A PAYDEX score is Dun & Bradstreet's 1 to 100 trade-payment score, and 80 or higher typically signals on-time payments and access to better vendor terms. It reflects how reliably your business pays suppliers, not your personal credit history. This guide walks through how it is calculated, what the number ranges mean, how to check and monitor it, and the fastest ways to raise it.
TL;DR:
- Large invoices reported by key suppliers significantly impact your PAYDEX score more than smaller payments, so prioritizing their on-time reporting boosts your score faster.
- Achieving a PAYDEX score of 80 or above usually requires verified trade experiences from at least three vendors, with larger trade lines pushing the score upward.
- Correcting errors involves submitting disputes with supporting documentation directly to D&B or the reporting supplier, with the FTC requiring free, timely correction processes.
- Monitoring your PAYDEX regularly through D&B or other credit agencies helps catch score changes early and maintains your payment discipline.
- Building or repairing your PAYDEX score benefits from focusing on your biggest paying vendors first and requesting those vendors report your on-time payments to D&B.
Table of Contents
- What You Need Before You Can Have a PAYDEX Score
- How PAYDEX Calculation Weighs Your Invoices
- What Each PAYDEX Score Range Actually Means
- Where to Check Your PAYDEX Score and Keep Tabs on It
- Building a Plan to Raise Your PAYDEX Score
- Disputing Errors and Knowing Your Legal Rights
- Why PAYDEX Shows Up in Real Business Decisions
- How We Help Business Owners Build and Repair Credit
- What Owners Get Wrong About PAYDEX Timelines
- Ready to Build Stronger Business Credit?
- FAQ
- Sources
What You Need Before You Can Have a PAYDEX Score
A PAYDEX score only exists once Dun & Bradstreet has verified payment data to work with. It is a dollar-weighted figure built from trade experiences, meaning the invoices your suppliers report to D&B, not from bank balances or revenue. Before anything gets calculated, a business needs a few basic pieces in place.
- A D-U-N-S Number, the unique identifier D&B assigns to your business.
- Payment experiences from multiple distinct reporters, commonly three or more vendors.
- Trade accounts that actually report to D&B, since not every supplier does.
Without enough reporting history, your profile shows as "UN" for unavailable or undetermined. That is not a bad score, it is no score yet, and the fix is simply getting more qualifying suppliers to report your payment history.
How PAYDEX Calculation Weighs Your Invoices
PAYDEX is not a simple average of how often you pay on time. It is dollar-weighted, which means a $50,000 invoice paid two weeks late affects your score far more than a $500 invoice paid on time. D&B pulls payment experiences directly from the suppliers, lenders, and other businesses that extend you credit and choose to report.
- Payment experiences come from vendors, landlords, and lenders who voluntarily submit data to D&B.
- Larger invoices carry more weight than smaller ones because of dollar weighting.
- D&B typically considers recent trade experiences rather than your entire credit history.
The dollar-weighted structure means a handful of high-value suppliers can move your score faster than dozens of small ones. Large invoices have outsized influence, so getting your biggest vendors to report accurate, on-time payments is the single most efficient lever available, according to D&B's own factsheet.
What Each PAYDEX Score Range Actually Means
Once you understand the bands, the target becomes obvious. According to D&B's scoring breakdown, a score of 100 means you pay roughly 30 days ahead of terms, 90 means you pay early enough to earn discounts, and 80 means you pay exactly on time. Scores drop from there as payment lateness increases.
- 90 to 100: payments made ahead of terms, often unlocking early-payment discounts.
- 80: prompt, on-time payment, the threshold most lenders and suppliers look for.
- 70 down to 50: increasingly late, from 15 days beyond terms to 30 days beyond terms.
- Below 50 or "UN": patterns of delinquency or no score available, both of which raise red flags for underwriters.
An 80 is the practical floor for favorable net-30 or net-60 terms, while anything in the 90s can translate into real discounts and stronger negotiating leverage with suppliers.
Where to Check Your PAYDEX Score and Keep Tabs on It
Monitoring your score takes less effort than most owners expect, but it helps to prepare before you log in anywhere.
- Gather your vendor names, invoice dates, and proof of payment, since you may need to reference specific trade lines.
- Use D&B's own credit products for the most direct and current PAYDEX figure, keeping in mind that detailed reports often carry a cost while limited snapshots are free.
- Cross-check your profile through other small-business credit reporting agencies, since business credit reporting is fragmented across multiple bureaus.
- Set up ongoing monitoring or alerts so you notice score changes or new trade lines as they post, rather than discovering a problem when a loan application gets flagged.
Building a Plan to Raise Your PAYDEX Score
Improving PAYDEX is a sequencing problem more than a willpower problem. Here is the order that tends to produce the fastest movement.
- Identify your highest-dollar suppliers first, since their reports carry the most weight in a dollar-weighted score.
- Pay those invoices on time or, better, ahead of terms to push toward the 90 to 100 range.
- Ask your major suppliers directly whether they report to D&B, and request that they start if they do not, since reporting is not automatic for every vendor.
- Open additional trade accounts or business credit cards that are known to report, building a wider base of verified tradelines.
