Most contracting businesses that fold in year one don’t fold because the phone stopped ringing. They fold with a full calendar and an empty bank account.
The work was there. The money leaked out through five specific holes. Here’s what each one costs, and the specific document or habit that plugs it.
| Mistake | What it costs in year one | What prevents it |
|---|---|---|
| Pricing by gut | $20,000–$30,000 in missing margin | A calculated hourly rate |
| Spending the tax money | $13,000+ bill you can’t pay in April | A separate tax account |
| Verbal scope | $2,000–$5,000 of free work | A one-page scope + change order |
| Financing the customer | $4,000 tied up, plus card interest | A deposit and progress-billing schedule |
| Taking every call | $15–$25/hr of realized rate | A minimum job size and service radius |
Mistake 1: You priced the job by what “felt right”
This is the biggest one and the hardest to see, because it doesn’t show up as a loss. It shows up as a year of exhausting work and $9,000 in the bank.
Say you run 40 jobs in your first year and you’re $700 light on each one — not a disaster per job, just a quote rounded down because the customer winced. That’s $28,000 of margin you handed away, which is roughly the difference between a business that survives and one that doesn’t.
The fix isn’t charging “more.” It’s charging a number you can defend. You need three figures: your fully-loaded labor cost, your overhead per billable hour, and the margin you add on top. Run them once and you’ll have a rate you can quote without flinching. That whole calculation is worked out in how to price contracting jobs so you actually make money.
Until you know your overhead per billable hour, you are guessing with your own money. Most new contractors are $15–$30/hour under where they need to be and don’t find out for 18 months.
Mistake 2: You spent the tax money
This is the one that ends businesses that were otherwise fine.
You had a good year. Deposits came in, you paid materials, you paid yourself, you bought a trailer. Then your accountant tells you what you owe, and the money is in the trailer.
Here’s how the arithmetic tends to run for a solo operator. These are illustrative numbers — your bracket, your state, and your filing status all change the result:
| Line | Example |
|---|---|
| Gross revenue | $142,000 |
| Materials, subs, direct costs | $61,000 |
| Overhead (truck, insurance, phone, tools, marketing) | $26,000 |
| Net profit the IRS cares about | $55,000 |
| Self-employment tax (~15.3% on 92.35% of net) | ~$7,800 |
| Federal income tax | varies — commonly $4,000–$6,500 at this level |
| State income tax | varies widely; some states, $0 |
| Plausible total due | $12,000–$16,000 |
Add penalties if you never made quarterly estimated payments, because the IRS expects the money as you earn it, not in one lump the following April.
The fix is mechanical, not financial. Open a second business savings account. Name it TAX. Every time a customer payment clears, move 25–30% of the profit portion — not the material reimbursement — into that account the same day. Then set four calendar reminders for the quarterly estimated payment deadlines and pay from that account.
Money in the tax account is not your money, and treating it as a balance you can “borrow against this month” is how good years turn into liens. If you’re newly profitable, spend an hour with a CPA before your first April. One conversation is cheaper than one penalty.
Mistake 3: You worked off a verbal scope
The customer says “and while you’re in there.” You say “no problem.” Multiply by eleven.
A real pattern: a $14,000 bathroom remodel where the homeowner believed the price included tiling the linen closet floor, swapping the hallway light on the same circuit, and hauling the old vanity to the dump. You believed none of that. You did all of it anyway, because you were four days from final payment and didn’t want a fight.
Call it 18 hours and $340 in materials. At a $75 billable rate, that’s $1,690 of free work on one job. Three of those and you’ve lost a month’s profit.
The document that prevents it is one page with two headings:
Included in this price
- Demo and haul-away of existing tub, surround, vanity, and flooring
- Supply and install customer-selected tile to shower walls and floor, up to 60 sq ft
- New shutoffs, trap, and supply lines at vanity
Not included in this price
- Any work outside the bathroom footprint
- Repairs to framing, subfloor, or plumbing discovered behind finishes
- Fixture upgrades beyond the specified allowance
Then a change order form with four fields: what changed, why, the price, and a signature line. Fill it out in the driveway on your phone. Nobody has ever been angry about a $280 change order signed before the work. Plenty of people have been angry about a $280 line item that appeared on the final invoice.
Verbal changes are gifts. If it isn’t signed, you’re donating.
Mistake 4: You financed your customer’s project
New contractors routinely float more money than they have. Here’s what that looks like on a $9,000 kitchen job:
| Day | Event | Your cash position |
|---|---|---|
| 1 | Buy cabinets and materials on the card | −$3,400 |
| 2–9 | Work the job, pay yourself nothing | −$3,400 |
| 10 | Finish, send invoice, terms “net 30” | −$3,400 |
| 38 | Customer pays | +$5,600 |
For five weeks you carried $3,400 of someone else’s kitchen on a credit card. At typical card rates that’s maybe $60–$80 in interest — annoying but survivable. The real damage is that you couldn’t take the next job because you had no cash for materials, and you couldn’t say that out loud, so you said “I’m booked for a few weeks” and lost the customer.
The fix is a billing schedule written into the contract before you start:
| Milestone | % of contract |
|---|---|
| Signed agreement (deposit) | 25–33% |
| Materials delivered / rough-in complete | 30% |
| Substantial completion | 30% |
| Final punch list signed off | Remainder |
Check your state rules — several states cap residential deposits as a percentage of contract value or a flat dollar amount, and some require specific contract language. That’s a 10-minute search on your state contractor board site, not a guess.
Then invoice the day you hit the milestone, not the Sunday you get around to paperwork. Payment terms, late fees, and the follow-up sequence that actually collects are covered in invoicing and getting paid.
A deposit isn’t a sign of distrust. It’s the line between a contractor and an unsecured lender.
Mistake 5: You said yes to every call
Year one feels like you can’t afford to turn work down. So you take the $180 outlet replacement 40 minutes across town.
Do the door-to-door math:
| Segment | Time |
|---|---|
| Drive out | 0.7 hr |
| Work | 1.2 hr |
| Supply house stop | 0.4 hr |
| Drive back | 0.7 hr |
| Total | 3.0 hr |
$180 ÷ 3.0 = $60/hour realized against a rate you calculated at $75. And that’s before the $14 in fuel. Do two of those a week for a year and you’ve burned roughly 300 hours earning $15/hour less than you needed. That’s about $4,500 of margin, plus 300 hours you could have spent on better jobs or at home.
The fixes are boring and they work:
- Set a minimum. “My minimum service call is $275, which covers the first hour.”
- Draw a radius. Pick 25 minutes from your shop. Outside it, you quote a travel charge or refer it out.
- Batch the small stuff. All service calls on Tuesday, grouped by neighborhood.
- Build a referral list. Hand the wrong-fit jobs to two other trades and they’ll hand you yours.
Turning down bad-fit work only feels dangerous when your pipeline is thin. If that’s the problem, fix the pipeline — getting your first 10 customers without spending on ads is the cheaper lever than driving 40 minutes for $180.
The habit that catches all five
Block 90 minutes on the first Monday of every month. Same time, no phone. Check five things:
- Cash in operating account vs. material commitments for the next 30 days
- Tax account balance vs. 28% of quarter-to-date profit
- Every open job: estimated hours vs. actual hours so far
- Every invoice over 15 days old
- Average realized revenue per working day this month
If you can’t answer those from your records in 90 minutes, your record-keeping is the problem to fix first.
Your next action
Open the tax savings account this week. Not next quarter — this week, before the next customer payment lands. It’s a 15-minute errand at the bank you already use, and it removes the single most common cause of a profitable first year ending in a crisis.