How Banks Work in Colombia: Spread and Fees

Banks Are Businesses, Not Vaults

When you deposit pesos into your bank account, the money does not sit in a vault with your name on it. The bank uses your deposit — together with millions of others — to make loans, buy securities, and generate profit. Understanding this reality changes how you think about every interaction with your bank.

A bank has a simple core model: it borrows money cheaply (your deposits) and lends it at a higher rate (créditos de libre inversión, tarjetas de crédito, mortgages). The difference between what it pays you and what it charges borrowers is the spread bancario, the engine of bank profitability.

In Colombia, this model operates under the supervision of the Superintendencia Financiera de Colombia (SFC) and within a macroeconomic environment shaped by moderate inflation and BanRep’s monetary policy. The interest rates on both sides of the spread move with BanRep’s tasa de política monetaria, and all consumer lending is bounded by the tasa de usura — the legally mandated ceiling beyond which no lender may charge. This structure shapes every product and fee you encounter — explored further in the Colombian banking system lesson.

How Banks Make Money

The Interest Rate Spread

Suppose a bank pays you one rate on your CDT but charges a much higher rate on a consumer loan. That gap, multiplied across enormous volumes of deposits and loans, generates substantial revenue. When BanRep raises its tasa de política monetaria to contain inflation, both deposit rates and loan rates climb. When it cuts rates, both fall. Understanding this cycle helps you decide when to lock a CDT, when to take a loan, and when to wait.

Fees and Commissions

Beyond interest, Colombian banks earn significant revenue from fees:

• Account maintenance fees (cuota de manejo): Many checking accounts and packaged accounts charge a monthly fee. Savings accounts (cuentas de ahorro) generally have lower fees, and some digital banks charge none.
• ATM fees: Withdrawing from another network’s ATM typically incurs a charge, though BanRep rules cap these.
• Transfer fees: Many inter-bank transfers carry a small fee, though digital wallets and Bre-B transfers are increasingly free.
• Card fees: Annual credit card fees (cuota de manejo de tarjeta) and replacement charges.
• Insurance and packages: Banks often bundle insurance or service packages that add monthly costs.

Investment and Treasury Operations

Banks also profit by managing their own portfolios — buying TES (Colombian government bonds) and other securities, which pay predictable yields. These treasury operations generate income separate from customer-facing products and explain why banks may sometimes be cautious about lending when government paper offers attractive risk-free returns.

The Encaje: Why Banks Cannot Lend Everything

BanRep requires banks to keep a percentage of deposits in reserve — the encaje. This ensures banks always have enough liquid funds to meet withdrawals. Reserve requirements are higher for demand deposits (cuentas corrientes, cuentas de ahorro) than for term deposits (CDTs), because demand deposits can be withdrawn at any moment.

This creates the money multiplier effect: your deposit becomes a loan to someone else, who deposits it elsewhere, which gets lent again. Through this chain the banking system creates more money in the economy than BanRep originally issued. BanRep adjusts reserve requirements as part of its monetary toolkit, which directly affects how much credit is available in the economy.

CDTs and Loans: The Two Sides of the Bank

CDT (the deposit side)

The CDT (Certificado de Depósito a Término) is the primary savings instrument in Colombia. You lock pesos for a fixed term — commonly 30, 60, 90, 180, or 360 days — and receive a guaranteed interest rate at maturity. Because inflation in Colombia runs around 5%, savers watch whether the CDT rate offers a positive real return (rate minus inflation). When it does, your purchasing power grows; when it does not, you at least earn more than a zero-interest account. We cover these trade-offs in detail in savings options in Colombia.

Loans (the lending side)

On the lending side, banks offer créditos de libre inversión (personal loans), créditos de libranza (payroll-deducted loans), créditos prendarios (vehicle loans), and créditos hipotecarios (mortgages, often UVR-indexed). All are subject to the tasa de usura ceiling. For a deeper treatment, see the lesson on loans in Colombia.

How the BanRep Rate Affects Your Daily Life

BanRep’s benchmark rate sounds abstract but influences every product you use.

When BanRep raises rates:

• CDT and savings yields improve — your deposits earn more
• Consumer loan and credit card rates rise
• Borrowing becomes more expensive and the economy tends to slow

When BanRep lowers rates:

• Borrowing becomes cheaper
• CDT returns decline, sometimes below inflation
• Economic activity tends to pick up

Because Colombian rate cycles respond to global conditions as well as local inflation, following BanRep decisions helps you decide when to lock a CDT, when to take a loan, and when to invest in bonds versus cash.

