# Cash Back Calculator Calculate credit card cash back rewards across multiple spending categories. Enter categories as 'name, monthly spend $, cash back %' per line. Shows monthly and annual cash back per category, total rewards, effective cash-back rate, and a comparison against a flat-rate card. > Canonical page: https://elysiatools.com/en/tools/cash-back-calculator - **Category:** Finance - **Keywords:** cash back, credit card, rewards, cashback, credit card rewards, spending, categories, finance ## Overview The Cash Back Calculator helps you evaluate credit card rewards by analyzing your monthly spending across custom categories. By inputting your category names, monthly expenditures, and cash back percentages, you can instantly calculate your total monthly and annual rewards, determine your effective cash-back rate, factor in annual fees, and compare your net earnings against a flat-rate rewards card. ## Inputs - **Categories (one per line: name, monthly spend $, cash back %)** (textarea): e.g. Groceries, 600, 6 Gas, 200, 5 Dining, 300, 4 Other, 800, 1 - **Flat Rate Comparison Card (%)** (number): e.g. 2 - **Annual Fee ($)** (number): e.g. 95 - **Decimal Places** (number) ## When to use - When comparing a new category-based rewards credit card against your current flat-rate cashback card. - When evaluating whether a credit card's annual fee is justified by its higher category cashback rates. - When planning a monthly household budget and estimating potential annual credit card rewards. ## How it works - Enter your spending categories, monthly spend amounts, and cash back percentages in the text area, with one category per line. - Specify the comparison card's flat rate percentage and any annual fee associated with the category card. - Click calculate to generate a breakdown of monthly and annual rewards per category, the overall effective cash-back rate, and a net comparison against the flat-rate card. ## Use cases - Comparing a premium grocery and dining card against a standard 2% flat-rate card. - Calculating net annual rewards for a card with a $95 annual fee to see if your spending offsets the cost. - Optimizing monthly household budgets by identifying which spending categories yield the highest cash back. ## Frequently asked questions ### How do I format the spending categories input? Enter each category on a new line using the format: Category Name, Monthly Spend, Cash Back Percentage (for example: Groceries, 600, 6). ### Can I factor in credit cards with annual fees? Yes, enter the annual fee in the designated field, and the calculator will subtract it to show your net annual rewards. ### What is the flat-rate comparison card option? It compares your category card's net earnings against a single flat-rate card (like a standard 2% cash back card) to see which earns more. ### What does the effective cash-back rate mean? It is the total annual cash back earned divided by your total annual spending, expressed as a percentage. ### Can I adjust the precision of the calculated rewards? 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