Can ChatGPT check my quote for mistakes?

Yes. It can recalculate totals and compare the quote with a price list, scope and approved terms that you provide. Check every finding against the source documents before sending it.

Can AI check if my quote total is correct?

Yes, if the line items, quantities, discounts, VAT and charges are supplied clearly. Recalculate the flagged figures in your spreadsheet or calculator because a model can reproduce an error from incomplete or badly formatted input.

Can AI check the VAT on my customer quote?

It can check whether the VAT figures are arithmetically consistent with the rate shown. It cannot decide whether your business has applied the legally correct VAT treatment, so ask an accountant or tax adviser about a serious or uncertain case. This is not professional advice.

Is it safe to send a quote after AI checks it?

Only after you have checked the result against the latest approved price list, scope and terms. Your business remains responsible for errors, and AI cannot approve ambiguous commercial commitments or contractual wording.

YES

As of 13 August 2026, AI can check your customer quote for errors.

Most people should hand this to a purpose-built tool.

Can you do it?

5 minutesto a draft.

30 minutesto something you’d act on.

Cost, all in£0

Skill neededchat-fluent

Who has to check ityou

What the alternative costsNo comparable quote-checking alternative price is provided in the supplied tool data.

If this goes wrong: you send an incorrect price, scope or term and have to correct it with the customer or absorb the commercial loss.

What to actually do

Use a tool built for this
The route this page recommends
One pick for this task
Copy.ai
Copy.ai supports structured go-to-market content workflows and can help organise a quote review, but it is not a dedicated quote validator.

Do it yourself

Second choice

A chat interface, chat-fluent skill, and roughly 30 minutes until you can act on the result.

How to actually do it

Open the quote you plan to send and copy its full text, including line items, quantities, prices, discounts, VAT, totals, dates and terms.
Open the current price list, order notes or approved proposal and gather the agreed products, quantities, prices, delivery charges and scope.
Gather the approved payment terms, quote validity period and any customer-specific discount or contract conditions.
Paste the prompt into a chatbot, replace each bracketed slot with the relevant text, and ask it to run the complete comparison.
Recalculate every flagged total in your spreadsheet or calculator and compare each flagged price, quantity and term with the current source document.
Correct only findings supported by the source documents, then compare the final quote against the approved scope and send it through your normal approval process.

Prompt

Check the customer quote below against the supplied source information. Do not rewrite or approve the quote until you have checked it.

Tasks:
1. Recalculate every line total, subtotal, discount, delivery charge and grand total.
2. Check that the VAT rate, VAT amount and total including VAT are mathematically consistent, but do not decide whether the VAT treatment is legally correct.
3. Compare product names, quantities, units, prices, discounts, delivery details, payment terms, dates, quote validity and customer details against the source information.
4. Identify missing, duplicated, contradictory or ambiguous information.
5. Do not invent corrections. If a source value is missing or conflicts with another source, mark it as unresolved.
6. Separate findings into definite error, possible issue and no issue found.
7. For every finding, quote the relevant text or figures, show the calculation or source comparison, and state the exact correction needed only where the source supports it.
8. End with a short list of checks I must complete myself before sending the quote.

Customer quote:
[PASTE THE FULL QUOTE HERE]

Source price list or agreed prices:
[PASTE THE CURRENT PRICE LIST OR AGREED PRICES HERE]

Scope, quantities and delivery information:
[PASTE THE AGREED SCOPE, QUANTITIES AND DELIVERY DETAILS HERE]

Approved payment terms and other conditions:
[PASTE THE APPROVED TERMS HERE]

Use pounds sterling and UK spelling. Treat the supplied documents as the only source of truth.

Open it prefilled in ChatGPT or Claude, or copy it into Gemini, which takes no prefill link.

Hand it to a person
The distant third
A person who owns the outcome does this end to end, worth it when the failure is dear.

What it gets wrong

AI cannot know whether the price list or scope you supplied is the latest approved version.
AI cannot decide whether an ambiguous promise or concession is commercially acceptable.
AI cannot confirm that VAT treatment, contractual wording or industry-specific terms are legally correct.
AI can miss errors in scanned, badly formatted or incomplete documents.
Your business still carries the consequences of sending the wrong quote.

Even on a YES, the friction has a name: stakes of error and judgement under ambiguity.

How we scored this

Five axes, each scored nought to two by hand: ten means AI carries the task cleanly, and the thresholds that turn a total into YES, PARTLY or NO are published in the methodology. Each axis name links to its definition.

Axis	Score (0–2)
Output	2
Inputs	2
Verification	2
Liability	1
Effort delta	2
Total	9 / 10

The methodology and its thresholds are published in full.

FAQ

Can ChatGPT check my quote for mistakes?: Yes. It can recalculate totals and compare the quote with a price list, scope and approved terms that you provide. Check every finding against the source documents before sending it.
Can AI check if my quote total is correct?: Yes, if the line items, quantities, discounts, VAT and charges are supplied clearly. Recalculate the flagged figures in your spreadsheet or calculator because a model can reproduce an error from incomplete or badly formatted input.
Can AI check the VAT on my customer quote?: It can check whether the VAT figures are arithmetically consistent with the rate shown. It cannot decide whether your business has applied the legally correct VAT treatment, so ask an accountant or tax adviser about a serious or uncertain case. This is not professional advice.
Is it safe to send a quote after AI checks it?: Only after you have checked the result against the latest approved price list, scope and terms. Your business remains responsible for errors, and AI cannot approve ambiguous commercial commitments or contractual wording.

Nearby answers

All Proposals & quotes rulings

Assessed by gpt-5.6-luna (gpt-5.6-luna) on 2026-08-13, second-checked by an independent model. Wrong somewhere? Email [email protected] and it gets re-checked.

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