Playbooks
The economics of ABF for originators (worked examples)
The economics of ABF for originators (worked examples)
Before you approach a capital provider, before you request a term sheet, before you engage counsel, you need to answer one question: does this work for my business? Not conceptually, but mathematically, at the actual terms available in the current market, with your actual portfolio yield and servicing costs.
This guide gives you the financial toolkit to answer that question. Everything is built around worked examples with real numbers.
Important: The headline spread is not your cost of capital. The gap between “we’re paying SOFR+250” and “our all-in cost is 13.5%” has surprised many originators who built business plans on the headline number. Model all six cost components before you sign anything.
Section 1: the cost of capital formula
The six components
All-in cost of capital for an ABF structure has six components. Most originators only think about the first two.
All-in cost = Advance rate cost + Equity hurdle cost + Fees (amortized)
+ Servicing overhead + Reporting/compliance overhead
+ Facility drag (unused fees, negative carry)Where:
- Advance rate cost = facility draw x (benchmark + spread)
- Equity hurdle cost = (1 - advance rate) x portfolio x equity return hurdle
- Fees = (origination fee + structuring fee + annual admin fees) amortized over expected facility life
- Servicing overhead = cost of servicing operations as a % of portfolio (your actual cost, not market rate)
- Reporting/compliance overhead = internal cost to manage reporting, compliance, and capital provider relationship
- Facility drag = unused fee on uncommitted but available capacity + negative carry during ramp-up
The formula applied
For a $100M warehouse at 80% advance, SOFR+250, with SOFR at 5.3%:
| Component | Calculation | Annual Cost |
|---|---|---|
| Debt cost on $80M | $80M x 7.8% | $6,240,000 |
| Equity cost on $20M at 20% hurdle | $20M x 20% | $4,000,000 |
| Origination fee 1%, amortized over 3 years | $1M / 3 | $333,000 |
| Annual admin + legal | — | $200,000 |
| Servicing overhead (150 bps on $100M) | $100M x 1.5% | $1,500,000 |
| Reporting/compliance overhead | — | $150,000 |
| Total annual cost | $12,423,000 | |
| All-in cost as % of portfolio | 12.42% |
Illustrative pricing. See pricing disclaimer.
Compare this to the 7.8% headline rate most originators would quote as their “cost of capital.”
The equity hurdle: the most-ignored input
What equity return are you requiring? Originators funded by venture capital or family office equity are implicitly requiring a 20–30% equity return. Originators with cheaper equity (retained earnings, patient family money) might use 10–15%. The equity hurdle matters enormously:
At 70% advance and a 20% equity hurdle, the equity cost alone is 6% on the portfolio, before any debt cost. This is why high equity return requirements and low advance rates are incompatible with attractive originator economics.
Note: Build your cost-of-capital model before approaching capital providers, not after receiving a term sheet. When you understand the economics in advance, you know which terms to push on (advance rate and spread matter most), which to concede (administrative fees are minor), and when a deal simply doesn’t work for your business model.
Section 2: worked example a — first warehouse ($25m–$50m facility)
Deal assumptions
| Parameter | Value |
|---|---|
| Portfolio size (fully ramped) | $40M |
| Facility commitment | $50M |
| Advance rate | 75% |
| Benchmark rate (SOFR) | 5.3% |
| Spread | +300 bps |
| All-in debt rate | 8.3% |
| Origination fee | 1.25% |
| Annual admin fee | $100K |
| Unused fee | 0.5% on undrawn |
| Facility term | 2 years |
| Originator equity hurdle | 20% |
| Servicing cost | 200 bps (first warehouse, in-house) |
| Reporting/compliance cost | $200K/year |
| Expected ramp-up period | 6 months |
| Asset yield (weighted average) | 16% |
Step-by-step cost calculation
Step 1: Debt Component
Drawn balance: $40M x 75% = $30M
Annual debt cost: $30M x 8.3% = $2,490,000
As % of $40M portfolio = 6.23%
Step 2: Equity Component
Equity required: $40M x 25% = $10M
Annual equity cost at 20% hurdle: $10M x 20% = $2,000,000
As % of $40M portfolio = 5.00%
Step 3: Fees (Annualized)
Origination fee: $50M x 1.25% = $625,000, amortized over 2 years = $312,500/year
Annual admin fee: $100,000
Unused fee: ($50M - $30M) x 0.5% = $100,000/year
Annualized fees = $512,500
As % of $40M portfolio = 1.28%
Step 4: Operating Costs
Servicing: $40M x 2.0% = $800,000/year
Reporting/compliance: $200,000/year
Total operating: $1,000,000/year
As % of $40M portfolio = 2.50%
Summary: total cost at full ramp
| Component | Annual $ | % of Portfolio |
|---|---|---|
| Debt cost | $2,490,000 | 6.23% |
| Equity cost | $2,000,000 | 5.00% |
| Fees (annualized) | $512,500 | 1.28% |
| Operating costs | $1,000,000 | 2.50% |
| Total | $6,002,500 | 15.01% |
What this means
For this business to work at a first warehouse, you need net yield on assets above 15%. If asset yield is 16%, the spread to cost of capital is 100 bps on a $40M portfolio, generating $400,000 of annual “profit” before platform overhead. That’s a thin margin.
