Scarcity and the Decisions a Cash Crunch Makes
Why this matters
Every shop has a month where payroll is Friday and the bank balance does not cover it. The decisions made that week are some of the most consequential an owner makes all year, and they are made with the worst judgment the owner has all year. That is not a character flaw. A cash crunch narrows attention in a specific, predictable way, and the choices it produces tend to solve this Friday by making the next six Fridays harder. The fix is not willpower in the moment. It is a short list of rules written in a calm month, so the crunch has less to decide.
The idea: tunneling
The economist Sendhil Mullainathan and the psychologist Eldar Shafir studied people short of money, time and food, and published the work as Scarcity (2013). Their central finding is that scarcity captures attention. Whatever is scarce moves to the front of the mind and stays there.
That has an upside they call the focus dividend: people facing a deadline are often more productive and less wasteful with what is directly in front of them. An owner short of cash really does chase invoices harder and cut obvious waste. The downside they call tunneling: everything outside the tunnel stops being weighed at all. Not weighed lightly. Not weighed. The truck's overdue service, the tax deposit, next quarter's leads and the price of a job all fall outside, so a choice that helps this week wins even when it costs much more next month.
Their second finding is the bandwidth tax. Holding the shortfall in mind uses up mental capacity, which they measured as a drop in performance on reasoning tests when people were primed to think about a difficult money problem. In shop terms, the owner who has been doing payroll math in their head since Tuesday is quoting, dispatching and handling a hard customer on reduced capacity, and does not feel reduced.
Put the two together and you get the signature of crunch decisions: borrowing from the future at a bad rate, without noticing it is borrowing.
The moves a tunneled owner makes
Each of these looks reasonable inside the tunnel. The third column is what it looks like from outside.
| The move | Why it feels right this week | What it costs outside the tunnel |
|---|---|---|
| Take any job, at any price | Revenue is revenue | Low-margin work uses the same techs and trucks, and often needs materials bought up front, so it can consume cash before it produces any |
| Discount every open invoice for fast payment | Cash this week | The discount goes to customers who would have paid on time anyway; the slow payers, who are the problem, often ignore it |
| Skip truck and equipment maintenance | Nothing breaks this week | A breakdown in four weeks costs a truck off the road and the jobs on it |
| Stop marketing and lead spend | The easiest line to cut | The phone gets quiet 30 to 60 days later, which is when the crunch was supposed to be over |
| Delay a tax deposit | It feels like a short loan | It is the most expensive money a shop can borrow, and part of it is not the shop's money at all (see below) |
| Let the person who chases receivables go | Saves a salary | Cuts the one role that turns work already done into cash |
The pattern in that list: every move either spends future capacity or gives away margin, and most do both.
A worked crunch
A shop with eleven people (owner, office manager, eight techs, one apprentice) hits a mild, dead spring. All figures are in weeks of payroll, because that is the unit the owner is actually thinking in.
- Cash in the bank: 2.5 weeks of payroll.
- Receivables: 4.0 weeks of payroll, of which 40%, or 1.6 weeks, is over 45 days old.
- Booked work for the next two weeks is about 70% of normal.
On a Wednesday night, the owner writes down four ideas:
- Email every open invoice a 10% discount for payment within 7 days.
- Push the quarterly service on two trucks to next quarter.
- Take a commercial job a general contractor has offered: about six weeks of work for three techs, at roughly an 8% gross margin against the shop's normal 35%, with materials bought up front costing about 1.5 weeks of payroll, paid on 30-day terms after each monthly draw.
- Hold the payroll tax deposit for two weeks "until things pick up."
Here is each one, taken outside the tunnel.
Idea 1. A 10% discount on 4.0 weeks of receivables gives up as much as 0.4 weeks of payroll. Most of the current 2.4 weeks (4.0 minus 1.6) would have paid on time anyway, so most of that discount buys nothing. The 1.6 weeks of old money is what matters, and slow payers are slow for reasons a discount email rarely touches: a dispute, a missing lien waiver, an invoice sent to the wrong person. Better: the office manager phones each of the over-45-day accounts this week and asks what is stopping payment. Offer a discount only to a specific account where it unlocks a specific payment.
Idea 2. Two services skipped saves a small amount of cash now. A truck down for a week in May, in the first busy weeks, costs that tech's billed hours for the week, which is more than the service cost by a wide margin. Better: keep it. If something must give, defer a purchase that has no breakdown attached to it.
