Purchasing Guides / Financial Model Checks

Financial Model Checks

A purchasing guide to buying a workflow that checks your financial model for broken formulas, mismatched figures and unsupported assumptions before review.

Yearly running cost

Assuming 1,200 models a year

By hand: $54K / year; 900 hours of work
Subscription: Quote needed
This workflow: $20 / year; Machine usage only; setup, hosting and review are extra.

How should it receive your financial model?

Find formula issues, mismatched figures and unsupported assumptions before your analyst signs off.

One model includes up to 5,000 populated cells and 20 agreed model checks.

Upload my modelsCheck a workbook before analyst review$1,152 – 3,240 setupConnect my SharePoint folderCheck saved models in my existing process$1,512 – 4,320 setup

Your analyst reviews every model. No automatic formula changes, investment recommendations, trades, source-file overwrites or external report sending.

What is included

Apply the agreed checks to versioned workbook copies. Show cell-level findings, calculation evidence and unresolved areas; do not change the source model.

Start with ordinary unencrypted Excel workbooks and saved calculation results. Add an approved folder connection for repeat reviews. Macros, live feeds and full model construction are outside the starting scope.

Workbooks per review: up to 1 workbook.

Worksheets per workbook: up to 12 worksheets.

Formula cells per workbook: up to 2,000 formula cells.

Compressed workbook size: up to 10 MiB.

Monetary calculation tolerance: up to 1 cent.

Percentage calculation tolerance: up to 1 basis point.

How reliably should it find model issues?

Find real model issues, minimise false flags and show exactly what was checked.

StandardFind the agreed issues and show cell evidence, with unknown results left for analyst review.Model issues found: ≥95%Correct issue flags: ≥95%IncludedStrictAdd more difficult models, independent verification and checks for misleading assumptions and links.Model issues found: ≥98%Correct issue flags: ≥98%Setup +$288 – 720My own targetsAgree more complex workbooks, formula handling and financial checks with your provider.Quote separately

How these standards are measured

Use unseen financial models with independently labelled issues and correct cases. Check missed issues, false flags, calculations and exact cell evidence. Unsupported or stale results stay unresolved, not passed.

Targets for your selected standard
What is checked	Target
Model issues foundFlagged true issues divided by all labelled in-scope issues. Keep missed and deferred issues in the denominator. An unusual formula or hardcoded value is not automatically an error.	≥95%
Correct issue flagsConfirmed issues divided by all proposed issue flags. Fix the rule definitions before testing; legitimate exceptions and intentional modelling choices must not become invented errors.	≥95%
Checked financial arithmeticCompare every agreed numeric check with an independently computed reference under the same units, periods and rounding. Missing or unverified results cannot pass as correct.	≥100%
Valid cell evidenceEvery finding resolves to the exact workbook version, sheet and cell with the rule, formula or calculation needed to verify it.	≥100%
Unresolved checks shownShow unsupported formulas, missing external sources, stale or absent saved results and inaccessible inputs. A partial review must not be described as a clean whole-workbook audit.	≥100%

These are proposed pilot targets, not a full model audit or proof that an investment is sound. Analysts review every model and resolve unsupported areas.

How quickly do you need each model checked?

Choose how soon the findings should be ready for your analyst.

Within 3 minutesIncludedWithin 90 secondsSetup +$72 – 360Within 45 secondsSetup +$216 – 600

Timing details

Time isolated parsing, agreed checks, evidence, model explanations, queues, retries and stored findings. Buyer-side workbook recalculation and analyst sign-off are separate.

The target applies to at least 95% of agreed test runs, with 2 in progress at a time.

How much do you want to spend per model?

Choose the machine budget for checking the model and explaining its findings.

Up to $0.50IncludedUp to $0.30Setup +$72 – 360Up to $0.15Setup +$216 – 600

Cost details

Includes local parsing, deterministic checks, model explanations, retries and shared hosting at the reference workload. Finance software, data subscriptions and analyst review are separate.

Reference machine cost: $0.22 – 0.42 per model at 100 models a month. The selected cap is a target to test, not a replacement for this estimate.

Where do you want it to run?

Run in your cloud or on your machine. Keep checks local; send only approved extracts to an external model for explanations.

Run it onAI model access

Data and access details

Runs in an account you control with isolated parsing and a review log.

Use only authorised formula and finding extracts for explanations. Checks and financial arithmetic remain local.

Do not send confidential deal data without permission. Private mode uses local files and templated explanations; it cannot read a live SharePoint folder. Missing calculation results need analyst attention.

How do you want to use it?

Review the findings on a web page, ask your own agent or use a dedicated model-review agent.

A model review pageUpload a workbook and inspect findings beside the relevant sheet and cell.IncludedMy existing AI agentAsk your agent to check a model and return cell-level evidence.Setup +$72 – 240A dedicated review agentUse a separate agent to organise model checks and unresolved findings.Setup +$144 – 480

Anything else your provider should know?

Optional. Your choices are included automatically.

Models per monthYour setup budget (USD)

Your models and review rules

Common questions

When are existing tools enough?

Use Excel formula auditing or your current finance platform if it already handles your checks. Buy a workflow for repeat firm-specific rules, cell evidence or a controlled private review process.

Will it fix my model automatically?

It prepares findings for your analyst. It does not change source formulas or assumptions, approve the model or make an investment decision.

Can it check any Excel workbook?

Start with ordinary unencrypted workbooks and agreed checks. Macros, live data feeds, complex array formulas and missing calculation results need separate handling or remain unresolved.

Does a clean report prove the model is right?

No. It covers the agreed checks only. Your analyst still assesses assumptions, unsupported areas and whether the model is suitable for the decision.