Document checker

Proposal vs invoice, line by line

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Document Checker
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Module · Document checker

Catch line-item drift before you pay

ObraFinal cross-checks the signed proposal against the contractor's invoice. Increases, missing items and undisclosed extras are flagged with money attached.

6 discrepancies
Proposal total
424 mil €
P-2026-018
Invoice total
457 mil €
F-2026-074
Variance
33 mil €
8% over proposal
Negotiation lever
41 mil €
Total flagged amount
AIAI summary
6 flagged

Invoice exceeds the signed proposal by 32.500 € (8%). 2 new line items appear on the invoice that were never quoted. Two further items rose materially above their original price.

Proposal total
424.000 €
Invoice total
456.500 €
Flagged amount
40.900 €
Highlights
  • Waterproofing increased €9,800 (+23%) — supplier change not approved in writing.
  • Crane rental (€6,400) was never in the proposal — added as an extra without sign-off.
  • Scaffolding +€3,200 (+18%) — duration extension not flagged before invoicing.
  • Disposal fee (€2,900) added; original scope says contractor disposes at own cost.
Line-by-line

Comparison

Each row is the same item on both documents. Amber = increase, red = new extra, blue = missing from invoice.

AI matched 100% of items
Signed proposal
P-2026-018
Dated 2026-02-14
Contractor invoice
F-2026-074
Dated 2026-05-19
  • Demolition & site prep
    28.000 €
    28.000 €
    Matched
  • Structural reinforcement
    96.000 €
    96.000 €
    Matched
  • Roof structure & tiles
    Material upgrade not approved in writing.
    154.000 €
    168.400 €
    +14.400 €
    Increased
  • Waterproofing membrane
    Supplier switched without owner approval. Premium product.
    42.000 €
    51.800 €
    +9800 €
    Increased
  • Electrical pre-installation
    78.000 €
    78.000 €
    Matched
  • Crane rental — extras
    Never quoted. Added as line item on invoice only.
    —
    6400 €
    +6400 €
    New extra
  • Scaffolding rental
    Duration extended +14 days. No change order on file.
    18.000 €
    21.200 €
    +3200 €
    Increased
  • Site cleanup
    Quoted as included; missing from invoice. Verify before signing off.
    4200 €
    —
    Missing
  • Permits & licenses
    3800 €
    3800 €
    Matched
  • Waste disposal fee
    Scope says contractor disposes at own cost. New extra.
    —
    2900 €
    +2900 €
    New extra
Totals424.000 €456.500 €Delta 32.500 €
Next

Approve, dispute, or send back

Approve clean items, dispute the flagged ones, or push the entire invoice back to the contractor with the discrepancy report attached.

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