August 1, 2026

Income Share Agreements: How They Really Work

Abstract 3D render of two diverging metallic paths symbolizing a financial decision between two funding options

In April 2024, the Consumer Financial Protection Bureau permanently banned a coding school called BloomTech from ever lending money again. Its founder, Austen Allred, got a ten-year ban from student lending and a $100,000 personal fine. The company's crime wasn't a hidden interest rate or a bait-and-switch fee.

It was the way it sold income share agreements, a financing tool that Milton Friedman first pitched back in 1955 as a fairer alternative to debt. Seventy years later, that idea is still fighting for legitimacy, and BloomTech's collapse is a pretty good case study in why.

Here's the thing about ISAs: they sound simple. Pay nothing now, hand over a slice of your future paycheck later. But the mechanics underneath that pitch determine whether you come out ahead or get squeezed harder than any student loan would squeeze you. Let's get into how they actually work.

What an ISA Actually Is

An income share agreement isn't a loan in the traditional sense, and that distinction matters more than it sounds. Instead of borrowing a fixed amount at a fixed interest rate, you agree to pay a provider a percentage of your income for a set number of years after you finish school, and only once you're earning above a certain floor.

No interest accrues. No principal balance sits there compounding while you're unemployed. If your income drops, your payment drops with it — sometimes to zero.

Every ISA is built from five moving parts, and reading a contract without checking all five is how people get burned:

Income share percentage — usually 2% to 10% of gross monthly income, according to a Career Karma analysis cited by NerdWallet
Income threshold (salary floor) — the minimum income before payments kick in; Illinois-based programs commonly set this near $47,000, while BloomTech used $50,000
Payment cap — the maximum total you'll ever repay, often expressed as a multiple of what you received
Term length — typically 2 to 10 years of active payment obligation
Buyout option — a lump sum you can pay to exit the contract early

NerdWallet's underwriting guidance is blunt on this point: a payment cap greater than 2x the amount you borrowed is a red flag, full stop.

That cap is the whole ballgame. Without one, a graduate who lands a high-paying job could end up handing over three or four times what they received, with no ceiling in sight.

The Math, Worked Out

Numbers make this concrete faster than definitions do. Take a $20,000 ISA at a 5% income share over 10 years, with 4% annual raises baked into the projection. NerdWallet's modeling puts total repayment around $31,216 — about 56% more than the amount received.

Now compare outcomes across income levels on a $40,000 ISA with a 5% share and a 10-year term, using figures from Credible's analysis:

Annual Income	Annual Payment	10-Year Total	Result vs. $40,000 Borrowed
$60,000	$3,000	$30,000	You pay back less
$80,000	$4,000	$40,000	Roughly break even
$100,000	$5,000	$50,000	You pay back 25% more

Notice what this table actually shows: the ISA is a bet on your income trajectory, not a fixed price for education. Land a modest salary and you might genuinely pay less than you received. Land a great job and the same contract can cost you more than a private loan would have.

That's the trade nobody puts on the marketing page. A traditional loan charges you the same regardless of outcome. An ISA charges the lucky more and the unlucky less, which is either refreshingly fair or a tax on ambition depending on how your career goes.

Where the Idea Came From — and Why It Keeps Stalling

ISAs aren't new, and their history explains a lot about their current shakiness. Friedman proposed "equity investment" in human capital in 1955. Yale ran a modified version in the 1970s that required entire graduating cohorts to keep paying until every classmate's balance cleared — a design so unpopular that alumni were still trying to buy their way out of it decades later.

The modern wave started with Oregon's 2013 "Pay It Forward" proposal, followed by Senator Marco Rubio introducing federal ISA legislation in 2014. Purdue University's Back a Boiler program, launched in 2016, became the flagship example, raising $10.2 million for its ISA fund by 2018 and drawing praise from higher-ed policy circles.

Then reality caught up. Purdue paused new ISA enrollments in June 2022 after its servicer, Vemo Education, exited the market entirely. The University of Utah enrolled just 121 students since 2019 despite institutional backing. Northeastern University still uses ISAs, but narrowly, for its online nursing program.

Here's the non-obvious part: ISA providers, like any investor, want to fund students likely to earn well. That creates a quiet selection problem. Programs gravitate toward computer science and nursing, where income is predictable and high, and shy away from social work, education, and the arts, where the societal value is real but the earnings math doesn't pencil out for investors.

A 2022 Jobs for the Future study found something else worth sitting with: even when contract terms looked equitable across race and gender on paper, actual monthly payments varied by demographic group once you followed the money through. Equal terms don't guarantee equal outcomes.

When ISAs Go Wrong: The BloomTech Playbook

BloomTech, formerly known as Lambda School, is the clearest warning label the industry has produced. The coding bootcamp advertised job placement rates of 74% to 90%. Internal documents the CFPB obtained put the real number closer to 27% to 50%.

Students who did land jobs above $50,000 owed 14% of their income for four years, capped at $40,000 total. That's not a small commitment — it's roughly the median new-car price, paid out of a starting salary, for work the school allegedly oversold.

The CFPB's April 2024 settlement required BloomTech to:

Permanently exit the consumer lending business
Pay a $64,235 civil penalty
Rescind ISAs for graduates who never landed qualifying jobs
Eliminate finance charges for grads 18+ months out earning $70,000 or less
Let current students cancel their agreements outright

The agency's core finding is worth quoting directly: BloomTech told students its ISAs "were not loans and carried no finance charge," while structuring and selling those same contracts to investors well before students got hired — meaning the company's incentives were never actually tied to student success the way the marketing implied.

