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At a Glance
This piece is a response to a real question that came up in Reddit’s Singapore personal finance community, the kind I get some version of almost every week. Someone had been offered a personal loan and couldn’t tell whether the rate was fair and they were confused about how the interest was even calculated. It’s such a common sticking point that it’s worth answering in full here using their situation as the worked example.
The question behind this post
Someone with a clean credit record applies for a personal loan, gets offered 13% on a $20,000 loan over 48 months and stares at it wondering if 13% is high? How did the bank even land on that number? And when their own bank offers a credit to cash deal at 4.5% for the same amount, why is it less than half the rate and should they take it?
If it feels like every loan advert quotes a different kind of number and none of them line up. The whole thing turns on one fact that banks are not in a rush to explain interest rates and that they mean two different things depending on which number you’re looking at and mixing them up is how borrowers overpay. Below I’ll explain how the interest is actually calculated, whether 13% is fair for someone with strong credit and how to judge that tempting credit to cash offer.
Understanding the Two Rates: Flat Rate vs EIR
Every personal loan in Singapore carries two rates and MAS requires the bank to show you both.
The flat rate is the one in the advert where interest is calculated on your original loan amount for the entire tenure and it ignores the fact that your balance shrinks every month as you repay. It’s built to look small, for example on a $20,000 loan at a 5% flat rate over four years, the interest is simply $20,000 x 5% x 4, which is $4,000 total, giving a monthly payment of $20,000 plus $4,000 divided by 48 so $500 a month.
The Effective Interest Rate (EIR) is the number that actually matters. It shows the true annual cost because it accounts for you handing the money back bit by bit and it folds in processing and admin fees. Since you don’t have to use the full $20,000 for 4 years, the real cost as a percentage sits higher than the flat rate.
The rule of thumb I want every borrower to remember is the EIR usually runs about 2 times the flat rate. A 3% flat rate is roughly 5.5 to 6% EIR. A 5% flat rate is roughly 9 to 10% EIR.
Comparing Loan Matching Platforms in Singapore
Once you understand EIR, the fastest way to find out whether 13% is really your market rate is to see several offers at once rather than applying to banks one by one, where each application can leave an enquiry on your credit file.
Loan matching platforms let you compare personalised offers from multiple licensed lenders side by side. When weighing one platform against another, look at the size of the lender network, whether offers are shown as EIR, any cashback or rewards and whether there’s a price beat guarantee.
For someone with strong credit trying to work out if a 13% offer is fair, seeing a few EIRs together turns a confusing solo negotiation into a straight comparison. That’s the honest use of a platform like ROSHI. Not to borrow more, just to borrow on the best terms you can actually get.
What’s a High Interest Rate?
If that 13% is the EIR then for a $20,000 personal loan it’s on the higher side but not alarming. Typical bank EIRs for salaried borrowers with strong credit run from around 6% up to roughly 14% and anything under 9% is genuinely competitive. A 13% EIR tells me the pricing isn’t the sharpest available or something in the profile such as income, tenure or existing facilities is nudging it up.
If that 13% is a flat rate then the EIR behind it could sit well into the low to mid 20s%. For someone with excellent credit that’s expensive and it’s a clear signal to walk and compare.
So before you judge the offer, ask the lender if that’s the flat rate or the EIR? You cannot tell whether a deal is good until you know.
The Credit to Cash Question
On paper the 4.5% credit to cash offer demolishes the 13%. In reality it’s almost certainly the same flat versus EIR mismatch dressed up in a different product.
Credit to cash, which your bank might call a funds transfer drawn against your card limit, tends to quote a low flat or promotional rate over a short window. It may still be the better deal but only once you’ve checked it properly, which brings us to what actually matters before you sign anything.
Key Considerations Before You Accept an Offer
Before choosing between a personal loan and a credit to cash plan, these are the points that decide whether an offer is genuinely good or just dressed up to look that way.
Flat Rate or EIR
Always establish which one you’ve been quoted. Then compare EIR to EIR, never flat against EIR.
Length and promo period
A rate that only holds for 12 months before reverting to standard card interest, often 26% a year or higher is a completely different product from a fixed 48 month loan.
Processing and admin fees
Credit to cash plans and personal loans often carry a one time fee that quietly lifts the true cost. The fee is a big part of why the EIR is higher than the advertised rate.
Early repayment terms
If you might clear the loan early, check for a penalty or a clawback of any promo cashback. A slightly higher headline rate with no early-repayment penalty can beat a lower one that locks you in.
What happens if you miss a payment
On some credit to cash plans the whole balance drops back onto punitive card interest.
Your credit score is a lever, not a guarantee
A strong CBS score, on the 1000 to 2000 scale with the top band around 1911 to 2000, is the single biggest influence on your rate. Income, tenure and existing unsecured debt all feed in which is why a spotless record can still return a higher number than expected.
Conclusion
If a bank offers you 13%, the first move is not to accept or reject it, it's to ask whether that's the flat rate or the EIR because the two tell completely different stories. Thirteen percent is expensive if it's a flat rate and mid to high if it's an EIR for a strong credit borrower. The 4.5% credit to cash offer may genuinely be cheaper but only once you've converted it to EIR and total dollar cost and checked the promo period, fees and reversion rate.
A strong credit score is worth a lot here, though it helps rather than guarantees. The most reliable way to know you're getting a fair deal is to compare several EIRs side by side before committing, rather than accepting the first number you see.
This article is general information not financial advice. Rates and terms change, so verify current figures with specific lender and read lender terms & conditions before signing.
