예산 및 지출decision

Can I Afford This?

Stop impulsive spending. Stress-test whether a purchase fits your budget without depleting emergency cash or derailing long-term wealth.

입력 변수

브라우저 내 연산

계산 결과 및 분석

계산 준비 완료 (0원)

Enter the purchase price and your monthly financial situation to evaluate affordability.

Affordability Verdict: Ready to Evaluate ($0)

Affordability Score100 / 100

10-Year Opportunity Cost$0If invested at 7% compound growth

Monthly Discretionary Buffer₩0

Cooling-Off PeriodReady

전략적 해석

핵심 인사이트 및 실행 방안

Evaluates real affordability based on your disposable monthly cash flow and emergency reserves.
Calculates the 10-year compound growth opportunity cost if invested instead.
Helps eliminate impulse spending with data-driven decision scoring.

섹션 1: 연산 메커니즘

이 계산의 원리 (알기 쉬운 설명)

True affordability is not simply whether your bank account has enough cash today. It checks three gates: (1) Does buying this compromise your 3-to-6 month emergency fund? (2) Are you carrying high-interest debt that demands this cash instead? (3) What is the true 10-year opportunity cost if this money compounded in an index fund at 7%?

섹션 2: 수식 및 수학적 가정

알고리즘 수식 및 수학적 근거

수학 공식:

R = f(X_1, X_2, \dots, X_n) \quad \text{subject to standard actuarial bounds}

모델의 기본 가정:

Assumes 7% historical annualized market return for opportunity cost comparison.
Assumes high-interest revolving credit cards (18-29% APR) are an urgent financial emergency.

섹션 3: 실생활 적용 사례

Comparative Impact Modeling

전략적 조정을 통해 재정 궤적이 어떻게 달라지는지 확인하세요:

전략 A

Baseline Minimum Strategy

Making scheduled minimum payments without additional principal allocation.

Outcome: Maximum lifetime interest accrual and delayed financial freedom.

전략 B (최적화)

Accelerated Decision Strategy

Allocating strategic monthly surplus directly to principal reduction.

Outcome: Significant interest reduction and exponential acceleration toward goals.

핵심 요점: Even modest monthly adjustments create substantial compound savings over multi-year horizons.

섹션 4: 한계 및 예외 조건

모델 한계 및 경계 조건

While this engine calculates standard actuarial and consumer finance metrics, real-world finance introduces nuances that no automated model can fully predict:

Assumes tax rates, inflation indices, and APR rates remain static across modeled projections.
Educational estimate; not a formal underwriting commitment from lending institutions.
Excludes localized municipal surtaxes, insurance rider surcharges, or variable-rate APR triggers.

자주 묻는 질문

자주 묻는 질문: Can I Afford This?

What is the 48-Hour Rule?

For any non-essential purchase over $100, wait 48 hours before purchasing. In over 60% of cases, the dopamine surge fades and you realize you did not actually need the item.

What is the difference between "Can I buy this?" and "Can I afford this?"

You can buy something if you have the cash or credit card limit available. You can AFFORD something only if purchasing it has zero negative impact on your emergency reserve, debt payoff, or future retirement trajectory.