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Future Commitment Lock

See future money and time already promised, including notice periods, lock dates and exit fees.

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Local calculations. Results are estimates, not professional advice.

Committed cost within horizon

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Month 1 is your first planning month. Costs and time are uniform within each active month; cancellation takes effect at the start of the stop month. Comparisons include only the horizon, and each cancels one item. Contract terms must be checked separately.

Formula

Use S = max(a,e,c+n). a is start month, e is earliest stop month, c is cancellation-request month, and n is notice months. If S is within the item's end month, charge active months before it and the exit fee in the stop month; otherwise the original end remains.

See future money and time already promised, including notice periods, lock dates and exit fees.

Worked example

First planning month (YYYY-MM)
2026-11
Planning horizon (months)
12
Monthly available income
5000
Monthly essential spending
3000
Monthly available hours
80
Other fixed monthly hours
20
Request cancellation at start of month number
3
Committed cost within horizon
4,400
Committed time within horizon
256 hours
Lowest monthly free money
1,550
Lowest monthly free time
32 hours
Largest net saving from one cancellation
870

Money and time commitments

  • Gym

    Cost/month: 100

    Hours/month: 12

    Start month: 1

    End month: 12

    Earliest stop month: 4

    Notice months: 1

    Exit fee: 30

  • Course

    Cost/month: 200

    Hours/month: 16

    Start month: 2

    End month: 8

    Earliest stop month: 5

    Notice months: 1

    Exit fee: 50

  • Machine

    Cost/month: 150

    Hours/month: 0

    Start month: 1

    End month: 12

    Earliest stop month: 12

    Notice months: 2

    Exit fee: 200

Scope and limitations

Month 1 is your first planning month. Costs and time are uniform within each active month; cancellation takes effect at the start of the stop month. Comparisons include only the horizon, and each cancels one item. Contract terms must be checked separately.

Inputs are checked for missing values and allowed ranges. A result outside the finite numeric range is not displayed. Rounding affects display, while the calculation uses the model’s numeric precision.

Check your units and assumptions before relying on a result. Changing a label does not convert a currency or physical unit.

Formula version: 342815c742bf · Example checked:

Methodology

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