Business credit isn't a single score. It's three separate scores at three different bureaus — Dun & Bradstreet, Experian Business, and Equifax Business — and each one is built on a slightly different set of inputs. The shared input across all three is the trade reference. Specifically, the right kind of trade reference.
Most business owners assume that paying their bills on time is enough. That's part of it. But the bigger part is that the business has to be paying the right kind of bills, to the right kind of vendor, in a way that gets reported to the right bureau.
A monthly software subscription? Doesn't count. The phone bill? Usually doesn't count. The vending machine in the break room? Definitely doesn't count.
What counts is a tradeline — a vendor relationship where the business has a credit line, makes purchases on net terms, pays on schedule, and where that vendor reports the activity to one or more business credit bureaus.
Opening tradelines isn't the work. Getting them reported is.
Six tradelines tend to do the heaviest lifting for new entities.
Office supplies and small-business retail. The starter tier. Net-30 accounts with Quill, Uline, or Grainger report consistently and approve on minimal information. The relationship doesn't have to be large — a $50 monthly order is enough to start building.
Fuel and fleet cards. Even if the business doesn't run trucks, a small fleet account with WEX or Fuelman creates a high-frequency reporting relationship. Multiple monthly transactions, paid on terms, reported to the bureaus.
Industry-specific vendors. A construction company opens accounts with its lumber and supply vendors. A medical practice opens accounts with its equipment suppliers. A trucking operator opens accounts with parts and repair vendors. These are the most credible tradelines because they line up with what the business actually does.
Business cards from major issuers. Not the consumer cards opened in the owner's name. A genuine business card — Capital One Spark, Chase Ink, Amex Business — opened in the business's name with an EIN, and reporting to the business bureaus instead of (or in addition to) the personal ones.
Equipment finance, even small. A leased $5,000 piece of equipment with monthly payments creates a tradeline that signals to a future lender that someone has already extended real money on the business's reputation alone.
Net-30 with a regular service vendor. Cleaning service, IT support, landscaping — any vendor willing to invoice instead of collect on the spot. Most will agree if asked. Few are asked.
What the score actually responds to. The PAYDEX score (Dun & Bradstreet) moves on payment timing. Paying ten days early raises the score faster than paying on the due date. Paying on the due date keeps it stable. Paying late drags it down hard. The Intelliscore (Experian Business) weights both payment timing and how much of your available credit you're using — carrying balances close to the limit hurts even if you're paying on time. The Business Delinquency Score (Equifax Business) leans on patterns: recent late payments hurt more than older ones, and 60-day-late carries far more weight than 30-day-late.
The piece most owners miss. Opening tradelines isn't the work. Getting them reported is. Some vendors that grant net terms don't report to any business bureau. Others report to one but not the others. Before opening an account, the question that actually matters isn't "do they offer net terms" — it's "who do they report to."
A business credit profile built with intention rather than accident usually reaches lender-grade scores in eight to twelve months. Built by hoping the right vendors happen to report, it can take three to four years — or never get there at all.