplete. The supported $300,000 of detailed holdings should not be described as a full $450,000 look-through analysis.

Mezzi's connected view can help with this review, but the test remains the actual data available from your institutions—not a promise that every plan supplies identical detail.

Maintain the inventory

Recheck connections when accounts move, institutions change or balances appear stale. Update manual assets with a source and date. Remove or resolve duplicate representations after confirming what they represent.

Keep important statements and tax records independently. A connected application is useful for visibility, but it is not necessarily an archive of every document you will need later.

If you eventually decide to consolidate old retirement accounts, use the rollover guide and provider instructions. Seeing the accounts together gives you a better starting point for that decision; it does not make the decision for you.

Frequently asked questions

Does viewing accounts together require a rollover?

No. Supported aggregation can show information while investments remain at existing institutions. Custody consolidation is a separate decision.

What if one account cannot connect?

Record it as missing or use an appropriate manual entry if available. A manual value does not automatically supply holdings, transaction history or tax lots.

Why is my combined balance different from my statements?

Possible reasons include dates, stale data, missing accounts or duplicate representations. Reconcile each account with institution records rather than assuming the total is correct.

Can Mezzi see more than investment accounts?

Yes. Supported banking and liabilities can be included, with manual assets such as real estate and personal goals. Availability and detail vary.