RBI's Cash Paradox: Why Currency Keeps Rising Despite UPI Everywhere

You pay for chai on UPI — so why is more physical cash floating in the economy than ever? India’s currency in circulation reached ₹41.6 lakh crore in FY26, up 11.9%, even as UPI processed 241.6 billion transactions worth ₹314 lakh crore. RBI says this makes future currency demand harder to predict.

India's payment habits have changed quickly. UPI is now used for everything from small merchant payments to large transfers, yet cash has not disappeared.

In fact, currency in circulation continues to rise. That creates what economists call the cash paradox: digital payments are growing rapidly, but the amount of physical currency in the economy is growing too.

• Currency in circulation reached about ₹41.6 lakh crore in FY26, up 11.9%.

• UPI processed 241.6 billion transactions worth ₹314 lakh crore in FY26.

• The cash-to-GDP ratio has fallen even while the absolute amount of cash has increased.

• Cash can remain important for savings, precautionary needs and informal economic activity.

• The trend matters for how the RBI manages currency, liquidity and monetary policy.

RBI has also highlighted the issue of estimating the demand for currency when there is an increase in digital payment methods. According to the deputy governor of RBI, S.C. Murmu, the demand for currency in circulation keeps growing at a double digit even with the increase in digital payments.

The puzzle is not entirely new. The RBI has previously described the parallel growth of currency and digital payments as a currency demand paradox.

The numbers make the contrast clear.

According to SBI Research using RBI and NPCI data, currency in circulation rose 11.9% to ₹41.6 lakh crore in FY26. Currency with the public reached about ₹40.6 lakh crore.

At the same time, UPI continued to set records. NPCI data shows that UPI processed 23.2 billion transactions worth ₹29.9 lakh crore in May 2026 alone.

But looking only at the absolute amount of cash can be misleading. SBI Research estimates that the cash-to-GDP ratio fell from the pandemic-era peak of 14.4% in FY21 to 12.1% in FY26. So cash is increasing in rupee terms, but the economy is growing faster relative to that cash stock.

One reason is that cash is not used only for payments. Households and businesses can hold cash as a precaution, for emergencies or simply as a store of value.

The informal economy is yet another factor. Not all transactions have been digitized, especially for small businesses and parts of the economy where cash payments are more practical. There is an element of trust and convenience as well because cash can be used without a phone or a payment app.

However, according to a study conducted by RBI employees, there was a negative correlation between UPI usage and cash demand on a transactional basis. To put it into plain language, UPI can be used as a substitute for cash for individual transactions despite people holding more cash in total.

A rise in currency in circulation does not automatically mean higher inflation.

For the RBI, the bigger issue is forecasting. If consumers increasingly use digital payments but continue holding large amounts of physical currency, predicting demand for banknotes becomes more complicated. The central bank must therefore manage currency supply without assuming that digital payments will simply eliminate the need for cash.

The cash paradox offers investors a broader view of how India's economy is changing.

Strong UPI growth supports digital-payment, banking-technology and financial-infrastructure businesses, while continued cash demand shows India's digital transition is not a complete replacement of cash.

For investors, the useful takeaway is the coexistence of both systems. India's financial system can become increasingly digital while cash remains an important part of household and business behaviour.

The cash paradox in India is not an indication of the failure of UPI but rather of the fact that there are two types of money playing different roles. UPI is changing how payments work, while cash continues to be relevant when it comes to savings, precaution and informal transactions.

Ans. Cash & UPI can have separate uses. While digital payments are becoming more popular for routine transactions, cash may still be retained for emergencies, savings, and even situations where digital payments may not be so easy.

Ans. Currency in circulation reached about ₹41.6 lakh crore in FY26, according to SBI Research based on RBI data. It increased 11.9% during the year. However, the cash-to-GDP ratio declined to about 12.1%, showing that the economy has expanded faster than the stock of currency

Ans. Not necessarily. The absolute amount of currency can rise while cash becomes less important relative to the size of the economy. The declining cash-to-GDP ratio suggests that digital payments are replacing some cash transactions even as total currency demand continues to increase.

Ans. Not by itself. Higher currency in circulation does not automatically translate into higher inflation. Inflation depends on several factors, including demand, supply, credit conditions and how money moves through the economy. The cash paradox is more directly a challenge for understanding currency demand.

Ans. It shows that India's financial transition is not simply a move from cash to digital payments. Both systems are expanding in different ways. Investors can therefore view the trend as evidence of a financial system where digital payment infrastructure is growing while traditional cash demand remains significant.