What is Bank Due Diligence?


Bank due diligence refers to the steps that a financial institution takes to investigate, address, and/or minimize risk. Due diligence is performed in a wide variety of banking processes, such as underwriting, BSA, acquisitions, hiring, and vendor management.

Portfolio Due Diligence

One of the most common use cases for bank due diligence involves underwriting decisions. Careful analysis of loan applications and data, especially in the case of commercial loans, allows an institution to better understand to whom it would be lending money and if approval is wise. The need for timely and accurate documentation is also paramount throughout the life of the loan.

Bank Secrecy Act Due Diligence

To remain compliant, banks are required to understand and follow Bank Secrecy Act (BSA) regulations. Among other things, this can include instituting policies and procedures to detect and report money laundering, suspicious activity, and terrorist financing. Financial institutions run an upfront screening as well as periodic reviews for customers who appear on terrorist watch lists. Banks also submit currency transaction reports (CTRs) when customers deposit or withdraw large amounts.

Acquisitions Due Diligence

Banks considering an acquisition of another financial institution or purchase of a loan portfolio perform considerable due diligence before taking action. This may involve an on-site visit to review portfolio performance, inspection of files, and significant amounts of financial analysis.

Employee Due Diligence

Standard hiring practices at financial institutions protect the bank from making unwise staffing decisions while maintaining compliance with labor laws. Background checks, drug screenings, and employment history reviews are common examples.

Vendor Due Diligence

Financial institutions should research potential vendors to ensure they are working with credible and stable businesses. Performing adequate vendor due diligence—which may include a review of the vendor’s financials—helps the bank to surface answers to important questions, such as:

  • Is the vendor’s company a legitimate, well-managed business?
  • Will the vendor gain access or maintain a copy of the bank’s data?
  • If so, what security procedures does the vendor have in place to protect and secure the data?
  • If the vendor goes out of business, how would the bank continue to use the service/software?

Best Practices & Resources for Bankers

Looking for more banking best practices? Be sure to check out our extensive resource library with free spreadsheets, whitepapers, and ebooks. You can also visit our bank compliance resource center for quick links to regulatory websites and tools.

Browse our banking definitions page for more terminology.

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