All work

PayKaduna

A unified portal for citizens and businesses to pay government fees and taxes, with admin tools for invoicing, reconciliation, compliance tracking and real-time analytics.

Role
Lead Product Designer, GX Informatics
Client
PayKaduna
Industry
GovTech · Public revenue
Year
2024
PayKaduna homepage on a retro computer monitor, with the receipt verification bar and tiles for paying government revenues
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Project overview

One portal to pay, verify and reconcile public revenue.

PayKaduna is a unified portal where citizens and businesses pay government fees and taxes. Behind it are admin tools for invoicing, reconciliation, compliance tracking and real-time analytics, aimed at reducing leakages and improving transparency.

As Lead Product Designer at GX Informatics, I designed the citizen and admin workflows and the revenue operations dashboards.

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Context & problem

Fragmented, cash-led revenue flows hurt transparency and trust.

Paper receipts and manual reconciliation made it hard to know what to pay or to prove payment, which led to leakages, disputes and poor visibility of internally generated revenue (IGR).

A pile of crumpled paper receipts
Paper proof: easy to lose, hard to trust.
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Who it serves

Two sides of every payment.

Citizens

Paying personal fees and taxes, and needing proof that they've paid.

Businesses

Meeting their obligations to the state.

Revenue officers & MDAs

Invoicing, reconciling and tracking compliance.

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Project goals

Clear obligations, trusted proof, faster reconciliation.

  1. Make it obvious what to pay.
  2. Give people proof of payment they can trust.
  3. Make reconciliation faster for finance teams.
  4. Give agencies real-time visibility of revenue.
05 / 13

Research & discovery

Two blockers, straight from the people involved.

Officer interviews and citizen walkthroughs surfaced the same two problems: people didn't know what to pay, and they had no trusted proof once they had paid.

Those two blockers became the brief. Everything on the citizen side was organised around making paying and verifying effortless.

Session counts and research artefacts from this project aren't published.

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Constraints

Replacing habits, not just paper.

Cash and paper habits

People were used to paying in person and holding a paper receipt as proof.

Many revenue heads

Fees and taxes spanned many agencies, each organising them differently.

Proof that anyone can check

A receipt had to be verifiable by an officer or third party, not just kept.

Two very different users

Citizens pay occasionally; officers reconcile every day.

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Product decisions

Designing around what people came to do.

Pay and Verify receipt as primary actions

Elevating the two things people came to do. The original case study credits this with higher completion and fewer walk-ins.

Standardised revenue heads

One consistent structure for what can be paid, instead of every agency doing it differently.

Instant QR e-receipts

Proof of payment that can be checked, not just kept.

Dashboards with audit trails

Real-time visibility for agencies, with a record of what happened.

PayKaduna homepage on a retro computer monitor, with a Verify bar for invoices and receipts at the top and payment tiles for each revenue head below
Verify at the top, payment tiles below.
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Information architecture & workflows

From choosing what to pay to a verified receipt.

  1. Step 01Choose what to pay (standard revenue heads)
  2. Step 02Pay through any supported channel
  3. Step 03Receive an instant QR e-receipt
  4. Step 04Anyone can verify the receipt
  5. Step 05Agencies reconcile on live dashboards
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Exploration & iterations

Essentials first, extras close by.

The home screen leads with the two actions research pointed to, while supporting tools such as a tax calculator, e-library and news sit one step away: useful, without competing for attention.

PayKaduna tax calculator on a retro computer monitor, showing income inputs and a summary of taxable amounts
Tax calculator: a supporting tool, one step away.
PayKaduna news portal on a retro computer monitor
News portal for public updates.
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Final solution

Pay, verify and reconcile in one place.

Standardised revenue heads, e-invoicing, multi-channel payments, instant QR e-receipts, and real-time dashboards and audit trails for agencies.

PayKaduna payment confirmation on a retro computer monitor: registration successful, with payment details and a proceed button
Instant confirmation.
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Collaboration & implementation

Designing with revenue officers, not around them.

Revenue officers shaped the product through interviews, alongside walkthroughs with citizens. On the admin side, the aim was cleaner books and better IGR visibility for MDAs, with less back-and-forth between finance and operations.

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Results & evidence

Fewer disputes, faster reconciliation, more people paying digitally.

The project reported fewer disputes, faster reconciliation and higher digital adoption, with cleaner books and better IGR visibility for MDAs.

These are outcomes reported for the project. Published figures aren't available.

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Lessons & reflections

What changes when people can't choose a different product.

When someone needs to pay a tax or access a public service, they often can't switch to another platform because the experience is frustrating.

PayKaduna taught me that clarity and accessibility aren't nice additions. A confusing process can mean wasted time, failed transactions, or someone unable to access a service. That responsibility changes how you design.