A business credit card is a genuinely useful source of short-term revolving credit, but mismanaging it can quietly undo the benefit it’s meant to provide. Here are the mistakes worth avoiding.
1. Limiting it to emergencies only
A business credit card works just as well as a daily transactional tool as it does an emergency fallback. Some banks let you pre-fund the card and earn rewards on everyday spend like fuel and travel, value left on the table if the card only comes out during a crisis.
2. Not checking statements regularly
Regular review catches incorrect billing and suspicious transactions early, especially important once more than one employee has a linked card. As a business grows and delegates spending across a team, the responsibility for monitoring usage still sits with the owner or financial manager.
3. Paying only the minimum
Paying the full outstanding balance by the due date typically avoids interest entirely, often with an interest-free period of up to 35 days. Miss that window, and interest usually applies retroactively from each individual transaction date, not just from the due date.
4. Using the card for cash withdrawals or transfers
Cash withdrawals accrue interest immediately, with no interest-free grace period. Transfers from a credit card to a current account are typically treated the same way, an expensive way to move money that’s easy to overlook.
5. Relying on it for long-term debt
A credit card is a poor tool for financing needs that stretch beyond the short term. A dedicated business loan is usually a cheaper, more sustainable option for anything longer-term.
6. Mixing personal and business expenses
Blending the two creates real complications when it comes to tracking, accounting and eventually applying for further credit. Keep them strictly separate from the start.
Frequently asked questions
Should a business only use its credit card for emergencies?
No. Used properly, including for everyday spend where rewards apply, a business credit card is a genuinely useful daily transactional tool, not just an emergency fallback.
How long is the typical interest-free period on a business credit card?
Often up to 35 days, provided the full balance is paid by the due date. Miss that window, and interest is usually charged retroactively from each transaction date.
Is it ever a good idea to use a business credit card for long-term financing?
Generally no. A dedicated business loan is typically a cheaper, more sustainable option for financing needs beyond the short term.
Managing the card properly pays off
Used with discipline, a business credit card builds a genuinely useful credit profile that helps with future financing applications. Used carelessly, the same card quietly erodes cash flow through avoidable interest and fees.
Further reading: Your Definitive Guide to Understanding Cash Flow | South African Revenue Service for official record-keeping and tax compliance requirements
Originally published in August 2019. Updated September 2026 to refresh this business credit card guidance from FNB Business. The underlying mistakes and fixes remain durable.
