Amex Blue Business Cash

Who this card is for

The Amex Blue Business Cash is the “don’t make me think” business card. You earn 2% on everything you buy, up to $50,000/year, with no annual fee. No rotating categories, no bonus activation, no figuring out which card to use at which store. Put your business spending on it and collect cash back.

This works best for businesses with diverse spending that does not concentrate in a single category. If your monthly expenses are a mix of supplies, software subscriptions, client meals, marketing tools, and random operational costs, the flat 2% earns more than a category-specific card where most of your spending only gets 1%.

The rewards math

2% cash back on $50,000/year = $1,000 in annual cash back at $0 annual fee. That is the ceiling for this card.

Here is how it compares to the Chase Ink Business Cash for different spending patterns:

Annual spending	Amex Blue Business Cash (2% flat)	Chase Ink Cash (5%/2%/1% categories)
$5,000 office supplies + $5,000 internet	$200	$500
$10,000 mixed (no bonus categories)	$200	$100
$25,000 diverse spending	$500	$250-$500 (depends on category mix)
$50,000 diverse spending	$1,000	$500-$1,000 (depends on category mix)

The pattern is clear: if your spending falls neatly into Chase’s 5% categories (office supplies, internet, cable, phone), Chase Ink Cash wins. If your spending is spread across categories with no dominant bucket, the flat 2% earns more because you are not getting 1% on the “everything else” that makes up most of your spending.

The $50K cap

The 2% rate applies to the first $50,000 in eligible purchases per calendar year. After that, you earn 1%. For a business putting $4,000/month on the card, you will not hit the cap. At $5,000/month you hit it in October. At $6,000/month you hit it in August and earn 1% for the rest of the year.

If your business routinely spends over $50,000/year on a card, you have two options: pair this card with a second card for spending above the cap, or look at an uncapped option like the Capital One Spark Cash Plus (2% unlimited, but $150 annual fee).

For most small businesses spending $2,000-$4,000/month, the cap is irrelevant.

0% intro APR

The card offers 0% introductory APR on purchases for 12 months from account opening. After that, the variable APR ranges from 16.74% to 26.74% based on your creditworthiness (tied to Prime Rate + 9.99% to 19.99%).

This matters for businesses that need to finance a large purchase (new equipment, inventory build, office setup) and pay it off over 12 months interest-free. On a $10,000 purchase, 12 months of 0% interest saves you roughly $1,800-$2,700 compared to carrying the balance at the standard APR. That dwarfs the $200 in cash back you would earn on the purchase.

Do not carry a balance past the intro period. The penalty APR (Prime + 25.99%, capped at 29.99%) kicks in for late payments and is not forgiving.

Benefits worth knowing about

Expanded Buying Power: Amex lets you spend beyond your stated credit limit on a case-by-case basis, based on your payment history and credit profile. This is not a guaranteed credit line increase. It is Amex’s way of approving charges above your limit when your account is in good standing. Useful for unexpected large expenses.

Purchase protection: Covers eligible purchases against theft and accidental damage for 90 days from purchase date. Up to $1,000 per claim, $50,000 per account per year.

Extended warranty: Adds up to 1 year to manufacturer warranties of 5 years or less. Up to $10,000 per item, $50,000 per account.

Car rental insurance: Secondary collision damage coverage when you decline the rental company’s CDW and charge the rental to your card. Covers rentals up to 30 days.

Employee cards: Free additional cards for employees. All spending counts toward your 2% cash back. You earn a $50 statement credit if you add employee cards at application and they spend $1,000 in the first 12 months.

Amex Offers: Targeted discounts and statement credits from specific merchants. These rotate and vary by account, but they can add meaningful savings. Check your Amex Offers tab regularly.

Amex acceptance

The old knock on Amex was that merchants did not accept it. That has changed significantly. Amex claims 99% acceptance among U.S. merchants that take credit cards, driven largely by the OptBlue program that brought small business acceptance fees closer to Visa/Mastercard levels. In practice, you will occasionally run into a small merchant (especially cash-only businesses or very small operations) that does not take Amex, but it is rare enough that it should not be your primary concern.

The bigger issue for businesses that accept cards: Amex interchange fees are still higher than Visa/Mastercard for merchants on the other side of the transaction. If your customers pay you with Amex, you pay more to process those cards. As a cardholder earning 2% back, that is not your problem. But if you are a business owner who both carries an Amex and accepts Amex from customers, you are seeing both sides of that equation.

Who should not use this card

Businesses with spending concentrated in Chase’s 5% categories: If you spend heavily on office supplies, internet, cable, or phone services, the Chase Ink Business Cash earns 5% in those categories (up to $25K/year). The flat 2% cannot compete with 5% in categories where you actually spend.

Businesses spending over $50K/year: The 1% rate after the cap is mediocre. Look at uncapped options or pair this card with a second card.

Businesses with international spending: The 2.7% foreign transaction fee wipes out your 2% cash back on international purchases and then some. Use a card with no FTF for overseas vendors.

Points optimizers: Amex Blue Business Cash earns cash back (statement credits), not Membership Rewards points. You cannot transfer rewards to airline or hotel partners. If you want flexible transfer partners, look at the Amex Blue Business Plus (2x Membership Rewards points, same $50K cap, no annual fee) instead.

Bottom line

The Amex Blue Business Cash earns 2% on everything with no annual fee and no category tracking. For businesses spending under $50K/year across diverse categories, it is the simplest way to earn meaningful cash back without optimizing anything. The 0% intro APR for 12 months adds financing flexibility for large purchases.

If your spending is more concentrated (heavy on office supplies, internet, or gas/restaurants), the Chase Ink Business Cash likely earns more through its 5% and 2% bonus categories. Both cards are free to hold, so carrying both and routing spending to the right card is a zero-cost optimization if you are willing to do the work.