The best two- and three-card combinations
One card is simple. Two let each category go to the card that pays most on it. On an illustrative household's $2,205 a month, the best pair — American Express Blue Business Plus and Citi Custom Cash — earns $1,298 a year after fees, against $1,058 for the best single card, American Express Blue Business Plus. A third card adds another $82.
The short version
- Start with a card that pays well on everything, then add one for your biggest category.
- On this household's spending, Blue Business Plus and Custom Cash is the best pair.
- Add a third card only if it pays a bonus somewhere the first two don't — and more than its fee.
- Use your own spending in the next-card calculator.
The best pair, and what each card is for
- American Express Blue Business Plus — use it for Other, Dining, Gas, Online, Utilities, Phone, Flights, Hotels, Fun, Streaming, Drugstores and Rideshare
- Citi Custom Cash — use it for Groceries
The best pairs
| Cards | Fees a year | Earned a year | After fees |
|---|---|---|---|
| American Express Blue Business Plus and Citi Custom Cash | $0 | $1,298 | $1,298 |
| Chase Freedom Unlimited and Citi Custom Cash | $0 | $1,216 | $1,216 |
| American Express Blue Business Plus and American Express Gold Card | $325 | $1,466 | $1,141 |
| American Express Blue Business Plus and Chase Freedom Flex | $0 | $1,140 | $1,140 |
| American Express Blue Business Plus and Chase Freedom Unlimited | $0 | $1,140 | $1,140 |
The best three-card sets
- American Express Blue Business Plus — use it for Other, Gas, Online, Utilities, Phone, Flights, Hotels, Fun, Streaming and Rideshare
- Chase Freedom Flex — use it for Dining and Drugstores
- Citi Custom Cash — use it for Groceries
| Cards | Fees a year | Earned a year | After fees |
|---|---|---|---|
| American Express Blue Business Plus, Chase Freedom Flex and Citi Custom Cash | $0 | $1,380 | $1,380 |
| American Express Blue Business Plus, Chase Freedom Unlimited and Citi Custom Cash | $0 | $1,380 | $1,380 |
| American Express Blue Business Plus, Bilt Mastercard and Citi Custom Cash | $0 | $1,370 | $1,370 |
| American Express Blue Business Plus, Citi Custom Cash and U.S. Bank Cash+ Visa Signature | $0 | $1,352 | $1,352 |
| American Express Blue Business Plus, Citi Custom Cash and Wells Fargo Autograph | $0 | $1,347 | $1,347 |
Yearly figures are priced on an illustrative household spending $2,205 a month on a card — an assumption, not a statistic. The assumption, in full. Every combination of cards whose rates have been checked is tried, each card valued for what it adds over the others, caps honoured and rotating categories not credited. A card whose category you choose is given the one you spend most on. Credits, perks and sign-up bonuses are not priced.
Why the answer depends on you
A combination is only as good as the spending it was priced on. Somebody who spends more on travel than this household, or less on groceries, gets a different set — which is what the next-card calculator is for: enter your own spending and the cards you already hold, and it ranks what to add.
Related
Point values: published industry valuations, most recently read 2026-09. We track The Points Guy, Upgraded Points, NerdWallet, Frequent Miler and AwardWallet. Every figure on this page is recomputed from that data when the site is built, so it cannot quietly disagree with what Cardful tells you at a checkout.
It picks the card for each purchase.
Carrying two or three cards only pays if you use the right one each time. Cardful tells you which, at the checkout.