Quick Answer: Best 2% Flat-Rate Cashback Card
- Best overall (balance transfer + cashback combo): Citi Double Cash — 2% effective cashback (1% buy + 1% pay) and 0% intro APR for 18 months on balance transfers.
- Best for investors (cashback into brokerage): Fidelity Rewards Visa Signature — unlimited 2% cash back deposited directly to an eligible Fidelity account.
- Best for PayPal-heavy shoppers: PayPal Cashback Mastercard — 3% on purchases checked out through PayPal, 1.5% everywhere else.
If you have credit card debt to consolidate, Citi's 18-month 0% APR is the clear winner. If you're funneling cashback into investments, Fidelity. If you check out with PayPal regularly, PayPal Cashback's 3% on those purchases beats every other 2% card.
At-a-Glance Comparison
| Card | WG Rating | Best For | Cashback | Annual Fee | Intro APR Offer |
|---|---|---|---|---|---|
| Citi Double Cash (Editor's Pick) | 4.8/5 | Balance transfer + ongoing cashback | 2% (1% buy + 1% pay) | $0 | 0% for 18 mo on BT (3% intro BT fee within 4 mo) |
| Fidelity Rewards Visa Signature | 4.7/5 | Investing cashback into a brokerage | 2% (unlimited, must deposit to Fidelity) | $0 | None |
| PayPal Cashback Mastercard | 4.5/5 | PayPal-heavy spending | 3% PayPal checkouts; 1.5% elsewhere | $0 | None |
Citi Double Cash: Best Combined Earner + Balance Transfer
The Citi Double Cash earns 2% cash back on every purchase — 1% when you buy and another 1% when you pay it off. There are no caps or category restrictions. It also earns 5% total cash back on hotels, car rentals, and attractions booked through the Citi Travel portal.
The standout feature is the 0% intro APR for 18 months on balance transfers, with the balance transfer needing to be completed within the first four months of account opening. There's a 3% intro balance transfer fee (minimum $5) during that 4-month window; after, the fee rises to 5% of each transfer (minimum $5). After the intro period, the APR is 17.49% to 27.49% (variable). There's no intro APR for purchases.
Best for: Cardholders carrying balances who want to consolidate to 0% APR AND earn flat-rate cashback on new spending afterward.
Pros: 18-month 0% APR on balance transfers (among the longest in the market). Effective 2% on every purchase (no caps). $0 annual fee. Citi Travel portal bonus to 5%.
Watch-outs: The split-payment structure means you only get the second 1% when you actually pay. New cardholders shouldn't expect a 0% intro APR on purchases — only balance transfers qualify. Balance transfer fee is 3% if completed within the first 4 months, then 5% after.
Fidelity Rewards Visa Signature: Best for Investors
The Fidelity Rewards Visa Signature earns unlimited 2% cash back on every purchase, with no caps or category restrictions. The catch is that you only get the full 2% when you redeem rewards by depositing them into an eligible Fidelity account. Other redemption options (travel, statement credits, gift cards) typically work out to less than 2%.
Eligible accounts include most non-retirement Fidelity registrations, Traditional IRA, Roth IRA, Rollover IRA, SEP IRA, Fidelity Charitable Giving Account, Fidelity HSA, and Fidelity-managed 529 College Savings Plans. The card has no annual fee, no foreign transaction fee, and no rewards expiration. There's also a Global Entry or TSA PreCheck benefit issued as up to $100 in Reward Points when you use the card to pay the application fee.
Best for: Fidelity customers who want to automatically convert daily spending into investments — effectively a 2% match on your spending into a Roth IRA, taxable brokerage, or HSA.
Pros: 2% unlimited cashback with no categories. No annual fee. No foreign transaction fee. Direct deposit into investment accounts. Global Entry / TSA PreCheck credit.
Watch-outs: Requires a Fidelity account to maximize the 2% rate — if you redeem to other accounts or formats, the effective rate drops. No balance transfer 0% offer. No introductory APR on purchases.
Pair with a high-yield account
PayPal Cashback Mastercard: Best for PayPal Power Users
The PayPal Cashback Mastercard pays unlimited 3% cash back on online purchases made through PayPal and unlimited 1.5% cash back on all other purchases everywhere Mastercard is accepted. There are no rotating categories, no annual fee, and no caps.
Cash back is earned daily on completed purchases posted to your account, and you can redeem at any time to your PayPal balance with no minimum redemption amount. The card includes Mastercard benefits like ID Theft Protection and chip technology.
The math is straightforward: if you check out with PayPal regularly (eBay, many smaller merchants, gig platforms that pay out via PayPal, plus PayPal-as-checkout at major retailers), the 3% on those purchases easily beats any flat-2% card. If your PayPal share of spending is below ~33%, you're likely better off with a true 2% card on everything.