Idea 3. This is the one tunneling disguises best, because it looks like the solution. Follow the cash rather than the revenue. The shop spends 1.5 weeks of payroll on materials immediately, which takes cash from 2.5 weeks to 1.0. It then pays three techs for a month before the first draw is even billed, and waits 30 days after that to collect. The job brings in revenue and makes the crunch deeper for at least two months. At an 8% margin, it also leaves those three techs unavailable for normal work at 35% when the phone picks up. Better: decline, or counter with a materials deposit and two-week draws. If the contractor will not do either, the job's terms tell you who would be financing it.
Idea 4. See the next section. Better: call the shop's CPA before the deposit date, not after.
The four "better" answers together free cash only modestly at first: the calls on old receivables are the real lever, and if they bring in half of the 1.6 weeks of old money, that is 0.8 weeks of payroll, taking the bank from 2.5 to 3.3 weeks. The point is not that the outside view always produces more cash this week. It is that it produces less damage next month.
The tax deposit, specifically
Federal income tax and the employee's share of Social Security and Medicare that you withhold from paychecks are trust fund taxes at the federal level: money held for the government, not shop money. If they are not deposited, the IRS can assess the Trust Fund Recovery Penalty (Internal Revenue Code section 6672) against each person responsible for paying them who willfully fails to, personally, equal to the unpaid trust fund amount. That reaches owners and, depending on who controls the checkbook, sometimes office managers. Late-deposit penalties and interest come on top. States run their own withholding and unemployment systems with their own penalties, and some are stricter than the federal layer.
So "holding the deposit for two weeks" can turn a business cash problem into a personal debt. This is not legal or tax advice. The point at which to stop and call your CPA is before a deposit date you think you will miss. Walk in with the payroll register, the deposit schedule and a 13-week cash forecast, because those are the first three things they will ask for.
Guardrails, written in a calm month
The only reliable defense against tunneling is deciding in advance, while you can still see outside the tunnel. A one-page crunch card, written by the owner with the office manager and the bookkeeper in a normal month, does the job. Shops that have one usually include:
- The untouchables. Tax deposits, insurance premiums, vehicle and equipment maintenance, and the receivables role. These do not get cut or delayed without a call to the CPA or the bookkeeper first.
- A minimum price. No job below a stated gross margin (many shops set it at about 25%, tune to your own numbers) without a second person agreeing, and no job that requires materials up front without a deposit.
- A trigger. The card activates at a stated cash level, for example under 4 weeks of payroll in the bank, not when the owner feels worried. A number activates it earlier than a feeling does, while there are still good options.
- The first three moves. Call every receivable over 30 days. Review the next two weeks of schedule for jobs that can be pulled forward. Call the bank about the credit line before you need to draw on it, because a line is easier to get or increase before the balance sheet shows the crunch.
- A second opinion. Any commitment over a stated size made during a crunch needs one other person's agreement within 24 hours. Picking that person in advance matters; see related: Making Big Decisions When You Are Exhausted or Angry.
The card works because it moves the decisions out of the week when bandwidth is lowest. It does not need to be clever. It needs to exist before the crunch does.
What changes the answer
A crunch with a known end date. If a large, reliable payment lands in three weeks, short bridge financing from a bank line can be the right call, and the tunnel's focus on getting to that date is correct. The danger is a crunch whose end date is a hope rather than a check in the mail.
A crunch that is not temporary. If cash is short every slow season, scarcity is not the problem, the business model is: pricing, seasonality planning or overhead. Guardrails stop crunch decisions from making it worse but do not fix it. See related: Loss Aversion and Why Owners Will Not Raise Prices.
A shop with real reserves. An owner who keeps three months of operating costs in the bank rarely enters the tunnel at all, which is the strongest argument for building that reserve in good years. The research says scarcity itself degrades decisions, so the cheapest fix is to have less of it.
How to tell you are in the tunnel
Three signs, any one of which should make you pull out the crunch card: you are deciding by Friday's number instead of by the month's; you cannot say what a choice costs in four weeks, only what it saves this week; and you have not mentioned the problem to anyone, because explaining it would mean stepping out of it.
References
- Mullainathan, S. and Shafir, E., Scarcity: Why Having Too Little Means So Much (2013)
- IRS, Trust Fund Recovery Penalty (Internal Revenue Code section 6672) and employment tax deposit guidance in Publication 15
- See related: Making Big Decisions When You Are Exhausted or Angry
- See related: Stress-Testing a Plan With Three Scenarios
- See related: Cash vs Profit: Why They're Different