How to Get 25% Cash Back with Fluz at Starbucks (and other eligible merchants)
If you’re already buying coffee, breakfast, or an afternoon pick-me-up at Starbucks, Fluz can help you earn more from money you were planning to spend anyway.
One of the best ways to maximize your Starbucks savings is by using a Fluz Boost.
Fluz Boosts can provide an additional 25% cashback on the first $10 of an eligible purchase at participating Boost merchants. That means a properly used $10 Boost purchase can potentially earn $2.50 in boosted cashback, in addition to helping you get more value from an everyday purchase.
Here’s how it works.
What Is a Fluz Boost?
A Fluz Boost is a special reward that increases the cashback you can earn at select participating merchants.
According to Fluz, a Boost currently provides 25% additional cashback on the first $10 of an eligible purchase. Boost merchants can change, so you should always verify that Starbucks is currently accepting Boosts inside your Fluz account before making a purchase.
Think of a Boost as a limited-use cashback accelerator.
Instead of earning only the normal cashback available at a merchant, an eligible Boost temporarily increases your rewards on the first $10 you spend.
For example:
Eligible purchase amount: $10
25% Boost: $2.50 cashback
That makes a $10 Starbucks purchase an easy way to understand just how valuable a Fluz Boost can be.
Step 1: Check Your Available Fluz Boosts
Open the Fluz app and look for your available Boosts.
Fluz says Boosts can be found in areas such as the Discover or Maximize sections of the app. You'll also want to check the merchant page to confirm that Starbucks is currently listed as an eligible Boost merchant.
This is important because Boost merchant eligibility can change.
Before purchasing, verify:
You have an unused Boost.
The Boost has not expired.
Starbucks is currently eligible.
The purchase meets the minimum qualifying amount.
Fluz Boosts currently expire 60 days after issuance, so it makes sense to use them on purchases you already planned to make rather than letting them expire.
Step 2: Purchase at Least $10
Boosts apply to the first $10 of an eligible purchase.
That means $10 is the sweet spot if your goal is to maximize the percentage return from the Boost itself.
For example:
If you purchase a $10 Starbucks gift card and apply an eligible 25% Boost:
$10 × 25% = $2.50
You could receive $2.50 in Boost cashback from that portion of the purchase.
If you purchase more than $10, the 25% Boost generally applies only to the first $10.
For example:
$20 Starbucks purchase
First $10 at 25% = $2.50 Boost cashback
Remaining $10 = subject to the merchant's normal applicable cashback rate and Fluz terms.
So purchasing more than $10 can still make sense, but the special 25% Boost is concentrated on that first $10.
Step 3: Buy a Starbucks Gift Card Through Fluz
Instead of paying Starbucks directly with your regular debit or credit card, purchase a Starbucks digital gift card through Fluz.
A simple process looks like this:
Open Fluz.
Search for Starbucks.
Select the available Starbucks gift-card option.
Enter at least $10.
Confirm that your Boost is being applied.
Review the cashback shown before completing your purchase.
Pay for the gift card.
Receive your digital Starbucks gift card.
Always pay attention to the final cashback amount shown before completing the transaction.
Fluz merchant rates and promotions can change, and the rate displayed for your transaction is the most important number to review.
Step 4: Add the Gift Card to Your Starbucks App
Once you receive your Starbucks gift card, you can add the balance to your Starbucks account.
This makes the process even more convenient.
Your Starbucks balance can then be used just like the money you normally load into the Starbucks app.
So instead of thinking:
"I'm buying a gift card."
Think:
"I'm prepaying for the Starbucks purchases I was already going to make—but earning cashback first."
That simple shift in how you pay is the heart of the Fluz strategy.
Step 5: Continue Earning Starbucks Rewards
The savings can become even more attractive when you combine Fluz with the Starbucks Rewards program.
You may be able to:
Earn Fluz cashback when purchasing the gift card
and then
Earn eligible Starbucks Stars when using your Starbucks account
That gives you two potential reward layers from essentially the same planned spending.
Your strategy becomes:
Buy Starbucks gift card through Fluz
↓
Apply your 25% Boost
↓
Earn Fluz cashback
↓
Load the gift card into Starbucks
↓
Use Starbucks normally
↓
Earn eligible Starbucks Stars
This is called reward stacking.
START HERE: Use Fluz for purchases you were going to make anyway.
How Much Can You Save?
Here's the simplest example.
Example: $10 Starbucks Purchase
You purchase:
$10 Starbucks gift card
You apply:
25% Fluz Boost
Potential Boost cashback:
$2.50
Your effective cost after the Boost cashback would be:
$7.50
Yet you still have:
$10 in Starbucks purchasing power
That's the equivalent of receiving $2.50 back from a $10 planned purchase.
What About a $25 Starbucks Purchase?
Suppose you buy a $25 Starbucks gift card.
The 25% Boost applies to the eligible first $10:
$10 × 25% = $2.50
The remaining $15 would generally earn according to whatever standard Starbucks cashback rate is available to you through Fluz at that time.
Your total reward could therefore include:
$2.50 from your Boost
Applicable regular Fluz cashback
Eligible Starbucks Stars when you spend the balance
That is where reward stacking becomes powerful.
New Fluz Members Can Receive Two Sign-Up Boosts
Boosts are especially useful for people who are new to Fluz.
