Should I subtract taxes from my retirement accounts when calculating net worth?
by Lee Schmidt
Published October 23, 2026
For a standard personal net worth snapshot, generally record retirement accounts at their current balances without subtracting hypothetical future withdrawal taxes. If you want to estimate what those balances might provide after taxes, build a separate after-tax planning view. The two figures answer different questions, so keep their labels and assumptions visible. Taxes you already owe still belong among your obligations; they are not the same as estimated taxes on future withdrawals.
A balance snapshot and an after-tax estimate answer different questions
A balance-based net worth snapshot measures what you own minus what you owe on a particular date. A retirement account belongs in that snapshot at its current value, even when withdrawing the money later may produce a tax bill. A possible future tax cost is not automatically a tax bill you owe today.
An after-tax planning estimate asks a different question: how much of the recorded retirement value might remain after assumed withdrawal taxes? That can help you compare accounts with different tax treatments. It does not replace the account balance or establish what your eventual tax bill will be.
Neither view needs to hide the other. Keep your regular net worth total for tracking balances consistently, and show a second total with the estimated tax adjustment underneath it. Calling that adjustment an estimated future tax allowance, rather than a current debt, keeps the distinction clear.
Tax treatment depends on the money inside the account
For US federal income tax purposes, withdrawals of pre-tax retirement money are generally taxable as ordinary income. That includes pre-tax money in a traditional 401(k) or traditional IRA. Tax deferral postpones taxation; it does not mean the entire recorded balance will eventually be available to spend after taxes.
Qualified withdrawals from a Roth IRA are free of federal income tax. Qualification conditions matter, so a Roth label alone is not a promise that any withdrawal today is tax-free. An after-tax worksheet should state explicitly when it assumes future withdrawals meet those conditions.
Traditional accounts can also contain after-tax contributions, so the full balance is not always taxable on withdrawal. If an account contains different tax components, use account and tax records to identify them rather than applying one percentage to everything. Leave an uncertain component marked unresolved until you have enough information to estimate it responsibly.
Future withdrawal taxes depend on factors including withdrawal timing, other taxable income, applicable state tax treatment, and the tax rules then in force. That uncertainty is why a planning assumption should not be presented as a measured liability.
Build the two views from one dated worksheet
Use the same account values and debts in both views. Change only the clearly identified tax assumptions, so you can explain every dollar of the difference.
- Record the standard snapshot first. Choose a date, collect current balances, and subtract existing debts and other amounts already owed. Keep any already-owed income tax separate from the estimate of taxes on future retirement withdrawals.
- Identify each retirement balance's tax treatment. Separate wholly pre-tax balances, Roth balances, and accounts with mixed or uncertain treatment. An employer plan may have more than one tax component, so read the statement rather than relying only on the plan's name.
- Choose explicit hypothetical assumptions. Write down the tax percentage used for taxable retirement money and whether Roth withdrawals are assumed to qualify for tax-free treatment. State what taxes the percentage is intended to represent. Do not silently treat it as both a federal-only estimate and an all-tax estimate.
- Adjust only the relevant balance. For a wholly pre-tax account, the simplified planning value is balance × (1 − assumed tax percentage). Keep a Roth balance unchanged under a qualified-withdrawal assumption. Do not use that simple formula on a mixed account until you have addressed its taxable and nontaxable components.
- Hold everything else constant. This comparison adjusts today's balances for hypothetical future taxes; it does not add future contributions or investment growth. A retirement-income projection requires additional assumptions and answers a broader question.
- Show both totals and their difference. Label the second figure “net worth adjusted for estimated retirement taxes,” with the assumption date beside it. Retain the original balances so a later change in your tax estimate does not rewrite the underlying account history.
A tax rate that applies to one additional dollar of income is not necessarily the average rate that would apply to retirement withdrawals spread across years. Do not automatically multiply every retirement account by your current tax bracket. If you need a personalized estimate, the withdrawal pattern and your other income need their own analysis.
