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Should I buy it now, plan, or wait?
Enter any upcoming expense or purchase. Our engine verifies your recurring payroll, essential bills, and reserve buffer over the next 90 days with mathematical rigor.
How “Should I Buy It?” Works
Most impulse buys happen because people look at their current bank balance instead of their upcoming cash commitments. Our simulation engine projects every dollar across the next 90 days before you spend.
90-Day Liquidity Curve
Calculates exact daily cash balances by harmonizing your recurring payday cycles with fixed monthly obligations like rent, utilities, and debt payments.
Emergency Buffer Defense
Enforces your sacred reserve floor. If a prospective purchase causes your liquid funds to dip below your safety threshold at any point, the model flags it immediately.
Trough Risk Detection
Pinpoints the exact calendar dates when your liquid cash reaches its lowest vulnerability point, preventing overdrafts before the next payroll disbursement.
The 4 Decision Outcomes Demystified
Rather than giving vague financial advice, “Should I Buy It?” generates one of four mathematically verifiable recommendations tailored to your cash position.
Safe to Purchase Immediately
Your 90-day liquidity simulation stays comfortably above your minimum emergency buffer across every upcoming bill payment and payroll cycle. No budget strain detected.
Affordable with Strategic Timing
Buying today creates a temporary cash squeeze before your next pay cycle. Postponing the purchase by 2 to 4 weeks aligns the expense with incoming cash flow seamlessly.
Tight Margin of Error
The purchase is technically feasible with existing cash, but it depresses your discretionary cushion below 15%. Any single unexpected bill could cause an emergency breach.
Not Recommended
Executing this purchase causes a severe buffer violation or projected negative balance. We strongly advise pausing or exploring structured installment alternatives.
Frequently Asked Questions
Everything you need to know about evaluating discretionary purchases, cash flow simulations, and privacy.
Rather than simply checking if your current bank account balance exceeds the item price, our simulation projects your day-by-day cash flow over the next 90 days. It accounts for upcoming salary disbursements, recurring bill due dates, and your required emergency buffer. If the purchase would cause your liquid balance to dip below your safety cushion at any point over 90 days, it alerts you.
Bank balances reflect a static snapshot, not future commitments. A balance of $3,000 may seem adequate for an $800 laptop today, but if rent ($1,500) and insurance ($400) are due in 5 days before your next paycheck arrives, making that purchase creates an immediate liquidity crisis.
No. “Should I Buy It?” operates in Local Mode by default without requiring bank logins, Plaid integrations, or credit card connections. All math runs directly in your browser. If you choose to sign in, your profile is stored securely using Supabase Row Level Security.
Financial planners generally recommend maintaining at least 1 to 3 months of basic living expenses in liquid cash. In our simulator, you define your personal comfort floor (e.g. $1,000 to $5,000) so the algorithm prevents impulse purchases from compromising your security.