A draft above its approved baseline
USD 5,000 quote plus USD 500 added and USD 200 reduced gives USD 5,300 expected. A USD 5,400 draft is USD 100 above that reviewed baseline.
Project billing
Free Quote to Invoice Variance Checker
Check whether a draft matches its accepted pricing baseline and documented changes. A zero amount difference still needs line, scope and approval review; the arithmetic alone cannot validate the invoice.
What you can do here
Compare a draft service subtotal with an accepted quote plus approved additions and reductions, showing a signed unexplained difference.
Built for real invoice workflows
Resolve quote and scope discrepancies before releasing the invoice draft.
Preparing your calculator with today’s date…
Calculation notes
How the result is calculated
Reviewed expected subtotal = accepted quote + approved additions − approved reductions. Reductions must fit within quote plus additions. Signed draft variance = draft subtotal − expected subtotal. Use the same complete service scope and before-tax basis. If billing only a stage, establish that stage's accepted baseline separately before comparing.
Formulas and examples reviewed October 2, 2026. Illustrative figures; no tax or contractual determination.
A matching amount with wrong content
A USD 5,300 draft gives zero variance, but an omitted USD 200 item and unrelated USD 200 addition could still cancel out. Match service lines and change IDs as well.
Questions about this calculation
Does a positive difference authorize more billing?
No. Obtain the actual scope and price approval or correct the draft. The difference is a review item.
Can an unaccepted quote be the baseline?
Do not describe it as accepted. Confirm the authorized price and document version before applying this comparison.
How to use it
1
Enter the accepted quote subtotal and approved additions and reductions.
2
Enter the draft subtotal on the same scope, currency and tax basis.
3
Investigate the signed difference and verify each line against the actual authority.
Why it helps
Keep accepted price and approved changes visible.
Identify both draft excess and shortfall.
Avoid treating an unapproved difference as a billable scope change.
Next step
From free tool to live invoice workflow.
Use the result when creating your invoice in InvoiceAgent. Planner setup links carry the settings they describe into a draft. Review your dates, amounts, PDF, and reminder settings before scheduling.
Related workflows
Move from the quick answer into the rest of the invoice system.
Match the draft to the baseline
Match the draft to the baseline
Record approved changes and line-level evidence.
Review quote authority and scope
Review quote authority and scope
Keep the accepted version and draft basis consistent.
Invoice templates
Invoice templates
Use the result inside invoice formats that are ready for clients and easier to automate.
Knowledge base
Knowledge base
Review the billing concepts behind the numbers before they go onto a live invoice.
Profession pages
Profession pages
See how freelancers, consultants, and agencies apply the same calculator output in different workflows.