Enter Values

Important: Use same-maturity yields for valid comparison.
%
Current yield on nominal Treasury
%
Real yield on TIPS (expected real return if held to maturity)
%
Average annual CPI inflation you expect
years
Does not affect calculation
Breakeven Formula
Breakeven = Nominal Yield - Real Yield
Market-convention quoted breakeven (spread approximation)
Ryan O'Connell, CFA
Calculator by Ryan O'Connell, CFA

Calculation Results

Quoted Breakeven Inflation 2.50% Market-implied inflation compensation
Neutral
Expected Real Return on Nominal Treasury 2.00%
TIPS Advantage 0.00%

Your inflation expectation matches the breakeven rate.

Formula Breakdown

Decision Guide

Your Expectation vs Breakeven Recommendation
Your inflation > Breakeven + 0.05% TIPS Favored
Your inflation < Breakeven - 0.05% Nominals Favored
Within 0.05% of Breakeven Neutral
Model Assumptions
  • Uses market-convention quoted breakeven (spread approximation, not exact Fisher equation)
  • Requires same-maturity nominal Treasury and TIPS yields for valid comparison
  • Assumes hold-to-maturity strategy and pre-tax analysis
  • TIPS are indexed to CPI-U, which may differ from your personal inflation experience
  • Breakeven includes liquidity and inflation-risk premia beyond pure inflation expectations
  • Does not account for the TIPS deflation floor (principal protected at par)

For educational purposes. Not financial advice.

Understanding TIPS Breakeven Inflation

What is TIPS Breakeven Inflation?

TIPS breakeven inflation is the difference between a nominal Treasury yield and a TIPS (Treasury Inflation-Protected Securities) real yield of the same maturity. It represents the market-implied inflation compensation - the inflation rate at which an investor would be approximately indifferent between holding TIPS or nominal Treasuries.

Breakeven Inflation Formula
Breakeven = Nominal Yield - TIPS Real Yield
This is the market-convention "quoted breakeven" used by traders and analysts

TIPS vs Nominal Treasuries

TIPS

Inflation Protection
Principal adjusts with CPI-U. Real yield is guaranteed if held to maturity. Outperform if actual inflation exceeds breakeven.

Nominal Treasuries

Fixed Coupon
Known nominal return at purchase. Real return depends on actual inflation. Outperform if actual inflation is below breakeven.

Making the Decision

The decision between TIPS and nominal Treasuries depends on whether you expect inflation to be higher or lower than the market-implied breakeven:

  • If your expected inflation > breakeven: TIPS are favored because you expect more inflation protection than the market has priced in.
  • If your expected inflation < breakeven: Nominal Treasuries are favored because you don't need to pay for inflation protection you don't expect to use.
  • If expectations match: You're approximately indifferent (other factors like liquidity and taxes may tip the decision).
Important: This analysis requires using yields from the same maturity for both nominal Treasuries and TIPS. Comparing a 10-year nominal yield to a 5-year TIPS yield produces meaningless results.

Key Considerations

  • CPI-U linkage: TIPS are indexed to the Consumer Price Index for All Urban Consumers, which may differ from your personal inflation experience
  • Liquidity premium: TIPS typically trade with less liquidity than nominal Treasuries, which can affect breakeven levels
  • Tax treatment: TIPS inflation adjustments are taxed as income in the year they occur, even though you don't receive the cash until maturity
  • Deflation floor: TIPS principal is protected at par - you won't receive less than the original face value at maturity even in deflation
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Frequently Asked Questions

The TIPS breakeven inflation rate is the difference between a nominal Treasury yield and a TIPS real yield of the same maturity. It represents the market-implied inflation compensation and serves as a proxy for the inflation rate at which both investments would produce similar returns if held to maturity. This "quoted breakeven" is the market convention used by traders and analysts.

Compare your expected CPI inflation to the breakeven rate. If you expect inflation to exceed the breakeven rate, TIPS are favored. If you expect inflation below breakeven, nominal Treasuries are favored. This comparison assumes same-maturity bonds, pre-tax analysis, and a hold-to-maturity strategy. Small differences (within 0.05%) are not actionable - other factors should drive your decision.

TIPS real yields can be negative when demand for inflation protection is high or when monetary policy pushes down real rates. A negative real yield means investors accept a guaranteed loss of purchasing power relative to CPI-U if purchased at that yield and held to maturity. This was common during 2020-2022 when real yields were deeply negative, yet investors still bought TIPS for diversification and inflation hedging.

Breakeven inflation is the market-implied inflation compensation derived from Treasury prices. It includes not just inflation expectations but also liquidity premiums (TIPS are less liquid) and inflation-risk premiums (compensation for inflation uncertainty). Expected inflation is your personal forecast of future CPI. The TIPS advantage comes from the difference between your expectation and the market-implied breakeven.

Not necessarily. What matters is whether actual inflation exceeds the breakeven rate that was priced in when you purchased. If breakeven is already 3% and inflation turns out to be 3%, TIPS and nominals perform similarly. TIPS outperform only if realized inflation exceeds the breakeven rate. In high-inflation environments, breakevens are typically elevated too, so the relative value depends on whether you think inflation will exceed even those elevated expectations.

Limitations include: (1) requires same-maturity Treasury and TIPS yields for valid comparison, (2) TIPS are linked to CPI-U which may differ from your personal inflation experience or PCE, (3) ignores tax treatment differences (TIPS phantom income), (4) assumes hold-to-maturity strategy - mark-to-market performance can differ significantly, (5) breakeven includes time-varying liquidity and inflation-risk premia beyond pure expectations, (6) uses the standard spread approximation rather than exact Fisher equation (difference is typically less than 5 basis points).
Disclaimer

This calculator is for educational purposes only. It uses the market-convention quoted breakeven (spread approximation) and assumes same-maturity bonds with a hold-to-maturity strategy. Actual investment decisions should consider taxes, liquidity, personal inflation experience, and other factors. This tool should not be used as the sole basis for investment decisions. Consult a financial advisor for personalized advice.

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