TemplateFREE⏱️ 60-90 minutes
Budgeting App Product Spec Template
Free template for specifying personal budgeting app features. Covers account aggregation, transaction categorization, budget rules, savings goals, bill...
Updated 2026-03-05
Budgeting App Spec
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Frequently Asked Questions
How do I handle transactions that change between pending and posted?+
Pending transactions should display with a "pending" badge and update automatically when posted. If the amount changes (common with tips at restaurants or gas station holds), update the display amount and recalculate budget impact. Never count pending transactions toward budget limits unless the user opts in.
What aggregation provider should I use?+
Plaid dominates in the US market. TrueLayer is strong in the UK and EU. MX and Finicity are alternatives with different institution coverage. Choose based on your target market's institution coverage, pricing model, and API reliability. Test with your top 10 target institutions before committing.
How should I handle multi-currency accounts?+
Display each account in its native currency. For budget calculations and totals, convert to the user's primary currency using a daily exchange rate. Show both the original and converted amounts. Do not let exchange rate fluctuations trigger false budget alerts.
Should budgets be weekly or monthly?+
Default to monthly. It matches how most people think about money (rent, salary, subscriptions are monthly). Offer weekly as an option for users who want tighter control. Bi-weekly budgets are useful for users paid every two weeks.
How do I handle refunds in budget calculations?+
Refunds should credit back to the original budget category. If a user spends $100 on Shopping and gets a $30 refund, the net budget impact is $70. Display both the gross spend and the refund separately so users can see the full picture.
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