---
title: "2026's Best Credit Cards for Online Shopping"
description: "You're throwing away cash every time you shop online. Compare 2026's top credit cards and earn up to 5% back on Amazon, Target, and more."
author: "Troy Johnston"
published: "2026-02-24"
category: "Credit Cards"
canonical: "https://www.stackeasy.ai/blog/best-credit-card-for-online-shopping"
source: "StackEasy.ai"
---

# 2026's Best Credit Cards for Online Shopping

**Advertiser Disclosure:** Some products featured on this page are from partners who compensate us. This may influence which products we cover and where they appear, but it does not affect our editorial opinions or ratings. [Learn more](https://www.stackeasy.ai/advertiser-disclosure)

[Blog](/blog)|Card Reviews

# Best Credit Card for Online Shopping in 2026

Last updated July 2026

TJ

Troy Johnston

Founder, StackEasy.ai · 18 min read

In This Article

-   [Start With Your Online Spending Split](#online-spend-split)
-   [The Stack Most People Miss: Rate, Portal, and Card-Linked Offer](#stack-most-people-miss)
-   [The Amazon Question: Prime Visa Break-Even Math](#amazon-prime-visa-math)
-   [PayPal Checkout, the Blue Cash Everyday Sleeper, and Your 2% Floor](#paypal-bce-and-the-2-percent-floor)
-   [Purchase Protection, Virtual Cards, and Fraud Liability](#online-buying-protections)

Quick Answer

There is no single best card for online shopping. Match the card to where you check out. The Prime Visa earns 5% on Amazon if you have a Prime membership. The PayPal Cashback Mastercard earns 3% anywhere you pay through PayPal. The Blue Cash Everyday earns 3% on U.S. online retail up to $6,000 a year. Route everything else to a 2% flat card like the Citi Double Cash.

**The best credit card for online shopping is the one that matches where your carts actually live: Amazon, PayPal checkout, or spread across many stores.** Online is not one spending category. It is three lanes with three different winners, and the wrong routing quietly costs a $500-a-month online shopper up to $240 a year.

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Note

-   Match the card to the checkout: Prime Visa pays 5% on Amazon, PayPal Cashback pays 3% at PayPal checkout, and Blue Cash Everyday pays 3% on U.S. online retail up to $6,000 a year.
-   Without a Prime membership, you need about $232 a month in Amazon spending before the Prime Visa's 5% covers the $139 annual membership cost.
-   Stacking a shopping portal and a card-linked offer underneath your card's own rate can add $100 or more a year on just $3,000 of online spending, but not at Amazon, which does not support portal cash back.
-   A 2% flat card like the Citi Double Cash is your floor. Any online purchase earning 1% is money left on the table.

### Online Shopping Credit Card Comparison

Card

Online Earning Rate

Annual Fee

Stacks With a Portal?

Best For

Prime Visa

5% Amazon and Whole Foods

$0 (requires Prime, $139/yr)

No, Amazon blocks portal tracking

Amazon-heavy carts

PayPal Cashback Mastercard

3% at PayPal checkout, 1.5% everywhere else

$0

Inconsistent, PayPal checkout often blocks portal tracking

PayPal-first shoppers

Blue Cash Everyday

3% U.S. online retail, up to $6,000/yr then 1%

$0

Yes, at most participating retailers

Spread-out online retail

Citi Double Cash

2% on everything (1% buy, 1% pay)

$0

Yes, at any store running a portal deal

The everywhere-else floor

Discover it Cash Back

5% rotating categories, up to $1,500/qtr after activation

$0

Only inside the capped 5% quarter

Bonus quarters, first-year match

Here is the insight most online-shopping guides skip entirely: your card's own rate is not the only rebate sitting on a given purchase. A shopping portal and a card-linked offer can stack underneath it, on the same purchase, in the same second, paid by two parties who are not your card issuer. Most people never claim that second layer. On $3,000 a year of online spending, a 3% card alone earns $90. The same card, same purchases, with a shopping portal added on top, earns $210, a $120 difference for a five-second habit.

