Mini-Perms and Refinancing Risk: The Step-Ups Cost 3.9%, the Wall Is 64.8%

A soft mini-perm punishes a sponsor for not refinancing. The margin steps up, a cash sweep switches on, distributions stop. Those provisions get negotiated hard, and they should — they look punitive on the page.

On the worked facility below, they cost equity $4.5m, or 3.9% of the present value of its distribution stream. Meaningful, but considerably less than sponsors fear, because the penalties bite in year eight and equity discounts year eight heavily.

The number nobody negotiates is the other one. At the mini-perm date the facility still has $97.1m outstanding — 64.8% of the original amount — and it has to be refinanced in whatever market exists seven years from financial close.

The step-ups are an incentive. The wall is the risk. This post covers both, what makes a refinancing achievable, and how to stress a balance that nobody has committed to take out.

ℹ️ Note: All figures are labelled assumptions on a $150m facility at 6.5% amortising over fifteen years. Market terms vary; the relative magnitudes are the point.

What Is a Mini-Perm?

A facility whose economic life is deliberately shorter than the asset's, structured so that the debt is refinanced part way through. Lenders provide construction and early operating funding, then hand the asset to a different market — a longer bank facility, an institutional term loan, or a project bond — once it has an operating record.

Two forms exist and the difference is whether failure to refinance is a default.

Hard or Soft?

	Hard mini-perm	Soft mini-perm
Legal maturity	~7 years	Long-dated (15–20 years)
Failure to refinance	Event of default	Not a default
Mechanism	Legal obligation	Economic incentives
Incentives used	n/a	Margin step-ups, cash sweep, distribution ban
Risk introduced	A new default risk	Cost, not default

In a hard mini-perm the legal maturity is set typically around seven years, forcing the borrower to refinance before maturity or face default. If refinancing does not occur by the stated date, that is an event of default under the loan documentation.

In a soft mini-perm the maturity remains long-dated and failure to refinance is not a default. Instead the sponsor is incentivised because the project company becomes subject to increasingly onerous terms — increased margins, cash sweeps, and prohibitions on dividends and other distributions.

The trade-off is well understood. The hard structure gives lenders certainty that refinancing will happen at prevailing market rates and lets them price and amortise upfront fees over a short period. Its main disadvantage is the introduction of a new, possibly unnecessary, default risk for every party — funders, borrower, and in a PPP context the government.

Why Do Mini-Perms Exist?

Three reasons, and only the first is about the project.

Construction risk is priced differently from operating risk. A bank willing to take construction risk is a different institution, with different pricing, from one willing to hold a twenty-year operating asset. A mini-perm lets each do what it is good at, which genuinely lowers the blended cost.

Bank tenor appetite is limited. Many commercial banks will not hold eighteen-year paper at any price. A mini-perm is how those banks participate at all.

Fee economics. Upfront fees amortise over a shorter period, which improves the lender's return on a short-dated facility relative to the same fee on a long one.

The sponsor's side of the bargain is a bet: that a project with a two- or three-year operating record, an established production history and a proven counterparty will refinance on better terms than it could obtain at financial close. That bet is usually right, and the years when it is wrong are the years it matters.

What Do the Step-Ups Actually Cost?

Less than they look, and the reason is discounting.

Assumptions, labelled as such:

Facility                                       $150,000,000
Rate                                                   6.5%
Amortisation                                       15 years
CFADS                                           $30,000,000
Asset life                                         20 years
Equity discount rate                                    12%

Soft mini-perm penalties, from year 8:
   Margin step-up                            6.5% → 8.0%
   Cash sweep                                        100%
   Distributions                                  blocked

Equity NPV, refinanced as planned              = $115,430,150
Equity NPV, penalties bite                     = $110,932,152
                                                 ------------
Cost of not refinancing                        =   $4,497,998   (3.9%)

Under the penalty case the 100% sweep repays the facility in year 11 instead of year 15 — four years early, which is worth something back to equity and partly offsets the higher margin and the lost distributions.

This is a genuinely useful result because it runs against intuition. A clause bundle that reads as severe — a 150 basis point step-up, a full cash sweep and a distribution ban — is worth under four percent of equity value, because it operates from year eight onward and a 12% discount rate reduces year eight to 40 cents in the dollar.

