Most affiliate programs start in a spreadsheet. That works until it doesn’t. Somewhere between 30 and 50 active affiliates the manual commission checks become a job in themselves, and a SaaS platform looks like the obvious next step. For a lot of UK businesses it is. But if your commission rules are unusual, your stack is bolted together from systems no platform has heard of, or your industry has its own compliance to satisfy, generic affiliate tools start asking you to work the way they work.
At ByteGears we build affiliate management software around how your program actually runs. A custom build is a one-off project rather than a subscription that quietly grows every year, and you own the platform and the data at the end of it. We’re a UK software consultancy, and most of our work is with SMEs in the 1 to 200 employee range.
Where off-the-shelf affiliate software runs out of road
Off-the-shelf platforms are good at the common case. The trouble starts at the edges, and these are the complaints we hear most:
- Rigid commission logic. Most tools handle a flat percentage or volume tiers and little more. They struggle with rules like “20% of the first month, 5% of MRR for a year, plus a bonus once the customer passes £100 MRR”, or geographic rates, or automatic chargeback clawbacks.
- Per-seat pricing that punishes growth. Once you have affiliate managers, support staff, analysts and a finance reviewer in the system, per-user fees climb fast. There is rarely a volume discount for the team size a real program needs.
- Integrations that don’t reach your stack. Pre-built connectors cover Shopify and Stripe. They don’t cover your proprietary ERP or custom billing system, and bespoke integrations from a SaaS vendor are expensive and slow.
- Reporting you can’t shape. No custom metrics, no drilling down by partner tier or customer segment, weak export. Teams end up back in spreadsheets to reconcile.
- Tracking gaps. As third-party cookies disappear from Safari and Firefox, cookie-based tracking quietly loses conversions, and platform numbers stop matching your billing system.
- Thin UK compliance. US-hosted platforms with vague DPAs, no real cookie-consent handling for affiliate tracking, and no affiliate earnings statements for tax.
None of this is fatal on its own. Together it means staff time lost to manual workarounds, money spent on add-ons, and affiliate performance you can’t see clearly enough to act on.
What you get with a ByteGears build
Commission logic that matches your real rules
We model the rules you actually pay on, not the ones a platform allows. Percentage, fixed, tiered, recurring, geo-based rates, performance bonuses, sub-affiliate splits and clawbacks when an order is refunded. Every commission record carries an audit trail showing the rate applied and any adjustment.
Built around your process
We map how your program runs first, then build software that fits it rather than replacing it. The affiliate portal is your brand, and the merchant side shows the metrics your team works from.
It connects to your stack
Direct connections to your e-commerce platform, payment and billing systems, CRM, accounting software and marketing tools. Where you run a proprietary ERP or custom billing system, we build the adapter rather than telling you it can’t be done.
You own it
One development project instead of a subscription that never ends and a price that creeps. You own the code and the data, there are no per-seat fees as your team grows, and you are never one vendor decision away from a forced migration.
UK compliance built in
GDPR-compliant data handling, consent and cookie records for affiliate tracking, audit logging, and data retention rules that keep transaction records as long as UK tax law expects. Affiliate earnings statements for self-assessment, and UK or EU hosting where data residency matters.
Room to grow
The modular design lets you add affiliate tiers, deeper analytics, new sales channels and further integrations later, without re-platforming.
The modules we typically build
- Affiliate management. Registration, approval workflows and status handling, with a self-service portal showing each affiliate their links, earnings and payout requests.
- Tracking. Link and pixel tracking backed by server-to-server postbacks, with configurable attribution windows, so numbers hold up as third-party cookies disappear.
- Commission engine. Automatic calculation on conversion, multi-tier and sub-affiliate hierarchies, recurring-revenue rules and chargeback clawbacks.
- Payouts. Scheduled and on-demand payouts with minimum thresholds, multiple methods and currencies, and reconciliation back to your accounts.
- Fraud detection. Velocity checks, duplicate-IP and device-fingerprint flags and geographic anomaly scoring, with a review queue tuned to your traffic to keep false positives down.
- Reporting. Real-time dashboards, performance leaderboards, traffic-source breakdowns and a custom report builder, with export to CSV, PDF and your BI tools.
- Role-based access. Permissions so affiliate managers, finance and support each see only what they should.
- Compliance records. Affiliate agreements with signature capture, earnings statements, audit trails and data deletion workflows.
- Automated communications. Onboarding sequences, conversion and payout notifications and performance alerts.
- API and webhooks. A documented API so the platform fits your current stack and whatever you add later.
How the project runs
Phase 1: Discovery and planning (2-4 weeks)
We map your commission structure, affiliate tiers and payout rules, list the integration points, and pin down compliance needs before any code is written. The aim is to leave this phase knowing exactly what gets paid, when, and on what evidence.
Phase 2: Development (8-12 weeks)
Development in sprints with regular demos. We build the tracking, commission engine, portal and core integration first, get early feedback into the work, and QA throughout. The hard parts are usually accurate tracking and the long tail of commission permutations, so we test edge cases like refunds, chargebacks and multi-party splits deliberately.
Phase 3: Testing, parallel run and deployment (2-4 weeks)
User acceptance testing, security checks and performance tuning. If you are moving an established program, this is also where we run the new system alongside the old one and reconcile commission figures, so affiliates never see a number they can dispute. Cutover itself is short, with a documented rollback plan.