The ramp-up problem
During the 6-month ramp from $0 to $40M in originations, you’re paying:
- Commitment fees on the full $50M regardless of utilization
- Full overhead costs without full portfolio income
- Equity deployed into the facility before it’s generating full yield
Estimated ramp-up carry cost: $350,000–$500,000 in excess costs during months 1–6.
Break-even from a standing start on a $50M warehouse: approximately 8–10 months before the economics turn positive.
Important: The ramp-up period is the most dangerous time for a first warehouse. You’ve committed to costs before you have the revenue to support them. Undercapitalized originators have failed during this window.
How to improve these economics
- Negotiate advance rate up from 75% to 80% (reduces equity requirement by $2M, saves ~$400K/year at 20% hurdle)
- Reduce equity hurdle by using cheaper equity sources
- Invest in servicing efficiency to bring servicing cost from 200 bps to 150 bps (saves $200K/year on a $40M portfolio)
- Grow the portfolio to $60M without upsizing the facility (fixed costs amortize over a larger base)
Section 3: worked example b — growth warehouse ($150m facility)
The same originator, three years later, with a track record and a larger business.
Deal assumptions
| Parameter | Value | Change from Example A |
|---|---|---|
| Portfolio size | $150M | 3.75x growth |
| Facility commitment | $200M | — |
| Advance rate | 82% | Up 7 points |
| Benchmark rate (SOFR) | 5.3% | Unchanged |
| Spread | +225 bps | Down 75 bps |
| All-in debt rate | 7.55% | Down 75 bps |
| Origination fee | 0.75% | Down 50 bps |
| Annual admin fee | $250K | Up (complexity) |
| Unused fee | 0.375% | Down |
| Originator equity hurdle | 20% | Unchanged |
| Servicing cost | 150 bps | Down (scale) |
| Reporting/compliance cost | $400K/year | Up (complexity) |
| Asset yield | 16% | Unchanged |
Cost calculation
| Component | Annual $ | % of Portfolio |
|---|---|---|
| Debt cost ($150M x 82% x 7.55%) | $9,288,300 | 6.19% |
| Equity cost ($150M x 18% x 20%) | $5,400,000 | 3.60% |
| Fees (annualized) | $950,000 | 0.63% |
| Operating costs | $2,650,000 | 1.77% |
| Total | $18,288,300 | 12.19% |
The scale effect
| Metric | $40M Portfolio | $150M Portfolio | Improvement |
|---|---|---|---|
| All-in cost | 15.01% | 12.19% | 282 bps |
| Spread over cost | ~100 bps | ~381 bps | 281 bps |
| Annual gross profit | $400K | $5,715,000 | 14x |
The economics improve dramatically at scale, driven by:
- Better advance rate (less equity required per dollar of assets)
- Lower spread (track record earns pricing improvement)
- Operating leverage (fixed costs amortize over a larger portfolio)
This is the core thesis for scaling an ABF originator: first-facility economics are marginal; scaled economics are attractive.