A worked example separates the balance from the tax assumption
Suppose you have $40,000 in cash accounts, $300,000 in a wholly pre-tax traditional retirement account, $100,000 in a Roth IRA, and a $20,000 loan balance. These are your only assets and debts in this example, and you have no already-owed income tax.
For the planning column, assume a hypothetical 20% total tax cost on the pre-tax balance and qualified, tax-free Roth withdrawals. The 20% is an illustration, not a current bracket, recommended rate, or forecast. The example does not assume you withdraw everything today.
The estimated tax allowance is $300,000 × 20% = $60,000. The adjusted retirement value is $300,000 − $60,000 = $240,000, and adjusted net worth is $420,000 − $60,000 = $360,000.
Your standard net worth remains $420,000. No tax has been paid, no money has left an account, and no investment value has changed merely because you added the planning column. The $60,000 difference comes entirely from the stated assumption.
Changes in assumptions are not changes in account value
An after-tax estimate can move even when every account balance stays unchanged. Using the same example, changing only the hypothetical tax percentage produces these results:
These percentages are sensitivity tests, not suggested rates. Moving from the 20% assumption to the 30% assumption lowers the estimate by $30,000, but your accounts still hold the same amounts. Record the change as an assumption revision, not an investment loss.
Keep balance updates and assumption reviews separate. Update the account values on your regular tracking schedule, and revisit the tax assumptions when your planning circumstances change. Compare standard totals with standard totals and adjusted estimates with estimates using clearly identified assumptions.
Also define the scope of the adjustment. If you own other holdings with potential taxes on sale, a worksheet that adjusts only retirement accounts is not a complete after-tax liquidation estimate. Its narrower label tells you what it includes without claiming to calculate every possible tax cost.
Common mistakes
- Subtracting one percentage from every retirement account. Pre-tax money, Roth money, and accounts with after-tax contributions do not necessarily have the same withdrawal treatment.
- Treating a hypothetical percentage as a current tax bracket. An illustrative planning assumption is not a statement of the tax rate that applies to you.
- Counting the tax allowance twice. Do not reduce the retirement account value and also subtract the same future-tax estimate as a separate obligation.
- Ignoring taxes already owed. Keeping hypothetical withdrawal taxes out of the standard snapshot does not erase an existing tax bill.
- Comparing differently labeled totals. A standard snapshot this month and a tax-adjusted estimate next month do not form a meaningful trend without reconciliation.
- Reading either total as cash available today. Account value and estimated eventual spending value are different from money available for current bills.
Common questions
Should I subtract 20% from my traditional retirement accounts? Not as a default. The 20% used here is only a hypothetical assumption for a wholly pre-tax balance. Keep the current account balance in your standard snapshot, and use a separately labeled estimate if you want to explore future tax costs.
Are equal traditional and Roth balances worth the same amount? They contribute the same recorded dollar amount to a balance-based snapshot, but they may support different amounts of after-tax spending. The comparison depends on the traditional account's taxable portion, the taxes assumed on its withdrawals, and whether the Roth withdrawals qualify for tax-free treatment.
Can I use my current tax bracket for the estimate? You can test a clearly labeled percentage, but your current bracket alone does not establish the tax cost of future withdrawals. A single percentage applied to the whole balance is a simplifying assumption, not a personalized calculation. Show more than one scenario when you do not have a supported estimate.
What if I already owe taxes from a retirement withdrawal? Record the unpaid tax obligation separately from hypothetical taxes on money still in the retirement account. Check that the withdrawal, any withholding, and the remaining amount owed are reflected consistently. Do not subtract tax already paid as though it were still outstanding.
Does the adjusted figure show how much I can spend now? No. An estimated future-tax adjustment does not establish current access, withdrawal conditions, or cash available for bills. For the distinction between overall wealth and more accessible resources, see liquid net worth versus total net worth.
How Zypper handles this
Zypper calculates net worth from all your accounts and charts the total over time; manual accounts contribute the balance you set and change only when you update them. Read that balance-based total as an account snapshot, not as a personalized after-tax retirement projection, and keep your tax-assumption worksheet separate. See Net worth tracking and Manual accounts for the documented tracking behavior, or get started with Zypper to bring your account balances into one view.