Siren Lite (Free)

Create a Fixed-Rate Affiliate Program With Flexible Tracking, Rewards, and Partner Management

“How do I pay affiliates a flat dollar amount per sale instead of a percentage?”

A flat rate affiliate program built with Siren pays affiliates one fixed commission on every referred sale, so a $300 order on your WordPress store costs you exactly what a $20 order does.

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What's Included

Siren Lite (Free)

Program

Affiliate Program

Commission Fixed per transaction

Attribution Newest engagement wins

Tracking Referral links

Optional add-ons

Turn these on in the setup. Each installs with the recipe and can raise the plan it needs.

Lifetime commissions Siren Plus
Reusable collaborator group Siren Plus
Reporting-line overrides Siren Pro

Reviews

Trusted by Teams Running Real Incentive Programs

Armando J.

Principal Software Engineer, PerezCarreno & Coindreau

Siren Affiliate Manager is an exceptionally well-designed and thoughtfully built WordPress plugin. If you're running an affiliate program with multiple affiliates, different transaction types, or custom engagement triggers that need to generate commissions, this tool gives you serious power and flexibility. What really sets it apart, though, is the developer. Alex has been incredibly helpful and willing to customize the plugin for my specific use case. More importantly, he was focused on creating real value for my business - not just billing hours. That kind of mindset is rare. The plugin is robust, flexible, and clearly built by someone who understands real-world affiliate program complexity. I can't recommend Siren highly enough.

Julian Foster

Digital Strategist

Fixed-Rate Affiliate Program Snapshot

A quick overview of who this program is for, what it tracks, which partners it rewards, and how Siren helps you manage it.

Best for	Stores with wide price ranges that want predictable commission costs
Main goal	Referred sales at a known fixed cost per order
Partners involved	Affiliates promoting products at any price point
Actions tracked	Referred site visits and completed purchases
Rewards supported	Fixed dollar commission per referred transaction
Starting point	Start free with Siren Lite

What This Recipe Does

This recipe creates an affiliate program with a fixed dollar commission per sale. Instead of earning a percentage of the order total, affiliates earn a flat $10 for every referred transaction. The payout is the same whether the customer buys a $20 item or a $300 bundle.

Fixed-rate commissions work well when your product catalog spans a wide price range. A percentage model can create awkward situations where an affiliate earns $2 on a small order and $60 on a large one. A flat rate gives you predictable costs and gives affiliates a clear, simple earning structure.

Who It’s For

Stores with varied product pricing where percentage commissions would create unpredictable payouts for both the store and the affiliate
Business owners who want cost certainty, knowing exactly what each referred sale costs in commission
Affiliate program managers who want simple, easy-to-explain commission terms that attract a broad range of partners

How It Works

When you apply this recipe, Siren creates a program that tracks referred site visits. When someone lands on your store through an affiliate’s unique link, Siren records the referral. If that visitor makes a purchase, the affiliate earns a flat $10 commission.

The commission is fixed at $10 per transaction, stored internally as 1000 cents. It does not scale with order value. An affiliate referring a $25 sale and a $250 sale earns $10 in both cases.

If a customer clicks links from multiple affiliates before purchasing, the most recent referral gets credit. This keeps attribution simple and predictable.

Transaction compilers include line items only, so the commission triggers on product sales. Shipping, taxes, and fees do not factor into whether the commission fires, since the payout is a fixed amount rather than a percentage.

How the Fixed-Rate Affiliate Program Works in Siren

1

Start with a ready-made program

One number defines this program: the $10 every affiliate earns per referred sale. The recipe creates the program with that flat payout and last-touch attribution already set, so there is no percentage math anywhere in the setup.
2

Define partners and eligibility

Siren issues a personal referral link to every affiliate you add as a collaborator. A flat rate makes recruiting easier, because every prospective partner can see exactly what a sale pays before they sign up.
3

Set tracking rules

Siren records a referral whenever a visitor reaches your store through an affiliate link, and a purchase by that visitor triggers the commission. If several affiliates referred the same customer, the most recent referral earns the payout.
4

Customize rewards

Choose the dollar amount when you apply the recipe and adjust it later in program settings. Where a percentage rate pays $2 on a small order and $60 on a big one, this pays the figure you chose in both cases.
5

Manage approvals and payouts

Each referred sale's commission waits in Siren for your review before it pays out. Since every approval costs the same amount, your commission spend tracks your sales count exactly, with no surprises from oversized orders.

