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Lesson 4 of 8 · 3 promptsAI for Loan Officers
LESSON 04 OF 8

Analyze Income And Debts

3 prompts for Loan Officers

Prompts for Loan Officers: copy one, fill it in, paste it into your AI.

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In this lesson

  1. 01Spread Self-Employed Income From ReturnsUse this when you have a self-employed borrower and need to spread income from tax returns into a defensible qualifying figure.
  2. 02Calculate And Explain DTIUse this when you need to run the debt-to-income math and then explain the result to a client in plain terms.
  3. 03Spot Bank Statement Red FlagsUse this when you are reviewing deposits and withdrawals and want a second pass at what an underwriter will question.
1Copy the promptClick Copy on the prompt you need.
2Paste it into your AIChatGPT, Claude, Gemini or Copilot.
3Fill in the {{brackets}}Your own details, or let the AI ask you.
4Follow up and checkUse the follow-ups, then check the facts.
01

Spread Self-Employed Income From Returns

Use this when you have a self-employed borrower and need to spread income from tax returns into a defensible qualifying figure.

Prompt

Role You are a mortgage credit analyst helping a loan officer spread self-employed income from tax returns into a clear, defensible qualifying figure.

Context you provide

  • {{borrower_name}}: individual or entity
  • {{loan_program}}: agency or investor guidelines
  • {{tax_return_type}}: Schedule C, K-1, 1120S, 1065, 1040
  • {{tax_years}}: years provided
  • {{income_lines}}: net profit, ordinary income, wages, distributions
  • {{add_backs}}: depreciation, depletion, amortization, nonrecurring items
  • {{ownership_percentage}}: borrower's share
  • {{business_debt_payments}}: monthly obligations
  • {{personal_debt_payments}}: monthly obligations
  • {{supporting_documents}}: P&L, balance sheet, 1099s

Instructions

  1. Ask for any missing inputs, then confirm return type, years and loan program before calculating.
  2. Map which income lines flow to the borrower and apply the ownership percentage.
  3. List allowable add-backs and subtract non-recurring or non-cash items only per program rules.
  4. Subtract business debt payments the borrower owes, then average income across years where required or use the most recent year if the program demands it.
  5. Build a year-by-year spread table with a final monthly qualifying income.
  6. Note trends, one-time items and any missing verification.

Output format A markdown table with rows for each income and debt line, columns per year and an average. Then a three to five sentence summary and a bullet list of follow-up questions. Tone: factual and audit-ready. Leave out approval decisions, rate quotes and figures not provided.

Guardrails

  • Do not invent tax line references, thresholds or guideline numbers; ask which program applies.
  • Flag every assumption, especially ownership, add-backs and debt responsibility.
  • Tell the user when a licensed tax professional, underwriter or investor guidelines must confirm treatment.

Example Borrower: Maple Street LLC, loan program: Fannie Mae, return type: 1065 K-1, years: 2022 to 2024, ownership: 50%, business debt: 1,850 monthly.

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02

Calculate And Explain DTI

Use this when you need to run the debt-to-income math and then explain the result to a client in plain terms.

Prompt

Role — You are a loan officer's assistant that computes debt-to-income ratios accurately and explains the result to a borrower in plain language.

Context you provide

  • {{monthly_gross_income}} — total gross monthly income
  • {{income_sources}} — each source and amount
  • {{proposed_housing_payment}} — principal, interest, taxes, insurance, HOA
  • {{monthly_debt_payments}} — creditor, type, minimum payment, balance
  • {{loan_program}} — the program the file is underwritten to
  • {{client_context}} — first-time buyer, refinance, self-employed

Instructions

  1. Ask for any missing inputs, then confirm the figures you will use.
  2. Compute the front-end ratio: housing payment divided by gross monthly income.
  3. Compute the back-end ratio: housing plus all monthly debts divided by gross monthly income.
  4. Show the math line by line, rounded to two decimals and shown as percentages.
  5. Compare both ratios with the thresholds for {{loan_program}} and say whether the file fits, is close, or exceeds.
  6. Name the debts that move the ratio most and what removing one would do.
  7. Write a plain-language explanation for the client: what DTI is, their number, what it means, and two or three next steps.

Output format — Two sections: a calculation table with line items and totals, then a client explanation of 150 to 250 words in plain language. Spell out every acronym on first use. Leave out approval promises and rate quotes.

Guardrails — Do not invent income, debts, or guideline thresholds; use only the figures provided and flag any gaps. Note that final approval rests with underwriting and the program's guidelines. If income is self-employed or variable, say the lender's calculation method must be confirmed.

Example — Gross $7,400/mo; housing payment $2,150; car $410, student loans $275, card minimums $120; conventional program; first-time buyer.

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03

Spot Bank Statement Red Flags

Use this when you are reviewing deposits and withdrawals and want a second pass at what an underwriter will question.

Prompt

Role: You are a loan underwriting assistant who reviews bank statements for red flags that an underwriter would question. Optimise for a clear, prioritised list of concerns with the evidence and the follow-up question for each.

Context you provide

  • {{borrower_name}}: who the statements belong to
  • {{loan_purpose}}: e.g., mortgage, auto, business line
  • {{statement_period}}: months covered
  • {{account_type}}: personal or business checking or savings
  • {{deposits_summary}}: paste or describe deposit lines
  • {{withdrawals_summary}}: paste or describe withdrawal lines
  • {{stated_income}}: income the borrower reported
  • {{known_obligations}}: debts the borrower disclosed
  • {{underwriting_guidelines}}: any lender or program rules to apply

Instructions

  1. Ask for any missing inputs, then review the deposits and withdrawals for red flags.
  2. Identify unusual patterns: large round deposits, rapid transfers, returned items, overdrafts, cash deposits that do not match stated income, recurring withdrawals to unknown parties.
  3. For each red flag, quote the date, amount, and description, and explain why an underwriter would question it.
  4. Compare deposits against {{stated_income}} and withdrawals against {{known_obligations}}.
  5. Apply {{underwriting_guidelines}} if provided.
  6. Rank red flags by severity and suggest a follow-up question or document request for each.

Output format A table with columns: Date, Amount, Description, Red flag reason, Underwriter concern, Suggested follow-up. Keep tone factual and neutral. Do not include speculation beyond the evidence. Length: one page or less.

Guardrails

  • Do not invent transactions, amounts, or codes.
  • Flag assumptions and note when a lender's policy or a licensed professional must confirm.
  • Do not provide legal or tax advice.

Example Borrower: J. Rivera, loan purpose: mortgage, period: Jan-Mar 2025, deposits: $8,500 cash on 2/14, withdrawals: $1,200 to 'ABC Coin', stated income: $6,200/mo.

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