Two Cards Both Say Five Percent and Pay Very Different Amounts

Two cards advertise the same cashback percentage on the same category. You put the same spending through both for a year and the totals are nowhere near each other. The rate was never the thing doing the work.

The gap comes from the clauses around the rate: the monthly cap, the minimum spend needed to qualify, which merchants count, the base rate on everything else, and the annual fee. Two cards can match on the headline number and differ on all five, which is why an advertised rate is a starting point and not a comparison.

The five clauses that create the difference

Read these in the terms of both cards before deciding anything.

• The cap. A monthly cap on cashback in that category sets a ceiling. Once you cross it, extra spend earns the base rate. The card with the higher cap wins for anyone whose spending exceeds it.
• The minimum spend. If the good rate only applies in months where total spend crosses a threshold, then every quiet month pays the base rate on everything. Your yearly total depends on how many quiet months you actually have.
• The category definition. One card may count a broad set of merchants, another a narrow list of named ones. The transaction is matched by merchant category code, not by what the shop sells, so identical purchases can land differently on two cards.
• The base rate. Most of your spending is probably outside the headline category. A better base rate can outweigh a matching headline rate.
• The fee. A card with a fee has to clear that fee before it earns you anything at all.

How to compare them properly

The comparison only works if both cards are tested against the same spending, and that spending has to be yours. If one of them pays in miles, convert those first using what a mile returns on a flight you would book.

1. Pull twelve months of statements. Not one month, because spending is uneven and one good month multiplied by twelve flatters every card.

2. Sort your spending into the categories each card names. Do it separately for each card, since their definitions differ.

3. For each month and each category, calculate the cashback at the stated rate, then replace it with the cap if the cap is lower.

4. Check the minimum spend for that month. If you missed it, recalculate that month at the base rate.

5. Add the base rate earnings on everything else.

6. Total the twelve months, then subtract the annual fee.

You now have two annual dirham figures. That is the comparison. Everything before this step was marketing. If the two land close together, a welcome bonus and the spend target attached to it can break the tie.

Where the gap usually comes from

In practice one or two clauses dominate.

If your category spending is well above the level where the cap binds, the cap decides everything and the rate barely matters. Work out that level by dividing the monthly cashback cap by the rate.

If your monthly spending swings, the minimum spend clause decides it, because the months you fall short cost you the whole difference between the headline rate and the base rate.

If most of your spending sits outside the headline category, the base rate decides it, and the advertised number is close to irrelevant.

Knowing which of those applies to you is more useful than reading twenty card reviews. How the reward comes back matters too, since a catalogue voucher and statement cashback rarely price the same.

The part people skip

This arithmetic is not hard, it is just long. Twelve months, several categories, five clauses, two cards. Most people start it, get bored, and keep whatever card they already have.

That is the job Wealthwise does. It reads a card statement on your own device, keeps the file there and uploads nothing, then ranks 19 UAE cards from 8 banks against what you actually spend on, in dirhams. It shows the annual cost of using the wrong card for your pattern, which is the figure that makes the decision obvious.

It is advisory only. It does not move money, open accounts or apply for anything on your behalf, and it launches in early 2026.

Whatever comparison you run, confirm the current rates, caps, minimums and fees with each bank before applying. These terms differ by issuer and get revised, sometimes with little notice, and the annual figure you calculate is only as current as the terms you calculated it from.