Sinking Fund Tracker

I want to set up a sinking fund system so I can save gradually for known future expenses instead of scrambling to cover them when they hit.

My monthly take-home income is approximately [MONTHLY_INCOME] and I currently have [AVAILABLE_MONTHLY_SAVINGS] per month that I can distribute across sinking funds after covering my regular bills and essentials.

The sinking fund categories I want to track are: [FUND_CATEGORIES] (for example car insurance, holiday gifts, vacation, home repairs, annual subscriptions, pet care, back-to-school, medical deductible, car registration, clothing replacement). If I am not sure which categories to include, suggest a starter set based on expenses that commonly surprise people throughout the year.

For each category, here are the target amounts and approximate due dates I already know: [TARGET_AMOUNTS_AND_DATES?] (for example car insurance $1,200 due in September, holiday gifts $600 due in December, vacation $2,000 by next June).

My current savings already set aside for any of these categories: [CURRENT_FUND_BALANCES?]

My biggest financial pain point with irregular expenses is [PAIN_POINT:select:I constantly raid my emergency fund for things that are not emergencies,large bills hit and I put them on a credit card,I forget about annual expenses until the bill arrives,I never save enough for holidays and gifts,I have too many goals and cannot figure out where to start].

My preferred way to manage money is [MANAGEMENT_STYLE:select:separate savings accounts for each fund,one savings account with a spreadsheet to track sub-balances,a budgeting app like YNAB or Goodbudget,cash envelopes or jars,whatever you recommend].

My income pattern is [INCOME_PATTERN:select:steady paycheck same amount every period,variable income that changes month to month,seasonal with busy and slow periods,freelance or irregular with unpredictable gaps].

Build a complete sinking fund tracker and plan for me. Start by listing every category with its target amount, deadline, and the exact monthly contribution required to fully fund it on time. Show the total monthly contribution needed across all funds and compare it to my available savings amount. If the total exceeds what I can afford, prioritize the funds by urgency and consequence of missing the deadline, then show me a realistic allocation that fits my budget with a clear explanation of which funds are fully covered, which are partially funded, and what the shortfall plan looks like. For any categories where I already have money saved, adjust the remaining monthly contribution downward. Include a simple month-by-month progress table I can use to check off contributions and watch balances grow. Suggest when and how to refill each fund once the expense is paid, so the cycle continues automatically into the next year. If my income is variable, provide a baseline contribution plan for lean months and a catch-up plan for months when extra money comes in.