Your retirement bond portfolio is probably doing its job. The problem is inflation doesn't care. Fixed-income strategies are built for consistency, not defense. When prices rise steadily year after year, the predictable income those bonds generate buys a little less each time, and most investors holding standard Treasuries or corporate debt have no structural protection against that erosion.

How inflation hits home

Workers get a built-in buffer against inflation: salary adjustments. Retirees largely don't.

Social Security includes an annual Cost-of-Living Adjustment (COLA), but that only covers one income stream. For retirees who depend on bond income to cover daily expenses, rising prices quietly shrink what those payments actually cover.

The math is unambiguous. A movie ticket cost $2.89 in 1980. By 2025, that same ticket averaged $16.08. That's not a rounding error — it's five decades of purchasing power slowly walking out the door.

Rising inflation also pressures central banks to raise interest rates, per Forbes. When rates climb, the market value of existing bonds falls, hitting fixed-income investors from two directions at once.

What TIPS actually do

Treasury Inflation-Protected Securities (TIPS) are US government bonds with one structural difference from standard Treasuries: their principal automatically adjusts with the Consumer Price Index (CPI).

When CPI rises, the bond's principal rises with it. Interest payments, calculated on that adjusted principal, grow accordingly. It's not a workaround or an add-on — the inflation protection is baked into the instrument itself.

TIPS are issued with five-, 10-, and 30-year maturities, per the same Forbes report. That range gives investors flexibility to match duration to their income timeline.

The ladder structure

A bond ladder staggers maturities across multiple years, so a portion of the portfolio rolls over annually rather than all at once. That design smooths reinvestment risk and keeps income flowing on a predictable schedule.

The Northern Trust 2035 Inflation-Linked Distributing Ladder ETFTIPB

applies that structure to TIPS specifically. Each rung of the ladder holds TIPS maturing in a distinct calendar year, running from 2025 through 2035, per ETF Trends. Northern Trust's team populates each rung accordingly.

The structural twist that makes TIPB different from a standard ladder ETF: when a rung matures, the principal isn't reinvested into the next rung. It's returned to shareholders as a distribution. That annual return of principal creates an additional cash flow stream on top of regular interest income, giving retirees more spending flexibility per year.

Alex Tsepaev, chief strategy officer at B2Prime Group, puts the broader case plainly: build a portfolio with "shorter-maturity bonds, a bit of TIPS, commodities and gold, and ideally a share of real assets that generate income, adjusting exposures as inflation expectations change."

The emphasis on adjusting, not setting and forgetting, matters.

The real tradeoff

Holding individual bonds to maturity guarantees full principal repayment. Holding an ETF does not.

TIPB's net asset value declines over time as distributions are paid out to shareholders, per Northern Trust's own disclosures. Selling the ETF before the ladder runs its course could mean recovering less than the original investment.

Brokerage commissions also reduce total returns. For buy-and-hold investors who plan to stay in the fund through its 2035 endpoint, that friction is minimal. For those who might need to exit early, it's a real cost worth modeling.

Getting started

Pull up your current bond allocation and check whether any of it adjusts for inflation. Most standard bond funds don't.

TIPB trades on a US exchange like any ETF and is accessible through standard brokerage accounts with no special requirements. Adding a position is as simple as a single trade.

Pairing it with nominal bonds rather than replacing them entirely is the move most aligned with how inflation-protection actually works: as insurance, not the whole portfolio.

Inflation is patient. The portfolio should be too.