- Keep thorough records of invoice dates and payment confirmations, since D&B verifies submitted trade references before accepting them.
Pro Tip: Focus your outreach on the two or three suppliers with the largest invoice totals before chasing smaller vendors, since dollar-weighting means they will move your score the most.
Expect a lag between action and result. New trade experiences take time to be submitted, verified, and reflected, so plan for a window of a few reporting cycles rather than an overnight jump. Readers wanting a deeper look at payment timing can review our payment history guide for additional recordkeeping habits that support this process.
Disputing Errors and Knowing Your Legal Rights
Inaccurate trade experiences do happen, and you have a formal path to fix them. You can dispute an error either with D&B directly or with the supplier that originally reported it.
- Submit a written dispute with supporting evidence such as invoices, payment confirmations, or correspondence.
- Follow up on a defined timeline rather than assuming the correction happened automatically.
- Keep copies of everything you send, since disputes sometimes require a second round.
Under a 2022 FTC order against Dun & Bradstreet, D&B must provide a free dispute process, conduct a reasonable reinvestigation, and correct or delete information it cannot verify within specified timeframes. That order gives you real leverage: if a reinvestigation stalls, you can reference the order's requirements when following up. The FTC's general guidance on disputing credit report errors confirms disputes should be documented in writing, and corrections must be made free of charge. For a structured walkthrough, see our guide to disputing credit report errors.
Why PAYDEX Shows Up in Real Business Decisions
Your PAYDEX score is not an abstract number sitting in a database. Suppliers check it before extending net terms, lenders reference it during underwriting, and some landlords or insurers factor it into lease and premium decisions.
- Suppliers may offer better net-30 or net-60 terms to businesses with scores of 80 or above.
- Lenders often weigh PAYDEX alongside personal credit when setting interest rates on business loans.
- A strong score can open doors to partnership or vendor relationships that a thin or unavailable credit file closes off.
Treating PAYDEX monitoring as part of routine financial hygiene, the same way you review bank statements, keeps small problems from becoming financing roadblocks later. Our piece on business credit card utilization covers a related factor worth watching alongside PAYDEX.
How We Help Business Owners Build and Repair Credit
We work with business owners who need help establishing tradelines, correcting inaccurate trade experiences, or preparing a credit profile ahead of a financing deadline. Our business credit building service focuses on establishing reporting relationships, while our credit repair services use SmartCredit-powered monitoring to track changes across personal and business profiles.
- We help identify which existing accounts could be reporting but currently are not.
- We assist with documenting and submitting disputes when trade data looks inaccurate.
- We support clients juggling multiple open disputes or an approaching loan application deadline.
Managed help tends to matter most when disputes multiply or a financing window is closing fast.
What Owners Get Wrong About PAYDEX Timelines
The most common mistake we see is assuming every vendor reports automatically, then wondering why a score sits at "UN" despite months of on-time payments. The second is focusing energy on small invoices while a large, slow-paid one quietly drags the score down. Expect real movement over several reporting cycles, not days, and pair payment discipline with active reporting requests and dispute follow-up for the fastest results.
— Danny
Ready to Build Stronger Business Credit?
If your PAYDEX score shows "UN" or sits below the 80 mark you need for better terms, we can help you map out which suppliers to approach, which trade lines to establish, and which disputes to file first.
Our business credit building service works alongside our financing matching options, so once your profile strengthens, you are positioned to apply for the business loan, line of credit, or SBA loan that fits your plans. For owners who prefer to manage their own cash flow projections while rebuilding credit, Frac CFO's cash flow forecasting tools pair well with this process. Reach out through our business credit page to get started.
This article is general information, not a substitute for advice from a qualified financial advisor. Consult a qualified financial professional about your own circumstances before acting on anything here.
FAQ
What is a PAYDEX score?
A PAYDEX score is Dun & Bradstreet's 1 to 100 measure of how reliably a business pays its trade suppliers. It is dollar-weighted, so larger invoices influence the result more than smaller ones, and a score of 80 or above typically signals on-time payment.
How do I get my PAYDEX score?
You need a D-U-N-S Number and payment experiences reported by multiple distinct suppliers before D&B can generate a score. Until enough vendors report, your profile may show as unavailable rather than carrying a low number.
What is a good Dun & Bradstreet score?
A PAYDEX score of 80 is considered prompt and is the common benchmark lenders and suppliers look for when extending net-30 or net-60 terms. Scores of 90 to 100 reflect payments made ahead of terms and can unlock early-payment discounts.
How do I dispute an error on my PAYDEX report?
Submit a written dispute with supporting documents such as invoices or payment records to D&B or the reporting supplier. Under a 2022 FTC order, D&B must offer a free dispute process and correct or delete information it cannot verify within set timeframes.
Can Pioneer Credit Solution help improve my PAYDEX score?
Our business credit building service helps establish reporting tradelines, and our credit repair work supports documenting and submitting disputes for inaccurate trade data. Managed help is most useful when you are juggling several disputes at once or facing a financing deadline.
Sources
- FTC press release on Dun & Bradstreet order
- 5 ways to enhance and power your business credit profile — SBA
- Disputing errors on your credit reports — FTC consumer advice