Laddering for Retirement Income
Laddering for Retirement Income
A retirement-focused bond ladder aligns maturity dates with your expected spending needs, turning a portfolio of bonds into a predictable income stream that covers year-by-year expenses without forced selling.
Key takeaways
- Build a ladder around your actual spending timeline: a bond maturing in 2026 covers 2026 expenses, a bond maturing in 2035 covers 2035 expenses.
- This approach, called cashflow matching or liability matching, eliminates the need to sell bonds to raise spending money; you simply let them mature and withdraw the principal.
- A retirement ladder typically spans 20–40 years (or longer) and may have 15–40 rungs (one per year, or one per 2–3 years).
- Combine with stocks for growth and inflation protection over the very long term; the ladder provides the income floor.
- Works in any account (taxable, IRA, RRSP, TFSA); tax treatment varies by country.
The mismatch problem
A traditional 10-year ladder works well for growth and reinvestment during working years. But in retirement, you face a different problem: you need predictable income, and you want to avoid selling bonds when markets are down.
Consider a retiree with a 500,000 dollar portfolio split 60-40 (300k stocks, 200k bonds). If the stock market crashes 20%, the portfolio is now 420,000 dollars (240k stocks, 180k bonds). The retiree still needs 20,000 dollars that year to live on. If she sells stocks at a 20% loss, she crystallizes the loss and locks in poor timing. If she sells bonds, she is selling a volatile asset when she would rather hold for stability.
A liability-matched ladder solves this: bonds mature on a schedule tied to spending, so you never have to sell. You simply collect the principal and spend it.
Designing a retirement ladder
Step 1: Estimate your annual spending in retirement.
Suppose you expect to spend 60,000 dollars per year starting in 2026 and continuing to age 90 (30 years). Assume inflation of 2.5% per year.
| Year | Annual Spending |
|---|---|
| 2026 | 60,000 |
| 2027 | 61,500 |
| 2028 | 63,075 |
| ... | ... |
| 2055 | 99,000 (approx.) |
Step 2: Calculate the cumulative amount to invest per year.
Rather than a small rung per year (which could be inefficient with large bonds), group years into bundles:
| Period | Years | Total Cumulative Spending | Maturity Date to Use |
|---|---|---|---|
| 2026–2027 | 2 | 121,500 | 2027 (end of period) |
| 2028–2030 | 3 | 189,225 | 2030 |
| 2031–2035 | 5 | 331,875 | 2035 |
| 2036–2040 | 5 | 426,000 | 2040 |
| 2041–2045 | 5 | 531,375 | 2045 |
| 2046–2050 | 5 | 643,500 | 2050 |
| 2051–2055 | 5 | 768,000 | 2055 |
This groups your spending into 7 rungs, spanning 30 years of retirement.
Step 3: Determine how much capital you need to invest to cover each period.
If you expect your bonds to earn 3% yield on average, a bond maturing in 2027 with a 3% coupon will partially fund itself. But to be conservative, assume all principal comes from your initial investment.
To cover 121,500 dollars of spending in 2026–2027, you need to invest 121,500 dollars today in a bond or bond ladder that matures in 2027.
To cover 189,225 dollars in 2028–2030, invest 189,225 dollars in a bond ladder (or a single bond) maturing in 2030.
And so on.
If your spending totals 5 million dollars over 30 years of retirement, you need to invest approximately 5 million dollars in bonds today (this is a simplification; adjust for coupon reinvestment and inflation if desired).
A concrete retirement ladder example
You are retiring at 65 in 2026, with a 1 million dollar portfolio. You plan to spend 50,000 dollars per year (age-adjusted for inflation). You want a bond ladder that covers spending for 25 years (to age 90).
Inflation-adjusted spending:
- 2026: 50,000
- 2027: 51,250
- 2028: 52,531
- ... continuing to 2050 at roughly 85,000 dollars per year.
Build a 5-year bucket ladder:
| Bucket | Years | Total Spending | Maturity | Allocation |
|---|---|---|---|---|
| 1 | 2026–2030 | 262,500 | 2030 | 262,500 |
| 2 | 2031–2035 | 306,250 | 2035 | 306,250 |
| 3 | 2036–2040 | 356,875 | 2040 | 356,875 |
| 4 | 2041–2045 | 414,375 | 2045 | 414,375 |
| 5 | 2046–2050 | 480,000 | 2050 | 480,000 |
Total invested: 1,820,000 dollars.
But wait: you only have 1 million dollars. So you need to decide:
- Invest 1 million dollars today to cover the first 15–20 years, then supplement with Social Security, pensions, or income from stocks.
- Invest a portion in stocks for growth, which will add to your retirement fund, allowing bonds to mature later to cover later years.
Most retirees use a hybrid: 50,000 dollars of spending is covered by bonds (200,000 dollars allocated to near-term bonds), 30,000 dollars by Social Security, and the remaining 20,000 dollars by drawing down stocks or other assets.
