
Surplus
Automated budgeting tool that analyzes spending habits and directs surplus money to savings and investment goals. (Full case study coming soon!)
Timeline
2 months
Team
Solo
Skills
Product Design, User Research
project overview
Rather than relying on manual categorization and constraining budgets, Surplus automates zero-based budgeting and allocates leftover money to user-designated goals based on priorities and timelines.
By analyzing spending habits through linked accounts and cards, it lets users know where they stand based on average spending across fixed, flexible, and non-monthly categories which impacts their projected surplus income at month-end.
background
Although most young adult Canadians are investing their money, they are still more likely to hold savings in cash compared to Gen Xs and Boomers who are more likely to put their savings into investments. I wanted to know:
What's preventing young adults from investing more?
research
I surveyed and interviewed twelve participants aged 24–34 to understand their investing, saving, and budgeting behaviours, and what frustrations they have across these categories.


KEY insights
Based on my responses, I realized most young adults are actively investing, but their biggest barriers are 1. lack of income and 2. lack of guidance.
This shifted my focus from encouraging more investing to helping users make the most of the money they already have left over.
Users lack confidence and knowledge on investing.
Guidance on where to invest
Users need personalized guidance on where to direct their money for maximum growth and goal completion.
Users have leftover money after expenses, but don't keep track of where it goes.
Help maximize leftover income
Users need visibility into their surplus income so they can save it, rather than losing it to untracked spending.
Users find manual tracking tedious and too constraining.
Automated, flexible budgeting
Users need a flexible budgeting system that tracks and categorizes expenses automatically.
Users report that irregular expenses are a big barrier to saving consistently.
Track and predict irregular expenses
Users need a way to account for irregular and non-monthly expenses in their budget.
competitve analysis
I analyzed three budgeting apps to understand how they handle tracking expenses and setting spending limits by categories.
YNAB (You Need a Budget)
Zero-based budgeting app that encourages users to assign every earned dollar a role, whether spending or saving.
Pros
All money is accounted for (zero-based)
Cons
Manual budgeting
Steep learning curve
Monarch
Comprehensive financial planner that brings banking, investments, and goal-setting into one place.
Pros
Clean, intuitive interface
Collaborative (couples/families)
Cons
"Flexible" budgeting still requires setting manual limits
Mint
Personal finance app that automatically tracks and categorizes transactions for insights on user spending habits.
Pros
Fully automated
Average spending is used if limits aren't set
Simple, beginner-friendly
Cons
Defunct and its replacement is missing many features
Passive; shows past spending only
design opportunity
A flexible budgeting system that automatically directs surplus money towards specific goals.
Existing budgeting apps are too rigid and don't account for irregular expenses without users having to manually adjust their budget. Additionally, none of them guide users on where to direct leftover income based on savings goals and priorities.
information architecture
Before designing, I mapped out the information architecture for the app. This gave me a better understanding on what to include in my designs and which user flows were important to include.

Automated budgeting
Securely link your bank accounts and cards to automatically track your net worth and transactions.
All-in-one financial planner
Spending habits are analyzed to calculate your monthly averages and projected surpluses.
Direct surplus to goals
Create financial goals and Surplus can help you allocate leftover money every month to achieve them.