The practical consequence is that a sponsor spending its negotiating capital on softening the ratchet is spending it on a four percent problem. There is a larger one in the same document.

One qualification, because the result is sensitive to a single input. The 3.9% figure assumes the penalties begin in year eight. Move the mini-perm date earlier and the cost rises sharply, because less discounting applies: a five-year mini-perm with the same penalty package is worth substantially more than a seven-year one, and a three-year structure — which appears in some construction-plus-ramp financings — is worth more again.

The general relationship is the same one the cash sweep post established from the other direction. The value of any penalty or acceleration provision is dominated by when it operates, not by how severe it is. A savage clause that starts in year ten is cheaper than a mild one that starts in year three, and a sponsor comparing two term sheets should look at the dates before the percentages.

That also means the hard mini-perm and the soft one converge in cost as the date moves earlier. At seven years the soft structure's penalties are a modest, discounted cost and the hard structure's default risk is the material difference between them. At three years, the soft penalties are expensive enough that the choice is much closer than the default-risk framing suggests.

The Wall

The balance that has to be refinanced.

Outstanding at end of year 7                    = $97,133,341
As a percentage of the original facility        =        64.8%

Nearly two thirds of the original debt, falling due into a credit market seven years away. That is the actual exposure, and unlike the step-ups it is not discounted away — a failure to refinance it is a liquidity event in the year it happens, not a spread applied to later cash flows.

Stress it properly. What the market will lend against the same $30m of CFADS depends on the coverage ratio it demands, the rate, and the tenor it offers:

Refinancing market	Capacity	vs the $97.1m wall
Benign: 1.30×, 7.5%, 10 years	$158,401,868	comfortable
Tighter: 1.45×, 8.5%, 8 years	$116,672,751	adequate
Stressed: 1.60×, 9.5%, 7 years	$92,805,229	$4.3m short

Even in the stressed case the shortfall is $4.3m — real, requiring an equity injection or a partial repayment, but not existential. That is the honest conclusion on this particular set of assumptions, and it is the sort of conclusion a stress test should produce rather than a binary.

Two things move the answer sharply, and they are the ones to test.

CFADS at the refinancing date, not at close. Everything in Series C applies: a project whose basis has widened, whose curtailment has risen or whose capacity accreditation has been cut will refinance against a smaller number than the one it was originally sized on. On these assumptions a 15% fall in CFADS moves the stressed case from a $4.3m shortfall to roughly $18m.

Contracted status at the refinancing date. A project refinancing with twelve years of PPA remaining faces a different market from one refinancing with three. That is the merchant tail analysis applied to a refinancing rather than an original financing, and it is why mini-perm dates and PPA expiry dates should never be allowed to converge.

What Makes a Refinancing Achievable?

Five things, in roughly the order lenders assess them.

An operating record. Two or three years of actual generation data resolves the single largest uncertainty in the original financing, and it is the reason the bet usually works.

Remaining contracted life. The single most important structural variable. Refinancing a project with a long contracted tail is ordinary; refinancing one about to go merchant is a different transaction.

Amortisation achieved. The wall is smaller the more the facility has amortised, which argues for a faster schedule during the mini-perm period even at a cost to distributions — the reverse of the argument the sweep post made about ongoing sweeps.

Market conditions. Uncontrollable, unforecastable, and the reason this is a risk rather than a plan.

Sponsor standing. A refinancing is a new credit decision, and a sponsor with a track record of completed refinancings and no distressed assets will find one where a stressed developer will not.

What Does the Refinancing Itself Cost?

Enough to matter, and it is routinely omitted from the model that assumes the refinancing happens.

The cost stack on a refinancing includes: arrangement fees on the new facility, typically a percentage of the amount; prepayment or break costs on the old one, which for a floating facility repaid on an interest payment date are usually nil and otherwise are not; hedge termination, which can be large and whose sign depends on where rates have moved since the swap was struck; and transaction costs — legal, technical, insurance and model audit — which are largely fixed and therefore proportionally heavier on a smaller refinancing.

On a $97m refinancing, one to two percent of arrangement fees plus fixed costs of a few million is a realistic total of three to five million dollars. That is a real reduction in the proceeds available to repay the old facility, and it means the new facility has to be sized slightly above the wall rather than exactly at it.

