Get the register basics

Whether you choose the most basic battery-operated cash register or an electronic model, it should perform the following functions: record sales and return transactions, add or subtract items on your customer's bill, provide price look-ups (PLUs), calculate correct change to customers, offer tax tables and print receipts from a built-in printer. Cash registers should also include a locked cash drawer.

I recommend: For the best selection of budget-conscious choices, visit cash register specialists such as RoyalSupplies.com or CashRegisterStore.com, which offers recommendations for small businesses, startups and kiosks. You can also order low-cost models at OfficeDepot.

Consider advanced features

Depending on your needs, you may want a cash register that connects to multiple registers and printers, prints graphic logos on receipts, provides better reporting capabilities and offers an LCD display.

I recommend: Cash Register Distributors Warehouse gives you the option to shop by price so you can see the features offered in higher-end models.

Restaurant-specific cash registers

Cash registers designed for the restaurant business generally offer spill-resistant keyboards and can be programmed for menu items. They also offer the ability to connect to printers in your kitchen so cooks receive orders automatically.

I recommend: Find restaurant cash registers at RestTech.com or POSNation.com.

Remember the software

Many cash registers require software so you can charge the proper sales taxes, run monthly or daily reports and identify sales by department or employee. Low-cost models often include basic software; higher-end registers can require software to be purchased separately.

I recommend: CashRegistersOnline.com offers a host of software programs that allow you to run reports, track inventory or integrate your data into QuickBooks.

Cash-challenged? Consider a second-hand model

If you want to get more features but can't afford the extra cost, look into a pre-owned cash register. Many suppliers sell refurbished machines at a major savings.

I recommend: Find low-cost, refurbished cash registers at CashRegisterStore.com.

Stock up on register supplies

Keep your cash register running at all times by maintaining an adequate supply of paper rolls or thermal paper rolls to print receipts and ink ribbons.

I recommend: Secure your cash register supplies at CashRegistersOnline.com or RoyalSupplies.com.