In a high-inflation environment, infrastructure assets behave differently compared to other sectors. Toll roads, for example, often adjust toll rates in line with inflation. In an inflationary environment, cash flows are further likely to increase due to increasing traffic volumes. This relationship - the impact of inflation on the credit rating of toll roads is vital to investors and to stakeholders that provide financing of infrastructure.

Understanding the Current Credit Trends on Toll Road Projects

Credit rating agencies generally evaluate toll road projects based on factors such as an increase in traffic (more vehicles using the road), whether there are rules to raise toll prices in the future, what terms exist in the project contract, and how any financial risks are managed.

Similarly, CRISIL Ratings pay special attention to how well a road has been maintained, what kind of cash-flow cushion exists, and if repayments to lenders are set up clearly and reliably.

● For the National Highways Authority of India (NHAI), the long-term rating is [ICRA] AAA (Stable).

Many toll road projects’ Highways Infrastructure Trust (HIT) has been assigned a “CRISIL AAA/Stable” rating for its Non-Convertible Debentures or NCDs. These are fixed-income debt instruments issued by companies to raise long-term capital.

CRISIL Ratings has highlighted this strong rating based on factors such as geographic diversification, a solid toll collection track record, and a healthy Debt Service Coverage Ratio (DSCR) of approximately 3× for fiscal year 2026.

Why Is Inflation a Potential Credit Booster for Toll Roads?

One of the fundamental mechanisms that links inflation with toll road performance is the ability of dealers to increase tolls in line with inflation indices or negotiated escalation clauses. For many tolled roads, a rise in the Wholesale Price Index (WPI) or Consumer Price Index (CPI) triggers higher toll rates.

A report by CRISIL, years ago, noted that “price rise increases the credit quality of such motorways or toll roads.”

When inflation rises:

● Toll revenues may increase not just from greater traffic but from higher per-unit toll rates (i.e., inflation-driven toll adjustments).

● Projects with toll escalations built into their concession agreements see revenue growth even if traffic growth is moderate.

This translates into better cash flows, stronger debt servicing ability, and therefore improved project rating potential.

Normal inflation is usually accompanied by increased economic activity and greater commercial movement of vehicles, which increases toll road traffic. When volumes increase, toll collections increased. According to a Fitch Ratings report, robust traffic increase in India has played to the credit profile of toll road operators.

Toll roads are favourable infrastructure finance assets because of inflation-linked escalation and predictable cash flows. Long-concession projects and projects in which the toll is inflation-linked tend to give the lender and bondholder better stability, minimising the chances of loss.

Inflation Impact on Toll Roads: Credit Drivers vs Risks

How Does the Trend of “Toll Roads to Get Higher Credit Rating Rates” Play Out?

When a project demonstrates:

● Regular toll hikes tied to inflation,

● Strong traffic growth, and

● Robust coverage metrics (DSCR, debt/EBITDA),

Then rating agencies may award higher ratings, or maintain a higher rating with a more favourable outlook. This is the core of the phrase “toll roads to get higher credit rating rates.”

Higher credit ratings lower borrowing costs for the project company, which means:

● Lower interest rates on highway bonds or infrastructure debt

● Increased investor appetite for infrastructure credit given predictable and inflation-hedged cash flows

● Better terms for refinancing or expansion, enhancing long-term infrastructure financing viability

What Are the Key Risks and Conditions to Watch?

When examining the effects of inflation on toll road projects, it is important to look beyond increasing toll revenues. The following interrelated risks and conditions may have an impact on overall credit results:

1. Toll Escalation Clauses and Authority Agreements

Not all concession agreements provide for uncomplicated inflation-linked toll hikes. If toll increases are subject to regulatory/traveller resistance or concession period limitations, then the inflation benefit may be dampened. This is emphasised by rating agencies in their methodology.

2. Traffic Volatility

High inflation may reduce discretionary travel or shift loads to alternate routes. If traffic growth falls short, even strong toll hikes may not fully compensate. Hence, traffic risk remains a key factor that can limit the potential uplift in toll road credit rating.

3. Cost Inflation

While inflation can help toll revenues, it also raises O&M (operations & maintenance) costs, land lease costs, and labour costs, which may offset revenue gains. Projects must manage cost inflation to ensure net cash flows remain robust.

4. Macro/Regulatory Risk

Unexpected changes in regulation (toll exemptions, changes in policy, etc.) may affect revenue. Inflation-driven benefits could also be destroyed due to any taxes to the regulatory body to limit toll increases.

Practical Implications for Investors and Project Sponsors

The impact of inflation-linked toll escalation extends beyond financial modelling. It directly influences investment attractiveness, credit ratings, and long-term funding access. Here’s how it affects key stakeholders:

For Investors in Highway Bonds

● Projects with inflation-linked escalation clauses may offer more resilient cash flows and lower credit risk.

● Higher ratings may improve bond yields (lower risk premium).

● When evaluating an investment, check for:

• Presence of toll escalation tied to inflation.
• Historical traffic performance.
• Debt structure (long-term, fixed vs floating, DSCR coverage).

For Project Sponsors / Developers

● Structuring concession deals with inflation-linked toll mechanisms creates favourable rating prospects for the project.

● There is a greater capacity to access stable long-term infrastructure financing when consistent traffic growth and cost management are demonstrated.

● A higher credit rating means cheaper funding, improving the margins and viability of the project.

Impact of Inflation on Toll Road Credit Ratings: Key Takeaways

Inflation generally has a positive impact on toll roads from a credit rating perspective. Higher toll rates and increased traffic typically improve cash flows, which strengthens a project’s ability to repay debt. Investments in highway bonds and road finance are enhanced when the investment structures and prices are well-planned and managed. Understanding inflation is thus an important factor when evaluating the quality of infrastructure credit.

FAQs

Why are toll roads getting better credit ratings?

Toll roads may receive improved ratings because inflation-linked toll escalation and increased traffic volumes enhance revenue visibility and debt servicing ability.

Do toll projects have high ratings?

Yes, many operational toll projects in India have high ratings (eg, AAA/Stable) when they demonstrate strong traffic track records, escalation mechanisms, and resilient cash flows.

How does inflation affect toll road finance?

Inflation may boost toll road finance by enabling toll rate increases, improving revenue, making debt servicing more predictable, and reducing refinancing risk.

What is the credit rating of Highway Infrastructure Limited?

Highway Infrastructure Limited has been reaffirmed with a CRISIL BBB/Positive rating for its long-term bank facilities and a CRISIL A3+ rating for its short-term bank facilities. The total amount rated stands at ₹156 crore, enhanced from ₹116 crore, reflecting moderate credit quality with a stable outlook for future performance.

Who gets money from toll roads?

Usually, toll roads are developed and operated by a Special Purpose Vehicle (SPV), a company created specifically for the project. The SPV collects toll revenue and manages expenses and debt payments.

When vehicles pay tolls to use a toll road, the money collected is first used to cover the project’s operating and maintenance costs. Once this is paid, the remaining funds, also known as net cash flows are used to repay any loans taken to build and maintain the road. Once these debts are cleared, the remaining funds are usually distributed to the equity investors or the project’s owners as profit/dividends.