Term Loan A vs Term Loan B: Who Holds It, How It Amortises, and Why the Pricing and Covenants Diverge
Michael King, PE Investment Manager · 9 min read ·
- The split is the lender, not the ranking. A TLA and a TLB are both senior secured, first-lien term debt that rank pari passu. What separates them is who holds the paper: the TLA and the revolver are the pro rata facilities, syndicated to relationship banks, while the TLB is the institutional facility, sold to CLOs and loan funds
- Amortisation is the visible difference. A TLA amortises heavily — often 5–10% of principal a year over a roughly five-year life — while a TLB repays a token 1% a year and bullets the remaining ~93% at around seven years
- Price follows the buyer. The TLA prices inside the TLB, frequently by 50–150 basis points, because banks cross-sell ancillary business and accept a lower yield; institutional TLB buyers are paid for yield alone
- Covenants have split too. The pro rata facilities often keep a maintenance or springing financial covenant that protects the banks and the revolver, while the TLB is cov-lite — the same borrower, two covenant packages in one credit agreement
The Split Is Who Holds the Paper, Not Where It Ranks
Both tranches sit in the same seat in the capital structure — senior secured, first lien on substantially all the assets, ranking pari passu with each other. If they rank together and share the same collateral, the natural question is why a borrower issues two term loans at all. The answer is that they are built for two different lenders. The Term Loan A, together with the revolving credit facility, forms the pro rata tranche — so called because it is allocated pro rata across a syndicate of relationship banks, which take the amortising loan and the undrawn revolver as a package. The Term Loan B is the institutional tranche, distributed to non-bank investors: collateralised loan obligations, dedicated loan funds and credit managers who want a longer, less-amortising, higher-yielding asset.
That single distinction — a bank lender versus an institutional one — drives every other difference. Banks want their principal back on a schedule and cross-sell other products to the borrower; institutional funds want to put money to work at a yield for as long as possible. Read the four differences that follow as consequences of that, not as an unrelated list to memorise.
Amortisation: A Front-Loaded TLA vs a 1% Bullet TLB
A TLA is a back-to-basics amortising loan. Principal repays on a mandatory schedule — commonly around 5% in the early years and stepping up, so that a large share of the loan is retired over a roughly five-year term. The bank gets its money back steadily and its exposure falls every quarter. A TLB inverts that: it carries only 1% annual amortisation and repays the remaining ~93% as a single bullet at maturity, typically about seven years. The institutional holder keeps its full position outstanding and earning for almost the whole life of the loan.
The amortisation profile is not a detail — it changes the cash flows of the buyout. Mandatory TLA amortisation is a first claim on free cash flow, competing with the cash sweep and leaving less for the sponsor to reinvest or to de-lever opportunistically. A TLB’s token 1% frees up that cash but pushes a large bullet to the end, creating refinancing risk the sponsor must clear before maturity. In the sources and uses, a heavier TLA reduces the cash available to run the business in the early years; a TLB-heavy structure keeps it.
Pricing: The TLA Sits Inside the TLB
Both are floating-rate — a base rate (SOFR, SONIA, EURIBOR) plus a credit margin — but the margins differ, and the direction is consistent: the TLA prices tighter than the TLB, often by 50 to 150 basis points on the same credit. The reason is the lender, not the risk. A relationship bank taking the pro rata facility is also chasing the borrower’s cash management, hedging, trade finance and future M&A mandates, and it accepts a lower loan yield as the entry price for that ancillary revenue. An institutional TLB buyer has no such cross-sell — a CLO is paid by the spread on the asset alone — so it demands a higher margin to hold the paper.
This is why comparing the two on headline coupon misleads. The TLA looks cheaper because the bank is monetising the relationship elsewhere; the TLB looks dearer because its yield is the whole return. How that TLB margin is actually set — original issue discount, market flex, the flex up or down during syndication — is its own mechanic, covered in leveraged loan pricing.