Fluz currently states that users who sign up through a Fluz member's referral code or referral link receive two Sign-Up Boosts. Users who register without an invitation receive one Sign-Up Boost.
That means a referred new member may have two opportunities to receive enhanced cashback on eligible Boost purchases.
For example:
Boost #1
$10 eligible purchase × 25% = $2.50
Boost #2
$10 eligible purchase × 25% = $2.50
Potential Boost cashback:
$5 total
That's on $20 worth of qualifying first-$10 purchase portions.
For someone who already shops at Starbucks or another participating Boost merchant, this can be an easy way to experience the benefits of Fluz immediately.
You Can Also Earn More Boosts
Sign-up Boosts aren't necessarily the only Boost opportunities available.
Fluz also offers features such as Brand Challenges, where users may unlock additional Boosts by completing qualifying purchase activity.
Fluz says Brand Challenge Boosts can provide additional cashback of up to 25% on the first $10 spent at eligible Boost merchants. Qualifying Brand Challenge purchases currently require at least a $10 spend.
That means your strategy shouldn't simply be:
Use my two Boosts and forget about them.
Instead, periodically check Fluz for:
Brand Challenges
Promotional Boosts
Spending bonuses
Merchant promotions
Other available rewards
The Fluz ecosystem is designed to reward active users in several different ways.
A Smart Starbucks Boost Strategy
If Starbucks is currently eligible for your Boost, one simple strategy would be:
Purchase only what you know you'll use.
If you normally spend $20 or $30 each week at Starbucks, purchasing a $10 or slightly larger gift card may make sense.
You aren't creating additional spending.
You're moving planned spending through Fluz.
Focus your Boost on the first $10.
Because the 25% Boost applies to the first $10, that's where your highest percentage savings occur.
Use the Starbucks balance over time.
You don't have to spend the entire amount immediately.
Load the gift card into your Starbucks account and use it during future visits.
Continue earning Starbucks Stars.
When eligible, continue using your Starbucks account so you're not sacrificing the retailer's loyalty benefits.
Why $10 Is the Magic Number
The structure of the Boost makes $10 especially important.
Consider these examples:
Starbucks Gift Card25% Boost PortionBoost Cashback$5May not meet qualifying minimum—$10$10$2.50$15First $10$2.50$25First $10$2.50$50First $10$2.50
The Boost isn't designed to give you 25% back on an unlimited purchase amount.
It gives you the enhanced rate on the qualifying first $10.
That's an important distinction when describing the offer.
Don't Spend More Just to Earn Cashback
There's one rule every cashback shopper should remember:
Cashback only saves money when you're buying something you were already planning to purchase.
Spending $10 unnecessarily to earn $2.50 is still spending money.
The ideal Starbucks Boost user is someone who can say:
"I was going to spend this $10 at Starbucks anyway."
Now the purchase becomes more efficient.
Instead of:
Spend $10 → receive coffee
you potentially get:
Spend $10 → receive $10 Starbucks value + $2.50 Boost cashback + eligible Starbucks rewards
That is smart reward optimization.
Build a "Check Fluz First" Habit
The Starbucks strategy illustrates a larger habit that can help you maximize Fluz.
Before making a planned purchase:
Check Fluz first.
Before Starbucks?
Check Fluz.
Before eating out?
Check Fluz.
Before shopping?
Check Fluz.
Before purchasing a birthday gift?
Check Fluz.
Before placing a large online order?
Check Fluz.
You may discover that a merchant has:
Standard cashback
A Boost
A special promotion
A Brand Challenge
Another bonus opportunity
A few seconds of checking could turn an ordinary transaction into a cashback opportunity.
One Coffee Purchase Can Teach the Entire Fluz System
Starbucks is a particularly useful example because the purchase is easy to understand.
You're not buying an unusual product.
You're not changing restaurants.
You're not waiting weeks for a rebate.
You're simply changing the path your money takes.
Instead of:
Money → Starbucks
you use:
Money → Fluz → Starbucks
and potentially collect cashback along the way.
With an eligible 25% Boost, that pathway becomes even more rewarding.
Final Example
Imagine you're planning to spend $10 at Starbucks tomorrow morning.
Without Fluz
Spend: $10
Starbucks purchasing power: $10
With an eligible Fluz 25% Boost
Purchase Starbucks gift card: $10
Potential Boost cashback: $2.50
Starbucks purchasing power: $10
Then use that Starbucks balance while earning any eligible Starbucks Rewards benefits.
You still buy your coffee.
You still spend the same planned $10.
But this time you've potentially captured $2.50 in additional value before you ever order your drink.
The Bottom Line
Fluz Boosts can make everyday purchases significantly more rewarding.
When Starbucks is an eligible Boost merchant, the strategy is simple:
Check your available Boosts.
Purchase at least $10 in eligible Starbucks value through Fluz.
Apply your 25% Boost.
Earn up to $2.50 in Boost cashback on the first $10.
Add your Starbucks gift card to the Starbucks app.
Continue earning eligible Starbucks Rewards.
And most importantly:
START HERE: Use Fluz for purchases you were going to make anyway.
That's the difference between simply spending money and making your everyday spending work a little harder for you.
Fluz Boost availability, participating merchants, cashback rates, promotional offers and program terms can change. Always verify the Boost and cashback displayed in your Fluz account before completing a purchase.

