Vendor due diligence checklist
- Checks outstanding
- 6
- Risk points from what this vendor touches
- 5
- Risk points from annual spend
- 2
- Checks this vendor needs
- 10
Nothing in these worksheets is a figure we found somewhere. Every number comes from the inputs you enter and the method stated on the page: completeness is the five onboarding items you tick, diligence is a baseline of three checks plus points for data access, site access, single-sourcing and spend, and the score is your own weights applied to your own ratings. The defaults are a worked example, not a recommendation and not a benchmark.
The figures above start from a worked example (6). Change any input and the answer updates as you type.
Download the Vendor due diligence checklist worked example (CSV)
Due diligence goes wrong in two directions and both are expensive. Run the same heavy checks on every supplier and the process is abandoned within a quarter; run the same light checks on every supplier and the one holding your customer data got the same scrutiny as the one selling you envelopes. This sheet sizes it. Enter the annual spend and answer three questions about what the vendor touches, and it returns the number of checks that vendor warrants, how many you have done, how many are outstanding, and the annual spend riding on them. On the worked example a data-handling, single-sourced supplier at $48,000 a year needs ten checks against a baseline of three; four are done, six are outstanding and $28,645 of spend is behind them.
Three checks for everybody, then points
Every supplier gets a baseline of three: it exists, you know who you are contracting with, and you have terms. On top of that, points for what it touches. Customer or employee data adds two, site access adds two, and being your only source adds three, because single-sourcing is the risk with no fallback.
Spend adds its own points
A point for every $25,000 a year, so a $48,000 supplier adds two and a $250,000 supplier adds ten. Spend is a proxy for how much it would hurt if this relationship failed, and it is the only input here you already know without thinking about it.
Outstanding checks, priced
Ten checks needed and four done leaves six outstanding, and dividing the annual spend across the required checks puts $28,645 behind them. That figure is a prompt for sequencing, not a loss estimate: it tells you which supplier's outstanding checks to do first when you have an afternoon.
Vendor due diligence checklist: common questions
What are the three baseline checks?
That the company exists and is who it says it is, that you know the legal entity you are contracting with, and that you have written terms. Everything beyond that is proportionate to what the vendor touches and what you pay it.
Why does single-sourcing add the most points?
Because it removes your options. A supplier you can replace in a week is a commercial problem when it fails; a supplier nobody else can substitute is an operational one, and that difference deserves more scrutiny before you are relying on it.
Is this a risk assessment?
No. It is a sizing tool that tells you how much diligence is proportionate and how much of it you have done. What your regulator, your insurer or your own customers require of your suppliers is a question for your advisers, and this sheet publishes no standard.
Venbix Pro
Keeping the record
The worksheet scores one vendor on one day. Pro remembers it: the supplier, its documents and their expiry dates, the contract and when notice is due, the onboarding stage it reached, and every scorecard you have ever given it.
- Download the pack or scorecard as a file you can send
- Send it to a supplier or an auditor without the Venbix watermark
- Come back to this vendor's sheet with the figures still in it
- Put your own logo on what suppliers and auditors see
- Take every vendor, document and contract out at once, as a file
- Send a supplier its onboarding request without leaving the record
- Not used by Venbix: nothing here takes a payment from your suppliers
- Match the vendor list against the suppliers your books already know
$49per month, whole team
Start Venbix Pro PricingVenbix Pro is $49 a month and renews on the same date each month at the same $49 until you cancel. There is no introductory rate, no minimum term and no automatic step up in price. If the price ever changes you keep the price you signed at.
Cite or embed this figure
Vendor due diligence checklist (Checks outstanding): 6, Venbix, worked example.
Cite as: "Vendor due diligence checklist, Venbix", updated 2026-09-04, https://venbix.com/tools/vendor-due-diligence-checklist/.