Guide · Business Credit
How to Build Business Credit: Step-by-Step Guide
Business credit is what unlocks larger loan amounts, better rates, higher supplier terms, and — eventually — financing that doesn't lean on your personal FICO. It doesn't build itself. Here's the exact order to set up your business credit file and the accounts that actually report to Dun & Bradstreet, Experian Business, and Equifax Business.
The 8-step business credit checklist
1. Register a formal business entity
Form an LLC or corporation in your state. Sole proprietors can't fully separate business and personal credit — every file will still tie back to your SSN.
2. Get an EIN from the IRS
Free at irs.gov/EIN. Your EIN is the business equivalent of an SSN and is required to open a business bank account and apply for credit in the business name.
3. Open a dedicated business bank account
Use the business's legal name and EIN. Lenders and vendors verify this account before extending credit. Do not commingle personal and business funds — it undermines both credit-building and legal liability protection.
4. Get a business phone number and address
A listed business phone (Google Business Profile, 411 listing) and a physical address (not a UPS box) let credit bureaus and lenders verify your business exists. Virtual office addresses from providers like Regus or Alliance work when a real office isn't practical.
5. Request a D-U-N-S number
Free at dnb.com. This creates your file with Dun & Bradstreet and is the anchor for your PAYDEX score. Never pay a third party — D&B provides it directly.
6. Open 3–5 net-30 vendor tradelines
Start with vendors that report to the business bureaus without requiring a personal guarantee: Uline, Grainger, Quill, Summa Office Supplies, and Crown Office Supplies. Order small amounts, pay early, repeat monthly.
7. Add a business credit card
Once you have 3–4 months of vendor history, apply for a business credit card that reports to business bureaus (Capital One Spark, U.S. Bank Business Cash, Amex Business). Keep utilization under 30%.
8. Add a small business line of credit or term loan
After 6–12 months of clean vendor and card history, a reporting line of credit or term loan is the final layer that pushes business credit scores into 'strong' territory and opens the door to bigger financing.
The business credit scores that matter
Dun & Bradstreet PAYDEX (0–100)
Measures payment timeliness. 80+ means you pay on time or early. This is the single most-referenced business credit score and is fed by vendor tradelines.
Experian Intelliscore Plus (1–100)
Blends payment history, credit utilization, business age, and industry risk. 76+ is considered low risk by most lenders.
Equifax Business Credit Risk Score (101–992)
Predicts likelihood of severe delinquency in the next 12 months. Higher is better.
FICO SBSS (0–300)
The SBA uses this to pre-screen loans under $500K. Minimum score is 155; 180+ is competitive. Blends personal and business credit data.
Common mistakes that stall business credit
- Applying for vendor accounts that don't report to any business bureau.
- Using a personal cell number or home address that isn't listed under the business name.
- Paying vendors on the due date instead of early — PAYDEX rewards early payment.
- Running business card utilization above 30% (same rule as personal credit).
- Opening too many tradelines in the first 30 days — spread applications out.
- Never checking your D&B, Experian Business, or Equifax Business file for errors.
How business credit changes what you can qualify for
With a thin business credit file, lenders underwrite almost entirely on personal FICO and bank statements. Once your business has 12+ months of reporting tradelines and a PAYDEX above 80, lenders will extend larger amounts, longer terms, and — for some product types — release the personal guarantee. If you already meet a lender's revenue and time-in-business minimums, see the qualification guide for what a lender actually reviews on the application.
Frequently asked questions
How long does it take to build business credit?
Most owners can establish a basic business credit profile in 3–6 months by opening a D-U-N-S number, a business bank account, and 3–5 net-30 vendor tradelines that report to Dun & Bradstreet, Experian Business, and Equifax Business. A strong profile (PAYDEX 80+, Intelliscore 76+) typically takes 12–18 months of consistent on-time payment history.
Do I need an LLC to build business credit?
You need a registered business entity — usually an LLC or corporation — so lenders and bureaus can separate the business from you personally. Sole proprietors can build limited business credit but most vendors and bureaus will still tie the file to the owner's SSN.
What is a D-U-N-S number and do I need one?
A D-U-N-S number is a free 9-digit identifier issued by Dun & Bradstreet. It's how D&B tracks your business credit file and PAYDEX score. Most business credit bureaus and many lenders reference it, and it's required for federal contracts. Request it directly at dnb.com — never pay a third party for one.
What are net-30 vendor tradelines?
Net-30 vendors let you buy supplies and pay the invoice within 30 days. When those vendors report to the business credit bureaus, on-time payments build your PAYDEX and Intelliscore. Common starter vendors that report include Uline, Grainger, Quill, Summa Office Supplies, and Crown Office Supplies.
Will building business credit hurt my personal credit?
Opening a business credit file itself does not affect personal credit. However, most business credit cards and lines still require a personal guarantee and pull your personal credit at application. Once you've built enough business credit history, some lenders offer 'no personal guarantee' products.
What credit scores do business lenders actually look at?
Most lenders review a combination of Dun & Bradstreet PAYDEX (0–100), Experian Intelliscore Plus (1–100), Equifax Business Credit Risk Score (101–992), and the FICO SBSS (0–300) for SBA-eligible loans. Your personal FICO still matters for underwriting until the business is well established.
Can I build business credit with bad personal credit?
Yes — the business credit file is separate. But you'll be limited to starter net-30 vendors and secured business cards for the first 6–12 months. As business tradelines and revenue history grow, more products become available regardless of personal credit.