How much retirement income will you need?
Build an income target from actual spending, taxes, and one-time costs instead of relying on a replacement-rate shortcut.
This guide works from household spending toward the amount the portfolio must provide. The calculation comes before the broader planning discussion.
Turn spending into an income target
Build from household spending.
Separate essential and flexible goals.
Model taxes and irregular costs explicitly.
Revisit the target annually.
A worked income-target example
Suppose a household wants $80,000 of annual spending in today's dollars and expects $35,000 from Social Security and pensions.
Find the portfolio-funded amount
$80,000 minus $35,000 leaves $45,000 for the portfolio to provide in the first retirement year.
Translate income into a planning target
At an illustrative 4% starting withdrawal rate, $45,000 divided by 0.04 produces a $1,125,000 portfolio target before taxes, fees, and reserves.
Test the fragile assumptions
A 3.5% rate raises the target to about $1,286,000. Lower flexible spending or a later retirement date may reduce the gap.
Start with spending, not salary
A replacement ratio can be a useful reasonableness check, but it hides the details that decide whether a plan works. Start with the last twelve months of household spending. Remove costs that clearly end before retirement, add costs likely to begin, and keep taxes as a separate line rather than pretending they disappear.
Split the result into essential spending, flexible lifestyle spending, and irregular reserves. That makes later tradeoffs visible: a plan that covers essentials but not every travel goal is different from a plan that cannot cover housing or healthcare.
Use three phases
Many households do not spend a flat inflation-adjusted amount forever. Early retirement may include travel and projects, middle retirement can settle, and later years may shift toward care and support. Model the phases explicitly without assuming lower later spending will cancel healthcare or long-term-care risk.
Translate the target into a portfolio gap
Subtract dependable income such as Social Security and pensions from annual spending. The remainder is the first-year portfolio draw. Our retirement-gap calculator then tests whether current savings, future contributions, time, returns, inflation, and that draw fit together. The output is a planning range - Not a promise.
Audit the target before trusting it
A retirement income target becomes useful when every large line has a source and every uncertain line has a range.
Keep taxes visible
Estimate spending before and after tax rather than treating taxes as a leftover. The tax amount depends on where income comes from, filing status, and deductions, so carry it as a separate planning line that can be updated.
Create irregular reserves
Home repairs, vehicles, family support, and large trips do not fit neatly into a monthly average. Give each major item an amount, likely timing, and funding source so one large year does not look like plan failure.
Reconcile with real spending
Compare the estimate with at least a year of actual transactions. Explain every large difference. A target built from memory often misses annual bills and quietly keeps work expenses that may end.
What to save with the estimate
Keep the twelve-month spending total, the essential and flexible split, the tax estimate, dependable income, irregular reserves, and each scenario result. Add the source date for every large number. At the next review, update the changed lines instead of rebuilding the target from memory. This makes a large shift easy to explain and helps another household member or adviser understand the calculation.
Leave with a range, not one magic number
Keep the spending evidence, dependable-income estimate, tax allowance, and irregular reserves together so the target can be updated without starting over.
Connect this decision to your plan
A useful retirement plan is not one perfect number. It is a set of assumptions, a gap you can measure, and actions you can revisit each year. Use the full retirement planning framework to keep this choice connected to the rest of the topic.
Put your spending and dependable income into the retirement gap calculator.
Before accepting the target, stress-test the retirement budget for irregular costs.
Once the target is clear, project the savings path with the compound growth calculator.
Primary sources
Rules, limits, and program details can change. Start with these first-party resources and confirm the version or effective date that applies to you.