What is Merit 3?
Mastercard uses a number of variables such as card type (credit or debit), card category (core, rewards, etc.) and processing method (card present or card not present) to determine the interchange rate that will apply to a transaction. Merit 3 (or Merit III) refers to several Mastercard interchange categories for credit and debit card processing fees. It specifically pertains to “card present” transactions. That is, to payments where you physically run the card through a machine. The actual entry method can include swiping a magnetic stripe card, dipping a chip card, or tapping a contactless payment, but it must be processed in one of those manners. It cannot be “keyed” and still qualify for Merit III. It also applies to multiple card types: consumer credit, debit, and prepaid Mastercards. In that sense, Merit 3 qualification has more to do with how a transaction is processed than what kind of card is being processed. As noted above, Merit III means that a transaction is processed by using a piece of electronic equipment such as a credit card machine to read and transmit the information on the card’s magnetic strip. Let's take a look at the current rates and fees. (Subject to change at Mastercard's discretion.)Merit 3 Rates - Base
Since multiple card types have Merit III interchange categories, I’ve broken them down by credit, debit, and prepaid. Additionally, credit splits further and Merit III has categories for both non-rewards cards (called “core”) and rewards cards. (Called “Enhanced,” “World,” “World High Value,” and “World Elite.”) Transactions made using a Mastercard that produces “rewards” for cardholders (such as airline miles or cashback) will incur different rates and fees.Merit 3 Base for Consumer Credit
Consumer credit cards (including non-rewards and rewards cards) will be charged according to the card type.| Core Rate | Enhanced Rate | World Rate | World High Value Rate | World Elite Rate |
| 1.65% + $0.10 | 1.80% + $0.10 | 1.90% + $0.10 | 2.30% + $0.10 | 2.30% + $0.10 |
Merit 3 Base for Prepaid and Debit
Debit and prepaid cards incur different rates and fees than credit cards.| Volume Rate | Per-Transaction Fee | |
| Merit 3 Base (Debit) | 1.05% | $0.15 |
| Merit 3 Base (Prepaid) | 1.15% | $0.15 |
Credit Tier Thresholds
In addition to "Base" Merit 3 interchange, there are tiers based on annual minimum volume thresholds. Those tiers are higher than the volumes small businesses typically process, and so many businesses aren't eligible for those rates. The Merit III minimum yearly thresholds for credit cards are as follows:- Tier 1: $1.8 billion / year
- Tier 2: $1.25 billion / year
- Tier 3: $750 million / year
If you don’t have volume to meet the minimum threshold for the lowest tier (tier 3), your eligible Merit III transactions will qualify for the “Base” category.
Debit and Prepaid Tier Thresholds
As with credit, Mastercard debit and prepaid Merit III categories have thresholds for the various tiers. For debit and prepaid interchange purposes, the Merit III tier thresholds are as follows:- Tier 1: $400 million / year
- Tier 2: $275 million / year
- Tier 3: $175 million / year
Tiered Credit Merit III Interchange Fees
For transactions using a Mastercard that produce “rewards” for cardholders (such as airline miles or cashback) there are different rates and fees. Depending on the rewards card, it may fall into the category Enhanced, World, World High Value, or World Elite. In the table below, you’ll see that the Merit III tiers still apply.| Core | Enhanced | World | World High Value | World Elite | |
| Tier 1 | 1.43% + $0.10 | 1.43% + $0.10 | 1.53% + $0.10 | 2.05% + $0.10 | 2.05% + $0.10 |
| Tier 2 | 1.48% + $0.10 | 1.48% + $0.10 | 1.58% + $0.10 | 2.10% + $0.10 | 2.10% + $0.10 |
| Tier 3 | 1.55% + $0.10 | 1.55% + $0.10 | 1.65% + $0.10 | 2.15% + $0.10 | 2.15% + $0.10 |
Mastercard’s interchange can look a little complicated. Essentially, you’d just need to know your Merit III tier level, and then only look at that row. If you don't qualify for the tiers, you just need to look at the base table earlier in this article.
Keep in mind that this is just the interchange fee. Since interchange is only one component of your total processing costs, the actual fees you pay overall will be higher.
These rates come directly from Mastercard’s published interchange table and are subject to change.
These rates apply to unregulated debit card transactions. Regulated debit card transactions (that is, transactions made with a debit card issued by a bank that has more than $10 billion in assets) have different interchange fees that are capped by law.
Since each processor can choose how to display the interchange categories, here are some of the common abbreviations you may see for rewards Merit III.
Tiered Debit and Prepaid Merit 3 Interchange
While there are still three tiers for debit and prepaid cards, the tiers are the same rate for both debit and prepaid. Only the base tier has different rates for debit and prepaid, as seen in the table above for base merit 3. Below you can see the rates for both prepaid and debit.| Volume Rate | Per-Transaction Fee | |
| Merit 3 Tier 1 | 0.70% | $0.15 |
| Merit 3 Tier 2 | 0.83% | $0.15 |
| Merit 3 Tier 3 | 0.95% | $0.15 |
Merit 3 Interchange Requirements
As with all interchange categories, you’ll need to meet certain requirements to receive Merit III rates. If a transaction fails to meet criteria, it can “downgrade” to a more expensive interchange category. For a transaction to qualify for Merit III, it must be:- Settled within one day of authorization
- Processed by electronically reading information from a customer’s card
Statement Abbreviations
On monthly processing statements that show interchange categories, the Merit III categories may be abbreviated. Processors can use their own names or abbreviations. However, here are some common ones you may see:- MERIT III (for Merit III Base credit)
- MER3 T1 C (for Merit III tier 1 credit)
- MER3 T2 C (for Merit III tier 2 credit)
- MER3 T3 C (for Merit III tier 3 credit)
Since each processor can choose how to display the interchange categories, here are some of the common abbreviations you may see for rewards Merit III.
- ENH MER 3
- MCW MERIT3
- HV MERIT3
- MWE MERIT3
- ENH MER3T1
- MCW MER3T1
- HVMERIT3T1
- MEW MER3T1
- ENH MER3T2
- MCW MER3T2
- HVMERIT3T2
- MEW MER3T2
- ENH MER3T3
- MCW MER3T3
- HVMERIT3T3
- MEW MER3T3
Debit and Prepaid Abbreviations
For debit and prepaid Merit III categories, you may see similar abbreviations as the non-rewards credit card categories above, just with a “D” or “PP” (for debit or prepaid) instead of C for credit. Some examples include:- MERIT 3 D
- MER3 T1 D
- MER3 T2 D
- MER3 T3 D
- MERIT 3 PP
- MER3T1 PP
- MER3T2 PP
- MER3T3 PP
