Best Practices Guide

Supplier Diversity Reporting Guide

Master Tier 1 and Tier 2 supplier diversity reporting. Learn key metrics, compliance requirements, and best practices for tracking and reporting diverse spend.

Updated: January 2026 Reading time: 15 min

Why Supplier Diversity Reporting Matters

Supplier diversity reporting is the foundation of any successful supplier diversity program. Without accurate measurement, you can't manage, improve, or demonstrate the impact of your diversity initiatives.

Stakeholder Accountability

Reports demonstrate commitment to boards, investors, and community stakeholders who increasingly expect transparency on ESG metrics.

Contract Compliance

Government and corporate contracts often require specific diverse spend percentages. Accurate reporting ensures compliance.

Program Improvement

Data-driven insights help identify gaps, set realistic goals, and measure the effectiveness of supplier diversity initiatives.

Economic Impact

Quantify the economic contribution your diverse spend makes to communities and diverse business growth.

Tier 1 vs Tier 2 Reporting

Understanding the difference between Tier 1 and Tier 2 spend is fundamental to supplier diversity reporting.

Tier 1 (Direct Spend)

Definition: Purchases made directly from diverse suppliers by your organization.

  • You pay the diverse supplier directly
  • Easier to track and verify
  • Full control over supplier selection
  • Most common reporting requirement
Example: Your company hires a certified WBE marketing firm directly for $100,000. This is $100,000 in Tier 1 diverse spend.

Tier 2 (Indirect Spend)

Definition: Diverse spend by your prime suppliers in their subcontracting or supply chains.

  • Your supplier pays diverse vendors
  • Requires supplier cooperation to track
  • Extends impact through supply chain
  • Increasingly required by large buyers
Example: You hire ABC Corp (non-diverse) for $1M. ABC uses an MBE subcontractor for $150,000. You report $150,000 in Tier 2 diverse spend.

Why Tier 2 Matters

Many categories (e.g., large IT projects, construction) have few diverse prime contractors but many diverse subcontractors. Tier 2 reporting captures this impact and encourages prime suppliers to develop their own diverse supply chains.

Key Metrics & KPIs

Track these metrics to measure and demonstrate supplier diversity program success:

Metric Description Target Range
Total Diverse Spend Dollar amount spent with certified diverse suppliers Varies by industry
Diverse Spend % Diverse spend as % of addressable spend 10-20%+ typical goal
Supplier Count Number of diverse suppliers used Growth year over year
Avg Spend/Supplier Average spend per diverse supplier Indicates depth of relationships
Category Penetration % of categories with diverse suppliers Broader is better
Certification Mix Breakdown by MBE, WBE, VBE, LGBTBE, etc. Varies by goals

Certification Categories to Track

MBE Minority Business Enterprise
WBE Women Business Enterprise
VBE Veteran Business Enterprise
SDVOSB Service-Disabled Veteran
LGBTBE LGBT Business Enterprise
DOBE Disability-Owned Business
8(a) SBA 8(a) Certified
HUBZone HUBZone Certified

Avoid Double Counting

A supplier can hold multiple certifications (e.g., MBE + WBE). When reporting by category, count the spend once per category. When reporting total diverse spend, count the supplier's spend only once to avoid inflation.

Data Collection Best Practices

1

Establish Baseline Data

Start by documenting your current diverse spend to measure improvement. Identify addressable spend categories and current diverse suppliers.

2

Integrate with Procurement Systems

Flag diverse suppliers in your ERP/procurement system with certification type and expiration date. Automate spend tracking where possible.

3

Verify Certifications

Request copies of current certifications. Set up alerts for expiration dates. Use certification databases (NMSDC, WBENC, SAM.gov) to verify status.

4

Collect Tier 2 Data

Require prime suppliers to report diverse subcontracting. Include reporting requirements in contracts. Provide templates for consistency.

5

Regular Reconciliation

Reconcile supplier diversity data with AP data monthly or quarterly. Investigate discrepancies promptly.

Data Quality Checklist

  • Certification copies on file and current
  • Supplier taxonomy consistent (one record per supplier)
  • Spend categories clearly defined
  • Addressable vs. non-addressable spend identified
  • Parent/subsidiary relationships documented
  • Tier 2 reporting templates standardized

Compliance Requirements

Different sectors have varying supplier diversity reporting requirements:

Federal Government

Federal contractors must report small and disadvantaged business subcontracting through the eSRS (Electronic Subcontracting Reporting System) if the contract exceeds thresholds.