Everything You Need to Build and Manage a Fixed-Rate Affiliate Program

Siren gives you the tools to create the program structure, track the right actions, and reward the right partners, all from one flexible incentive program system.

Create

Prebuilt Fixed-Rate Affiliate Program recipe
Custom program builder
Program-specific rules
Partner eligibility rules
Product and category filters
Multiple program support

Track and Manage

Referral link tracking
Coupon tracking
Product or category tracking
Lead, form, or signup tracking
Partner dashboard
Payout management

Reward

Percentage commissions
Flat-rate rewards
Recurring commissions
Royalties or revenue share
Tiered rewards
Performance bonuses

Why Use Siren for a Fixed-Rate Affiliate Program?

Traditional affiliate software tools	Siren
Built for one program type	Built for multiple incentive programs
Often limited to one reward model	Supports commissions, bounties, royalties, revenue share, and bonuses
Rewards usually tied to one action	Rewards can be tied to different measurable actions
Harder to manage overlapping programs	Program groups and rules control how programs interact
May require multiple tools as you grow	Supports different partner programs from one system

A flat payout per sale is something most affiliate software can handle. What it usually cannot do is run beside a tiered track, a referral program, or a lead bounty on the same install, and Siren is built as a system for exactly that kind of mix.

Similar Programs, and When to Use Each

Recipes that share machinery with this one, the rule that actually separates them, and the situation where the other recipe is the better pick.

Program	How it differs	Use it instead when
B2B Referral Program	The B2B Referral Program locks credit to the referrer who introduced a prospect first, so its $50 default bounty holds steady through an evaluation that drags on for months. The Fixed-Rate Affiliate Program gives the commission to the newest referral before purchase.	Choose the B2B Referral Program when referrals come from clients and professional partners whose introductions take a long time to close.
Refer-a-Friend Program	Mechanically the Refer-a-Friend Program is the same build as the Fixed-Rate Affiliate Program: a flat $10 reward on each referred sale, last-touch credit. What changes is who holds the link, since it enrolls your own customers through a registration form rather than recruited affiliates.	Choose the Refer-a-Friend Program if you want word-of-mouth from existing buyers, often settled as store credit, instead of commissions to outside marketers.

Connect Your Fixed-Rate Affiliate Program to the Tools You Already Use

Siren works as the incentive layer behind the systems where partner-driven actions happen: your website, checkout, ecommerce store, forms, LMS platform, subscription flow, or custom workflow.

WordPress WooCommerce Easy Digital Downloads North Commerce REST API Custom workflows

Start Your Fixed-Rate Affiliate Program for Free

Use Siren Lite to launch your first flat rate affiliate program without paying upfront. Start with a real program, test your setup, and upgrade when you need more advanced partner management, reward logic, or attribution.

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Frequently Asked Questions

What is a flat rate affiliate program?

A flat rate affiliate program pays partners a set dollar amount for every sale they refer, instead of a percentage of the order total. If your rate is $10, an affiliate earns $10 on a $25 sale and $10 on a $250 sale. The appeal is predictability: you know your cost per referred sale before it happens, and affiliates know exactly what their work is worth.

Who should use a flat rate affiliate program?

Stores whose catalogs mix inexpensive and premium products get the most out of one. A percentage commission on that kind of catalog produces tiny payouts on small orders and outsized ones on big orders, which frustrates both sides. A flat rate also fits anyone who wants commission terms they can explain to a new partner in a single sentence.

Is the commission always the same regardless of order size?

Yes. The affiliate earns the same flat amount on every referred sale, whether the order is $15 or $500.

Can I set the fixed amount to something other than $10?

Yes. Adjust the incentive amount when you apply the recipe or change it later in Siren's program settings.

What currency does this use?

The recipe defaults to USD. The fixed amount is stored in cents internally, so $10 is represented as 1000. Siren handles the conversion for display.

How does attribution work when multiple affiliates refer the same customer?

The most recent referral wins. If a customer clicks affiliate A's link on Monday and affiliate B's link on Wednesday, then buys on Thursday, affiliate B earns the commission.

flat-rate-commission fixed-affiliate-commission predictable-payout affiliate affiliate-tracking how-to-start-an-affiliate-program