Understanding the True Cost of Credit

Colombia does not use a single standardized total-cost measure like Argentina’s CFT, but you should always look beyond the headline nominal rate (tasa nominal anual, TNA) when evaluating credit. A loan may advertise a headline rate but charge additional fees, insurance, and administrative costs that raise the effective cost significantly.

Why the Full Cost Matters

Two credit products might both advertise similar nominal rates, but one adds mandatory insurance and fees that make it substantially more expensive. The total effective rate is what you actually pay. By law, Colombian lenders must disclose fees and terms; ask for the full annualized effective cost (tasa efectiva anual, TEA) and all fees before signing. Never compare only the headline rate. A lower effective annual cost means cheaper credit, period.

The Fogafín Deposit Guarantee

A crucial protection for Colombian depositors is Fogafín (Fondo de Garantías de Instituciones Financieras). If a regulated financial institution fails, Fogafín insures eligible deposits — including cuentas de ahorro, cuentas corrientes, and CDTs — up to $50 million COP per person per institution.

Key points to understand:

• The guarantee has a ceiling. Amounts above $50 million COP at a single institution are not covered, which is one reason larger savers spread funds across institutions.
• The guarantee covers deposits at banks and financial institutions regulated by the SFC.
• Fogafín does not insure against inflation eroding the peso value of your deposit.

Knowing the Fogafín limit helps you decide how much to keep in any single bank and reinforces why diversification matters for larger savings.

Common Bank Fees and How to Avoid Them

A few fees account for most of the money Colombians lose unnecessarily.

Account Maintenance

Packaged accounts and cuentas corrientes often charge monthly cuotas de manejo. To reduce costs, use a basic cuenta de ahorro or a digital bank with no maintenance fee. Avoid paying for features or insurance bundles you never use.

ATM Withdrawal Fees

Using another network’s ATM triggers charges. Plan withdrawals around your own bank’s network, withdraw larger amounts less often (while keeping security in mind), or rely more on QR and card payments.

Credit Card Costs

Annual credit card fees and revolving financing interest can be significant. Paying only the minimum is one of the most expensive habits in Colombian personal finance, since the effective rate on carried balances — while capped by the tasa de usura — is still substantial.

Insurance and Add-Ons

Banks bundle insurance into accounts and cards. Review what you actually pay for and cancel coverage you do not need.

How to Read Your Bank Statements

Your statement (extracto bancario) contains information most people ignore:

• Balance summary: opening and closing balances
• Transaction detail: every transfer, debit, card payment, and deposit
• Fees charged: all cuotas de manejo and service charges
• Interest earned or charged: CDT interest and any financing interest
• 4x1000 GMF: Colombia’s Gravamen a los Movimientos Financieros (a small tax on most financial movements)

Review your extracto monthly. Look for charges you do not recognize, fees that seem excessive, and spending patterns. Five minutes can save you real money by catching errors early. Tools like Finthy can automate this by connecting to your accounts, categorizing transactions, and flagging unusual charges.

What Banks Owe You

SFC regulations give you specific rights as a customer:

• Transparency. Banks must disclose the effective annual rate (TEA) and all fees before you sign.
• Free basic services. Basic savings accounts must be available at reasonable conditions as set by regulation.
• Complaint channels. You can escalate disputes to the SFC and consumer-protection authorities.
• Account portability. Some banking services allow you to move accounts; ask your bank about options.

Key Takeaways

• Banks profit mainly from the spread between what they pay on deposits (CDTs) and what they charge on loans.
• The encaje limits how much banks can lend, and BanRep’s tasa de política monetaria influences every interest rate in the economy.
• Colombia’s tasa de usura caps consumer lending rates, providing meaningful consumer protection — but legal rates can still be significant.
• Fogafín guarantees eligible deposits up to $50 million COP per person per institution, but does not protect against inflation.
• The CDT is Colombia’s main term-deposit savings product; compare its rate to inflation to assess whether you earn a real return.
• Use accounts with low fees; avoid account maintenance costs, unnecessary ATM charges, and paying only the credit card minimum.

In the previous lesson, you learned what money is and how inflation works in Colombia. In the next lesson, you will explore the different account types available to Colombian consumers.