Phase 4: Training and support (ongoing)
Administrator and finance-team training, end-user documentation, post-launch support included, and a support arrangement afterwards if you want one.
A focused first build typically runs 3 to 5 months. Programs with deep commission logic, multi-tier hierarchies or several integrations take longer.
What it costs
A custom build is a larger commitment upfront than a monthly subscription. The fair comparison is total cost over time, not the first invoice.
Mid-market affiliate SaaS rarely stops at the headline price. Once you add custom integrations, extra seats as the team grows, support add-ons and the occasional transaction fee, the real monthly figure climbs, and it never stops. Switching later carries its own cost: data export, re-onboarding affiliates and a tracking gap during migration. A custom build is a one-off project, after which you own the platform and your data outright.
The price of a build depends on:
- How complex your commission rules are
- How many integrations you need, and whether any are with proprietary systems
- The reporting and analytics you want
- Fraud detection depth and any industry-specific compliance
- The number of users and access levels
We give you a fixed quote after a free consultation, once we understand what you actually need. If an off-the-shelf tool would genuinely serve you better, we’ll say so.
Where this gets used
SaaS and subscriptions. Attribute trial conversions and recurring revenue to affiliates, with commission rules tied to MRR, LTV or retention rather than a single flat rate.
E-commerce. Manage large numbers of influencers, bloggers and coupon partners across Shopify, WooCommerce or multiple brands, with fast onboarding and a self-service portal.
B2B services and consulting. Referral and partner programs with manual approval, deal registration and partner-portal relationships, not just link tracking.
Financial services and fintech. Auditable introducer and partner tracking with UK or EU data residency, FCA-relevant record-keeping and isolation of sensitive data.
Digital publishing and networks. Hundreds of publishers, sub-publisher structures and revenue-share deals, with the API depth and reporting a network operator needs.
Dropshipping and low-margin retail. Granular commission control, refund-aware clawbacks and traffic-quality filtering where margins leave no room for paying on bad conversions.
Gaming, crypto and other high-fraud verticals. Fraud detection tuned to your own abuse patterns rather than a generic filter, alongside tighter compliance workflows.
Because it’s a custom build, the software handles the commission models, partner relationships and compliance rules that are specific to your sector.
Common Questions About Custom Affiliate Management Software
When does a custom affiliate platform make more sense than SaaS?
If you have fewer than 50 affiliates, one product, one region and a straightforward commission rate, an off-the-shelf tool is usually the sensible choice. A custom build earns its place when the standard ones get in the way: multi-tier or sub-affiliate structures, commission rules tied to MRR or customer LTV, chargeback clawbacks, regulated-industry audit trails, a proprietary ERP or billing system to integrate with, or a team large enough that per-seat SaaS pricing has started to hurt. We will tell you honestly if SaaS still covers you.
How does the cost compare to SaaS over time?
A custom build is a larger upfront commitment than a monthly subscription, but it is a one-off project cost rather than a fee that runs forever and tends to rise each year. Mid-market affiliate SaaS often lands somewhere between a few hundred and a few thousand pounds a month once custom integrations, extra seats, support add-ons and transaction fees are included. Over a three-to-five year window, owning the platform frequently works out lower, and you keep the asset and the data. We give you a fixed quote after discovery so you can compare like for like.
What's the typical development timeline?
A focused first version with tracking, commission calculation, an affiliate portal, payouts and one major integration is usually a 3-5 month build. Programs with deep commission logic, multi-tier hierarchies or several integrations run longer. Where you are migrating an established program, we add time for a parallel run so commission figures are validated against your current system before cutover.
Can you integrate with our existing systems?
Yes. We build API-first and connect to the systems your program actually depends on: e-commerce platforms (Shopify, WooCommerce, Magento, BigCommerce), payment and billing (Stripe, PayPal, Wise, Paddle), CRMs (HubSpot, Salesforce, Pipedrive), accounting (Xero, QuickBooks, Sage) and marketing tools. We also build custom adapters for proprietary ERP or legacy billing systems where no off-the-shelf connector exists. Refund and chargeback events feed back in so clawbacks are handled automatically rather than by hand.
How do you handle affiliate tracking accuracy and fraud?
We combine link and pixel tracking with server-to-server postbacks so attribution holds up as third-party cookies disappear from Safari and Firefox. Fraud detection is tuned to your traffic rather than a generic filter: velocity checks, duplicate-IP and device-fingerprint flags, and geographic anomaly scoring, with a review queue so legitimate affiliates are not blocked by false positives.
What about UK GDPR and tax compliance?
Builds include UK GDPR-compliant data handling, consent and cookie records for affiliate tracking, role-based access, audit logging and data retention and deletion workflows. Transaction records can be kept for the six years UK tax law expects while personal data is handled separately. We can also generate affiliate earnings statements for self-assessment and keep the relationship records that help if HMRC ever questions an affiliate's status. Hosting can be UK or EU based where data residency matters.
What happens after launch?
Every project includes post-launch support, administrator training and end-user documentation. After that you choose what suits you: ad-hoc development hours, an ongoing support arrangement, or training so your own team manages day-to-day changes. Because you own the code, you are never locked into us.