Here is the second number that frames every pick on this page: on $6,000 a year of online spending, a 1% card returns $60 and a 5% card returns $300, a gap of $240 a year for the same purchases. Every rate in this article was verified against issuer terms in July 2026.

Compare every card and track your 5% deadlines in one place. [Start Free →](https://app.stackeasy.ai/user/auth/signup?utm_source=blog&utm_medium=content&utm_campaign=best-credit-card-for-online-shopping&utm_content=top-cta)

I manage 28 cards, and online checkout is where I see the most money quietly left behind. Not because people own the wrong cards. Because the right card sits in the drawer while a 1% card does the work. This guide fixes the routing: which card for Amazon, which for PayPal, which for everything else, with the arithmetic behind each call.

## Start With Your Online Spending Split

Most people shop for "an online shopping card" like it is one decision. That is the wrong frame. Online spending splits into three lanes: Amazon, merchants where you pay through PayPal, and everything else. Each lane has a different winning card, and no single card wins all three.

So before you compare cards, look at your own data. Where did your last ten online orders actually happen? Pull three months of statements and total three buckets: Amazon, PayPal checkouts, and the rest. That split, not any review site's ranking, decides your best card. A $400-a-month Amazon household and a $400-a-month "twelve different stores" household need different plastic.

Two or three cards working their own lanes beat one card working all of them. That is the core idea behind [credit stacking](/blog/credit-stacking-101), applied to a single spending category. This guide goes deep on the online lanes. For dining, gas, groceries, and the rest of your budget, our [best card for each spending category](/blog/best-credit-card-by-category-2026) guide covers the full map.

## The Stack Most People Miss: Rate, Portal, and Card-Linked Offer

Ignore specific cards for a second and look at the mechanism. A card's bonus rate is one rebate, paid by your issuer out of the interchange fee it collects from the merchant. A shopping portal like Rakuten is a second, entirely separate rebate, paid out of the portal's own affiliate commission from that same merchant. A card-linked offer, the kind you activate inside your issuer's app, is a third rebate, funded by the merchant's own advertising budget and delivered through your card network's offer platform, think Amex Offers, Chase Offers, BofA Offers, and similar Cardlytics-powered programs. Three different payers, one purchase. Nothing about earning one blocks you from earning the other two.

Run the numbers on a real lane. The Blue Cash Everyday earns 3% on U.S. online retail purchases, up to $6,000 a year. On $3,000 a year spread across online retailers that also run a portal deal, the card alone earns $90. Open the portal link first, then check out normally, paying the merchant directly with the same card, and a portal running its own rate on that same $3,000 (portal rates vary by store and by day, so treat this as illustrative, not a fixed number) adds a second, independent payout on top. At an average portal rate in the 4% range, that is another $120, for $210 total, more than double what the card earned by itself, on purchases you were already making. One lane does not belong in this math: if you pay through PayPal checkout instead of paying the merchant with your card directly, the portal step above frequently fails. PayPal's own checkout redirects through PayPal's domain, and that hop is a well-known cause of dropped affiliate-tracking cookies, the same failure that blocks portals on Amazon. The PayPal Cashback Mastercard still earns its 3% at PayPal checkout regardless, but treat any portal payout on top of a PayPal-checkout purchase as a bonus if it lands, not something to plan around. Check the portal's own activity log for a tracked click before you count that second layer.

Same $3,000 in online retail spending, three ways The Blue Cash Everyday alone earns $90 on $3,000 of U.S. online retail spending at its 3% rate. The same spending, checked out directly with the card and routed through a shopping portal on top, earns an illustrative $210, adding $120 for the same purchases. A 5% rotating-category card with an online-shopping-adjacent quarter, once its $1,500-per-quarter cap is spent, blends down to the same $90 as the card alone, shown as a dashed reference line. Same $3,000, Three Ways to Earn On It Blue Cash Everyday, 3% U.S. online retail up to $6,000/yr; portal rate illustrative Rotating 5% card, past its cap: still $90 $90 Card alone $210 Card + shopping portal Same merchant, same card, same $3,000 of purchases

The card by itself earns $90. Add a portal on top of the same purchases and the total roughly doubles. The dashed line shows why a 5% rotating card is not automatically the better move: once you spend past its quarterly cap, the blended rate quietly falls back to the same $90 a boring 3% card pays with zero activation.

