Post-Retirement Year One Cash Flow Planner

4.30

Derivation Chain

Step 1 Retirement Pension optimization

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Step 2 Cash flow management during post-retirement income gap

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Step 3 Pre-simulating month-by-month cash inflows and outflows for the first 12 months after retirement

Problem

A 57-year-old soon-to-retire worker cannot predict their cash flow for the first 12 months after retirement. After receiving a lump-sum severance, they face health Insurance premium conversion from employer-based to regional ($112→$337/month / 15만→45만 원), voluntary National Pension continuation ($150/month / 20만 원), unemployment benefits ($1,200/month × 6 months / 160만 원), and children's tuition — all overlapping in ways that can lead to 'running out of cash at month 6' without warning. Even professional Retirement planning consultations ($750+ / 100만 원+) rarely produce a month-by-month cash flow table.

Solution

Enter your retirement date, severance amount, expected unemployment benefits, and fixed expenses (health Insurance, National Pension, tuition, living costs), and the service automatically generates a 12-month post-retirement cash inflow/outflow timeline. Deficit months are highlighted in red, and three scenarios to resolve the deficit (extended unemployment benefits, part-time income, installment severance payout) are compared.

Target: Ages 54–60, 6 months to 2 years before retirement, with spouse + 1–2 college-aged children, severance of $75,000+ (1억 원+)

Revenue Model: Free basic 12-month cash flow table. Per Transaction PDF Report at $5.90 (7,900원) for scenario comparison + optimal severance payout method analysis. Matching fees from Retirement planning expert referrals.

Ecosystem Role: Infrastructure

MVP Estimate: 2_weeks

NUMR-V Scores

N Novelty

3.0/5

U Urgency

5.0/5

M Market

4.0/5

R Realizability

5.0/5

V Validation

4.0/5

NUMR-V Scoring System

N Novelty	1-5	How uncommon the service is in market context.
U Urgency	1-5	How urgently users need this problem solved now.
M Market	1-5	Market size and growth potential from proxy indicators.
R Realizability	1-5	Buildability for a small team with realistic constraints.
V Validation	1-5	Validation signal quality from competition and demand data.

SaaS N=.15 U=.20 M=.15 R=.30 V=.20 Senior N=.25 U=.25 M=.05 R=.30 V=.15

Feasibility (65%)

Tech Complexity

24.0/40

Data Availability

20.8/25

MVP Timeline

20.0/20

API Bonus

0.0/15

Feasibility Breakdown

Tech Complexity	/ 40	Difficulty of core implementation stack.
Data Availability	/ 25	Practical availability and cost of required data.
MVP Timeline	/ 20	Expected time to ship a usable MVP.
API Bonus	/ 15	Bonus for viable public API leverage.

Market Validation (61/100)

Competition

8.0/20

Market Demand

6.2/20

Timing

16.0/20

Revenue Signals

10.5/15

Pick-Axe Fit

12.0/15

Solo Buildability

8.0/10

Validation Breakdown

Competition	/ 20	Signal quality from competitor landscape.
Market Demand	/ 20	Demand proxies from search and mention patterns.
Timing	/ 20	Fit with current shifts in tech, behavior, and regulation.
Revenue Signals	/ 15	Reference evidence for monetization viability.
Pick-Axe Fit	/ 15	How well the concept serves participants in a trend.
Solo Buildability	/ 10	Practicality for lean-team implementation.

Technical Requirements

Frontend [medium] Backend [medium]

Dashboard