Summary
The Problem: Credit card rewards for rent payments depend on the platform's Merchant Category Code (MCC), often a generic code like 7399 that premium cards frequently exclude from bonus miles, resulting in poor earn rates.
The Cost: Paying a typical 1.83% fee for a low 0.4 miles per dollar (mpd) earn rate means you are effectively buying miles at a terrible Cost Per Mile (CPM) of 4.58¢ — far above their actual value.
The Action: Before paying any fees, you must call your bank to confirm the exact miles earn rate for the specific MCC used by a rent payment platform.
The Solution: For a predictable outcome, Rently uses an eGIRO payment system that bypasses MCC uncertainty entirely, offering a guaranteed earn rate and a competitive CPM of 1.33¢/mile.
You've set up your rent payment on a credit card platform, plugged in your premium miles card, and mentally budgeted the miles you're about to earn. But then doubt creeps in: does my card actually earn bonus miles on this transaction? If you've ever felt that sinking uncertainty, you're not alone. As one Redditor put it, "I feel lost on which cards to use for maximum rewards every time I make a purchase" — and with platforms that charge a processing fee, the stakes are much higher.
This post cuts through the noise. We'll decode the common Merchant Category Codes (MCCs) used for rent payments, show you exactly what each earn rate costs you, and introduce a more reliable alternative: Rently, a platform that sidesteps the guesswork entirely.
What Is a Merchant Category Code (MCC)?
A Merchant Category Code (MCC) is a 4-digit number, standardised under ISO 18245, assigned to every merchant by their acquiring bank. It tells your credit card issuer what type of business you're transacting with.
Why does this matter? Because your bank doesn't just look at the dollar amount when calculating rewards — it looks at the MCC. A transaction coded as "airlines" might earn 3 mpd on your travel card. The same amount coded as "business services" might earn only 0.4 mpd. Same card, same spend, wildly different outcome.
For rent payment platforms that process your payment via credit card, the platform's MCC is what your card sees — not your landlord's business category. That's the crux of the MCC problem.
The Common Culprit: MCC 7399
Rent payment platforms like CardUp often code transactions as MCC 7399 — Business Services Not Elsewhere Classified. This is a catch-all category for business service providers that don't fit neatly into more specific codes.
Here's what that means in practice for miles earn rates:
Earn RateCard TypeNotes0.4 mpdBase/general spendWorst case — usually uncategorised spend1.2 mpdMid-tier miles cardsTypical outcome for most premium cards3–4 mpdSelect cards with broad bonus categoriesRare; verify with your bank
According to a MileLion guide — a definitive Singapore reference on this topic — most premium miles cards land in the 0.4–1.2 mpd range on MCC 7399 when used on platforms like CardUp. The 4 mpd scenario exists but is card-specific and subject to change without notice.
This is not theoretical risk. DBS, for instance, added new reward exclusions in December 2025, reminding us that banks can and do shift the goalposts. Community discussions on Reddit echo this: users recommend cards like UOB PRVI Miles but caveat that earn rates can shift. As one user bluntly noted: "You can't beat a general spend card cashback % (it's too low to cover CardUp's fees). It's mainly used for miles." The implication is clear — if you're not earning meaningful miles, the platform's fee is a net loss.
The Math That Actually Matters: Cost Per Mile (CPM)
Miles aren't free — even when "earned." When you pay a processing fee to a rent payment platform, you're effectively buying miles at a certain price. The metric that cuts through the noise is Cost Per Mile (CPM): how many cents you pay per mile acquired.
For context, a KrisFlyer mile is generally valued at around 1.3–1.5 cents when redeemed for premium cabin flights. That means:
At 4 mpd: You're acquiring miles at 0.46¢ — well below intrinsic value. This is genuinely great.
At 1.2 mpd: You're at 1.53¢ — roughly fair value. Still viable if redemptions are high-value.
At 0.4 mpd: You're paying 4.58¢ per mile. You'd be better off doing almost anything else.
The danger zone is assuming your card earns at 1.2 mpd when it's actually capped at 0.4 mpd for MCC 7399. That's the "I don't trust that the information on card rewards is always accurate" problem in a nutshell. Before you commit to a platform, confirm your card's earn rate for that specific MCC directly with your bank — not from a forum post, not from last year's article.
If you do decide to proceed with a platform like CardUp, stack a promo code to reduce your effective fee and improve your CPM. MileLion maintains a current list of promo codes worth bookmarking.