Here is the catch that makes "online shopping" a slippery category to plan around: not every lane is stackable, and the biggest one usually is not. Amazon is the highest-paying single lane on this page, 5% with the Prime Visa, but Amazon does not run a public shopping portal and mainstream portals like Rakuten and TopCashback do not pay out on Amazon.com purchases at all; Amazon blocks the affiliate tracking a portal depends on. So the lane with the best headline rate is also the one lane where the second and third layers of the stack simply do not exist. Stacking lives most reliably in the general online retail lane, where you pay the merchant with your card directly and a portal and a card-linked offer can usually sit underneath your card's rate. PayPal checkout is the exception worth flagging: because payment routes through PayPal's own domain, portals frequently lose the tracking click before the sale registers, so confirm a payout actually shows up before you count on it.

The rotating-category cards add a trap worth naming, and it is the reason for the dashed line in the chart above. When Discover it Cash Back or the Chase Freedom Flex puts an online-shopping-adjacent category into their 5% quarterly rotation, as both issuers have done in past quarters, that 5% rate stops at $1,500 in combined purchases for the quarter, then drops to 1% for the rest of it. Spend $3,000 in that category over the quarter and the blended math is $1,500 at 5% ($75) plus $1,500 at 1% ($15), for $90 total, an effective rate of exactly 3%. That is the identical $90 a no-annual-fee, no-activation Blue Cash Everyday pays automatically on the same $3,000 inside its own 3% U.S. online retail category. The rotating card only beats the boring card if you keep spending under the quarterly cap, or add a second lane once you cross it.

PRO TIP

Before a big non-Amazon purchase, do it in this order: open the portal's link to the retailer first (a direct visit or a bookmark can break the tracking cookie), check your issuer's app for a card-linked offer at that merchant and activate it, then shop and pay with the card that wins that category. All three rebates apply to the same transaction, with one exception: if that card is the PayPal Cashback Mastercard and you check out through PayPal, confirm the portal actually shows a tracked click, since paying through PayPal is a common way that tracking cookie breaks. Skipping the portal step is the single most common way people leave money on this table.

This is also the layer most card-tracking tools miss. They tell you which card earns the highest category rate at a given store. Almost none of them tell you whether a portal or a card-linked offer is sitting unclaimed on top of that rate. That gap is exactly what StackEasy is built to close: surface the highest-earning card for the site you are on, and flag when a stack you have not claimed yet is available at checkout.

None of this changes the honest baseline. A flat 2% card is still the right call the moment portals and offers are not part of your routine: if you will not open a portal tab before checkout, or if your online spending is concentrated at Amazon, the extra layers in this section are not available to you anyway, and the simplest card in your wallet already wins.

## The Amazon Question: Prime Visa Break-Even Math

If Amazon dominates your online spending, the Prime Visa is the card to beat. It pays 5% back on Amazon and Whole Foods purchases with an eligible Prime membership, plus 2% at gas stations, restaurants, and on local transit. The card itself has no annual fee, but it requires Prime, which sells separately at $139 a year.

That membership requirement is where the math matters, so run it honestly. If you already pay for Prime anyway, the decision is easy: the card costs you nothing and pays 5% from the first dollar. If you would be buying Prime just to get the card, you need $139 divided by 5%, which is $2,780 a year, about $232 a month at Amazon, before rewards cover the membership.

And measure the upgrade against the card already in your wallet, not against zero. If a 2% flat card handles your Amazon orders today, the Prime Visa's real gain is 3 percentage points. At that delta, covering $139 takes $4,633 a year, about $386 a month, before buying Prime for the card alone beats standing pat.