  • Individual Subcontracting Reports (ISRs)
  • Summary Subcontracting Reports (SSRs)
  • Required for contracts over $750,000 ($1.5M construction)

State & Local Government

Requirements vary by jurisdiction. Common requirements include:

  • Monthly or quarterly spend reports
  • Good faith effort documentation
  • Utilization plans
  • Payment verification

Utilities (California)

CPUC-regulated utilities must report annually through GO 156:

  • Women, Minority, Disabled Veteran spend
  • Both Tier 1 and Tier 2
  • Annual reports due March 1

Corporate (Voluntary)

Many corporations set internal goals and report in:

  • Annual ESG/CSR reports
  • CDP Climate disclosures
  • GRI sustainability reports
  • Customer-required reports

Reporting Tools & Templates

Software Solutions

Several software platforms specialize in supplier diversity tracking:

  • Supplier.io: Comprehensive spend analytics and diverse supplier identification
  • Coupa: Procurement platform with diversity tracking capabilities
  • Ariba: Supplier management with diversity module
  • B2GNow: Popular for government contract compliance
  • Tealbook: Supplier data and diversity intelligence

Basic Reporting Template

At minimum, your supplier diversity report should include:

  1. Executive Summary
    • Total diverse spend and % of addressable
    • Year-over-year comparison
    • Progress toward goals
  2. Spend by Certification Category
    • MBE, WBE, VBE, SDVOSB, LGBTBE, DOBE breakdown
    • Tier 1 vs Tier 2 split
  3. Spend by Business Category
    • Top categories by diverse spend
    • Opportunities for growth
  4. Supplier Analysis
    • Number of diverse suppliers
    • Top diverse suppliers by spend
    • New suppliers added
  5. Program Initiatives
    • Outreach events attended
    • Mentorship programs
    • Supplier development activities

Common Challenges & Solutions

Challenge: Expired Certifications

Impact: Spend can't be counted if certification lapses.

Solution: Implement 90-day advance alerts. Include recertification assistance in supplier development programs.

Challenge: Supplier Won't Self-Identify

Impact: Missing diverse spend in reports.

Solution: Use third-party databases for identification. Explain benefits of registration. Streamline your registration process.

Challenge: Tier 2 Data Quality

Impact: Inaccurate or incomplete subcontractor reporting.

Solution: Contractual requirements, standardized templates, periodic audits, and Tier 2 reporting incentives.

Challenge: Defining Addressable Spend

Impact: Inflated or deflated percentages.

Solution: Establish clear criteria (e.g., exclude intercompany, utilities, taxes). Document methodology consistently.

Frequently Asked Questions

What is "addressable spend" and why does it matter?

Addressable spend is the portion of your total spend where you have flexibility to choose suppliers. It excludes categories where diverse suppliers don't exist or where you have no choice (e.g., taxes, utilities, intercompany transfers, sole-source contracts).

Reporting diverse spend as a percentage of addressable spend (rather than total spend) gives a more accurate picture of program performance. A company with 10% diverse spend against addressable spend is performing better than one with 5% against total spend if the first has less addressable opportunity.

Should I count P-card or credit card purchases?

Yes, if you can track them. P-card spend with diverse suppliers should be included. Challenges include:

  • Merchant category codes may not identify diverse vendors
  • Small dollar amounts may not justify tracking effort
  • Employee purchases may bypass procurement controls

Best practice: Flag known diverse merchants in your P-card system. For smaller programs, focus first on larger PO-based spend.

How do I handle joint ventures with diverse suppliers?

For joint ventures (JVs), you can typically count the percentage of the JV that is diverse-owned. For example, if a diverse supplier owns 40% of a JV that receives $1M in spend, you could report $400,000 as diverse spend.

However, requirements vary by reporting entity. Federal contracts have specific rules for mentor-protégé JVs. Always verify the rules for your specific reporting requirements.

What if a supplier loses certification mid-year?

Generally, you can count spend that occurred while the certification was valid. Spend after the certification expires cannot be counted as diverse spend.

This is why certification tracking and renewal alerts are critical. Work with suppliers to ensure continuous certification, or reclassify them as non-diverse in your system when certifications lapse.

How do I report when a diverse supplier is acquired by a non-diverse company?

Once a diverse supplier is acquired and no longer meets ownership criteria, they typically lose diverse status. This is called "certification graduation" or "acquired out."

For reporting purposes:

  • Count spend as diverse up to acquisition date
  • Reclassify as non-diverse after acquisition
  • Document the change for audit purposes

Need Help With Your Supplier Diversity Program?

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