This is why the "we only win when you win" pitch deserves skepticism. If a provider sells your contract to a third party the moment you sign, they've already been paid. Your outcome becomes someone else's problem.

ISA vs. Traditional Student Loan

Neither option is universally better. The right call depends on your major, your risk tolerance, and honestly, your gut feeling about your own earning trajectory.

Factor	Income Share Agreement	Student Loan
Interest	None — you owe a % of income instead	Fixed or variable APR accrues over time
Payment trigger	Only above income threshold	Due regardless of income (deferment aside)
Credit check	Not required	Required for private loans; cosigner often too
Forgiveness programs	None	Federal PSLF and income-driven forgiveness available
Tax treatment	No interest deduction (there's no interest)	Loan interest may be tax-deductible
Regulatory oversight	Thin — CFPB says "generally" covered, no ISA-specific law	Well-established (Truth in Lending Act, etc.)
Total cost if you earn well	Can exceed loan cost significantly	Fixed and predictable
Total cost if you earn poorly	Can be less than what you received	Balance and interest keep accruing

The regulatory gap is the sleeper issue here. The bipartisan ISA Student Protection Act of 2023, reintroduced by Senators Todd Young, Mark Warner, Marco Rubio, and Chris Coons, would have capped how much of your income providers can take and for how long, plus clarified that ISAs aren't legally "debt." It was referred to committee in January 2023 and hasn't moved since — a familiar fate for financial-product legislation that no single lobby is pushing hard enough to pass.

I'll say the quiet part out loud: until Congress or the CFPB writes ISA-specific rules, you're relying entirely on the fine print of an individual contract for protections a mortgage or federal loan gives you automatically. That's not a reason to avoid ISAs. It's a reason to read every clause twice.

Who Should Actually Consider One

Think of this as a decision tree, not a verdict.

If you're heading into a field with a predictable, moderate-to-high salary ceiling (nursing, software engineering, allied health), an ISA with a tight payment cap can be a reasonable hedge — you know roughly what you'll owe relative to what you'll earn.

If you're heading into a field with high upside but real variance (sales, entrepreneurship, entertainment), be wary. The whole point of an ISA is that it captures more of your income when you do well, and a breakout year could make the loan look cheap in hindsight.

If you're heading into low-paying but socially valuable work (teaching, social work, nonprofit management), ISAs are often simply unavailable to you, because providers underwrite for repayment capacity, not mission. Don't assume the option will even be on the table.

A few practical checkpoints before signing anything:

Exhaust federal student loans first — they carry protections (forgiveness, income-driven repayment, death/disability discharge) that ISAs don't replicate
Confirm the payment cap in writing; anything above 2x the funded amount is a dealbreaker
Ask directly whether the provider sells contracts to investors, and if so, when
Run your own numbers at three income scenarios (modest, expected, strong) before comparing against a loan quote
Check whether your state or program has been named in any CFPB or state AG action — BloomTech won't be the last

Only about 50 colleges and training programs offer ISAs today, per figures cited by NerdWallet, so this isn't a mainstream financing rail yet. That smallness cuts both ways: less competition to shop between, but also less regulatory attention per program, which is exactly the gap BloomTech slipped through.

Bottom Line

Read the payment cap before anything else. It's the single number that determines whether an ISA is a fair deal or an open-ended liability.
Exhaust federal loans first. They come with legal protections — forgiveness, income-driven repayment, discharge on disability — that no ISA currently matches.
Ask who buys the contract. If your provider sells ISAs to investors before you're employed, their incentives aren't aligned with your outcome the way the pitch implies.
Model your own income scenarios, not the provider's example. A contract that looks great at a modest salary can cost thousands more if you land a strong job.
Treat the regulatory gap as real risk, not fine print. Until the ISA Student Protection Act or something like it passes, you're the one enforcing fairness on your own contract.

Frequently Asked Questions

Are income share agreements legal in the US?

Yes, ISAs are legal, but they exist in a regulatory gray zone. The CFPB has said they're "generally subject to consumer financial laws" like the Truth in Lending Act, but there's no ISA-specific federal statute — which is exactly the gap the stalled ISA Student Protection Act was written to close.

Do income share agreements affect your credit score?

Most ISA providers don't require a credit check to originate the agreement, so it typically won't affect your score at signing. However, missed payments can still be reported to credit bureaus and damage your credit, depending on the provider's servicing terms — check this before you sign.

Can you pay off an ISA early?

Many ISAs include a buyout option, letting you pay a lump sum (often based on remaining expected payments) to exit the contract before the term ends. Terms vary widely by provider, so confirm the buyout formula in writing rather than assuming it's a simple payoff of the original amount.

Is it true that ISAs are basically a scam?

Not inherently — the structure itself (pay based on income, nothing if you're broke) is legitimate and predates modern fintech by seventy years. But the BloomTech case shows the model is easy to abuse when a provider misrepresents outcomes or sells contracts to investors before students are employed, so the risk lives in the provider's honesty, not the mechanism itself.

What happens to my ISA payments if I lose my job?

Reputable ISA contracts pause payments automatically once your income drops below the threshold, sometimes with a maximum number of "grace" months per year. This is the core selling point over a student loan, where payments (or interest) generally continue regardless of employment status unless you actively apply for deferment.

How do I know if an ISA's terms are actually fair?

Compare the payment cap to the amount funded (anything over 2x is a red flag), check the income threshold against realistic entry-level salaries in your field, and run the total cost at both a modest and a strong income scenario. If the provider can't clearly explain how they profit or whether they sell contracts to investors, treat that as a warning sign rather than a technicality.