Below those lines, there is a quieter play: the Blue Cash Everyday earns 3% on Amazon inside its U.S. online retail category, no membership required. For a $150-a-month Amazon shopper without Prime, 3% free beats 5% with a $139 toll every time.

## PayPal Checkout, the Blue Cash Everyday Sleeper, and Your 2% Floor

The second lane is PayPal. The PayPal Cashback Mastercard pays 3% on anything you buy through PayPal checkout and 1.5% everywhere else. Since the PayPal button shows up across a huge share of online stores, one card turns thousands of merchants into a 3% category. One caution: it charges a 3% foreign transaction fee, so keep it off overseas merchants.

The sleeper of this whole article is the Blue Cash Everyday's U.S. online retail category: 3% back on up to $6,000 a year, then 1%, on a $0-annual-fee card. Almost nobody explains what qualifies, so here is the fine print, verified against Amex's terms in July 2026. Purchases count when made online from a U.S. retail merchant that sells physical goods directly to consumers. Buy online, pick up in store qualifies when the merchant processes it as an online order. Phone orders, mail orders, and purchases run through a third-party buy now, pay later plan do not qualify. Online groceries route to the card's separate U.S. supermarket category, which also pays 3%.

Now the honest cap math. Maxing the $6,000 category at 3% earns $180 a year. A 2% flat card on the same spending earns $120, so the online retail category is worth $60 a year by itself. That alone does not justify a new application. The card earns its slot when you also use its 3% U.S. supermarket and 3% U.S. gas categories, each with their own $6,000 annual cap.

Everything that falls outside your bonus lanes needs a floor, and the floor is 2% flat: the Citi Double Cash (1% when you buy, 1% when you pay) or the Wells Fargo Active Cash. Rotating-category cards layer on top. The Discover it Cash Back pays 5% on quarterly categories, up to $1,500 per quarter after activation, and Amazon or online retail shows up in some quarters. Add its unlimited first-year Cashback Match and it is a strong bonus layer, just not a base you plan around. Our [best cash back credit cards](/blog/best-cash-back-credit-cards) guide ranks the full field.

One card is missing from this list on purpose. For years, the Citi Custom Cash was my answer for a single dominant online category, with 5% on your top eligible spending category each billing cycle. That card closed to new applications on May 28, 2026. Existing cardholders keep earning, but I no longer recommend planning around it. The closest live substitutes are the Blue Cash Everyday for online retail and the U.S. Bank Cash+, which pays 5% on two categories you choose, on up to $2,000 in combined purchases per quarter.

PRO TIP

Owning these cards is half the job. The other half is pulling the right one out at checkout. Before any cart over $100, take five seconds to confirm which of your cards wins at that specific merchant. On $6,000 a year of online spending, that habit is worth up to $240, more than any single card on this page.

Know Your Best Card Before You Pay

The free StackEasy Chrome extension shows your highest-earning card for every site you shop, plus a cheat sheet for your whole wallet. Set it up once, never leave rewards behind again.

[Add StackEasy to Chrome (Free)](https://www.stackeasy.ai/extension/?utm_source=blog&utm_medium=cta&utm_campaign=extension-distribution&utm_content=best-credit-card-for-online-shopping)

To make the lanes concrete, price a $500-a-month online shopper against each setup. All of it on a 2% flat card earns $120 a year. Routed through the Blue Cash Everyday's online retail category at 3%, it earns $180. Through PayPal checkout on the PayPal Cashback Mastercard, also $180. An Amazon-heavy $500 on the Prime Visa earns $300, or a net $161 in year one if you are buying the $139 Prime membership just for the card. The spread between the worst and best routing is real money for zero extra effort.