Covenants: The Split-Covenant Structure
The covenant packages have diverged as sharply as the amortisation. The institutional TLB is now almost always covenant-lite — carrying incurrence-style covenants tested only when the borrower takes an action, with no quarterly maintenance test — and cov-lite runs at roughly 90% of the outstanding US institutional loan market. The pro rata facilities frequently keep a genuine maintenance covenant, but structured so it protects the banks: a leverage test that is springing, biting only when the revolver is drawn beyond a set threshold, and benefiting the revolver and TLA lenders rather than the TLB holders.
The result is one credit agreement carrying two covenant regimes. The banks, whose revolver funds day-to-day liquidity, retain an early-warning test on their piece; the institutional TLB lenders, who cannot easily police the borrower quarter to quarter, live with incurrence protection only. This is the modern shape of the covenant erosion described in debt covenants and cov-lite — not that covenants vanished everywhere, but that they retreated to the tranche the banks still hold.
Call Protection and Prepayment
A TLA is prepayable at par with no call protection — a bank is happy to be repaid early and redeploy the capital, and the mandatory amortisation is already handing principal back on schedule. A TLB carries soft-call protection: a 101 premium on any repricing or refinancing in roughly the first six months, after which it too repays at par. The soft call exists because the institutional buyer bought the loan for its yield, and a repricing days after close would strip the spread it underwrote; the six-month 101 is a modest, time-limited discouragement rather than the hard non-call period a high-yield bond uses. For the full mechanics of soft call versus make-whole, see call protection explained.
Who Buys Each — Banks vs CLOs
The investor base is the cause of everything above, so it is worth stating plainly. TLAs and revolvers are held by commercial and corporate banks — relationship lenders who value the amortisation, the ancillary business and the maintenance covenant. TLBs are held by institutional investors, and the dominant buyer is the CLO, which absorbs the majority of institutional loan issuance because senior secured, floating-rate paper with minimal amortisation is exactly what its own floating-rate liabilities require. A CLO does not want a loan that amortises away under it; it wants the balance to stay outstanding and earning — which is the TLB by design.
Geography follows the same logic. The US leveraged loan market is overwhelmingly a TLB market — institutional term loans make up the large majority of the roughly $1.4 trillion outstanding — and the TLA is more common in investment-grade, crossover and bank-led financings. Europe was historically more bank-driven and TLA-heavy, but its institutional market has grown and the TLB structure now dominates European buyouts too, with the pro rata TLA reserved for stronger or more bank-relationship-led credits.
| Dimension | Term Loan A (pro rata) | Term Loan B (institutional) |
|---|---|---|
| Held by | Relationship banks (with the revolver) | CLOs, loan funds, credit managers |
| Amortisation | Heavy, ~5–10% p.a., front-loaded | ~1% p.a. with a bullet at maturity |
| Maturity | ~5 years | ~7 years |
| Pricing | Tighter (banks cross-sell) | Wider (yield is the whole return) |
| Covenants | Often maintenance / springing test | Cov-lite (~90% of new issue) |
| Call protection | Prepayable at par, none | Soft call (101, ~6 months), then par |
The Borrower’s Trade-Off: Amortisation Discipline vs Cash-Flow Flexibility
Reduce it to the sponsor’s decision and the TLB wins most buyouts for one reason: cash. Minimal amortisation leaves free cash flow inside the business to fund growth, bolt-ons and returns rather than mandatory repayment, and the longer maturity removes near-term refinancing risk. A sponsor underwriting a leveraged buyout wants leverage that stays in place and cash that stays free, and the institutional TLB delivers both — which is why it, not the TLA, is the backbone of the modern buyout debt stack.
The TLA earns its place where the borrower values the bank relationship or the discipline of paying debt down. Investment-grade and crossover issuers, corporates running a bank-led financing, and deals where the sponsor wants to retire debt quickly and cheaply all favour the pro rata structure. Larger buyouts simply carry both: a revolver and a TLA for the bank group, a TLB for the institutional market, and often a private credit unitranche as the single-instrument alternative that collapses the whole term stack into one privately-negotiated facility. For the full ordering of these layers, see the LBO debt stack.