The hedge termination is the item most likely to surprise. A swap struck at financial close and running to year fifteen, terminated in year seven, settles at its mark-to-market. If rates have risen the sponsor receives a payment; if they have fallen it makes one, and the amount on a $97m notional with eight years remaining can run to several million dollars in either direction.

Two practical instructions follow. Size the new facility against the wall plus transaction costs plus a contingency for the hedge position, rather than against the bare balance. And check the prepayment provisions of the original facility at financial close, not at year seven — a make-whole or a hard non-call period in the original documents can make an early refinancing uneconomic regardless of market conditions.

Is a Project Bond the Answer?

Often, and it is the market the mini-perm structure is usually aiming at — but it imposes its own requirements.

A bond refinancing typically needs: a credit rating, which means an agency process and a structure a rating methodology recognises; scale, since issuance below a certain size struggles for investor attention and liquidity; an operating record, which the mini-perm period is designed to produce; and a structure investors will accept, which usually means simpler covenants and less flexibility than a bank facility.

What it offers in return is tenor and pricing. Institutional investors will hold twenty-year paper that commercial banks will not, and on a rated, contracted, operating asset the pricing can be materially better than the bank market.

The costs are real and different in kind. A bond has limited flexibility — amendments require a consent solicitation rather than a conversation with three banks. Prepayment is typically subject to a make-whole, which makes a subsequent refinancing expensive. And the negative carry of holding proceeds before they are applied, on a bond that funds in a single drawing rather than in instalments, is a cost the bank structure does not have.

The choice is therefore less about price than about what the asset needs next. A project that is complete, contracted and stable benefits from bond tenor and does not need bank flexibility. A project still making capital decisions — an expansion, a repowering, a co-located battery — will find the bond's rigidity expensive.

When Does a Refinancing Release Value?

This is the sponsor's actual motivation, and it is worth separating from the risk.

A successful refinancing does more than replace the old facility. A project with an operating record, established production data and a proven counterparty can usually support more debt than the original sizing allowed — the uncertainty that justified the original coverage ratio has partly resolved. The difference between the new facility and the old balance is a refinancing gain, released to equity as a distribution.

That is a legitimate and substantial source of return. It is also the reason mini-perms are sometimes preferred by sponsors rather than merely tolerated: the structure creates a scheduled opportunity to re-lever at a point where the asset is demonstrably better than it was at close.

Two constraints on it are worth knowing.

In PPP and concession structures, the gain is often shared. Refinancing gain sharing provisions require a defined proportion of the benefit to be paid to the public sector counterparty, on the reasoning that the improved terms arise partly from the concession itself. Where such a clause exists, the calculation methodology is worth reading carefully at financial close rather than at refinancing.

Lenders will resist a full re-lever. A refinancing that returns the gearing to its original level puts the new lender in the same position the old one was in, without the benefit of the amortisation that has occurred. Expect the new facility to be sized below the theoretical maximum, and expect that to be the negotiation.

How Do You Model Refinancing Risk in Excel?

As a balance at a date, tested against a range of market capacities — not as an assumed rollover.

The two outputs

PF_RefinancingWall     = Outstanding balance at mini-perm date
                       = $97,133,341   (64.8% of original)

PF_StepUpCost          = Equity NPV base − Equity NPV with penalties
                       = $4,497,998    (3.9%)

Report both. The second is what gets negotiated; the first is what determines whether the structure works.

The refinancing capacity test

Refi_Capacity = (CFADS_at_date / Target_DSCR) × Annuity(Refi_Rate, Refi_Tenor)

Shortfall     = MAX(0, Refinancing_Wall − Refi_Capacity)

Run it across a grid of target DSCR, rate and tenor rather than at a single point. The output is a surface, and what matters is how much of it produces a shortfall.

The CFADS sensitivity, which dominates

CFADS at refi date       Stressed-case capacity      Shortfall
$30.0m (as modelled)             $92,805,229           $4.3m
$28.5m (−5%)                     $88,164,968           $9.0m
$25.5m (−15%)                    $78,884,445          $18.2m

Every haircut from Series C lands here twice — once in the original sizing and again, compounded, in the refinancing capacity.