### Related Guides

-   [best card for each spending category](/blog/best-credit-card-by-category-2026)
-   [best cash back credit cards](/blog/best-cash-back-credit-cards)
-   [credit stacking 101](/blog/credit-stacking-101)

### Sources & Further Reading

-   [Chase](https://www.chase.com/personal/credit-cards), official Prime Visa and Chase credit card terms, rewards rates, and current offers
-   [American Express](https://www.americanexpress.com/us/credit-cards/card/blue-cash-everyday/), official Blue Cash Everyday terms, including the U.S. online retail category definition and caps
-   [PayPal](https://www.paypal.com), official PayPal Cashback Mastercard earning rates and fees
-   [Consumer Financial Protection Bureau](https://www.consumerfinance.gov/consumer-tools/credit-cards/), federal consumer guidance on credit card fees, billing, fraud liability, and cardholder rights

## Purchase Protection, Virtual Cards, and Fraud Liability

Rewards decide which credit card you use online. Liability rules decide why you use a credit card at all. Federal law caps your responsibility for unauthorized credit card charges at $50, and major issuers advertise $0 fraud liability on top of that. Debit cards play by harsher rules: report within two business days and you risk $50, wait longer and the cap jumps to $500, and the money leaves your actual checking account while the bank investigates. Never shop online with a debit card.

Purchase protection and extended warranty coverage are the other reason online buyers reach for credit over debit. Many cards refund or repair items that arrive damaged or get stolen shortly after purchase, and some add a year to the manufacturer's warranty. But issuers have trimmed these benefits repeatedly over the past few years, and windows and dollar caps differ card by card. Before you count on coverage for a big purchase, open your card's current benefits guide and read the actual terms. Do not rely on a blog post, including this one, for a claim you might file next year.

Virtual card numbers are the most underused online safety tool. A virtual number is a merchant-specific stand-in for your real card number, so a breach at one store never exposes the card itself. Capital One generates them through its Eno browser extension, and you lock or delete each number independently. Several issuers have retired or reshuffled their virtual card programs in recent years, so check your own issuer's app before assuming your card offers one.

Put together, the safety case and the rewards case point the same direction. Route every online purchase through the credit card that wins that lane, pay the statement in full, and let the issuer carry the fraud risk. Your checking account should never touch an online checkout page.

Written by Troy Johnston

Credit stacking gave Troy an edge, but managing it was chaos. With 28 cards and no real system beyond spreadsheets, small mistakes became expensive. StackEasy didn't exist, so he built it. Now thousands use it to keep leverage organized and working in their favor.

[Connect on LinkedIn](https://www.linkedin.com/in/troyjohnston) · [stackeasy.ai](https://www.stackeasy.ai)

## Keep Reading

[Credit Cards

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Read more](/blog/best-credit-card-for-gas)[Credit Cards

### Best Student Credit Cards in 2026: The 6 That Still Exist

Read more](/blog/best-student-credit-cards)

## Frequently Asked Questions

### What is the best credit card for online shopping in 2026?

It depends on where you check out, so split it into lanes. The Prime Visa earns 5% on Amazon with a Prime membership. The PayPal Cashback Mastercard earns 3% on anything paid through PayPal checkout. The Blue Cash Everyday earns 3% on U.S. online retail up to $6,000 a year. Route everything outside those lanes to a 2% flat card like the Citi Double Cash.

### Is the Prime Visa worth it without a Prime membership?

Only at higher spending levels. The card has no annual fee but requires Prime, which costs $139 a year. At 5% back, you need about $2,780 a year in Amazon spending, roughly $232 a month, before rewards cover the membership. Below that line, the Blue Cash Everyday earns 3% on Amazon inside its U.S. online retail category with no membership required.

### What counts as U.S. online retail on the Blue Cash Everyday?

Amex counts online purchases from U.S. retail merchants that sell physical goods directly to consumers, up to $6,000 a year at 3%, then 1%. Buy online, pick up in store qualifies when the merchant processes it as an online order. Phone orders, mail orders, and third-party buy now, pay later purchases do not qualify. Online groceries fall under the card's separate 3% U.S. supermarket category instead.

