予算を立てることは第一歩に過ぎません。維持し、調整することが本当の課題です。これらのプロンプトは、月次レビューの実施、支出追跡システムの構築、予算が崩れた時の修正を手助けします。ChatGPT、Gemini、Claudeでテスト済みなので、各管理課題に最適なモデルがわかります。
| やりたいこと | 最適な用途 |
|---|---|
| 月次の予算レビューを実施する | ChatGPT |
| 支出追跡システムを設定する | Gemini |
| 壊れたまたは放棄された予算を修復する | Claude |
| 季節的な予算の変化に対応する | Gemini |
| サブスクリプションを監査し最適化する | ChatGPT |
| キャッシュフローのタイミングを視覚化し最適化する | Claude |
プロンプト
月次の予算レビューを実施する
Here's my budget vs. actual spending this month: Budgeted amounts by category: [list categories with budgeted amounts] Actual spending by category: [list categories with actual amounts] Income received: [amount] Savings contributed: [amount] Unexpected expenses: [list] Conduct a monthly budget review: 1. Calculate the variance (over/under) for each category with percentages 2. Identify the 3 biggest overspending categories and likely causes 3. Highlight categories where I underspent and whether that money should be reallocated 4. Suggest specific adjustments for next month's budget based on this month's patterns 5. Rate my overall budget adherence on a 1-10 scale with justification 6. Set 2 concrete financial goals for next month based on this review
最適な用途: CHATGPT
ChatGPTは最もきれいな差異テーブルを生成し、パーセンテージの差を即座に計算します。月次レビューフォーマットはスキャンしやすく、月ごとの比較が容易です。
テスト済み Feb 15, 2026
プロのコツ
月を通じてスマホに現金購入と不規則な支出のメモを残しましょう。追跡しない支出が通常、予算を壊す支出です。
支出追跡システムを設定する
I need a system to track my daily spending. My budget categories: [list your categories] Tools I currently use: [spreadsheet/app/pen and paper] Biggest tracking challenge: [what makes me stop tracking] How much time I'll spend tracking daily: [minutes] Design a spending tracking system: 1. Create a simple daily logging template I can fill out in under [X] minutes 2. Set up weekly check-in prompts that take 5 minutes 3. Build category codes or shortcuts for faster logging 4. Design alerts or thresholds for each category (e.g., "flag when dining exceeds $X") 5. Include a system for handling shared expenses and reimbursements 6. Suggest the simplest tool/app that matches my tracking style
最適な用途: GEMINI
Geminiは現実的な時間見積もりを含む最も実用的なトラッキングシステムを設計します。Google Sheetsテンプレートとの統合が良く、すぐに使い始められます。
テスト済み Feb 15, 2026
プロのコツ
毎日同じ時間に記録しましょう。夕食後がほとんどの人に合います。既存のルーティンにトラッキングの習慣をスタッキングすることが、定着させる唯一の方法です。
壊れたまたは放棄された予算を修復する
My budget has fallen apart and I need to get back on track. Original budget: [paste or describe your planned budget] What actually happened: [describe where things went off track] Current financial state: [account balances, upcoming bills] How long since I last followed my budget: [timeframe] What triggered the budget breakdown: [unexpected expense, life change, motivation loss] Help me rescue my budget: 1. Assess the damage — where do I actually stand financially right now 2. Create a "triage budget" for the next 2 weeks to stabilize 3. Identify which parts of my original budget were unrealistic 4. Rebuild a simpler budget with fewer categories (max 8) 5. Design a "restart ritual" I can do this weekend to reset 6. Build in circuit breakers — early warning signs that the budget is slipping again
最適な用途: CLAUDE
Claudeは予算の失敗について批判的でなく、実用的な復帰ステップに焦点を当てます。元の予算の非現実的な期待を、気分を悪くさせずに特定します。
テスト済み Feb 15, 2026
プロのコツ
数ヶ月の使いすぎを1ヶ月で「取り戻そう」としないでください。2〜3ヶ月にわたる段階的な軌道修正の方が、クラッシュダイエット予算よりも持続可能です。
季節的な予算の変化に対応する
I need to adjust my budget for seasonal changes. Current monthly budget: [list categories and amounts] Upcoming season: [holiday season / summer / back-to-school / tax season] Known upcoming expenses: [list with estimates] Historical spending spikes: [what I overspent on last year during this period] Income changes: [any seasonal income variations] Create a seasonal budget adjustment plan: 1. List every seasonal expense I should expect with estimated amounts 2. Create a monthly "sinking fund" schedule to save for these expenses in advance 3. Identify which regular budget categories to temporarily adjust and by how much 4. Design a spending plan for gift-giving or holiday expenses with per-person limits 5. Build a post-season recovery budget to get back to baseline 6. Calculate the total seasonal cost impact and compare to my annual budget
