Picture this: your business has been profitable for two years, revenue is climbing, and you finally apply for a $50,000 line of credit to fund your next growth spurt. The lender declines you — not because your numbers are bad, but because your business is, as far as the credit system is concerned, invisible. No payment history. No tradelines. No score worth underwriting. Meanwhile a competitor with thinner margins sails through approval because they spent eighteen months building a paper trail you never knew you needed.
That paper trail is your business credit profile, and unlike personal credit, there is no single number that defines it. Three bureaus and a bank-focused scoring model each grade you differently, on different scales, from different data. This guide explains what each score actually measures, what counts as "good" on each scale, and the exact sequence that takes you from a blank file to a fundable business.
Your Business Has More Than One Credit Score
The first surprise for most owners is that "your business credit score" is plural. Dun & Bradstreet, Experian, and Equifax each maintain a business file on your company, and each builds its own score from its own data using its own model. On top of that, FICO sells a separate score — the Small Business Scoring Service, or SBSS — that blends your business data with your personal credit and is the gatekeeper for most SBA lending.
That is why the same company can look excellent on one report and mediocre on another. A supplier that reports to Dun & Bradstreet but not to Experian builds your Paydex score and does nothing for your Intelliscore. A tax lien filed in your county shows up wherever public-records data flows, but a glowing payment history with one vendor only travels as far as that vendor reports it. You cannot raise "your score" — you raise each score by feeding its model what it wants to see.
The Three Scores Side by Side
Before diving into each model, here is the map most owners wish someone had handed them on day one.
| Score | Scale | Generally considered good | What it measures | Who leans on it |
|---|---|---|---|---|
| D&B Paydex | 1–100 | 80 or above (on time); 90+ (early) | How fast you pay suppliers | Vendors, landlords, partners |
| Experian Intelliscore Plus | 1–100 | 76 or above (low risk) | Predicted risk of serious delinquency | Lenders, suppliers |
| FICO SBSS | 0–300 | 155+ minimum for SBA loans; 160–165+ preferred | Blended business + personal risk | Banks, SBA lenders |
| Equifax Business (bonus) | Payment Index 1–100; risk scores vary | 90+ payment index; higher is better | Payment habits + credit risk | Lenders, telecoms, utilities |
Two things jump out. First, the scales do not match: an 80 is a triumph on Paydex and a disaster on SBSS. Never compare the raw numbers across models. Second, only SBSS formally pulls in your personal credit — which surprises owners who assumed incorporating walled off their personal history. It did not, at least not for bank lending.
D&B Paydex: The Payment-Speed Score
The Paydex score is the simplest model to understand and the most actionable to improve. On a 1–100 scale, it answers one question above all: how quickly do you pay your suppliers relative to terms?
The rough translation: 80 means you pay on time, as agreed. Scores above 80 mean you pay early — 90 reflects roughly 20 days early, and 100 reflects payment well ahead of terms. Below 80, you are paying late, and the damage accelerates fast: paying 30 days late can drop you into the 60s, and 60 or more days late lands you under 50. A single sloppy quarter can undo a year of careful payments.
Three practical facts about Paydex that most guides bury:
You need tradelines to have a score at all. Dun & Bradstreet typically wants at least two or three reported payment experiences before it generates a Paydex score. A brand-new company with one vendor account may have a file but no score — which reads to a credit manager almost the same as a bad one.
It is a weighted average, so large invoices move it more. Paying a $20,000 supplier invoice two weeks early helps more than paying a $200 office-supply bill a month early. When cash is tight, prioritize the big tradelines first — they carry the most weight in the average.
Early payment is the only widely available way to score above 80. On-time payment caps you at 80. If a vendor offers net-30 terms and you consistently pay on day 10, Paydex notices and rewards you. This is the rare corner of finance where leaving money in your account longer actively costs you points.
To get scored, you need a D-U-N-S number — Dun & Bradstreet's free nine-digit business identifier. Registration costs nothing, and many lenders, landlords, and government buyers require one before they will even open your file.