### What happened to the Citi Custom Cash card?

The Citi Custom Cash closed to new applications on May 28, 2026. Existing cardholders keep the card and its 5% on a top eligible spending category each billing cycle. If you were counting on it for online spending, the closest live substitutes are the Blue Cash Everyday for U.S. online retail and the U.S. Bank Cash+, which pays 5% on two categories you choose, on up to $2,000 in combined purchases per quarter.

### Is a credit card safer than a debit card for online shopping?

Yes. Federal law caps your liability for unauthorized credit card charges at $50, and most major issuers reduce that to $0. Debit card rules are harsher: report fraud after two business days and your liability rises to as much as $500. Debit fraud also drains real money from your checking account while the bank investigates, while credit card fraud only disputes a bill you have not paid yet.

### Do credit cards still offer virtual card numbers?

Some do. Capital One generates merchant-specific virtual numbers through its Eno browser extension, and you lock or delete each one independently. Several other issuers have retired or changed their virtual card programs in recent years, so check your issuer's app or site before assuming your card includes one. A virtual number keeps your real card number out of merchant databases if a store gets breached.

### Can I combine a credit card's rewards with a shopping portal like Rakuten?

Yes. Your card's cash back rate and a shopping portal's cash back are two separate rebates paid by two different parties, your card issuer and the portal's affiliate commission, so one does not cancel out the other. Open the portal's link to the retailer first, then check out normally and pay with your card; both rewards apply to that same purchase. A card-linked offer you activate in your issuer's app can add a third, independent layer, funded by the merchant, on top. Two exceptions to watch: Amazon does not run a public shopping portal, and mainstream portals do not pay cash back on Amazon.com purchases; and if you pay through PayPal checkout instead of paying the merchant directly with your card, the portal's tracking cookie frequently breaks before the sale registers, so confirm it tracked before counting on that payout.

### Why doesn't Rakuten or a shopping portal work on Amazon?

Amazon blocks the affiliate tracking that shopping portals rely on, so portals like Rakuten and TopCashback do not offer cash back on Amazon.com purchases. That makes the Prime Visa's 5% Amazon rate a single-layer reward with no portal or card-linked offer underneath it. General online retailers paid directly with your card are the more reliable exception, where a portal and a targeted merchant offer can often stack on top of your card's own rate. PayPal checkout sits in between: it is not blocked like Amazon, but routing payment through PayPal's own domain is a well-known cause of the same tracking failure, so confirm the portal registered before counting on that payout.

⭐ StackEasy Bottom Line

StackEasy recommends a two-card online setup: the Prime Visa at 5% if you hold Prime and spend more than $232 a month on Amazon, plus a 2% flat card like the Citi Double Cash as the floor for every other online purchase. If your online spending spreads across many stores, add the Blue Cash Everyday and its 3% on U.S. online retail up to $6,000 a year. Outside of Amazon, and especially when you check out with the card directly instead of through PayPal, stack a shopping portal and a card-linked offer underneath whichever card wins. StackEasy tracks which card wins at each checkout and flags when a portal or offer is sitting unclaimed on top of it, so none of it slips.

## Ready to Take Control of Your Credit?

StackEasy tracks all your cards, monitors utilization, and tells you exactly when to apply next.

[Start Free →](https://app.stackeasy.ai/user/auth/signup?utm_source=blog&utm_medium=content&utm_campaign=best-credit-card-for-online-shopping&utm_content=bottom-cta)

Free to use. No credit card required.

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## Frequently Asked Questions

**Q: What is the best credit card for online shopping in 2026?**
A: It depends on where you check out, so split it into lanes. The Prime Visa earns 5% on Amazon with a Prime membership. The PayPal Cashback Mastercard earns 3% on anything paid through PayPal checkout. The Blue Cash Everyday earns 3% on U.S. online retail up to $6,000 a year. Route everything outside those lanes to a 2% flat card like the Citi Double Cash.