Best for: Cardholders whose PayPal checkout volume is meaningful (eBay sellers/buyers, freelancers, marketplace shoppers).
Pros: 3% on PayPal checkouts is among the highest flat rates available on a no-fee card. Daily reward posting. Instant redemption to PayPal balance with no minimum. $0 annual fee.
Watch-outs: Only 1.5% on non-PayPal spending — that's worse than every true 2% card. Cashback only redeemable to PayPal balance. No 0% intro APR on purchases or transfers.
The Math on Three Spending Profiles
| Profile | Citi Double Cash | Fidelity Rewards | PayPal Cashback Mastercard |
|---|---|---|---|
| $2,000/mo all non-PayPal spend | $480/year | $480/year (to Fidelity) | $360/year (1.5% only) |
| $2,000/mo with 33% via PayPal | $480/year | $480/year | $402/year ($240 PayPal + $162 elsewhere) |
| $2,000/mo with 60% via PayPal | $480/year | $480/year | $576/year ($432 PayPal + $144 elsewhere) |
| $8,000 balance to transfer | ~$240 BT fee, then save $1,200+ at 0% APR for 18 mo | No BT offer | No BT offer |
PayPal Cashback only beats the 2% cards once your PayPal share crosses ~33% of spending. Citi's standalone value lies in the balance transfer offer, which can save thousands if you're carrying high-APR debt.
Methodology
We weighted each card on five factors:
- Effective cashback rate on realistic spend profile (35%) — how much do you actually earn after accounting for redemption restrictions and category caps?
- Intro offers (balance transfer or purchase APR) (25%) — how much value is locked in the first year?
- Redemption flexibility (15%) — how easy and valuable are the redemption options?
- Annual fee and ongoing cost (15%) — including foreign transaction fees and other recurring costs.
- Cardholder-friendly features (10%) — travel credits, purchase protection, no-expiration rewards.
All cashback rates, intro offer terms, and fee information are verified against each issuer's published terms as of May 30, 2026. Rates and offers are subject to change — confirm current terms on the issuer's site before applying.
Which Should You Pick?
- If you're carrying credit card debt at 20%+ APR → Citi Double Cash for the 18-month 0% balance transfer offer.
- If you're a Fidelity investor who'd otherwise spend the cashback → Fidelity Rewards — auto-deposit into a Roth IRA, HSA, or brokerage.
- If more than 33% of your spending goes through PayPal → PayPal Cashback Mastercard.
- If you want one card for simple flat-rate earning with no portal restrictions → Citi Double Cash wins on flexibility.
- If you're traveling internationally → Fidelity Rewards has no foreign transaction fee; Citi Double Cash does.
What to Do Next
- If you're paying off debt, model your payoff path with our Debt Payoff Calculator.
- Optimize your cashback stack across cards with our Cashback Optimizer.
- Browse the full Credit Cards hub for category-specific rewards if a flat 2% isn't your best fit.
FAQ
Is Citi Double Cash really 2% cash back?
Yes — 1% when you buy and 1% when you pay. If you carry a balance and never fully pay it off, you only earn the first 1%. For users who pay statements in full, the effective rate is the full 2%.
Does the Fidelity Rewards card require a Fidelity account?
To get the full 2% rate, yes. You can redeem to other formats (travel, statement credits, gift cards), but the effective rate drops below 2%. Opening a Fidelity brokerage or Roth IRA is free and takes about 10 minutes.
When does PayPal Cashback Mastercard beat Citi Double Cash?
Once roughly 33% or more of your spending runs through PayPal checkout. Below that, the 1.5% non-PayPal rate drags down PayPal Cashback's effective total below Citi's flat 2%.
Is the Citi Double Cash 0% balance transfer worth it?
If you have $5,000+ in credit card debt at 20%+ APR, almost always yes. The 3% balance transfer fee (within first 4 months) is small compared to the interest you'd save over 18 months at 0%. After the intro period, the APR rises to 17.49%–27.49% variable.
Can I have all three cards?
Technically yes — they're from three different issuers (Citi, Elan Financial for Fidelity, Synchrony for PayPal Cashback), so the inquiries and accounts don't compete. Stacking them lets you use Citi for general spend, PayPal Cashback for PayPal checkouts, and Fidelity for international travel (no FX fee).
Updated May 30, 2026 | Verified by the WalletGrower Editorial Team
Disclosure: WalletGrower may earn a commission when you apply for products through our links. Our recommendations are based on independent research and the verified terms of each card. Card terms, intro offers, and APR ranges can change between cycles — confirm current offers on the issuer's site before applying.
We update rates, bonuses, fees, and product details regularly against each provider. Rates shown are subject to change; verify current offers before applying.