Experian Intelliscore Plus: The Risk Forecast
Where Paydex is a rearview mirror on payment speed, Experian's Intelliscore Plus is a forecast. Scored 1–100, with 76 and above generally considered low risk, it predicts the likelihood that your business will become seriously delinquent — typically 90 or more days past due — in the coming year. Lenders use it the way they use a weather report: not to judge your past, but to price your future.
The model weighs more ingredients than Paydex:
- Payment history and trends. Not just whether you pay on time, but whether your habits are improving or deteriorating. A business sliding from 10 days early to 5 days late quarter after quarter scores worse than one steadily paying on day 29.
- Credit utilization. Maxed-out business credit lines signal distress even when every payment lands on time. Keeping utilization comfortably under 30 percent helps here exactly as it does on personal credit.
- Collections, liens, judgments, and bankruptcies. Public records and collection accounts hit hard. A single collection can outweigh months of on-time payments.
- Company background. Time in business, industry risk, and business size all feed the model. A six-month-old company in a volatile industry starts from a tougher baseline than a ten-year-old one — another reason building early matters.
The actionable difference from Paydex: Experian punishes deterioration and rewards stability across more dimensions. Paying every bill on time but running your cards at 95 percent utilization can still leave your Intelliscore stuck in the moderate-risk band. The fix is balance-sheet hygiene, not just calendar discipline.
FICO SBSS: The Score That Decides SBA Loans
The FICO Small Business Scoring Service is the score most owners have never heard of and most banks quietly use. It runs 0–300 and blends business credit data with your personal credit history, business financials, and application details into one number. If you apply for an SBA 7(a) loan, your lender almost certainly pulls it.
The thresholds that matter: the SBA's own prescreen floor sits around 140–155 depending on loan size and program, and most banks want to see 160 to 165 or better before they get enthusiastic. Below the floor, your application often dies in automated prescreening before a human ever reads your business plan.
SBSS is where the "my LLC protects my personal credit" story breaks down. For young businesses with thin files, the model leans heavily on the owner's personal credit — payment history, utilization, length of history, and all. Founders with strong personal credit routinely clear 200+ on SBSS before their business file has any depth at all, while founders with bruised personal credit discover that incorporation changed nothing about how banks see them.
The honest takeaway: until your business file is deep enough to carry the model on its own — typically two to three years of reported history — your personal credit habits are your business credit strategy. Paying down personal card balances before an SBA application can move your SBSS score more than anything you do on the business side that quarter.
(One more name you will encounter: Equifax Business. It publishes a Payment Index on a 1–100 scale, where 90 or above signals on-time payment, alongside credit-risk scores on wider scales. The mechanics rhyme with the other two bureaus — reported tradelines in, risk assessment out — so everything below builds it too.)
How to Build Business Credit From Zero
Knowing the models tells you what to feed them. Here is the sequence, in order, from a standing start. Expect 12 to 24 months to reach scores that open real doors; anyone promising 800-style results in 90 days is selling something.
1. Make the business a separate, verifiable entity
Before any bureau can score you, you have to exist as something other than yourself. Form the entity (usually an LLC or corporation), get a federal EIN from the IRS, open a business bank account in the company's legal name, and give the business its own phone number and address — even a virtual office beats a home address that matches the owner's. Bureaus and lenders both check that the business looks real and reachable. Sole proprietors can build business credit, but everything is harder without the separation.
2. Get your D-U-N-S number
Register free at Dun & Bradstreet's website. It takes a few weeks for the number to activate and for your file to start accepting reported data, so do this the month you form the company, not the month you need a loan. While you wait, verify your business details are identical everywhere — legal name, address, phone — because mismatches across bureaus create duplicate files that fragment your history.
3. Open net-30 vendor accounts that report
This is the engine of the whole strategy. A net-30 account lets you buy now and pay within 30 days; each paid invoice becomes a reported payment experience. Start with suppliers you already use — office supplies, packaging, inventory, fuel cards — and ask for terms.
