Turning Pension, Social Security & Savings into a Monthly Paycheck

The paycheck idea

For most of your working life, payday is simple. The same amount lands in your account every two weeks, more or less. Retirement isn't like that. Your "paycheck" is built from several pieces, each with its own rules:

• A pension might start the month after you retire.
• Social Security might start at 62, 67, or 70 — whenever you decide to claim.
• Your 401(k) and IRA money is sitting there, available, but it doesn't pay you anything on its own. You have to pull from it on a schedule.

The job of a good retirement plan isn't to pile up "a number." It's to combine those streams into a steady monthly check that covers your real expenses, month after month, for the rest of your life.

The three main streams

The three biggest sources for most retirees:

• Pension. A monthly check from a former employer (or from CalPERS, UCRP, CalSTRS, FERS, military — most public-sector workers have one). The amount depends on your years of service and your final salary. It usually starts the month you retire.
• Social Security. A monthly check from the federal government. You pick the start age between 62 and 70. The later you claim, the bigger the check (see the Social Security claiming article for the math).
• Savings withdrawals. You pull money from 401(k)s, IRAs, and brokerage accounts. You decide how much, how often, and from which account.

Most retirees have at least two of these. Many have all three. The combined monthly check from all the streams is your "retirement paycheck."

The staircase — when each stream starts

Few retirees see all three streams turn on the day they retire. More common: each piece starts at a different age, and your paycheck changes every time a new piece kicks in.

A typical example for a public-sector worker:

• Age 62. Retire. Pension starts the next month. No Social Security yet. Savings has to cover the gap.
• Age 67. Social Security starts. Pension keeps coming. The monthly draw from savings can drop because Social Security is now adding to the check.
• Age 73. Required Minimum Distributions (RMDs) kick in — the IRS forces you to pull a certain percentage out of pre-tax accounts each year whether you need it or not (IRS Publication 590-B). Your total paycheck (after tax) usually goes up at this point, like it or not.

Each one of those milestones is a staircase step. Your monthly paycheck looks different in your 60s than in your 70s. A plan that treats retirement as one flat 30-year stretch misses this completely.

Three kinds of money — taxable, traditional, Roth

Not all of your savings is the same. Where you pull from changes how much you actually keep after taxes:

• Taxable brokerage. Already paid tax on. You owe capital-gains tax on the profit only (0%, 15%, or 20% depending on your bracket).
• Traditional 401(k) / IRA (pre-tax). Every dollar you pull out is taxed as ordinary income, like a paycheck. RMDs kick in at 73.
• Roth 401(k) / Roth IRA. Already taxed up front. Withdrawals are tax-free if you follow the rules (age 59½, account open 5 years). Roth IRAs have no RMDs.

The order matters. A common starting strategy: taxable first, traditional second, Roth last. That lets the Roth keep growing tax-free and can lower your tax bill in early retirement.

Taxes on each stream

Plan in after-tax dollars. Here's what gets taxed and how:

• Pension. Federal ordinary income. Most states tax it too; some — like Florida, Texas, and Nevada — don't.
• Social Security. Up to 85% can be federally taxable based on your "provisional income" (see the Social Security claiming article). Most states don't tax it.
• Traditional 401(k) / IRA withdrawals. Ordinary income.
• Roth withdrawals. Tax-free if you follow the rules.
• Brokerage. Long-term capital gains rates on profit only. Dividends and interest are taxed every year even if you don't sell.

A $7,000 monthly check from a 22% tax bucket isn't $7,000 to spend — it's closer to $5,500.

Inflation and COLA

What costs $5,000/month today might cost $9,000/month in 20 years at 3% inflation. Your paycheck has to keep up.

• Social Security has automatic COLA (Cost-of-Living Adjustment) every year, based on inflation. No cap.
• Public pensions usually have a COLA, but with a cap (often 2–3%). In years when inflation runs higher than the cap, the pension slowly loses buying power.
• Savings withdrawals. You decide. If you draw $40,000 in year 1, you can bump it to $41,200 in year 2 to keep up with 3% inflation. The 4% rule already builds this in.

If your pension's COLA is capped below inflation, plan on more from savings to fill the gap.

Survivor income — what happens when one spouse dies

This is the part most people don't plan for, but it's the single biggest financial event in many retirements.

• Social Security. The household keeps the larger of the two benefits, not both. If your monthly SS is $2,800 and your spouse's is $2,200, the household drops to $2,800.
• Pension. Depends on the survivor option picked at retirement. Single-life stops paying when the worker dies. Joint-and-survivor keeps paying (usually 50% or 100%) to the surviving spouse.
• Savings. Goes to the named beneficiary. No drama if accounts are set up correctly.
• Expenses. Don't drop by half when one person dies. Plan for that.

Most households should answer two separate questions: "do we have enough together?" AND "will the surviving spouse have enough?"

Healthcare and Medicare timing

Healthcare is the biggest expense most retirees underestimate. The timing matters a lot.

• Before 65. No Medicare. You're on the ACA marketplace, COBRA, or employer continuation coverage. For a 60-something couple, marketplace premiums can run $1,500–$2,500+ a month, depending on subsidies. This is one of the biggest reasons people delay retirement to 65.
• At 65. Medicare starts. Part A is usually premium-free. Part B and Part D charge monthly premiums that change each year — check current rates at medicare.gov. Higher earners also pay IRMAA — Income-Related Monthly Adjustment Amount — surcharges on top.
• Out-of-pocket for dental, vision, hearing aids, and long-term care. Medicare doesn't really cover those.
• Long-term care. Not covered by Medicare. Medicaid covers it after you've spent down most of your assets. Long-term care insurance exists but is expensive.

Plan healthcare as its own line in the paycheck, especially before 65.

Mortgage, debt, and emergency cash

A few details that shift the picture:

• Mortgage. If yours pays off mid-retirement, your monthly expenses drop. Your paycheck need drops the same amount. Plan for both phases.
• Credit card debt. Don't take it into retirement. A 22% balance eats more than any reasonable investment earns.
• Emergency cash. Keep 6–12 months of expenses in a high-yield savings account, separate from your investments. That way you don't have to sell stocks at the bottom to cover a roof replacement.
• Predictable lumpy costs. Replacing the car every 10 years, replacing the roof every 25, helping a grandchild. These aren't "emergencies" — they're scheduled. Set aside money for them on a regular basis.

Why the paycheck changes over time

Plan in phases, not as one steady state. Common shifts most retirees see: the "early-retirement" phase before Social Security kicks in (savings does more work); the "Social Security on" phase (savings does less); the RMD phase at 73 (forced withdrawals from pre-tax accounts); the "mortgage paid off" phase (lower monthly need); and the "one spouse died" phase (Social Security drops to the larger of the two; pension may drop depending on the survivor option).

A good plan models each phase separately — not as a flat 30-year average.

How to use this with the tools

Two tools work together:

• The Retirement Readiness tool combines your pension, Social Security, and savings withdrawals into a single monthly check. It handles the year-by-year staircase as each stream starts, plus the after-tax math.
• The Monte Carlo simulator stress-tests that plan against thousands of market histories — to see whether your plan survives the bad sequences, not just the average ones.

Start with the Readiness tool. Enter your real numbers — your pension amount, your Social Security at the age you plan to claim, your savings broken down by taxable / traditional / Roth. Check that the after-tax monthly check it shows actually covers your expenses in today's dollars. Then stress-test with Monte Carlo.