Accountability Partner Tracker Calculator
Shared progress metrics for financial accountability.
About this calculator
Combined Remaining Debt and Total Paid Down are both simple sums of each person's own starting and current balances (lines 22-34) — payment amounts and interest rate never factor into either figure. Monthly Paydown Velocity divides combined dollars paid down by months elapsed (line 53); of the four starting/current balance inputs that feed it, Person 1 Starting Debt has the largest effect at this calculator's own defaults, simply because $20,000 is the largest of the four raw balance figures entered — the same proportional change to a bigger number produces a bigger dollar swing. Fairness Index compares each person's share of the combined paydown to their share of the combined starting debt, then scales to 100 (lines 40-49): a person who has paid down a larger fraction of the total progress than their fraction of the original combined debt reads above 100, not because they've necessarily paid more dollars, but because their share of the progress outpaces their share of the starting balance.
Momentum Score compares actual combined paydown to what your stated monthly payments alone would predict over the months elapsed, capped at 100 (lines 74-77) — at this calculator's own defaults, six months of $8,000 combined paydown against $900 combined monthly payments works out to nearly 50% ahead of that pace, so Momentum Score sits pinned at its 100 ceiling and won't move further until either the payment amounts, months elapsed, or reported progress change enough to bring the underlying ratio back under 100. On Track is just Momentum Score at or above 80 (line 80), so it inherits that same ceiling behavior. This calculator has no way to verify either partner's self-reported balances.
Financial Disclaimer
This calculator is for educational purposes only and does not constitute financial advice. Results are estimates based on the inputs provided. Consult a qualified financial advisor before making investment or financial planning decisions.
Inputs
Results
Combined progress (%)
22.9%
How to Use This Calculator
- Enter the starting debt and current debt balance for each accountability partner.
- Add each partner's monthly payment amount and the average interest rate across their debts.
- Input how many months you've been tracking together.
- Review Combined Progress %, Fairness Index, and Momentum Score to assess how the partnership is performing.
- Use Projected Months to Freedom as a shared goal and Monthly Velocity to celebrate consistent progress.
How the result changes with Person 1 starting debt ($)
| Person 1 starting debt ($) | Combined progress (%) |
|---|---|
| 10,000 | -8% |
| 15,000 | 10% |
| 30,000 | 40% |
| 50,000 | 58.5% |
What each input means
- Person 1 starting debt ($)
- Person 1's total debt at the start of the accountability partnership.
- Person 1 current debt ($)
- Person 1's current total debt balance.
- Person 1 monthly payment ($)
- Person 1's total monthly debt payments.
- Person 2 starting debt ($)
- Person 2's total debt at the start of the partnership.
- Person 2 current debt ($)
- Person 2's current total debt balance.
- Person 2 monthly payment ($)
- Person 2's total monthly debt payments.
- Avg interest rate (%)
- Weighted average interest rate across all debts.
- Months in partnership
- How many months you've been tracking together.
What each result means
- Combined progress (%)
- Percentage of combined starting debt that has been paid off.
- Total paid down ($)
- Combined dollars of debt eliminated since starting.
- Combined remaining debt ($)
- Total remaining debt across both partners.
- Person 1 progress (%)
- Person 1's individual debt reduction percentage.
- Person 2 progress (%)
- Person 2's individual debt reduction percentage.
- Contribution fairness index
- 100 = exactly proportional effort. <100 = Person 1 contributing less; >100 = contributing more relative to their share.
- Monthly paydown velocity ($)
- Average combined monthly debt reduction.
- Projected months to freedom
- Estimated months until fully debt-free at current payment rates. -1 if payments don't cover interest.
- Momentum score (0-100)
- How well actual paydown matches expected paydown from stated payments.
- On track (1=yes, 0=no)
- Whether the partnership is on track (momentum score >= 80).
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersPerson 1 starting debt ($) = 20000, Person 1 current debt ($) = 15000, Person 1 monthly payment ($) = 500, Person 2 starting debt ($) = 15000 = 8 input(s) provided
- Calculate Combined progressCombined progress = combinedStartingDebt > 022.9 = 22.9%
- Calculate Total paid downTotal paid down = paidDownPerson1 + paidDownPerson28000 = $8,000
- Calculate Combined remaining debtCombined remaining debt = currentDebtPerson1 + currentDebtPerson227000 = $27,000
Engine last updated . Checked against 3 independently-derived tests — how we verify calculators. Built by Paul Gunder, a software engineer, not a licensed financial, medical, or legal professional.
Frequently Asked Questions
Why is Momentum Score stuck at 100 even when I change some of the inputs?
Momentum Score is capped at 100 by design (line 76) whenever your actual combined paydown exceeds what your stated monthly payments alone would predict for the months elapsed. At this calculator's own defaults — $8,000 paid down against $900 combined monthly payments over 6 months — actual progress already runs nearly 50% ahead of that predicted pace, so the score is pinned at its ceiling and stays there until progress slows enough, or enough months pass, to bring the underlying ratio back under 100.
Does a Fairness Index above 100 mean Person 1 has paid more dollars than Person 2?
Not necessarily. Fairness Index compares each person's share of the combined paydown to their share of the combined starting debt (lines 40-49), not raw dollars. At this calculator's defaults, Person 1 has paid down a larger fraction of the total progress (62.5%) than their fraction of the original combined debt (57.1%), which is what pushes Fairness Index above 100 — it's measuring proportional contribution, not dollar totals.
Which starting balance matters most for Monthly Paydown Velocity?
Person 1 Starting Debt, at this calculator's own defaults, ahead of Person 1 Current Debt, Person 2 Starting Debt, or Person 2 Current Debt individually. All four feed Combined Paid Down through the same simple subtraction (starting minus current, line 22-23), so the input with the largest dollar value — $20,000 for Person 1's starting balance here — produces the largest swing for an equivalent percentage change.
Do the monthly payment amounts affect Combined Remaining Debt?
No. Combined Remaining Debt is just Person 1's current balance plus Person 2's current balance (line 33), reported directly from what you entered — it doesn't run any payoff simulation. Monthly Payment Person 1 and Monthly Payment Person 2 only affect Projected Months to Freedom, a forward-looking projection that's separate from the current-balance snapshot.
What happens if the partnership's payments don't cover the interest accruing?
Projected Months to Freedom returns -1 rather than a positive month count (line 69) whenever the combined monthly payment doesn't exceed the interest accruing on the combined current balance at the entered average rate. That -1 is a sentinel meaning "payments alone can't make progress," not a literal negative timeline — it signals the payment total needs to increase before a payoff date is achievable.
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