Before you commit to a debt payoff strategy, you should know exactly what it costs you. Not a rough estimate — the actual numbers. How much interest does your current approach cost over time? What happens if you throw an extra $200/month at your debt? What if you get a $2,000 tax refund and put it all toward the highest-rate balance?

ZeroMark Forecast answers those questions before you make a single extra payment. Model the scenarios, pick the plan, then execute it.

How It Works

Enter your debts — creditor, balance, interest rate, minimum payment. ZeroMark Forecast projects your debt-free date and total interest cost under your current payment plan. Then model alternatives: increase your monthly payment by any amount, apply a one-time lump sum, or change the payoff order. Each scenario updates your projected debt-free date and total interest saved instantly.

The payoff calendar marks your projected debt-free date visually so it's always front and center — a concrete target, not an abstract number.

Enter your debts — balance, rate, minimum payment
See your current debt-free date and total interest cost
Model extra payment scenarios — monthly increases, lump sums, payoff order changes
Compare scenarios side by side and choose the plan that fits your budget
Lock in your strategy and start executing

Who It's For

ZeroMark Forecast is built for analytical decision-makers who want to run the numbers before committing to a payoff strategy. It's the right fit if you:

Want to model multiple "what if" scenarios before choosing a payoff approach
Are deciding how much extra to pay each month and want to see the impact of different amounts
Have a windfall (tax refund, bonus, side income) and want to know the best place to apply it
Prefer to see the full financial picture before making a commitment
Want a forecasting tool, not just a tracker

If you're ready to execute and want month-by-month progress tracking, Paydown Compass is the better fit. ZeroMark is for the planning phase.

What's Included

Debt Input Sheet — enter all debts with balance, APR, and minimum payment
Payoff Forecast — projected debt-free date and total interest under your current plan
Scenario Modeler — model extra monthly payments, lump sums, and payoff order changes side by side
Interest Savings Calculator — exact interest saved for each scenario vs. minimum-only payments
Payoff Calendar — visual calendar marking your projected debt-free date
Monthly Trend Chart — balance reduction over time for each scenario

Instant digital download. After purchase, you'll receive a link to copy the Google Sheet directly to your Google Drive. No software to install, works on any device.

Frequently Asked Questions

What's the difference between ZeroMark and a debt tracker?
A tracker follows progress. ZeroMark models scenarios before you commit — use it to choose your strategy, then use Paydown Compass to execute it.

Can I model a one-time lump sum?
Yes. Enter any amount — tax refund, bonus, side income — and see exactly how it changes your debt-free date and total interest.

How many scenarios can I compare?
Multiple, side by side — different extra payments, payoff orders, and lump sums, each with resulting date and interest shown.

Does it support snowball and avalanche?
Yes — model both and see the exact interest difference for your specific debts.

Is this a subscription?
One-time purchase. Copy it to your Google Drive and own it forever. No fees, no account, no renewal.

ZeroMark Forecast – Debt Payoff Forecast Google Sheets