Track daily expenses with category tagging, spending trends, top merchants, and monthly summary dashboard with charts.
Small purchases become easier to inspect when they are recorded with a date, amount, merchant, and category tag. The Expense Tracker Dashboard rolls those entries into a monthly summary, category breakdowns, spending-trend charts, and a top-merchants view. It answers what was recorded, where it was categorized, and when spending occurred. The usual surprise is that every view is only as complete as its entries: a missing purchase, duplicate, incorrectly dated refund, or inconsistent merchant label can distort several summaries at once.
A concrete input and expected output from the current implementation.
Input
Enter these records: Date: 2026-08-03; Merchant: Corner Cafe; Category: Food; Amount: $12.00 Date: 2026-08-04; Merchant: City Transit; Category: Transport; Amount: $8.00
Expected output
August 2026 total: $20.00. Category totals: Food $12.00; Transport $8.00.
$12.00 plus $8.00 equals $20.00. Both expenses have August 2026 dates, and each category total contains its single assigned expense.
Every expense contributes its amount to the month determined by its date and to the category attached to it. The same record also supplies a merchant label and data for the spending timeline. Because one entry feeds several dashboard components, its amount, date, category, and merchant affect multiple summaries. The charts are alternate groupings of the recorded expenses, not independent sets of transactions.
Read the monthly total first, then compare category and merchant views covering that month. Category amounts should add to overall recorded spending when every included expense has one category and the views contain identical records. Trend charts show the timing and direction of spending, but not why it changed. Inspect the individual entries when a spike, unfamiliar merchant, or unexpectedly large category needs verification.
No. It summarizes the expense records available to the dashboard and helps reveal spending patterns, but it does not prove that every transaction is present, match balances to an external statement, preserve supporting evidence, or determine accounting or tax treatment. Reconcile important totals against source records and retain the receipts or invoices required for your situation.
Different merchant text can produce separate groups. For example, a full business name, an abbreviation, and a location-specific card descriptor may represent the same seller but appear as distinct labels. Use consistent merchant names when recording expenses, then recheck the top-merchants view. Keep separate labels when the locations or business units genuinely need separate tracking.
The example and behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
Calculate gross, operating, and net profit margins from cost and revenue with breakeven analysis.
Convert between annual salary and hourly rate with adjustments for work hours, overtime, and benefits.
Calculate sales tax amounts, tax-inclusive and tax-exclusive prices for any tax rate or jurisdiction.
Calculate return on investment from initial cost and final value with annualized ROI and comparison tables.
Convert between markup and margin percentages, calculate selling price, and compare pricing strategies.
Convert numeric amounts to written words for invoices, checks, and legal documents in multiple currencies.