**Q: Is the Prime Visa worth it without a Prime membership?**
A: Only at higher spending levels. The card has no annual fee but requires Prime, which costs $139 a year. At 5% back, you need about $2,780 a year in Amazon spending, roughly $232 a month, before rewards cover the membership. Below that line, the Blue Cash Everyday earns 3% on Amazon inside its U.S. online retail category with no membership required.

**Q: What counts as U.S. online retail on the Blue Cash Everyday?**
A: Amex counts online purchases from U.S. retail merchants that sell physical goods directly to consumers, up to $6,000 a year at 3%, then 1%. Buy online, pick up in store qualifies when the merchant processes it as an online order. Phone orders, mail orders, and third-party buy now, pay later purchases do not qualify. Online groceries fall under the card's separate 3% U.S. supermarket category instead.

**Q: What happened to the Citi Custom Cash card?**
A: The Citi Custom Cash closed to new applications on May 28, 2026. Existing cardholders keep the card and its 5% on a top eligible spending category each billing cycle. If you were counting on it for online spending, the closest live substitutes are the Blue Cash Everyday for U.S. online retail and the U.S. Bank Cash+, which pays 5% on two categories you choose, on up to $2,000 in combined purchases per quarter.

**Q: Is a credit card safer than a debit card for online shopping?**
A: Yes. Federal law caps your liability for unauthorized credit card charges at $50, and most major issuers reduce that to $0. Debit card rules are harsher: report fraud after two business days and your liability rises to as much as $500. Debit fraud also drains real money from your checking account while the bank investigates, while credit card fraud only disputes a bill you have not paid yet.

**Q: Do credit cards still offer virtual card numbers?**
A: Some do. Capital One generates merchant-specific virtual numbers through its Eno browser extension, and you lock or delete each one independently. Several other issuers have retired or changed their virtual card programs in recent years, so check your issuer's app or site before assuming your card includes one. A virtual number keeps your real card number out of merchant databases if a store gets breached.

**Q: Can I combine a credit card's rewards with a shopping portal like Rakuten?**
A: Yes. Your card's cash back rate and a shopping portal's cash back are two separate rebates paid by two different parties, your card issuer and the portal's affiliate commission, so one does not cancel out the other. Open the portal's link to the retailer first, then check out normally and pay with your card; both rewards apply to that same purchase. A card-linked offer you activate in your issuer's app can add a third, independent layer, funded by the merchant, on top. Two exceptions to watch: Amazon does not run a public shopping portal, and mainstream portals do not pay cash back on Amazon.com purchases; and if you pay through PayPal checkout instead of paying the merchant directly with your card, the portal's tracking cookie frequently breaks before the sale registers, so confirm it tracked before counting on that payout.

**Q: Why doesn't Rakuten or a shopping portal work on Amazon?**
A: Amazon blocks the affiliate tracking that shopping portals rely on, so portals like Rakuten and TopCashback do not offer cash back on Amazon.com purchases. That makes the Prime Visa's 5% Amazon rate a single-layer reward with no portal or card-linked offer underneath it. General online retailers paid directly with your card are the more reliable exception, where a portal and a targeted merchant offer can often stack on top of your card's own rate. PayPal checkout sits in between: it is not blocked like Amazon, but routing payment through PayPal's own domain is a well-known cause of the same tracking failure, so confirm the portal registered before counting on that payout.

**Q: Ready to Take Control of Your Credit?**
A: StackEasy tracks all your cards, monitors utilization, and tells you exactly when to apply next.

---

## About StackEasy

StackEasy helps Americans build financial leverage through credit stacking strategies. Track utilization, APR deadlines, and rewards across your entire card portfolio. Free credit card tracker at [stackeasy.ai](https://www.stackeasy.ai/start).

*Published by Troy Johnston on StackEasy.ai. For the latest version of this article, visit [2026's Best Credit Cards for Online Shopping](https://www.stackeasy.ai/blog/best-credit-card-for-online-shopping).*