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Why a bigger credit-card spending average does not mean a better card

Published 2026-10-21

HDFC’s August payment total was higher than RBI’s “State Bank of India” row. The useful lesson is how to read the average, not how to rank your next card.

A comparison of issuer card counts and payments can be interesting market context. It becomes misleading when a portfolio-wide ratio is treated as what a typical customer spends, or as evidence that every card from one issuer is better.

What the August table actually says

RBI reports two different kinds of measure here: payments made during the month, and cards outstanding at month-end. Its outstanding-card definition adjusts for cards withdrawn or cancelled. It is not a count of unique customers or people who used a card that month.

RBI row label	Outstanding credit cards	August payments	Payments per outstanding card
HDFC Bank Ltd	27,099,584	₹61,322.49 crore	₹22,629
State Bank of India	22,957,917	₹35,312.73 crore	₹15,382

Source: RBI, August 2026 bank-wise card statistics, provisional. Monthly credit-card PoS, online and Other payment values are included. ATM cash withdrawals and debit-card activity are excluded. Figures rounded for display.

The checked HDFC payment total is ₹61,322.49 crore. The research lead quoted ₹61,233 crore. Keeping the correct source total matters even when the broad comparison still points in the same direction.

How the calculation works

RBI publishes payment values in ₹000. Add the three credit-card payment columns, then multiply by 1,000 to get rupees. Divide by 10,000 to convert the original ₹000 sum to crore.

HDFC: 217,602,772 + 395,622,159 + 0
    = 613,224,931 in ₹000
    = ₹613,224,931,000
    ÷ 27,099,584 cards ≈ ₹22,629 per outstanding card

State Bank of India: 141,486,262 + 211,640,999 + 0
    = 353,127,261 in ₹000
    = ₹353,127,261,000
    ÷ 22,957,917 cards ≈ ₹15,382 per outstanding card

Using unrounded figures, HDFC has 18.04% more outstanding cards, 73.66% higher monthly payments and 47.12% higher payments per outstanding card than the other row. These compare the two portfolios in August. They are not growth rates.

Why the average is not a typical budget

Imagine three fictional cards spending ₹20,000 each. Together they spend ₹60,000, so the mean and median are both ₹20,000.

Now imagine three spending ₹5,000, ₹5,000 and ₹50,000. The total is still ₹60,000 and the mean is still ₹20,000. But the median is ₹5,000. These groups are illustrations, not observed customers of either issuer.

The RBI table does not provide that distribution. Nor does this calculation identify active cards or deduplicate people with several cards. It divides a month’s flow of payments by a month-end stock of cards. Calling the result an active customer’s spending, a median, or a typical household budget would add information we do not have.

The definition also matters when comparing published issuer KPIs. SBI Card’s Q1 FY27 glossary describes its own spends-per-card metric using average cards outstanding and annualization. That is a different period and denominator from the one-month/end-month ratio here. The values should not be placed side by side as if they measure the same thing.

Bring the comparison back to your spending

Suppose your monthly budget is ₹20,000. One version contains ₹12,000 of groceries and ₹8,000 of other purchases. Another contains ₹12,000 of travel and ₹8,000 elsewhere. The issuer-wide average cannot calculate the rewards from either budget.

For a useful card comparison, identify the exact variant and check which purchases qualify, merchant-category and item exclusions, shared caps and reset periods, fees plus applicable taxes, and the costs or restrictions on a redemption you can actually use. Availability and effective dates matter too. Temporary offers belong in a separate calculation from standard benefits.

There is no assumed reward rate or savings total in those two budgets. No individual card has been recommended here.

What we cannot explain from these rows

The table alone cannot establish that the difference was caused by wealthier customers, larger limits, premium cards or a different corporate-card mix. Those are hypotheses requiring matched issuer evidence for the relevant period. They are not conclusions to borrow from replies to a social post.

Likewise, the fresh discussion does not make August’s numbers current customer behaviour or establish search demand. This is a dated snapshot, not a live ranking.

Use portfolio statistics to understand scale. Use your own eligible spending and the exact card’s terms to assess suitability.

Sources and scope

RBI: August 2026 ATM, Acceptance Infrastructure and Card Statistics. Month, provisional status, numbered columns, units and both rows independently checked.
SBI: Affiliates. Establishes the separate SBI Card subsidiary, not an explicit August statistical crosswalk.
SBI Card Q1 FY27 investor presentation, printed p29. Used for denominator definitions, not as August data.

Sources checked 20 October 2026. August 2026 RBI data are provisional. The RBI row is labelled “State Bank of India”; an explicit August reporting crosswalk to SBI Card has not been established. AI-assisted research and drafting; editorially reviewed. No specific card’s benefits, fees or offer terms are asserted. How we rank cards.

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