What internal controls should a controller implement?
Segregation of duties is the foundation. No single person should control a transaction from start to finish. The person who approves vendor invoices shouldn’t also be the one issuing payments. The employee handling customer deposits shouldn’t reconcile the bank account. When one person handles everything, mistakes go unnoticed and fraud becomes easy.
For smaller businesses where full segregation isn’t practical, compensating controls fill the gap. A business owner reviewing bank statements independently, surprise cash counts, or requiring dual signatures on checks above a certain threshold all provide oversight when you don’t have enough staff to separate every function.
Approval workflows prevent unauthorized spending. Purchase orders should require approval before commitments are made. Invoices should be matched to POs and receiving documents before payment. New vendors should go through a verification process before being added to the system. These controls catch errors before money leaves the account.
Bank and account reconciliations need to happen monthly at minimum. Someone other than the person handling cash should review reconciliations. Reconciling items older than 30 days deserve investigation. Unexplained variances are a warning sign that something went wrong or someone is covering tracks.
Access controls limit who can do what in your systems. Not everyone needs the ability to add vendors, change pay rates, or adjust journal entries. Controller-level oversight includes reviewing user permissions periodically and removing access when employees change roles or leave the company.
Physical controls still matter. Check stock should be locked up. Petty cash should be counted regularly. Inventory should be secured and counted against records. High-value equipment should be tracked. These basic protections prevent opportunistic theft.
Documentation requirements create an audit trail. Every transaction should have supporting documentation. Journal entries need explanations. Adjustments need approval. When you can trace any number back to its source, you catch problems faster and can defend your records if questioned.
Financial reporting controls ensure accuracy. Month-end close procedures should be documented and consistent. Unusual fluctuations should be investigated before financial statements are finalized. Estimates and judgments should be reasonable and supported.
The right controls for your business depend on your size, industry, and specific risks. A company with significant cash transactions needs stronger cash handling controls. A business with high-value inventory needs better physical and counting controls. The controls should match where your actual exposure exists.
Implementing controls is only half the job. They need to be monitored to make sure people follow them. A great policy that nobody enforces provides no protection. Boca Raton advisory services that include controller support should evaluate existing controls, identify gaps, and ensure the controls in place actually work as intended.
The goal isn’t bureaucracy. It’s having enough structure that errors get caught, fraud becomes difficult, and you can trust the numbers you’re using to make decisions.
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