I-bonds vs TIPS yield calculator

Compare expected real return on I-bonds vs TIPS, accounting for fixed-rate component, inflation expectations, and federal tax treatment.

I-bond fixed rate %

Treasury sets fixed rate twice/year. Recent: 1.2-1.3%. Stays for the life of that bond.Expected annual inflation %

TIPS real yield (10yr) %

Look up 'DFII10' on FRED. Recent: 1.8-2.1% real.Federal marginal tax %

State marginal tax %

Both I-bonds and TIPS are exempt from state tax — kept here for federal-only context.Years held

Amount invested

I-bond total after tax

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