Syntax

IRR(cashflow_amounts, [rate_guess])

Arguments

The printed syntax lists 2 argument(s), in order:

  • cashflow_amounts
  • ate_gues optional

“optional” marks an argument Google prints in square brackets; “repeatable” marks one Google prints with “…”.

Description from Google Docs Editors Help

“Calculates the internal rate of return on an investment based on a series of periodic cash flows.”

Google’s help article for IRR →

Source: Google Docs Editors Help, “Google Sheets function list” (support.google.com/docs/table/25273), record record 100 of 516, data fetched 28 September 2026. Data month: September 2026.