Founder's Accounting
foundersaccounting.com
Free Financial Tools
Free Calculator Suite
Know Your Numbers.
Make Better Decisions.
Four free calculators built for founders. Enter your numbers and get an instant, honest picture of your financial health — no spreadsheet needed.

Profit & Loss

Enter totals for the period selected. Switching periods auto-converts flow figures.

1
Revenue & Costs
Total Revenue
$
Cost of Goods Sold (COGS)
$
G&A Expense
$
Other Operating Expenses
$
2
Growth & Acquisition
Marketing Spend
$
Ad spend, campaigns, content
Sales Expense
$
New Customers Acquired
Total Active Customers
Customer Churn Rate
%
% lost for selected period
Credit Sales (optional)
$
Leave blank to use Total Revenue for DSO
3
Balance Sheet
Current Assets
Cash & Equivalents
$
Accounts Receivable (AR)
$
Inventory
$
Other Current Assets
$
Current Liabilities
Accounts Payable (AP)
$
Short-Term Debt
$
Other Current Liabilities
$
Total Operating Expenses
N/A
Monthly Expense Rate
N/A
Your Financial Health Dashboard
Cash RunwayEnter numbers
Overall Health — Enter your numbers above

Fill in the P&L and balance sheet. Every metric updates as you type and rolls into one overall grade.

    Cash Runway
    N/A
    N/A
    Months of survival with no new revenue.
    Working Capital
    N/A
    N/A
    Current assets minus current liabilities.
    Current Ratio
    N/A
    N/A
    Current assets ÷ current liabilities.
    DSO
    N/A
    N/A
    Days Sales Outstanding — how fast you collect.
    CAC
    N/A
    Informational
    (Marketing + Sales) ÷ new customers.
    MER
    N/A
    N/A
    Revenue per $1 of marketing spend.
    LTV
    N/A
    Informational
    Estimated lifetime gross profit per customer.
    LTV : CAC
    N/A
    N/A
    Lifetime value per acquisition dollar.
    💰
    Your Business Numbers
    Cash on Hand
    $
    Current balance in your operating account
    Monthly Payroll
    $
    Total payroll including your salary
    Monthly Rent / Office
    $
    Software & Subscriptions
    $
    Contractors / Freelancers
    $
    Other Monthly Expenses
    $
    Your Cash Runway
    —
    Days of Runway
    —
    Months of Runway
    —
    Monthly Burn Rate
    What Your Number Means
    180+ days
    Strong. Room to grow, hire, and take calculated risks.
    90–180 days
    Healthy. Keep building reserves.
    30–90 days
    Caution. One slow month creates real pressure.
    Under 30 days
    Danger. Needs immediate attention.
    ⚠️
    Most ecommerce founders optimise for ROAS and ignore payback period. If customers churn before breaking even, you're funding growth with money you'll never see again.
    🛒
    Your Ecommerce Numbers
    Customer Acquisition Cost (CAC)
    $
    Total ad spend ÷ new customers acquired
    Average Order Value (AOV)
    $
    Cost of Goods per Order
    $
    Fulfillment + Shipping
    $
    Payment Processing Fee
    %
    Stripe / Shopify ~2.9%
    Other Variable Costs
    $
    How Contribution Margin is Calculated
    Contribution Margin = AOV − COGS − Shipping − Processing Fee − Other Variable Costs
    Your Ad Spend Payback Period
    —
    Orders to Break Even
    —
    Contribution Margin / Order
    —
    Contribution Margin %
    Industry Benchmarks
    1–2 orders
    Excellent unit economics. Scale with confidence.
    2–3 orders
    Healthy. Watch retention and repeat purchase rate.
    3–5 orders
    Risky. Only safe if LTV supports it.
    5+ orders
    Danger. You may be buying customers at a structural loss.
    Reduce CAC
    Improve targeting, test new creatives, increase organic. Every dollar less in CAC reduces payback period.
    Improve Contribution Margin
    Negotiate supplier costs, reduce shipping, or raise AOV through bundles and upsells.
    Increase Repeat Rate
    Email flows, subscriptions, loyalty programs. Faster reorders = faster break even.
    Know Your LTV
    If LTV supports a long payback — that's strategic. If it doesn't — your ad spend is a cash drain.
    ⚖️
    Your Work In Progress (WIP) Details
    Firm Basics
    Average Billing Rate (per hour)
    $
    Blended hourly rate across all timekeepers
    Total Unbilled Hours
    hrs
    Pull from your WIP report — all matters
    WIP by Age — Hours in Each Bucket
    Current
    95% recovery
    hrs
    0–30 days old
    30–60 Days
    80% recovery
    hrs
    Bill within 2 weeks
    60–90 Days
    60% recovery
    hrs
    Flag now
    90+ Days
    Below 50% recovery
    hrs
    Bill or write off now
    Outstanding Accounts Receivable
    Total Billed But Unpaid (AR)
    $
    AR Over 90 Days Old
    $
    Your Year-End WIP Exposure
    —
    Total WIP Value
    —
    Estimated Bad Debt Risk
    —
    Expected Recovery
    WIP Breakdown by Age
    AgeHoursWIP ValueRecovery %ExpectedBad DebtAction
    Year-End Billing Cleanup Checklist
    1
    Bill all current WIP immediately — do not carry unbilled work into the new yearTarget: zero unbilled hours on matters where work is complete
    2
    Flag all stale unbilled time (30–60 days) for partner review this weekDecision: bill now, write off, or document why it's being held
    3
    Send final statements to all slow-paying clients before December 31A December invoice gives you Q1 leverage — a January invoice gets ignored
    4
    Write off or bill all 90+ day WIP before year-end closeWIP over 90 days recovers below 50% — carrying it inflates your revenue picture
    5
    Pull your AR aging report and call every client with a balance over 60 daysA personal call before year-end collects 3x more than a statement alone
    © 2026 Founder's Accounting · foundersaccounting.com
    Real CPAs. Real Strategy. Not Just Software.
    This calculator suite is provided for general informational purposes only and is not a substitute for professional financial or accounting advice. Grading bands reflect commonly cited general benchmarks and may not fit every industry or business model. Please consult a qualified professional before making financial decisions.