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Finance guideBusiness credit is separate from personal credit. It is tracked by Dun & Bradstreet, Experian Business, and Equifax Business. Strong business credit reduces personal guarantee requirements and opens up better terms.
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Business Credit Building · File.Business

How to build business credit.

Personal credit follows you. Business credit follows your entity. Building business credit lets you access financing without personal guarantees, increases credit limits, and reduces dependence on your personal FICO score. This guide covers the steps to build business credit from scratch: DUNS number, vendor accounts, business credit cards, Net-30 trade lines, and how the major business credit bureaus calculate scores.

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Key facts

Start here.

Key fact
Three main bureaus

Dun & Bradstreet (PAYDEX), Experian Business (Intelliscore), Equifax Business (Business Credit Risk Score).

Key fact
DUNS number

Free identifier from D&B. Required for many business credit applications, government contracts, and credit reporting.

Key fact
Time horizon

Building established business credit takes 12-24 months. Patient, consistent reporting builds the file.

Key fact
Personal guarantee

Most early business credit requires personal guarantee. As business credit strengthens, PG can be reduced or eliminated.

Key fact
Vendor accounts

Net-30 accounts with vendors who report to bureaus are the fastest way to build business credit history.

In depth

The full picture.

01

Form an entity

LLC or corp creates the entity that owns the credit. Sole proprietor business credit is tied to personal SSN; less useful for separation.

02

Get an EIN

Federal tax ID. Required for opening business accounts and credit applications. Free from IRS, same-day for US founders.

03

Open business bank account

Required for most credit applications. Demonstrates financial substance. Some lenders verify with bank statements.

04

Register with DUNS

Free DUNS number from Dun & Bradstreet. dnb.com. Takes 1-3 days. Required for many business credit applications.

05

Open Net-30 vendor accounts

Trade lines with vendors who report to bureaus. Examples: Uline, Quill, Grainger, Crown Office Supplies. Order, pay on time, build reporting history. 3-5 vendor accounts is a strong start.

06

Get a business credit card

Even one with personal guarantee builds business credit. Capital One Spark, Amex Business, Chase Ink. Pay in full and on time.

07

Build payment history

Pay all business obligations on time or early. PAYDEX score (D&B) is based on payment timing: paying early (1-30 days before due) maximizes the score.

08

Monitor your reports

Check D&B, Experian, Equifax business reports quarterly. Dispute errors. Track score progression.

09

Avoid common mistakes

(1) Using personal credit for business expenses: keeps credit personal. (2) Missing payments: damages business credit faster than it built. (3) Closing oldest trade lines: shortens credit history. (4) Letting business address fall out of sync: bureaus require consistency.

10

Scale into PG-free credit

After 12-24 months of strong reporting, apply for credit cards and lines without personal guarantee. Bank of America Business, Amex, and others offer PG-free options once business credit is established.

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FAQ

Common questions.

Is business credit really separate from personal?
Yes, in concept. In practice, most early-stage business credit requires personal guarantee, so default impacts both. Established business credit can be obtained without personal guarantee.
How long does it take to build business credit?
First credit reporting: 30-90 days after opening trade lines. Established business credit profile: 12-24 months of consistent reporting.
What is a DUNS number?
Dun & Bradstreet Universal Numbering System. Unique nine-digit identifier for each business entity. Free to obtain. Required for many credit applications and government contracts.
What is a PAYDEX score?
Dun & Bradstreet's business credit score, 0-100. Above 80 = paying on time. Above 90 = paying early. Most lenders want 80+.
Do all vendors report to credit bureaus?
No. Many do not. Look for vendors that explicitly report (Uline, Quill, Grainger, Crown). Some have programs that require enrollment.
Can I use my SSN for business credit?
Personal credit is on your SSN. Business credit is on EIN. Many initial applications still ask for SSN (for personal guarantee), but the trade line reports under EIN.
Does my LLC need to be old to get business credit?
Newer LLCs face more restrictions. Many lenders require 2+ years in business. SBA loans require 2+ years. Online lenders sometimes accept younger businesses.
What is a tradeline?
A credit account that reports to credit bureaus. Trade lines build credit history. Vendor accounts, credit cards, and loans are all tradelines.
Should I check my business credit before applying for loans?
Yes. Errors are common. Address mismatches, wrong industry codes, inaccurate revenue can all hurt scores. Dispute errors before applying.

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This guide is educational. Funding decisions require professional advice from licensed attorneys and CPAs.

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