The critical detail most founders miss: not every vendor reports to the bureaus. A net-30 account with a supplier that never reports builds zero history with anyone. Before opening an account, ask directly which bureaus the vendor reports to, and favor vendors that report to at least two. Aim for three to five reporting tradelines in your first year; that is enough to generate scores everywhere and to survive one vendor quietly dropping its reporting.
4. Get a business credit card — the personal guarantee is normal
A business card in the company's EIN does double duty: another tradeline plus a utilization data point for the risk models. Early on, nearly every issuer requires a personal guarantee, meaning you are personally liable if the business defaults. Do not let that stop you — it is standard for young companies, and the account still reports to the business bureaus. Use it for regular expenses, pay the statement balance in full, and keep utilization low. Twelve months of that history is worth more than any credit-builder product.
5. Pay early, not just on time
On-time payment is the floor, not the ceiling. Paying net-30 invoices around day 10–15 pushes Paydex above 80 and feeds Experian's trend analysis with an improving trajectory. Set calendar reminders for every terms invoice, or better, automate payment a week before the due date. One 30-day late payment can cost 15–20 Paydex points overnight — there is no faster way to sabotage a young file.
6. Keep utilization low and old accounts open
As with personal credit, high balances relative to limits signal strain. Spread spending across cards rather than maxing one, request limit increases as revenue grows (without hard inquiries where possible), and never close your oldest tradeline — its age anchors your file. Growth that rides on maxed-out credit reads as distress to every model.
7. Monitor every file and dispute errors fast
Pull your D&B, Experian, and Equifax business reports at least twice a year — each bureau sells monitoring, and free summaries exist through several fintech dashboards. Check for the three file-killers: tradelines that belong to a different company with a similar name, paid invoices showing as late, and stale balances that never updated. Dispute errors in writing with proof of payment; bureaus must investigate, and corrections typically land within 30 days. Founders who never look at their files are always shocked at what lenders see. Do not be that founder.
Mistakes That Stall or Sink Your Score
Most damaged business files trace back to a short list of avoidable errors:
- Mixing personal and business spending. Paying vendors from a personal card starves your business file of the history it needs while muddying your books. Every business expense should flow through business accounts, from day one.
- Assuming incorporation erased your personal history. For SBSS and most bank underwriting, your personal credit rides along for the first few years. Neglecting it while polishing the business file is fixing half the application.
- Paying late "just this once." Payment recency dominates every model. A single 30-day late mark on a thin file can erase a year of progress. Automate minimums at the very least.
- Stacking applications. Each lending application can trigger inquiries, and a burst of them reads as desperation. Space applications out, and know your SBSS band before you apply so you target lenders whose cutoffs you clear.
- Never checking the reports. Duplicate files, misattributed tradelines, and zombie balances are common — and invisible until you look. Monitoring is a 30-minute habit that protects everything else on this list.
Clean Books Are the Engine Under the Score
Here is the connection most credit guides skip: every strategy above depends on bookkeeping that tells the truth. You cannot pay net-30 invoices on day 12 if you do not know which invoices are outstanding — that requires payables tracked in real books, not in a shoebox of emails. You cannot keep utilization under control if business and personal spending share an account. And when a bureau shows a paid invoice as late, your dispute lives or dies on whether you can produce the payment record in minutes.
At minimum, track every tradeline account separately, reconcile bank and card accounts monthly so your cash position is never a guess, and run an aging report on payables weekly once you have more than a handful of terms vendors. Lenders that go beyond the score — and the best ones do — will ask for financial statements, and statements produced from clean, reconciled books close loans that scores alone cannot. If you want the mechanics, the guides in the documentation walk through setting up accounts and recording payments so nothing falls through the cracks.
Simplify Your Financial Management
Building business credit is a two-year project whose daily work is just disciplined bookkeeping: record every invoice, pay every bill early, and keep business money visibly separate from your own. Beancount.io gives you plain-text accounting that makes that discipline easy — every transaction version-controlled and transparent, with dashboards in Fava that show your cash position and payables at a glance. Get started for free and turn the habits that build credit into habits you never have to think about.
