Test scenarios for term debt, fees, and balloons. Review lender yield under flexible repayment structures. Use clean outputs, exports, and schedule details for planning.
| Item | Example Value |
|---|---|
| Initial Draw | $250,000 |
| Annual Interest Rate | 14.00% |
| Term | 24 months |
| Grace Period | 6 months |
| Upfront Fee | 2.00% |
| Exit Fee | 1.50% |
| Additional Draws | Month 4: $50,000, Month 9: $25,000 |
| Extra Repayments | Month 12: $10,000, Month 18: $15,000 |
| Warrant Value at Exit | $4,000 |
1) Monthly interest
Monthly Interest = Outstanding Balance × (Annual Rate ÷ 12)
2) Monthly lender cash flow
Lender Cash Flow = Interest + Fees + Principal Repaid + Warrant Value − New Draws
3) Initial cash flow
Month 0 Cash Flow = −Initial Draw + Upfront Fee − Lender Closing Cost
4) IRR rule
The calculator solves for the monthly discount rate that makes the net present value of all lender cash flows equal to zero.
5) Annualized IRR
Annualized IRR = (1 + Monthly IRR)12 − 1
This model is lender focused. It treats funded loan amounts as negative cash flows. Interest, fees, principal repayments, exit fees, and warrant value are treated as positive cash flows.
SaaS debt returns are shaped by more than coupon rate. Lenders often price deals with upfront fees, monitoring charges, exit fees, and warrant coverage. Draw timing also changes returns. A simple yield view can miss those effects. Internal rate of return gives a fuller answer because it values both timing and size of each cash movement.
This calculator estimates lender-side IRR for a SaaS debt structure. It starts with the initial draw. It then layers in extra funded amounts, monthly interest, recurring fees, principal amortization, optional prepayments, a final balloon, and a warrant value at maturity. That creates a practical monthly cash flow stream. The model then solves for the monthly IRR and converts it into an annualized return.
A higher IRR usually means stronger return efficiency. Still, context matters. A short deal with heavy fees may show a high IRR but lower absolute dollars. A longer structure may show a lower IRR while generating more total interest income. You should review IRR with net profit, MOIC, payback month, and the monthly schedule. Those extra views help compare scenarios with different funding profiles and exit assumptions.
This tool is helpful when you want to test repayment structures quickly. You can compare annuity versus straight-line amortization. You can test more aggressive prepayments. You can change the final balloon. You can also estimate how extra draws affect return quality. That is valuable in venture debt and revenue-linked lending where deployment timing often changes as the borrower grows.
It estimates lender IRR for a SaaS debt deal. It includes timing of funding, repayments, fees, and warrant value. That makes it stronger than a flat yield estimate.
This page is lender focused. Loan advances are treated as negative cash flows. Interest, fees, and repayments are treated as positive cash flows.
Coupon only measures stated interest. IRR also captures upfront fees, exit fees, extra draws, prepayments, final balloon timing, and warrant value.
Use annuity when you want more level debt service after the grace period. It is useful for comparing smoother repayment patterns against lender return.
Additional draws create new negative lender cash flows in the selected months. They usually change both timing and total return.
SaaS debt deals sometimes include warrants or equity-linked value. Adding that exit value gives a broader picture of total lender economics.
Yes. After calculation, you can download the schedule as CSV or generate a PDF summary with the schedule table.
IRR needs both negative and positive cash flows. If the inputs do not create a solvable pattern, the calculator shows that the result is unavailable.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.