Cashback Percentages That Look Big Until You Read the Cap

A card advertises a big cashback percentage and you assume the rest follows. Then the statement arrives and the credit is a fraction of what you calculated. The rate was real. The cap was doing the work.

Here is the rule that matters: a headline cashback rate tells you almost nothing on its own. What determines your annual return is the monthly cap on each category, the minimum spend needed to qualify, and the base rate you drop to once the cap is hit. Convert those into dirhams before comparing any two cards.

The four numbers behind every headline rate

Look for these in the terms, not in the advertisement:

• The rate itself, per category.
• The monthly cap on cashback earned in that category, expressed in dirhams.
• The minimum monthly spend required before the higher rate applies at all.
• The base rate paid on everything else, including spend above the cap.

A cap stated in dirhams of cashback is the one that binds. If a category caps at a fixed cashback amount each month, then above a certain spend the rate you are actually earning starts falling with every additional dirham you spend.

Turning a rate into an annual figure

The arithmetic is simple enough to do on paper, and it is the short form of the full month by month calculation. Use your own card's numbers rather than any example, since rates and caps vary by issuer and card.

1. Take your average monthly spend in that category, from your statement.

2. Multiply by the advertised rate. That is your uncapped monthly cashback.

3. If that figure is above the monthly cap, replace it with the cap.

4. Add the base rate earned on your spend outside the category.

5. Multiply the monthly total by twelve.

6. Subtract the annual fee, and subtract nothing else only if you are certain there are no other charges.

Step three is where most headline rates collapse. If your category spend is well above the level at which the cap binds, the extra spend earns the base rate, and your effective rate across the whole category is much lower than the number on the poster. When a credit comes in short and you cannot see why, work out which cap trimmed it.

Work out the spend level at which the cap binds: divide the monthly cashback cap by the headline rate. Below that spend, you get the advertised rate. Above it, you do not. That single figure tells you whether the card fits your life.

Where the minimum spend bites from the other side

Caps limit the top. Minimum spend requirements limit the bottom. A card may pay its best rate only in months where total spend crosses a threshold, and the months you spend less are the months you earn the base rate on everything.

Spending is uneven. A quiet month after a heavy one is normal. If a card only performs in months you spend a lot, your annual figure should reflect the months you did not, which means using twelve months of real statements rather than one good month multiplied by twelve.

Comparing two cards honestly

Once you have an annual dirham figure for each card, the comparison is trivial. Before that, it is guesswork.

Two rules keep the comparison clean:

• Use the same spending profile for both cards. Your profile, from your own statements, not an assumed one.
• Compare after fees. A card with a lower rate and no annual fee can beat a higher rate card with a fee, depending entirely on where your spend sits relative to the caps.

If the two annual figures land close together, the difference is not worth switching for. Application effort, credit checks and the disruption of moving standing payments all cost something.

Doing this without a spreadsheet

Twelve months of statements, several categories, caps and minimums per card, and then the same again for every card you might switch to. That is a lot of manual work, which is why most people never do it and keep whatever card they were sold.

Wealthwise exists to do that step. It reads a card statement on your own device, uploads nothing, and ranks 19 UAE cards from 8 banks against what you actually spend on, in dirhams. It also shows the annual cost of staying on the wrong card, which is the figure most people have never seen for themselves.

It is advisory. It does not move money or open accounts, and it launches in early 2026. Whatever the ranking says, confirm current rates, caps and fees with the bank before applying, since these change and differ by issuer.

The habit is worth keeping even without a tool. When you see a cashback percentage, ask for the cap in the same breath. The two numbers only mean something together.