Finance & Money
Cashback Calculator
Calculate capped bonus spend, excess category spend, gross bonus and base cashback, realized cashback, net cashback, and effective reward rate.
Spend earning bonus rate-
Category spend above cap-
Gross bonus-category cashback-
Base cashback on other and excess spend-
Total gross cashback-
Cashback after redemption loss-
Realized cashback less annual fee-
Net cashback divided by total spend-
Decision view
Cashback cap decomposition and net reward
Cashback cap decomposition and net rewardCapped bonus spend, excess category spend, base rewards, redemption loss, annual fee, and net cashback are reconciled on one reward path.
Exact scenario comparisonAnnual bonus-category spend changes while all other entered assumptions remain constant.
| Annual bonus-category spend | Spend earning bonus rate | Category spend above cap | Gross bonus-category cashback | Base cashback on other and excess spend | Total gross cashback | Cashback after redemption loss | Realized cashback less annual fee | Net cashback divided by total spend |
|---|
How to use Cashback Calculator
- Enter category spend, category rate, other spend, and base rate.
- Enter the bonus cap, annual fee, and redemption loss.
- Use the cap visual to see how much spend earns the better rate.
Calculator guide
Understanding Cashback Calculator
Cashback value depends on caps, category spend, base-rate fallback, redemption loss, and annual fee; a headline reward percentage is not enough.
Calculation method
How the calculation works
Respect the entered bonus-category cap, move excess category spending to the base rate, and reconcile gross, realized, and fee-adjusted cashback. Apply the bonus rate only to spend under the entered cap, move excess category spend to the base rate, reduce gross rewards by redemption loss, then subtract the annual fee.
Detailed calculation process
Apply the category cap and reconcile net cashback
The default uses $12,000 annual bonus-category spend, 4% category cashback, $18,000 other spend, 1.5% other-spend cashback, a $6,000 category cap, $95 annual fee, and 2% redemption loss.
General formula: C = min(S,K)X = max(S-K,0)B = C r_b/100O = (S_o+X)r_o/100G = B+OR = G(1-l/100)N = R-FE = N/(S+S_o)100 Only spending up to the cap earns the bonus rate. Category spending above the cap is added to other spending at the base rate before redemption loss and annual fee are applied.
What each symbol means
Worked substitution with the default inputs
The default produces $493 of net cashback and a 1.643% net effective reward rate.
Purpose-built visual
Cashback cap decomposition
The chart separates capped bonus rewards, excess-category base rewards, other base rewards, redemption loss, annual fee, and net cashback.
Worked situations
Practical examples
- The default uses $12,000 annual bonus-category spend, 4% category cashback, $18,000 other spend, 1.5% other-spend cashback, a $6,000 category cap, $95 annual fee, and 2% redemption loss.
- The default produces $493 of net cashback and a 1.643% net effective reward rate.
Better inputs
Useful tips
- Split spending by reward category and apply each rate only up to its eligible cap or quarterly limit.
- Subtract annual fees and excluded transactions before comparing net reward value across cards.
- Value points or statement credits at the actual redemption method you expect to use, not an advertised maximum.
Before relying on the result
Limitations and common mistakes
- Merchant coding, rotating enrollment, exclusions, category caps, statement-credit rules, refunds, annual fees, and expiration policies can change real cashback.
- The redemption loss is a single entered percentage.
- The effective rate is net of annual fee and can be negative.
Reference
Key terms
- Capped bonus spend
- Category spend that earns the bonus cashback rate.
- Excess category spend
- Category spend above the cap, modeled at the base rate.
- Net cashback
- Realized cashback after redemption loss minus annual fee.
Important note
Calculated from the entered values and stated financial terms. It is not a product quote, lending decision, tax filing, or investment recommendation.
Frequently asked questions
Why does excess category spend earn the base rate?
Once the cap is reached, the model moves excess category spend to the other-spend rate.
Can annual fee make net cashback negative?
Yes. The net value subtracts the annual fee after realized rewards.
Does this include rotating enrollment?
Only indirectly if you lower the category spend or rate to match what actually qualifies.
Why use total spend for the effective rate?
It shows the net reward return on all entered eligible card spending.