Cashflow matching in action
Once the ladder is built, the mechanics are simple:
2026: Bond maturing in 2030 has four years to go. You need 50,000 dollars to spend. You live on this year's coupon income (if any) plus a 50,000 dollar withdrawal from a money-market buffer or from selling a small position.
2030: Your first ladder rung matures, returning 262,500 dollars. You use 50,000–52,000 dollars of it to cover 2030 spending. The remainder (210,000–212,000 dollars) goes into a short-term bond or money-market fund to cover years 2031–2032 spending (with coupons topping up as needed). Alternatively, reinvest the excess into a new long-dated bond maturing in 2055 (adding to your far-term runway).
2035: Your second rung matures. Again, you fund 2035–2036 spending from this maturity and reinvest the excess.
And so on. By 2050, your ladder has matured and paid for all 25 years of spending. At that point, you either rely on Social Security, pensions, and stock dividends, or you need to have built additional assets during retirement.
Inflation adjustment within the ladder
The example above assumes you know your exact spending stream. In reality, inflation will change your spending over time.
Conservative approach: Overestimate your spending by 1–2% annually within each rung. So instead of 50,000 dollars, assume 51,000 dollars per year. This buffer covers unexpected inflation without you having to rebuild the ladder.
Dynamic approach: Every 5 years, review your actual spending and inflation-adjusted projections. If inflation has been 3% per year instead of 2.5%, your ladder underfunds your later years. At that point, add new bonds or adjust your spending downward.
Most retirees use a hybrid: conservative overestimation initially (via higher coupon income or reinvestment into the ladder), with periodic reviews.
Mixing ladder rungs: government vs. corporate bonds
A retirement ladder does not have to be all government bonds (safe but lower yield) or all corporate bonds (higher yield but credit risk).
Typical allocation within a retirement ladder:
| Rung | Maturity | Allocation | Instrument |
|---|---|---|---|
| 1 | 2026–2030 | 260,000 | Treasury bonds (safest) |
| 2 | 2031–2035 | 305,000 | Investment-grade corporate bonds |
| 3 | 2036–2040 | 356,000 | Mix of corporates and Treasuries |
| 4 | 2041–2045 | 413,000 | Investment-grade corporates and municipals |
| 5 | 2046–2050 | 480,000 | Diversified corporates, some municipals if tax-favored |
Near-term rungs (2026–2030) are safest (Treasury, high-quality corporate) because you need the principal in 4 years and cannot tolerate a credit default. Longer-term rungs (2041–2050) can take more credit risk or diversification because you have 15–20 years for the issuer to recover from any temporary downgrade.
Longevity and extending the ladder
What if you live to 95 or 100? Or what if you want a hedge against outliving your assets?
Options:
- Build a longer ladder initially (to age 100). This requires more capital upfront but ensures coverage.
- Buy a deferred annuity at 80 to cover spending from 85–100. This is a late-life insurance product; you lump-sum a portion of your wealth to an insurance company, which guarantees income from age 85 onward.
- Keep stocks in the portfolio for growth beyond age 80. This assumes you have time to recover from any bear market late in life.
- Plan to adjust spending if the ladder runs out. Reduce discretionary spending and live on the remaining income stream (Social Security, pensions).
Most financial advisors recommend building a ladder to age 95 if you are healthy, and supplementing with a small deferred annuity or stock allocation beyond that age.
Tax efficiency of retirement ladders
In a tax-deferred account (401k, IRA, RRSP), the ladder generates no annual tax; you pay tax only on withdrawals.
In a taxable account:
- Bond coupons are taxed as ordinary income each year (unless municipal bonds, which are often federally tax-free).
- Reinvesting maturing principal does not trigger tax (it is a return of principal, not income).
- If you buy a bond at discount and it matures at par, the gain is taxed as ordinary income (amortized annually or all at maturity, depending on tax law).
Tax optimization for taxable retirement ladders:
- Place Treasuries and corporates in the taxable account (their income is already taxed).
- Place municipals in taxable accounts if you are in a high tax bracket (often 32% federal or higher).
- Place international bonds (which may be taxed as PFIC—passive foreign investment companies) in tax-deferred accounts if possible.
Comparing retirement ladder to balanced portfolio
| Approach | Income Certainty | Growth Potential | Complexity | Sequence Risk |
|---|---|---|---|---|
| Pure retirement ladder (bonds only) | Very high | Low | Medium | None; income comes from maturing bonds |
| Balanced 60-40 (stocks + bonds) | Moderate | Moderate | Low | High; if stocks crash early in retirement, you may need to sell stocks at losses |
| Ladder + dividend stocks | High for ladder portion | Moderate | Medium | Low; ladder provides income floor; stocks provide growth and inflation hedge |
Most retirees use a hybrid: a 15–20 year ladder for near-term income (covering ages 65–80), supplemented with dividend-paying stocks or a 60-40 portfolio for ages 80+ and for inflation protection.
Next
The mechanics of laddering for retirement assume you are holding bonds to maturity. The next article explores a more active approach: rolling down the curve, where you buy a longer-dated bond and sell it after it has aged a few years, capturing price gains.