How to Build Business Credit in 90 Days

Lay the Foundation Before Applying for Anything

The most common mistake business owners make when trying to build business credit is applying for accounts before establishing their business as a credible, separate legal entity. Lenders and bureaus look for a consistent business identity across multiple data sources. If your business name, address, and phone number are inconsistent across your state registration, Google Business profile, website, and credit applications, it creates friction that can delay account approvals or cause your credit file to be linked incorrectly. Before doing anything else: register your business as an LLC or corporation if you have not already — sole proprietorships blur the personal-business line. Get an EIN from the IRS if you do not have one. Open a dedicated business checking account in your business name. Get a business phone number listed in your business name. Create a basic business website. These steps take one to two weeks and cost very little, but they are prerequisites that multiply the effectiveness of every step that follows. Register with Dun & Bradstreet to obtain your DUNS number at dnb.com. This is free and activates your file in D&B's database, which is the largest business credit bureau in terms of lender reliance. Without a DUNS number, many lenders cannot pull a D&B report for your business, which can disqualify you from products that require a Paydex score.

Weeks 1–4: Open Vendor Accounts That Report

The fastest path to a Paydex score is opening net-30 trade accounts with suppliers that report payment history to D&B. Several large vendors are well-known starter accounts for business credit building because they have relatively easy approval requirements and reliably report to the bureaus. Uline (shipping and packaging supplies), Quill (office supplies), and Grainger (industrial and safety supplies) all offer net-30 terms to new businesses and report to D&B. Apply for three to four of these accounts in the first two weeks. You do not need to make large purchases — buy small amounts of supplies your business legitimately uses, pay the invoice early (before the due date), and let the positive payment history accumulate. Some of these vendors will approve new businesses with minimal requirements beyond a valid EIN and business address. Apply for accounts sequentially, not all at once. Applying for multiple credit accounts in rapid succession can signal desperation to bureaus. Space applications two weeks apart. As each account opens, make a small purchase, receive the invoice, and pay it within 10 days even though terms are net-30. Paying 20 days early on a net-30 account earns the maximum Paydex points for that trade line.

Weeks 4–6: Add a Business Credit Card

Once you have two or three vendor accounts open and have made at least one payment, apply for a business credit card from a major bank. Business credit cards from American Express, Chase, Bank of America, and Capital One report to business credit bureaus — specifically Experian Business and Equifax Business, which vendor trade lines may not always cover. Adding a business credit card diversifies the types of credit on your file and adds a revolving credit dimension that improves your Intelliscore and Equifax Business scores. For businesses with limited credit history, a secured business credit card is an option. You deposit a security amount — typically $500 to $2,000 — that becomes your credit limit. The card reports to the bureaus exactly like an unsecured card, so your payment history builds just as effectively. After 12 months of positive history, most issuers will convert the secured card to an unsecured account and return your deposit. Keep your credit card utilization low — below 30% of your limit is good, below 10% is better. If your limit is $5,000, try not to carry a balance above $1,500. High utilization signals financial stress to scoring models even when you are paying on time. Pay the statement balance in full each month to avoid interest charges and keep utilization from accumulating.

Weeks 6–10: Convert Existing Vendor Relationships

If your business already pays suppliers, contractors, or service providers on time, you may be sitting on unreported positive payment history. Many vendors do not automatically report to credit bureaus but will do so if asked. Contact your top five vendors and ask whether they report to D&B, Experian, or Equifax Business. If they do not, ask whether they would be willing to have their payment data included in a D&B Trade Reference program. D&B operates a "Self-Reported Trade Reference" process where you can ask vendors to submit payment history on your behalf. This process is slower than automatic reporting but can add significant positive history to your file. Collect references from vendors with whom you have at least six months of on-time payment history, as older positive references carry more weight. You can also submit trade references directly through D&B's iUpdate portal, listing vendors who can verify your payment history. D&B will contact those vendors to confirm the information before adding it to your file. This process takes two to four weeks per reference but can substantially increase the number of positive trade lines on your D&B report.

Weeks 8–12: Monitor and Correct Your File

At the eight-week mark, pull your D&B report through CreditSignal or Nav and check whether your Paydex score has been generated. A Paydex score typically appears once you have at least three reporting trade lines with at least one payment cycle completed. If it has not appeared yet, check that your vendor accounts are reporting under your exact business name and address — mismatches can cause trade lines to be filed under a different entity. Look for any negative information that should not be there. Public record errors, late payment notations for invoices you actually paid on time, and duplicate trade lines under different business name variations are common issues. Dispute anything inaccurate immediately through D&B's dispute portal. Early disputes are faster to resolve than disputes that have been sitting on a report for years. At 90 days, a business that has followed this sequence should have four to six positive trade lines, a Paydex score in the 75-85 range (assuming all payments made on time or early), and a basic business credit card with a clean payment history. This foundation qualifies you for most small business financing products — including SBA loans that require a minimum Paydex of 80 from many lenders.

Beyond 90 Days: Maintaining and Strengthening Your Score

The 90-day playbook gets you started, but business credit building is an ongoing discipline. Every month that passes with positive payment history adds weight and stability to your score. At the six-month mark, consider applying for a second business credit card with a higher limit to increase your available revolving credit and further lower your utilization ratio. At one year, many community banks and credit unions will consider your business for an unsecured line of credit — a product that requires a more established business credit history than vendor accounts or starter cards. An unsecured line of credit at a reputable bank is both a useful financial tool and a powerful trade reference that carries significant weight with other lenders. Avoid closing old accounts even if you are not using them. Account age contributes to your credit history length, which improves scores over time. An old vendor account with a $500 credit limit that you barely use is still valuable because it adds a positive, aged trade line to your file. The goal is a credit profile that tells a consistent story of responsible, long-term financial relationships.

Frequently asked questions

Can I build business credit without using my personal credit?

Yes, but it requires focusing on trade accounts and business credit cards that approve based on business identity rather than personal credit history. Many starter vendor accounts — Uline, Quill, Grainger — do not require a personal credit check. However, most banks require a personal guarantee and personal credit check for business credit cards, which means some personal credit pull is typically unavoidable in the early stages. Over time, as your business credit profile strengthens, lenders rely less on your personal score.

How many trade lines do I need to get a Paydex score?

D&B requires at least three reporting trade references to calculate a Paydex score. However, lenders typically want to see five or more trade lines before treating a Paydex score as meaningful. A score based on only three trade lines is considered thin and less predictive than one with eight or ten trade references. More trade lines, consistently paid on time, produce a more stable and compelling score.