What is a business debit card? Singapore guide (2026)

Key takeaways:

• A business debit card is a payment card linked to your company account. It pays for expenses directly from available funds, with no credit line and no interest.

• The account behind the card shapes your costs. A card linked to a SGD account can treat overseas spend very differently from one linked to a multi-currency account.

• Airwallex Corporate Cards are Visa business debit cards that spend from your multi-currency balances, with no international transaction fees on currencies you hold.

What is a business debit card? Simply put, it’s a payment card linked to your company’s account that takes money straight from your available balance. There is no credit line and no interest.

This guide covers how a business debit card works, the pitfalls to watch for, and how to manage spending well. It is written for Singapore business owners and finance teams.

What is a business debit card?

A business debit card is a payment card linked to your company’s account.

It pays for business expenses directly from the funds in that account. Each purchase comes out of your available balance, so you can only spend what you already hold.

The card is issued to the business, not to an individual. Owners and employees can use it for work costs.

Unlike a credit card, it does not lend you money, so there is no interest and no balance to repay later. Banks and fintech providers both issue business debit cards, as physical or virtual cards.

You may see the same product called a company debit card or a corporate debit card. “Business expense card” is a wider term that covers credit, debit, prepaid, and virtual cards.

For a closer look at those categories, read our guides on what a corporate card is and how to choose a business expense card in Singapore.

How does a business debit card work?

A business debit card checks your balance, then pays the merchant from your account. It takes seconds, but a few details decide whether a payment goes through.

Here’s what happens when you or your team pay with the card:

1. The cardholder taps, inserts, or enters the card details at a merchant.

2. The merchant sends a payment request through the card network to the card issuer.

3. The issuer checks that your account has enough available funds and that the payment fits your limits.

4. If it does, the payment is approved and the amount leaves your balance. If not, it is declined.

What happens when your balance is too low

A debit card has no credit line to fall back on. If your available balance is lower than the payment, the card is declined, even if funds are due to arrive later that day.

Keep a buffer for large supplier payments and recurring costs such as software subscriptions.

How pre-authorisation holds affect your cash

Some merchants, such as hotels and car rental companies, ask your issuer to set funds aside before the final bill is known. This is called a pre-authorisation hold.

With a pre-authorisation hold, your available balance drops straight away, though the merchant has not been paid yet. The funds return once the merchant finalises the charge or the hold expires. If your team travels, expect a lower balance than usual until holds clear.

What happens when you spend in another currency

If your account holds the currency you are paying in, the card can usually spend from that balance directly. If it does not, the provider converts your funds at its own exchange rate, and a fee may apply.

This is why the account linked to your card matters as much as the card itself. Check how your provider handles foreign currency spend before you rely on it overseas.

Looking for a business debit card with low FX fees? Airwallex Business Debit Cards let you spend directly from your multi-currency account balances, with 0% FX fees when spending in a currency you already hold.

How business debit cards compare with other card types

Business cards come in a few different types, each with its own way of handling payments:

• Debit cards: Spend money directly from your business account.

• Credit cards: Borrow money for purchases and pay it back later.

• Charge cards: Pay for purchases upfront on credit, but clear the full balance each billing cycle.

• Prepaid cards: Load money onto the card in advance and spend from that balance.

Virtual and corporate cards are a little different. They describe how a card is issued or used, rather than where the money comes from.

A virtual card is digital-only, while a corporate card is issued to a business. Either can use debit or credit funding. For a closer look, see our guides to corporate cards and business expense cards.

Common pitfalls with business debit cards

Business debit cards make it easier to keep spending under control, but there are a few things worth watching out for. Here are some common drawbacks to consider:

Your linked account affects overseas fees

The cost of spending overseas depends on more than just your debit card. It also depends on the account linked to it and how your provider handles foreign currency transactions.

Some providers let you spend directly from a multi-currency balance without additional FX conversion fees, while others charge a fee or apply their own exchange rate when converting your money. The same card may also have different FX charges depending on the type of account it's linked to.

Before using your card abroad, check which currencies you can hold, whether transactions are deducted directly from those balances, and what fees apply when a conversion is needed.

No annual card fee doesn't mean no account fees

A business debit card may come with no annual fee, but that doesn't mean it's free to maintain. The linked business account may still have monthly maintenance fees or other charges. Check the account's fee structure as well as the card's before signing up.

