5Y Breakeven Inflation

T5YIE is the 5-Year Breakeven Inflation Rate, computed daily by FRED as the spread between the 5-year nominal Treasury yield (DGS5) and the 5-year TIPS yield (DFII5). It represents the market-implied average inflation rate the bond market expects over the next five years. A reading of 2.58% means the market expects 2.58% average annual CPI inflation over the next five years on this priced expectation.

Why it matters: T5YIE is the cleanest market-priced inflation expectation at a horizon directly relevant to Fed policy. It sits between the more volatile near-term inflation expectations (1Y, 2Y) and the longer-term anchor of T10YIE (10Y breakeven) or the T5YIFR (5-year-5-year forward, the most-watched anchor for Fed credibility). The Fed monitors T5YIE and T5YIFR for signs of inflation-expectations un-anchoring; sustained moves above 3% historically force the Fed to talk hawkishly even with cooperative incoming data.

T5YIE is at 2.58% in April 2026, modestly above the Fed's 2% target and above the longer-term T10YIE at 2.40%. The 5Y-10Y inflation curve is therefore inverted by 18bp, signaling that markets expect higher inflation in the near-medium term (Iran-driven oil pressures, Trump tariffs) relative to longer-run anchored expectations. The 5Y-5Y forward (T5YIFR) is near 2.30%, well-anchored at the Fed's target.

This curve shape is consistent with cyclical inflation risk being priced in but the long-term Fed credibility holding. The April 29 Fed hold with hawkish majority (8-4 against cuts) supports the long-end credibility anchor. The risk is T5YIE breaking above 3% on sustained energy stress or tariff shock; the bull case for disinflation is T5YIE drifting back to 2.30-2.40% as Iran tensions ease and tariff effects fade. Watch the 5Y TIPS auction tails and the 5Y-5Y forward decomposition.

Modern T5YIE range: -0.78% in November 2008 (the deflationary scare during the GFC, when TIPS underperformed nominals on liquidity), 0.28% in April 2020 COVID liquidation, 3.59% in March 2022 (post-Russia-invasion energy spike), 2.58% in April 2026. The drivers are oil prices (most volatile, with WTI moves of $20+ producing 30-50bp T5YIE moves), Fed credibility (long-end anchor), and Treasury versus TIPS supply technicals (relative liquidity affects pricing).

First, T5YIE versus T10YIE spread. Inverted breakeven curves (5Y above 10Y) signal cyclical inflation risk; reversion to upward-sloping signals normalization.

Second, the 5Y-5Y forward (T5YIFR). The most-watched Fed-credibility gauge; sustained moves above 2.5% force hawkish Fed communication.

Third, oil prices and Trump tariff announcements. Both are direct drivers of near-term inflation expectations; WTI moves above $110 historically lift T5YIE by 25-50bp.