The date that must not be allowed to converge

Mini-perm refinancing date                     year 7
PPA expiry                                     year 15
Contracted life remaining at refinancing       8 years    ← check this

ℹ️ Note: A model that assumes the mini-perm simply rolls into a new facility at the same terms has not modelled refinancing risk; it has assumed it away. The minimum honest treatment is the wall, one stressed capacity case, and the resulting equity injection.

To build the refinancing wall, the capacity grid and the step-up cost, prompt Dezzmond with your facility terms and mini-perm date.

What Do Sponsors and Lenders Actually Check?

• What is the balance at the mini-perm date, in dollars and as a percentage of the original?
• What do the step-ups actually cost in equity NPV, discounted properly?
• How much contracted life remains at the refinancing date?
• What refinancing capacity does a stressed market provide, and what is the shortfall?
• Is the shortfall fundable from sponsor equity, and is anyone committed to it?
• Is it a hard or soft mini-perm? One is a default risk, the other a cost.
• Does the amortisation profile during the mini-perm reduce the wall enough to be worth the distributions it costs?

Frequently Asked Questions

What is a mini-perm?

A facility structured to be refinanced part way through the asset's life, typically around year seven. It lets construction-risk lenders exit and hands the operating asset to a market better suited to holding long-dated paper.

What is the difference between hard and soft?

A hard mini-perm has a legal maturity around seven years, so failure to refinance is an event of default. A soft mini-perm keeps a long-dated maturity and instead applies margin step-ups, cash sweeps and distribution bans to incentivise refinancing — failure is a cost, not a default.

How much do the step-ups cost?

On the worked case, $4.5m or 3.9% of equity NPV — less than sponsors expect, because the penalties operate from year eight and are heavily discounted, and because the resulting sweep repays the facility four years early.

What is the refinancing wall?

The balance outstanding at the mini-perm date — $97.1m, or 64.8% of the original facility, on the worked example. Unlike the step-ups it is not discounted away; it is a liquidity requirement in the year it falls due.

What does a refinancing cost?

Arrangement fees on the new facility, break costs and hedge termination on the old, plus largely fixed transaction costs — realistically three to five million dollars on a $97m refinancing. Size the new facility against the wall plus those costs, not against the bare balance.

Can a refinancing release cash to equity?

Yes. A project with an operating record can often support more debt than its original sizing allowed, and the difference is a refinancing gain distributable to equity. In PPP structures a share of that gain is frequently payable to the public counterparty under refinancing gain sharing provisions.

What most affects whether a refinancing succeeds?

Remaining contracted life and CFADS at the refinancing date. A project refinancing with a long PPA tail and stable cash flow is routine; one refinancing into a merchant period with deteriorated cash flow is a different transaction entirely.

Closing: Negotiate the Wall, Not the Ratchet

The soft mini-perm is designed to look frightening. A margin that ratchets, a sweep that takes everything, distributions that stop entirely — it reads like a penalty clause and it attracts negotiation accordingly.

It is worth 3.9% of equity value. Discounting does most of the work: penalties that begin in year eight, in a structure valued at a 12% equity rate, simply cannot be very expensive, and the accelerated repayment they cause returns part of what they take.

The refinancing wall is worth considerably more attention and gets considerably less. Nearly two thirds of the original facility falls due on a date fixed at financial close, into a market that does not exist yet, against cash flow that will have been reshaped by every mechanism the preceding two series described. In a benign market it refinances comfortably; in a stressed one it is short, and the shortfall is an equity call at the least convenient moment.

The useful discipline is to size the mini-perm around the wall rather than around the penalties. That means paying attention to the amortisation profile during the mini-perm period — the one place where accepting a faster schedule at the cost of distributions genuinely helps — and to the gap between the refinancing date and PPA expiry, which is the single variable that most determines whether the refinancing is ordinary or difficult.

The next post covers the accounts that sit between a shortfall and a default: reserve accounts, how they are sized, and what they actually protect against.

Sources: Practical Law — Hard Mini Perm Financing · Practical Law — Soft Mini Perm Financing · Lexology — Mini-Perms and PPPs: What Do You Need to Know? · Edward Bodmer — Mini-Perms and Re-financing