Looking to avoid ongoing account fees? Airwallex lets you issue business debit cards on its free Explore plan, with no setup fees, monthly fees or minimum balance requirements.

You don't get the payment flexibility of a credit card

With a credit card, you can make a purchase now and pay it off weeks later. In contrast, a debit card deducts the money from your account straight away.

This can be a drawback if you regularly pay suppliers before receiving payments from customers, as it leaves you with less cash on hand.

Debit card spending won't build your credit history

Since you're spending your own money rather than borrowing, debit card transactions don't establish a repayment history. If you plan to apply for business financing down the road, having a credit product alongside your debit card may help you build a credit record.

All cards draw from the same account balance

When multiple employees have debit cards linked to the same account, they all draw from the same pool of money.

A large purchase by one employee could leave insufficient funds for everyone else's transactions. Setting individual spending limits helps prevent one cardholder from using up too much of the available balance.

How to use a business debit card well

A few simple habits can make business debit cards easier to manage, especially as you add more employees and cards to the account.

• Set spending limits for each card. Use individual spending limits and merchant restrictions to make sure employees can only spend what they need for their roles.

• Use virtual cards for subscriptions and regular vendors. Assigning a separate card to each vendor makes it easier to track payments. You can also cancel or freeze one card without disrupting other payments.

• Collect receipts as you go. Ask employees to upload receipts as soon as they make a purchase, rather than chasing them down at the end of the month.

• Check transactions every week. A quick weekly review helps you spot unexpected charges, duplicate payments or errors before they become harder to track.

• Cancel cards as soon as employees leave. Freeze or cancel their cards on their last working day to prevent any further spending. Keep a record of who holds each card so you can easily check which ones need to be cancelled when someone leaves.

Issue business debit cards in 60+ countries with Airwallex

If your business pays overseas suppliers, manages subscriptions across multiple currencies or has employees making purchases in different countries, Airwallex’s business debit cards are the best option for you.

Simply open an Airwallex account to start issuing cards to your team. Each card is linked to your multi-currency account, so you can avoid FX fees when spending from currency balances you already hold.

You can issue physical and virtual Visa debit cards to employees in 60+ countries, without needing to manage a separate account for each card. Key features include:

• 0% FX fees when spending in a currency you already hold.

• Automatic currency conversion when you don't have enough of the transaction currency in your account.

• Individual spending controls, including per-card limits and merchant restrictions.

• Instant card management, with the ability to freeze or cancel cards and issue single-use virtual cards.

• Real-time transaction tracking to see what your team is spending and when.

• Simpler expense management with expense syncing to your accounting software.

• Digital wallet support through Apple Pay and Google Pay.

You can open an Airwallex account fully online; there are no setup fees or monthly fees on the free Explore plan.

Frequently asked questions

Is a business debit card the same as a corporate card?

A business debit card is not exactly the same as a corporate card, but it is one type of corporate card. A corporate card is any card a business issues for staff to use, and it can be funded by debit or credit. A business debit card is funded directly from your company account balance.

What is the difference between a business debit card and a personal debit card?

The main difference between a business debit card and a personal debit card is the account behind it. A business debit card is linked to a company account, while a personal debit card is linked to an individual’s account. Using a business debit card keeps business and personal spending separate, so your records stay clean. Business debit cards can also usually be issued to several team members.

Can I use a business debit card for personal expenses?

You should not use a business debit card for personal expenses. The card is meant for business costs, and mixing in personal spending makes your records harder to reconcile and complicates tax time. Keep a personal card for personal costs, and use merchant restrictions on your business cards to reduce the chance of misuse.

Can a business debit card be used overseas?

A business debit card can be used overseas if it runs on a global network such as Visa or Mastercard. The cost of overseas spending depends on the account linked to the card and how your provider handles foreign currency. Check these details before you travel or pay overseas suppliers.

Can employees have their own business debit cards?

Yes, employees can have their own business debit cards. Many providers let you issue a card to each team member with its own spending cap. With Airwallex, you can issue physical and virtual cards to your team and set limits on each card.

Do business debit cards have spending limits?

Yes, business debit cards have spending limits, and they can only spend what is available in the linked account. The issuer sets a default limit, and many providers let you customise limits by card, time period, or merchant type. Most Airwallex cards have a default transaction limit of US$50,000, which you can customise for each card.

Sources:

1. https://www.dbs.com.sg/sme/day-to-day/business-cards/dbs-visa-business-advance-plus-debit-card