Understanding AI Confidence Scores on Receipts
Learn what the 0–100 confidence score means on the AskBiz receipt review screen, how each colour band is defined, and which situations call for manual verification.
Key Takeaways
- Confidence scores range from 0 to 100 and reflect how certain the AI is about each individual field.
- Green means high confidence (above 80), amber means check carefully (50 to 80), red means verify manually (below 50).
- Low confidence on the Amount field is the most important to correct — an incorrect amount affects burn rate calculations.
What the Score Represents
After Claude AI processes your receipt image, it assigns a confidence score to each of the five extracted fields: Vendor, Date, Amount, Category, and Notes. The score is a number from 0 to 100. A score of 95 means the AI is highly certain — it found a clear, unambiguous value. A score of 40 means the AI found something plausible but is uncertain, perhaps because the text was faint, the format was unusual, or multiple candidate values were present on the image. The score is field-specific: the same receipt could have a confidence of 92 on Vendor but only 48 on Date if the date was printed in a small or unusual font.
Green, Amber, and Red Colour Bands
AskBiz translates the numerical confidence score into three visual colour bands. Green covers scores from 81 to 100 and indicates the AI is very confident in the extracted value. A quick glance to confirm it looks right is all that is needed. Amber covers scores from 50 to 80. These fields are plausible but uncertain enough that you should read the value carefully and compare it to the receipt image. Red covers scores from 0 to 49. A red indicator means the AI struggled significantly with this field and you should always manually verify or re-enter the value. Do not confirm an expense with a red Amount score without checking the total on the original receipt.
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Start for free →Which Fields Matter Most
Not all fields carry equal financial weight. The Amount field is the most critical because an incorrect amount directly affects your burn rate and forecast calculations. If the AI read 1250 when the receipt says 12.50, the error is a factor of one hundred. Always verify the Amount field regardless of confidence colour. The Date field is the second most important, because expenses logged on the wrong date will distort your daily and monthly spending trends. The Vendor and Category fields matter for reporting accuracy but a miscategorised expense does not affect the total spend figures. The Notes field is entirely optional and errors there have no financial impact.
Why Scores Drop
Several receipt and image conditions cause confidence scores to drop. A blurry or out-of-focus photo is the most common cause of across-the-board low scores. Poor lighting creates low contrast between ink and paper, making characters ambiguous. Receipts with staining, fading, or thermal degradation present characters that look similar — for example an 8 may be confused with a 3. Folded or crumpled receipts can cause physical distortion that changes the apparent shape of letters. Receipts with non-standard layouts — such as handwritten notes, unusual fonts, or multi-column formats — also produce lower scores because the AI encounters less familiar patterns.
What to Do With Low Confidence Fields
When you see an amber or red confidence indicator, follow these steps. First, tap the thumbnail image at the top of the review screen to expand the receipt and locate the relevant field. Second, read the original value directly from the receipt. Third, tap the low-confidence field on the review screen and type in the correct value. Fourth, after correcting all flagged fields, tap Confirm. If the image is too poor quality to read even when expanded, it is better to discard the scan and add the expense manually using the Add Expense form rather than guessing.