Section 4: worked example c — first term ABS ($200m deal)
When term ABS makes sense
Term ABS makes sense when:
- Portfolio size justifies the $500K–$1.5M in deal costs
- You want to lock in long-term funding at a fixed spread
- You have excess capacity in your warehouse and want to “term it out”
- Warehouse advance rate is limiting your growth and term ABS will free up warehouse capacity
It does not make sense when:
- Your portfolio is under $150M (deal costs are too large relative to savings)
- Your asset pool isn’t clean enough for securitization eligibility criteria
- You can’t sustain the ongoing compliance and reporting burden
Deal structure assumptions
| Parameter | Value |
|---|---|
| Deal size | $200M |
| Senior tranche (AAA) | $160M (80%) at SOFR+130 |
| Mezzanine tranche (BBB) | $18M (9%) at SOFR+275 |
| Subordinate tranche (BB) | $10M (5%) — retained |
| Equity/first loss | $12M (6%) — retained |
| Senior tranche benchmark | SOFR 5.3% |
| Weighted average spread on rated notes | ~165 bps (blended) |
| All-in cost on rated notes | ~6.95% |
| Upfront costs (legal, rating, underwriting) | $1,200,000 |
| Ongoing costs (surveillance, servicing, trustee) | $400,000/year |
| Expected deal WAL | 2.0 years |
Step 1: weighted average cost on rated notes ($178m)
| Tranche | Size | Rate | Annual Cost |
|---|---|---|---|
| AAA ($160M) | 80% | 6.60% | $10,560,000 |
| BBB ($18M) | 9% | 8.05% | $1,449,000 |
| Total rated | 89% | ~6.75% | $12,009,000 |
Illustrative pricing. See pricing disclaimer.
Step 2: cost of retained tranches ($22m)
Retained subordinate tranche and equity: $22M at originator’s 20% equity hurdle = $4,400,000/year
Step 3: upfront and ongoing costs
Upfront $1.2M amortized over 2-year WAL = $600,000/year
Ongoing admin/surveillance = $400,000/year
Total cost component = $1,000,000/year
Summary: term ABS all-in cost
| Component | Annual $ | % of $200M |
|---|---|---|
| Rated notes cost | $12,009,000 | 6.00% |
| Retained tranche cost | $4,400,000 | 2.20% |
| Upfront + ongoing costs | $1,000,000 | 0.50% |
| Servicing (150 bps) | $3,000,000 | 1.50% |
| Total | $20,409,000 | 10.20% |
Warehouse vs. term ABS comparison (at $200m portfolio)
| Metric | Warehouse | Term ABS |
|---|---|---|
| All-in cost | ~11.5% | ~10.2% |
| Annual savings | — | $2,600,000 |
| Advance rate | 82% | 94% (89% rated + 5% retained) |
| Flexibility | High (revolving) | Low (static pool) |
| Setup cost | $300K | $1,200,000 |
| Break-even over warehouse | — | ~6 months |
At $200M scale, term ABS saves approximately $2.6M per year in funding costs vs. the equivalent warehouse, with an effective advance rate improvement of 12 percentage points.
Section 5: ABF vs. alternative funding sources
For a $50M receivables portfolio:
| Funding Source | All-In Cost | Max Advance | Typical Timeline | Flexibility | Minimum Size |
|---|---|---|---|---|---|
| Equity (VC) | 25–35% hurdle | 0% (equity) | 3–6 months | High | N/A |
| Venture debt | 15–20% | 75–85% (on equity) | 4–8 weeks | Medium | $5M+ |
| Bank line (unsecured) | 8–12% | No collateral basis | 4–12 weeks | High | $10M+ |
| Forward flow (off-balance-sheet) | Spread embedded | 100% (sells assets) | 6–12 weeks | Low | $5M/month |
| Warehouse (private, first) | 13–16% | 75–80% | 14–22 weeks | Medium | $20M+ |
| Warehouse (bank, established) | 9–12% | 80–88% | 12–20 weeks | Medium | $50M+ |
| Term ABS (unrated) | 10–13% | 85–90% | 18–26 weeks | Low | $100M+ |
| Term ABS (rated) | 9–11% | 88–95% | 24–36 weeks | Very low | $150M+ |
Illustrative pricing. See pricing disclaimer.
Key tradeoffs
Forward flow looks attractive (100% of assets sold, no retained risk) but typically prices at a discount to par and removes all residual economics. The originator gives up the excess spread, which for a high-performing pool can be 3–5% of outstanding balance annually.
Venture debt is faster and simpler but is typically structured off the equity base, not the assets, so it doesn’t provide leverage against your portfolio. It solves a different problem.
Bank lines are the cheapest debt but are relationship-dependent, often without a specific collateral basis, and can be pulled quickly. They are not reliable as primary capital for an origination business at scale.
ABF warehouse is the primary working capital mechanism for most originators. The economics improve materially with scale, track record, and the right capital provider relationship.
Section 6: how economics change as you scale
The four scaling levers
1. Advance Rate Improvement
Typical advance rate trajectory for a consumer originator with clean performance:
| Stage | AUM | Advance Rate | Equity Required per $100 |
|---|---|---|---|
| First facility | $25–75M | 72–77% | $23–28 |
| Growth (1–2 year track record) | $75–200M | 77–83% | $17–23 |
| Established (3+ years) | $200M+ | 83–88% | $12–17 |
| Rated ABS issuer | $300M+ | 88–94% | $6–12 |
Illustrative pricing. See pricing disclaimer.
