Examples are hypothetical and use Mexican pesos (MXN). Replace them with your own figures. Calculations run in your browser and are neither sent nor saved.
Educational tool · MXN
Monthly budget
See what remains after expenses, debt payments and savings.
How it works and its assumptions
Margin = income − expenses − debt payments − savings. Do not count card purchases as both expenses and debt: classify each outflow once. No spending percentages are imposed.
Educational tool · MXN
Totalero calculator
Plan how much more to reserve for your statement payment.
How it works and its assumptions
Remaining due = maximum of zero and required payment minus credited payments. Still to reserve = maximum of zero and remaining due minus reserved money. Divide by periods. This does not calculate interest or verify bank dates. If your app already shows a remaining amount, use it and set credited payments to zero. Confirm credit before the due date.
Educational tool · MXN
Minimum vs. larger payment
Compare keeping today’s minimum fixed with a larger monthly payment. Actual minimums change; this is an approximation.
How it works and its assumptions
Each month: interest = balance × annual rate / 12; payment follows. No new purchases, fees, taxes or insurance. End-of-month payments and constant rate. Does not replicate regulatory minimums or an issuer’s daily calculation. Simulation limit: 600 months.
Educational tool · MXN
Single debt plan
Estimate repayment time with a constant monthly payment.
How it works and its assumptions
Monthly amortization: interest is added before deducting payment. The last payment is reduced to the remaining balance. Excludes taxes, fees and new purchases; does not replace a creditor’s repayment agreement. Maximum: 600 months.
Educational tool · MXN
Savings goal
Calculate monthly contributions without relying on returns.
How it works and its assumptions
Monthly contribution = maximum of zero and (goal − savings) / months. Assumes no return, fees or inflation. Check whether the contribution fits your budget.
Educational tool · MXN
Compound interest
Explore a constant assumption, not a market forecast.
How it works and its assumptions
Monthly rate = (1 + effective annual rate)^(1/12) − 1. Each month the balance receives the assumed return, then the contribution. Negative assumptions are allowed. Excludes inflation, taxes, fees and actual market fluctuations.
Sources and current terms
Administra explains how it works; the official source confirms today’s terms. Editorial review: October 3, 2026. Terms can change; links do not automatically update this text.
How we verify