How This Shows Up in the Interview
“What’s the difference between a Term Loan A and a Term Loan B?” is a standard leveraged-finance and PE screen, and a weak answer stops at “the B amortises less.” A strong answer names the cause first — the TLA is bank-held pro rata paper, the TLB is institutional — and then derives the consequences: heavy versus token amortisation, tighter versus wider pricing, a maintenance or springing covenant versus cov-lite, par prepayment versus a short soft call. Close on the sponsor’s logic: a buyout reaches for the TLB because minimal amortisation and a longer bullet keep cash free and leverage in place. Being able to add that pro rata facilities can keep a springing covenant even in a “cov-lite” deal is what separates a candidate who has read a credit agreement from one who has read a glossary.
Take Your Preparation Further
This tranche sits inside the wider financing picture. For the whole capital structure and where each layer ranks, read the LBO debt stack explained; for how the two loan types compare with the bond market, leveraged loans vs high-yield bonds; and for the covenant erosion behind the cov-lite figure, debt covenants and cov-lite.
To keep the leverage and coverage ratios credit investors actually test at your fingertips, download the free Financial Ratios Cheat Sheet, and to build a debt schedule that carries both an amortising TLA and a bullet TLB, use the LBO Model Template.
Ready for personalised feedback? Book a 1-on-1 mentoring session with an experienced IB/PE professional.
Frequently asked questions
What is the difference between a Term Loan A and a Term Loan B?
They are two tranches of the same senior secured, first-lien term debt, separated by who holds them rather than by ranking — the two rank pari passu on the same collateral. A Term Loan A is held by relationship banks alongside the revolver (the "pro rata" facilities), amortises heavily — often 5–10% of principal a year over a roughly five-year term — and prices tighter because the bank cross-sells other products. A Term Loan B is held by institutional investors such as CLOs and loan funds, repays only about 1% a year with a bullet at around seven years, prices wider because yield is its whole return, and is now almost always covenant-lite.
Why does a Term Loan B amortise less than a Term Loan A?
Because its buyer wants the balance outstanding. A Term Loan B is bought mainly by CLOs and loan funds whose economics depend on holding a floating-rate, senior secured asset that keeps earning a spread — an amortising loan that pays itself down would shrink that position and the CLO’s arbitrage with it. So the TLB carries only a token 1% annual amortisation and repays the rest as a single bullet at maturity. A Term Loan A is held by banks that want their principal back on a schedule and reduce their exposure each quarter, so it amortises heavily and front-loads repayment over a shorter term.
Is a Term Loan A cheaper than a Term Loan B?
It usually carries a tighter margin — often 50 to 150 basis points inside the TLB on the same credit — but that is not because it is safer; the two rank equally on the same collateral. The TLA prices tighter because the relationship bank holding it also earns ancillary revenue from the borrower — cash management, hedging, future M&A mandates — and accepts a lower loan yield as the price of that business. An institutional TLB buyer has no such cross-sell, so it demands a higher spread because the yield on the loan is its entire return. Comparing the two on headline coupon alone therefore misleads.
What are pro rata and institutional tranches?
They are the two halves of a leveraged loan financing split by lender type. The "pro rata" tranche is the revolving credit facility plus the Term Loan A, allocated pro rata across a syndicate of relationship banks that take the undrawn revolver and the amortising loan as a package. The "institutional" tranche is the Term Loan B, distributed to non-bank investors — CLOs, loan funds and credit managers — that want a longer, less-amortising, higher-yielding asset. The names capture the whole distinction: banks hold the pro rata facilities and often keep a maintenance covenant on them, while institutional investors hold the cov-lite TLB.
Which do private equity firms use in a buyout?
Predominantly the Term Loan B. A sponsor funding a leveraged buyout values the two things the TLB provides: minimal (~1%) amortisation, which keeps free cash flow in the business for growth, bolt-ons and returns rather than mandatory repayment, and a longer bullet maturity that removes near-term refinancing risk. The pro rata TLA and revolver still appear — larger deals carry both, keeping a relationship bank group and their covenant in the structure — but the institutional TLB is the backbone of the modern buyout debt stack. Increasingly a private credit unitranche is the single-instrument alternative that replaces the whole term-loan stack.