2. Spread Compression
Market norms for spread tightening with track record (consumer unsecured example):
| Track Record | Typical Spread Range | Example |
|---|---|---|
| First deal (no track record) | SOFR+275 to +350 | SOFR+325 |
| 12–18 months, clean performance | SOFR+225 to +275 | SOFR+250 |
| 2–3 years, stable vintage data | SOFR+175 to +225 | SOFR+200 |
| Repeat ABS issuer | SOFR+125 to +175 | SOFR+150 |
Illustrative pricing. See pricing disclaimer.
3. Fee Reduction
Origination fees decline with track record and deal size:
- First deal, under $50M: 1.0%–1.5%
- Repeat borrower, $50–150M: 0.5%–1.0%
- Established, $150M+: 0.25%–0.75%
4. Operating Leverage
Fixed costs (reporting, legal, compliance overhead) grow slowly while the portfolio grows quickly. At $50M, fixed overhead might be 200 bps. At $200M, the same infrastructure supports the portfolio at 50 bps.
The all-in cost curve
Illustrative data points:
- $50M portfolio: ~14–16% all-in
- $150M portfolio: ~11–13% all-in
- $300M portfolio: ~9–11% all-in
- $500M+ portfolio (rated ABS): ~8–10% all-in
The economics improve dramatically at scale. This is the core thesis for building an ABF origination platform: survive the first facility, prove your performance data, and the economics get meaningfully better at each stage.
Section 7: the residual — excess spread, servicing income, and business model design
What is excess spread?
Excess spread is the net cash flow the originator/servicer captures after all deal expenses are paid. In a warehouse:
Excess spread = Asset yield
- (Debt cost + Servicing fee + Trustee/admin fees + Credit losses + Other)Example: $100M pool, 16% weighted average yield
| Item | Cost as % of Portfolio |
|---|---|
| Debt cost: 7.8% on $80M | 6.24% |
| Net credit losses | 3.00% |
| Servicing fee | 1.50% |
| Admin/trustee | 0.30% |
| Total expenses | 11.04% |
| Excess spread | 4.96% |
Illustrative pricing. See pricing disclaimer.
That 4.96% excess spread on a $100M pool is $4.96M per year. It is the originator’s residual and the primary economic benefit of retaining the equity/first loss piece rather than selling assets.
Servicing income: separate from excess spread
If you retain servicing, you earn a servicing fee regardless of the excess spread. For a $100M portfolio at 150 bps servicing fee, that’s $1.5M/year, earned even in a stress scenario where excess spread is trapped.
The market rate for third-party servicing is typically 50–150 bps, depending on asset class. The economic benefit of retaining servicing is the spread between your actual cost to service and the market rate for third-party servicing.
The three components of originator economics
Most originators think about the first and ignore the second and third:
- Origination income — points charged at origination, if any
- Servicing income — ongoing fee, if you retain servicing
- Residual/excess spread — the NPV of cash flows above deal expenses
At scale, #3 is often the largest component.
Illustrative NPV of the residual on a $100M pool with 4.96% excess spread, 2-year average life, 20% discount rate:
- Annual excess spread: $4,960,000
- NPV at 20% over 2 years: ~$7.3M
- Stated as % of portfolio: 7.3%
This residual NPV is why sophisticated originators fight hard for every basis point of excess spread and every optimization of the waterfall structure.
Section 8: the equity problem — how much capital do you actually need?
The full capital requirement
To run a $100M warehouse at 80% advance, you need $20M of equity in the SPV. But your total capital requirement is larger:
| Capital Requirement | Amount |
|---|---|
| Equity in SPV (20% retention) | $20M |
| Cash reserve (if required, 1–3%) | $1–3M |
| Operating capital (runway while facility ramps) | $2–5M |
| Ramp-up negative carry buffer | $0.5–1M |
| Closing costs (legal, setup, diligence) | $0.2–0.5M |
| Total capital required | ~$24–30M |
To run a $100M warehouse, you realistically need $24–30M of equity capital, not $20M.
The leverage math
At 80% advance, ABF provides 4:1 leverage on assets. But your equity capital supports not just the 20% retention but also the operating costs.