最適な用途: GEMINI
Geminiは複数月にわたる計画と時間をまたいだ計算を非常にうまく処理します。どのスプレッドシートでも簡単に設定できる詳細な積立基金スケジュールを作成します。
テスト済み Feb 15, 2026
プロのコツ
ホリデー予算の積立基金を1月から始めましょう。ホリデーのコストを11ヶ月に分散すると、月約5,000〜10,000円の積立で済み、12月のクレジットカードの壊滅的な請求を避けられます。
サブスクリプションを監査し最適化する
Here are all my current subscriptions and memberships: [List each with: name, monthly/annual cost, how often I actually use it, what I use it for] My monthly subscription budget limit: [amount] Conduct a subscription audit: 1. Calculate my total monthly subscription cost 2. Rank each subscription by cost-per-use (actual usage, not intended usage) 3. Identify subscriptions I'm paying for but rarely using (less than 2x per month) 4. Suggest cheaper alternatives for expensive subscriptions 5. Flag overlapping subscriptions that do similar things 6. Create a "keep, downgrade, cancel" recommendation with projected monthly savings
最適な用途: CHATGPT
ChatGPTはほとんどの主要サブスクリプションサービスの価格帯を知っており、機能比較を含む具体的な安価な代替案を提案できます。他のモデルが見逃す重複サービスを捕捉します。
テスト済み Feb 15, 2026
プロのコツ
過去3ヶ月のクレジットカードと銀行の明細を確認しましょう。ほとんどの人は完全に忘れていた2〜3個のサブスクリプションを持っています。自動更新された無料トライアルなど。
キャッシュフローのタイミングを視覚化し最適化する
I need to understand and optimize my cash flow timing. Pay schedule: [weekly/biweekly/monthly, specific dates] Major bills and due dates: [list each bill with due date and amount] Variable income sources: [list any additional income with timing] Current pain point: [running low before payday / bills clustered together / etc.] Optimize my cash flow: 1. Map out a monthly cash flow timeline showing income in and expenses out by date 2. Identify "danger zones" where my account balance dips lowest 3. Suggest which bill due dates to change and to what dates (with how to request the change) 4. Create a pay-period budget that splits expenses across paychecks 5. Design a buffer system to prevent overdrafts 6. Calculate the minimum checking account balance I should maintain as a float
最適な用途: CLAUDE
Claudeはタイムラインベースの財務計画に優れ、キャッシュフローのストレスの心理も理解しています。他のモデルが見落とす請求日の変更のような実用的な解決策を提供します。
テスト済み Feb 15, 2026
プロのコツ
ほとんどの請求先は電話で支払日を変更してくれます。月を通じて請求を均等に分散させると、予算管理を不可能に感じさせる収入と支出の波のサイクルがなくなります。
実際のテストに基づいています — 推測ではありません。 テスト方法を見る
Gemini
Best for multi-month planning, sinking fund calculations, and creating tracking systems that integrate with Google Workspace. Strong at seasonal budget adjustments.
結果元: Gemini 2.0 Flash · テスト済み Feb 15, 2026ChatGPT
Excels at variance analysis, subscription audits, and knowing specific pricing tiers for major services. Produces the cleanest comparison tables for monthly reviews.
結果元: GPT-4o · テスト済み Feb 15, 2026Claude
Strongest for budget recovery, cash flow psychology, and non-judgmental financial guidance. Best at identifying unrealistic budget expectations and building sustainable systems.
結果元: Claude 3.5 Sonnet · テスト済み Feb 15, 2026Grok
Cuts straight to the wasteful spending without diplomatic padding. Identifies expenses to eliminate with blunt honesty and provides direct action steps for tightening your budget immediately. Less tactful when shared finances and partner dynamics are involved. Disclaimer: These prompts are for informational purposes only and do not constitute financial advice.
結果元: Grok 2 · テスト済み Feb 15, 2026The best budget is the one you actually check. A complex budget you ignore is worse than a simple one you review weekly. Ask AI to simplify your categories to 8 or fewer if you find yourself avoiding your budget. Disclaimer: These prompts are for informational purposes only and do not constitute financial advice.
Automate the boring parts so you can focus on decisions. Use automatic transfers for savings and bill payments so your budget runs itself. Your energy should go toward the discretionary spending decisions, not remembering to pay the electric bill.
Budget drift is normal — quarterly resets prevent it from becoming a problem. Every 3 months, ask AI to review your budget against actual spending and suggest a refresh. Budgets that never get updated become increasingly disconnected from reality.