Excel Template for Process Documentation: Basic Loan Calculator

This Excel template is designed to serve as a comprehensive yet straightforward tool for documenting loan processes within an organization, while simultaneously functioning as a functional Loan Calculator. The combination of Process Documentation and financial calculation functionality in a single, user-friendly file makes this template ideal for teams managing lending operations—such as banks, credit unions, or financial departments in corporate settings. With a minimalist Basic style focused on clarity and ease of use, the template ensures that both technical staff and non-technical users can understand and utilize it efficiently.

Sheet Structure

The template consists of three primary sheets, each serving a distinct purpose in the overall workflow:

1. Loan Calculator (Main): The central dashboard for calculating loan parameters.
2. Process Documentation: A detailed step-by-step record of the loan processing workflow.
3. Data Reference & Rules: A supporting sheet that stores constants, calculation rules, and validation thresholds.

Table Structures and Columns

Sheet 1: Loan Calculator (Main)

This sheet contains a structured table for inputting loan data and performing automatic calculations. The table is formatted as an Excel Table (Ctrl+T) for dynamic range expansion and improved readability.

Sheet 2: Process Documentation

This sheet is structured as a chronological workflow log to document every step in the loan processing lifecycle. It ensures transparency and compliance with internal procedures.

Sheet 3: Data Reference & Rules

This hidden (optional) sheet contains static values and formulas used across the calculator and documentation. It allows for centralized updates to parameters like tax rates, default terms, or approval thresholds.

Formulas Required

• H1 (Monthly Payment):
  =PMT(D1/12, E1, -C1)
  Calculates the monthly payment using Excel’s PMT function. Assumes monthly compounding.
• I1 (Total Interest):
  =H1*E1 - C1
  Total payments minus principal.
• J1 (Total Repayment):
  =C1 + I1
  Simple sum of principal and interest.
• Status Column (K1):
  Use data validation with dropdown: Draft, Under Review, Approved, Declined, Closed.

Conditional Formatting

• Highlight cells in the "Status" column based on value:
  - Approved: Green background
  - Declined: Red background
  - Draft/Under Review: Yellow background
• If "Actual Completion Date" is past the expected duration, apply red font to that cell.
• If the loan term exceeds 360 months (30 years), flag with a yellow warning.

User Instructions

1. Enter borrower information and loan details in the Loan Calculator sheet.
2. The template automatically computes payment, interest, and total repayment.
3. Use the Process Documentation sheet to track each step of the approval process. Update "Actual Completion Date" as steps are completed.
4. Review status flags for warnings (e.g., overdue steps).
5. To modify default rules, edit values in the Data Reference & Rules sheet (advanced users only).
6. Save a copy with a unique filename for each loan process.

Example Rows

Loan Calculator Example:

Process Documentation Example:

Recommended Charts & Dashboards

• Bar Chart: Monthly Payment Distribution by Loan Type (if multiple loan types exist).
• Pie Chart: Status Breakdown of Active Loans (Approved, Declined, Under Review).
• Gantt-style Timeline: Visualize process steps with completion dates using conditional formatting and bar charts in the Process Documentation sheet.

This Basic, yet powerful Loan Calculator template seamlessly integrates with Process Documentation, enabling accurate financial modeling alongside transparent workflow tracking. It is ideal for small to mid-sized organizations seeking a simple, reliable way to manage and document loan processes efficiently.