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Letter of explanation for an SBA loan (+ sample)

How to write a letter of explanation for an SBA loan: late payments, credit inquiries, liens, tax issues and gaps, with a sample letter and template structure.

Published · 7 min read · By the AceTheSBA team

Key points

  • A letter of explanation is a short, signed statement that tells the lender what happened, why, and what has changed. SBA has no official form for it.
  • SOP 50 10 8.1 requires lenders to discuss credit issues, liens, judgments, bankruptcies and pending lawsuits, and to obtain a written explanation of late payments on any debt being refinanced.
  • Lenders often ask about recent credit inquiries to find out whether you took on new debt that is not yet on your credit report.
  • Keep each letter to one page: facts and dates, the cause, the resolution and the evidence. No excuses and no emotional language.

Almost every SBA application has something that needs explaining: a late payment, a tax lien, a dip in revenue or a stack of recent credit inquiries. A clear letter of explanation turns a question mark into a documented, resolved item that the lender can write up and move past.

Why SBA lenders ask for letters of explanation

Under SOP 50 10 8.1, the lender’s credit memorandum must discuss the owners’ and guarantors’ credit reports and any credit issues, along with any liens, judgments, bankruptcy filings or pending litigation, including divorce proceedings. When a loan refinances existing debt, the lender must also include a written explanation of any late payments over the past 12 months.

Your letter gives the lender the facts in your words, which it can rely on and file. Without it, the lender has to guess, and guesses tend to be conservative.

When you need one

  • Late payments or accounts that went to collections
  • Credit inquiries in the last few months
  • Tax liens, judgments or other public records
  • Bankruptcy or foreclosure
  • Gaps in employment or business history
  • Drops in revenue or a loss year
  • Large deposits or transfers, such as the source of your equity injection
  • Different names or addresses on your records
  • Pending lawsuits, including divorce proceedings

How to write it: the five-part structure

  1. The facts. What happened, with dates and amounts. Match the credit report exactly.
  2. The cause. One or two sentences: a medical event, a customer that failed to pay, a billing dispute.
  3. The resolution. What you did: paid in full, set up a payment plan, closed the account.
  4. What has changed. Why it will not happen again: autopay, a reserve, a bookkeeper, diversified customers.
  5. The evidence. List what is attached: payoff letters, release of lien, payment agreement, statements.

Keep it to one page per issue, factual and calm. Sign and date it.

Letter of explanation regarding credit inquiries

Lenders look at recent inquiries because they can signal new debt that has not yet reached your credit report. For each inquiry, state:

  • The date and the creditor
  • What it was for, such as an equipment quote or a car loan
  • Whether it led to new credit, and if so the lender, amount, monthly payment and balance
  • That any new debt is listed on your business debt schedule or personal financial statement

Several inquiries from lenders you approached for this same SBA loan can be explained in one sentence.

Letter of explanation sample (late payments)

November 5, 2026

To: Credit Department, [Lender name] Re: Letter of explanation, [Business name], SBA loan application

My credit report shows two payments made more than 30 days late on my business credit card with [Card issuer], in March and April 2026.

In February 2026, our largest customer, which represented about 30% of revenue, paid 75 days late after a change in its accounts payable system. To keep payroll current, I delayed the card payments.

The customer paid in full in April 2026, and I brought the account current on April 28, 2026. It has been paid on time every month since.

To prevent a repeat, I set up automatic minimum payments on all business accounts, moved our largest customers to 30-day terms with a late fee, and built a cash reserve equal to one month of operating expenses, which currently stands at $42,000.

Attached: card statements for March to October 2026 and the customer’s payment record.

[Signature] [Name], Owner, [Business name]

Change the facts to yours. Never include anything you cannot document.

Mistakes to avoid

  • Blaming others without explaining what you changed
  • Leaving out an item the lender will find anyway
  • Dates or amounts that do not match the credit report or tax returns
  • Long personal stories. Keep the cause to one or two sentences.
  • Promising what you cannot show. Attach the evidence.

This article reflects SBA SOP 50 10 8.1, effective October 1, 2026. The sample letter is illustrative; AceTheSBA provides education, not credit repair or legal advice.

Frequently asked questions

What is a letter of explanation for an SBA loan?
A short, signed letter that explains an item in your application or credit report, such as late payments, a lien, a bankruptcy, a tax issue or a gap in employment. The lender uses it in its credit memorandum, which must discuss any credit issues.
How do I write a letter of explanation for credit inquiries?
List each inquiry by date and creditor, say what it was for, and state whether it resulted in new credit. If it did, give the lender, amount, payment and current balance, and confirm the debt is on your business debt schedule or personal financial statement. If it did not, say so.
How long should a letter of explanation be?
One page or less for each issue. Lenders want facts, dates, the cause, how it was resolved and why it will not happen again, with supporting documents attached.
Who signs a letter of explanation?
The person whose credit or record is being explained, usually the owner or guarantor. For a business issue, an authorized owner signs on behalf of the business.
Does a letter of explanation guarantee approval?
No. It helps the lender understand and document the issue, but the decision rests on the whole application: cash flow, equity, collateral, management and credit.

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