AF Form 645: Cash Register Adjustment Guide & Download

AF Form 645: Cash Register Adjustment Guide & Download – Air Force personnel working in Nonappropriated Fund Instrumentalities (NAFIs) — such as Force Support Squadron (FSS) activities, bowling centers, golf courses, clubs, and other morale, welfare, and recreation (MWR) facilities — rely on precise cash handling procedures. AF Form 645, officially titled NAF Cash Register Adjustment, serves as the standardized tool for documenting and correcting cash register errors.

This article explains the form’s purpose, proper use, related procedures, and compliance requirements based on current Air Force guidance (primarily AFMAN 34-202, Procedures for Protecting Nonappropriated Fund Assets, dated 25 June 2019, which remains the key reference).

What Is AF Form 645?

AF Form 645 is a U.S. Air Force form released on November 1, 1987, and used Air Force-wide for Nonappropriated Fund (NAF) cash register adjustments. It documents errors such as:

  • Over-rings (charging too much)
  • Incorrect sales entries
  • Voids on completed transactions
  • Other adjustments needed to reconcile the cash drawer with actual sales

The form ensures an accurate audit trail, prevents discrepancies in cashier reports, and maintains strict internal controls over cash and cash equivalents.

Download the official form here: AF Form 645 PDF

Why AF Form 645 Matters in Air Force Cash Handling?

NAF operations handle customer payments for goods and services that support military quality-of-life programs. Strict accountability protects funds, deters errors or misuse, and ensures compliance with Department of the Air Force standards.

Key rules from AFMAN 34-202 (Paragraph 3.9.5):

  • Cashiers must not adjust an incorrectly rung sale on a subsequent transaction.
  • Use AF Form 645 to document each error.
  • Annotate the cash register tape (or POS report) to flag the error.
  • Attach the completed AF Form 645 to the daily AF Form 1875 (Cashier’s Report) or equivalent system-generated report.

For Point-of-Sale (POS) systems:

  • Managers or designees typically use a restricted passcode for voids.
  • Cashiers complete AF Form 645 for voids/over-rings when a manager is unavailable.

A supervisor or manager must approve (countersign) each AF Form 645. This transaction appears in the “Adjustments” column on the cashier’s report.

Step-by-Step: How to Complete and Process AF Form 645?

While the form itself is straightforward, follow these best practices (drawn from AFMAN 34-202 and installation-level operating instructions):

  1. Identify the Error — Immediately upon discovering an incorrect ring (e.g., wrong item, amount, or customer change).
  2. Fill Out the Form — Record:
    • Date and time of the transaction/error
    • Cash register/POS identification
    • Description of the error (e.g., “Over-ring of $12.50 on item XYZ”)
    • Original amount rung and correct amount
    • Adjustment amount (positive or negative)
    • Cashier’s printed name and signature/initials
  3. Obtain Approval — Manager or supervisor reviews and countersigns.
  4. Flag Supporting Documentation — Mark the register tape or print the POS receipt/report and attach it.
  5. Attach to Daily Report — Include with AF Form 1875 (or equivalent) at shift end.
  6. File and Retain — The NAF Accounting Office processes these as part of daily cash reconciliation. Retain records per Air Force records disposition policies.

Tip: Local FSS Resource Management Flight Chiefs often issue operating instructions (OIs) that detail exact procedures. Check your installation’s guidance for any supplements.

  • AF Form 1875 — Cashier’s Report: Daily summary where adjustments from AF Form 645 are totaled.
  • AF Form 1876 — Used for certain NAF accounting transmissions to the NAF Accounting Office.
  • AF Form 2555 — NAF Collection Record (for operations without registers).
  • Surprise cash counts, marked money controls, and robbery procedures also tie into overall cash protection under AFMAN 34-202.

Common Scenarios Requiring AF Form 645

  • Customer orders the wrong item and the sale is already completed.
  • Cashier enters an incorrect price or quantity.
  • POS system glitch or void after tender.
  • Training or testing transactions that need reversal.

Frequent use of the form may trigger reviews of cashier training or register procedures to reduce errors.

Compliance, Training, and Best Practices (U.S. Air Force Personnel)

  • Training — Activity managers brief cash handlers on procedures upon appointment and semi-annually. This includes use of AF Form 645.
  • Internal Controls — Resource Management Flight Chiefs ensure clear void procedures in local OIs.
  • Audits — Proper documentation supports audits, surprise cash counts, and financial reporting.
  • Consequences of Non-Compliance — Discrepancies without proper forms can lead to shortages charged to the cashier, investigations, or disciplinary actions.

U.S.-based Air Force installations (including those in the continental United States and overseas) follow these standardized NAF procedures to maintain uniformity.

Need the Form or More Guidance?

  • Official Download: AF Form 645
  • Primary Reference: AFMAN 34-202 on the Air Force e-Publishing site (e-publishing.af.mil).
  • Contact your local FSS Resource Management Office or NAF Accounting Office for installation-specific training or templates.

Proper use of AF Form 645 supports mission readiness by ensuring reliable MWR services and strong financial stewardship. Accurate cash handling protects taxpayer-supported NAF programs that benefit service members, families, and civilians every day.

This guide is for informational purposes and based on publicly available official sources as of 2026. Always refer to the latest version of AFMAN 34-202 and your local directives for authoritative guidance.