Impact of a Prolonged U.S.–Iran Conflict on U.S. Small Business Lending and Underwriting

Geopolitical tensions between the United States and Iran have historically revolved around regional influence in the Middle East, nuclear program concerns, and security dynamics involving U.S. allies in the region. Escalation into a broader conflict would likely disrupt global energy supply routes, particularly through the Strait of Hormuz, a key chokepoint for global oil transportation. Such disruptions tend to trigger volatility in energy markets, inflationary pressures, and uncertainty across financial systems worldwide.

For the United States, these macroeconomic shocks would directly affect small businesses, which form the backbone of the economy and are highly sensitive to fluctuations in fuel costs, supply chains, and consumer spending. Since many small businesses rely on financing through government-backed programs such as SBA and rural development lending, shifts in economic conditions could significantly influence lending demand, credit risk profiles, and underwriting standards.

Short-Term Impact (0–12 Months)

In the initial phase of a prolonged conflict, the most immediate effect would likely come from energy price volatility and inflationary pressure. Rising fuel prices increase operational costs across several industries, while financial markets typically shift toward a risk-averse environment.

Key impacts on small businesses may include:

• Transportation and trucking companies: Facing sharp increases in diesel costs and reduced operating margins.
• Restaurants and food service businesses: Experiencing higher food and utility costs alongside reduced discretionary consumer spending.
• Tourism and travel-related businesses: small hotels, travel agencies, and tour operators witnessing demand slowdowns due to geopolitical uncertainty and rising travel costs.
• Retail businesses dependent on imported goods facing supply chain disruptions and inventory cost increases.

During this phase, lenders may adopt a more cautious stance, leading to tighter credit evaluations, increased focus on cash flow stability, and stronger emphasis on collateral coverage.

Mid-Term Impact (1–3 Years)

If the conflict persists, the economic environment may transition into a period characterized by persistent inflation, slower growth, and structural shifts in supply chains. Businesses and policymakers typically adapt by reshaping production strategies and domestic investment priorities.

Industries that may face continued pressure include:

• Small logistics and freight businesses with limited pricing power.
• Consumer discretionary sectors such as hospitality and leisure.
• Retailers heavily dependent on international sourcing.

However, several sectors may experience expansion due to shifting economic priorities:

• Domestic manufacturing and industrial suppliers, benefiting from supply chain reshoring.
• Energy and oilfield services, driven by increased domestic energy production.
• Agriculture and food processing businesses, as governments emphasize food security and rural investment.
• Warehouse and logistics infrastructure, including distribution centres and storage facilities supporting regional supply networks.

During this period, government-backed lending programs may become increasingly important as lenders rely on guarantees to manage credit risk while continuing to support small business growth.

Long-Term Impact (3–10 Years)

Over the long term, geopolitical conflicts often lead to structural economic transformations. Nations typically respond by strengthening domestic production capacity, investing in infrastructure, and accelerating energy diversification strategies.

Key long-term trends likely to influence small business lending include:

• Growth in renewable energy and energy infrastructure projects.
• Expansion of domestic manufacturing and automation as companies reduce reliance on global supply chains.
• Increased demand for defense-related manufacturing and technology suppliers.
• Greater investment in rural infrastructure, agricultural technology, and food processing facilities.

These changes may lead to sustained demand for financing among small businesses involved in manufacturing, agriculture, logistics, and technology-driven sectors.

How Underwriting Teams Can Prepare for Geopolitical Risk

In a rapidly evolving geopolitical and economic environment, underwriting teams must enhance their analytical frameworks to evaluate emerging risks and opportunities more effectively. Preparing for such scenarios requires a proactive and forward-looking approach.

Underwriting teams can strengthen their readiness by focusing on the following areas:

• Industry Sensitivity Analysis: Evaluate how a borrower’s business model responds to energy price fluctuations, inflation, and supply chain disruptions.
• Supply Chain Assessment: Identify reliance on imported inputs or international logistics channels that could face disruptions.
• Pricing Power and Margin Resilience: Assess whether the borrower can pass rising costs to customers without significantly impacting demand.
• Liquidity and Working Capital Adequacy: Analyze cash reserves and working capital cycles to determine resilience during periods of economic volatility.
• Scenario-Based Risk Analysis: Incorporate stress testing for fuel price increases, inflation shocks, and demand slowdowns.

By strengthening these analytical capabilities, underwriting teams can continue to support responsible lending while helping financial institutions navigate periods of geopolitical uncertainty and economic change.

In summary, while a prolonged U.S.–Iran conflict would introduce short-term volatility and challenges for several small business sectors, it may also accelerate structural shifts that create new opportunities in manufacturing, energy, agriculture, and infrastructure. For lenders and underwriting professionals, adapting credit evaluation frameworks to incorporate geopolitical and macroeconomic risk factors will be critical to maintaining resilient and sustainable lending practices.

For financial institutions supporting government-backed lending programs, strengthening operational frameworks around SBA lending can further improve underwriting efficiency and risk management. Learn more about SBA lending support:
https://decimalpointanalytics.com/what-we-do/lending-operations/sba-lending-outsourcing-services