---
title: Duplicate detection
slug: duplicate-detection
flag: duplicate_detection
category: receipts
plan: All plans
status: live
question: "Will Stacko catch it if I add the same receipt twice?"
audience: [user, agent]
boundaries: "Stacko flags likely duplicates for your review. It won't delete anything without you."
related: [upload-a-receipt, bulk-upload]
updated: 2026-06-21
review_by: 2026-09-21
---

# Duplicate detection

When you add a receipt that looks like one you already have, Stacko warns you before it's saved.

**How it helps**

Keeps your totals honest. The same expense counted twice throws off your records and your tax-time numbers — Stacko flags the overlap so you can skip it or keep it on purpose.

**Using it**

- Add receipts as usual. If one looks similar to an existing record, Stacko shows a duplicate warning.
- You decide: skip it, or save it anyway if it's genuinely a separate expense.
- Already have duplicates? Use **Delete duplicates** to review likely matches and clear them in one place.

**Good to know**

- Available on all plans.
- Stacko only *flags* likely duplicates — nothing is deleted without your confirmation.