What is the answer to "Promise of payback" in the NYT Crossword?

The answer to the NYT Crossword clue "Promise of payback" is IOU (3 letters).

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NYT

Promise of payback NYT Crossword Clue

Down clue · from the September 27, 2026 puzzle

Stuck on “Promise of payback” from the New York Times Crossword? Here is the verified answer:

Answer

IOU

3 letters · Down · last seen September 27, 2026