The Alternative: Rently's eGIRO — No MCC, No Anxiety
If verifying MCC earn rates with your bank sounds like homework you'd rather skip, there's a structurally different option: Rently's eGIRO payment tier.
Here's why it sidesteps the MCC problem entirely: eGIRO is a direct bank-to-bank transfer mechanism. There is no credit card in the loop, which means there is no MCC. No category code, no bank-specific exclusion lists, no earn rate uncertainty.
Instead, miles are earned directly through Rently's partnership with HeyMax, in the form of Max Miles — a flexible currency that converts to major airline programmes. You earn Max Miles regardless of which bank you're with. No card required.
Credit Card Platforms vs. Rently: Which Should You Use?
Stick with other credit card platforms if:
You hold a card that you have personally confirmed with your bank earns 3–4 mpd on their specific MCC (e.g., 7399)
Your calculated CPM clears below 1.33¢ (especially with a promo code stacked)
You're comfortable monitoring for bank policy changes that could affect your earn rate
Choose Rently's eGIRO if:
You're not certain what your card earns on other platforms' MCCs
You value a consistent, predictable CPM over chasing promo codes and bank rule updates
Your best available card only earns 1.2 mpd on other platforms — at 1.53¢ CPM, Rently is already competitive
You need features other platforms don't offer, like deposit financing or rent deferral
Advanced note for card optimisers: If you're considering Rently's separate credit card payment tier (not eGIRO), it codes as MCC 5817 (Digital Goods). Worth knowing if you're mapping that against your card's bonus categories.
Bottom Line: Verify Before You Pay
The MCC code for your rent payment platform — often 7399 (Business Services NEC) — is what determines whether your payment is a miles goldmine or a fee-for-nothing expense. At 4 mpd, it's exceptional. At 0.4 mpd, it's a trap.
Before committing to a platform, call your card issuer and confirm your earn rate for that specific MCC. Don't rely on forum posts or articles from six months ago — bank exclusions change, and the consequences show up silently on your statement.
If you'd rather skip the verification loop entirely and earn a reliable 1.33¢/mile CPM on every rent payment, Rently's eGIRO tier is the clean, MCC-anxiety-free alternative. Same miles goal, none of the guesswork.
Frequently Asked Questions
What is the Merchant Category Code (MCC) for CardUp?
CardUp transactions are typically assigned Merchant Category Code (MCC) 7399, which stands for "Business Services Not Elsewhere Classified." This is a broad, non-specific category that many credit cards exclude from bonus miles calculations, often defaulting to a much lower base earn rate.
Why do rent payment platform MCC codes affect my miles earnings?
Banks use MCC codes to determine whether a transaction qualifies for bonus rewards. A common code like MCC 7399 ("Business Services") is often excluded from bonus categories on travel or rewards cards, meaning a transaction you expect to earn 3-4 miles per dollar might only earn the base rate of 0.4-1.2 mpd. This significantly impacts the value you receive after paying a platform's processing fee.
How can I check if my credit card will earn miles on a rent payment platform?
The most reliable way is to find out the platform's MCC and then call your bank's customer service hotline to ask about the rewards earn rate for that specific code (e.g., MCC 7399). Do not rely on past experiences or online articles, as bank policies can change. Explicitly asking for the earn rate for a specific MCC will prevent any unwelcome surprises.
What is a good Cost Per Mile (CPM) for paying rent?
A good Cost Per Mile (CPM) is generally considered to be below 1.5 cents per mile, as this is the approximate value of a KrisFlyer mile. A CPM below this threshold means you are acquiring miles for less than their redemption value. Anything above 2 cents per mile is usually a poor deal.
How does Rently offer a guaranteed way to earn miles on rent?
Rently's eGIRO payment tier bypasses the credit card system entirely, so there is no MCC code involved. Instead of relying on a card's variable earn rates, Rently uses a direct bank transfer and awards you Max Miles at a fixed, transparent rate. This results in a predictable CPM of 1.33¢/mile, regardless of which bank you use.
Is it worth paying a platform's fee if my card only earns base miles?
No, it is generally not worth paying a platform's processing fee if your card only earns the base rate (e.g., 0.4 mpd). At this low earn rate, your Cost Per Mile (CPM) could be staggering (e.g., 4.58¢ with a 1.83% fee), which is far more than the miles are worth. You would be better off paying rent directly without a fee.