Realistic leverage on equity capital:
- $25M equity deployed supports a $100M portfolio = 4:1 gross
- Net of operating capital and reserves: ~3.5:1 effective leverage
Compare to alternatives:
- Equity-only (no ABF): 1:1
- Corporate debt (on originator): 2:1 (typical for fintech lenders)
- ABF warehouse: 3.5–4:1
- Term ABS: 5–6:1
Equity as a constraint on growth
For most originators, equity availability (not deal availability) is the binding constraint on growth. The question becomes: how do you structure your capital markets strategy to minimize equity consumption per dollar of assets originated?
Three strategies:
- Maximize advance rate (reduces equity per dollar of assets)
- Sell excess origination via forward flow or whole loan sale (reduces equity burden but gives up residual economics)
- Cherry-pick the best assets for ABF, sell the rest or retain on balance sheet (raises the effective advance rate on the ABF pool)
Section 9: sensitivity analysis and break-even points
What breaks the economics
Key sensitivities for an originator at $100M portfolio, 80% advance, SOFR+250:
| Variable | Current | Stress | Economics at Stress |
|---|---|---|---|
| Asset yield | 16% | 14% | All-in cost 12.4%, spread = 160 bps (still positive) |
| Advance rate | 80% | 75% | Equity cost rises ~1% of portfolio, net spread narrows ~100 bps |
| Spread | SOFR+250 | SOFR+350 | Debt cost rises ~1% of portfolio, net spread narrows ~80 bps |
| Credit losses | 3% | 5% | Residual falls from 4.96% to 2.96%, business still viable |
| Credit losses | 3% | 7% | Residual goes negative; facility trips triggers |
The break-even net loss rate
For the example above, calculate the loss rate at which your economics break even (zero residual):
- Asset yield: 16.00%
- Debt cost: 6.24% on portfolio
- Servicing: 1.50%
- Admin: 0.30%
- Total non-loss expense: 8.04%
- Break-even net loss rate: 7.96%
Any CDR below 7.96% on this portfolio produces positive economics. Most consumer originators target net losses of 3–6%. The cushion is meaningful but not unlimited. Build this table before you close.
Interest rate sensitivity
SOFR at 5.3% is meaningful. If SOFR falls to 3.5%:
- Debt cost on $80M drops from 7.8% to 6.0% = savings of $1.44M/year
- Asset yield on fixed-rate assets unchanged
- Net effect: significant improvement in economics
If SOFR rises to 7%:
- Debt cost on $80M rises from 7.8% to 9.0% = additional cost of $960K/year
- Fixed-rate assets don’t reprice: economics deteriorate
Does your asset yield float or fix? If your assets are fixed rate and your debt is floating, you have interest rate risk that should be hedged. Reference: Hedging and Interest Rate Mechanics.
Section 10: when ABF doesn’t work
Revenue-based and binary-outcome models
If your assets have binary outcomes (full repayment or loss, no steady amortization) — revenue-based financing, litigation finance, merchant cash advance — ABF structures have difficulty modeling the cash flow. Capital providers may structure against these assets, but the economics and advance rates will be more conservative.
Very short-duration assets
Assets with less than 90-day average life (trade receivables, factoring) are typically financed through ABCP conduits or revolving facilities with different economics than term warehouses. The cost structure differs (higher advance rates, lower spreads, but more operational complexity).
Very high credit risk pools
If your net loss rates run above 8–10%, the residual economics from a standard ABF structure are very thin or negative. You either need asset yields above 20% to support the structure, or the deal will be sized at such a low advance rate (60–65%) that the equity requirement makes the business model unattractive.
New asset classes without comparable data
Capital providers require comparable data to size the structure and set the advance rate. For a truly novel asset class with no public comparables, expect:
- First deal advance rates of 60–70% (vs. 75–85% for established asset classes)
- Higher spreads of 50–100 bps vs. comparable established asset classes
- Significant diligence time and cost
- Potential for deal failure if capital providers can’t get comfortable on the credit
The platform that can’t scale
ABF creates fixed costs (reporting, compliance, trustee, backup servicer) that require scale to justify. If your origination volume can’t reasonably scale to $50M+ within 24 months of closing a facility, the economics may not work on a per-dollar basis. Calculate your break-even portfolio size and confirm it’s within your realistic ceiling before pursuing this path.
Related topics
- Common Mistakes and How to Avoid Them — Originator Mistake 1.4 links directly to this topic
- Choosing the Right Structure — Use this topic’s comparison table alongside that decision framework
- The Waterfall — The excess spread analysis in Section 7 connects to waterfall mechanics
- Hedging and Interest Rate Mechanics — The interest rate sensitivity in Section 9 connects to hedging requirements
- Pricing and Relative Value — The capital provider’s perspective on pricing; complement to this topic’s originator perspective