Contract or permanent? The delivery money math nobody runs for you

A mentee messaged me, thrilled and a little dazzled. She'd been offered a contract Scrum Master role at what worked out to nearly double her current salary if you just multiplied the day rate out. "It's so much more money," she said. "Why would anyone stay permanent?"

I've watched a lot of people make this decision, and I've made it myself, and here's the thing: the answer isn't obvious in either direction. Contract can absolutely be the better deal. So can permanent. But almost nobody actually runs the numbers properly before they choose, because the headline comparison, big day rate versus modest salary, is designed to make contract look like a landslide, and it isn't a fair fight. It's comparing a gross, before-everything number to a number that quietly already includes a lot you'd otherwise have to buy yourself.

Quick honesty before we start: I'm not a financial advisor, and none of this is financial advice. Your real numbers depend on your country, your tax situation, and your life, and for a big decision it's worth talking to an accountant. What I can do is show you the math nobody runs for you, so you can run it for yourself with your eyes open.

The day rate is a gross number pretending to be a net one. The salary is a net number hiding how much it's actually worth.

Why the headline comparison lies

Start with the trap itself. When someone quotes you a day rate, your brain does the easy multiplication: rate times five days times fifty-two weeks, and a huge annual number pops out that dwarfs the salary. That number is a fantasy, for two reasons. First, you will not bill 52 weeks. Contractors have gaps between contracts, and those gaps are unpaid. You take a holiday, you don't get paid. You get sick, you don't get paid. A contract ends and the next one takes three weeks to line up, you don't get paid. Second, and this is the one people really miss, that day rate is a gross figure out of which you have to fund everything a salary silently includes.

And a salary includes a lot. In the US, for private-industry workers, employer-paid benefits average about 30% of total compensation, roughly $13.79 an hour on top of $32.36 in wages {US BLS, Employer Costs for Employee Compensation, December 2025}. Read that carefully: for every dollar of salary, there's roughly another thirty cents of value, health coverage, retirement contributions, paid leave, that the employer is quietly paying on top. That figure is a US benchmark and it varies by country and role, but the shape holds everywhere: a salary is not the whole package. It's about seventy percent of it, with the rest paid in benefits you never see on your payslip.

So when you go contract, you don't just take on the risk of unpaid gaps. You also become the person who has to buy that other thirty percent yourself, out of the big gross day rate, before any of it is really yours. The headline comparison ignores both of these entirely, which is exactly why it's so misleading.

The comparison that's actually fair

Here's how you make it a fair fight. You don't compare the day rate to the salary. You compare two adjusted numbers that finally mean the same thing.

Adjust both sides until they mean the same thing. Then the gap between contract and permanent is usually far smaller than the headline suggests.

On the contract side, start with the day rate, multiply it by the number of weeks you'll realistically bill, not 52, be honest, maybe 46 or fewer once you count gaps, holidays, and sick time. Then subtract what you now have to self-fund: your own retirement savings, your own health coverage if it isn't provided, the paid time off you no longer get, and the cost of your own admin, accounting, and taxes, which for the self-employed can carry extra load an employee never sees. What's left is your real, comparable contract income.

On the permanent side, do the opposite. Take the salary, and add back the roughly 30% of value sitting in benefits, plus the paid vacation and sick days you actually get to take without losing income, plus the harder-to-price things like security and notice. Now you have the real value of the permanent package. Put those two honest numbers side by side, and the yawning gap from the headline comparison usually shrinks to something much closer, and sometimes it flips. Contract can still win, especially at higher rates. But it wins by a lot less than it looked like, and sometimes it quietly loses.

The money isn't the whole decision

Even once the money math is fair, money is only one column of this decision, and treating it as the whole thing is its own mistake. The two options give you genuinely different lives, and the non-financial differences are big enough to swing the choice on their own.

Beyond the money: each path buys a different mix of security, flexibility, and growth. The right answer depends on which you need right now.

Contract buys you flexibility, variety, and a fast, broad accumulation of experience across different organizations, which can be genuinely great for your skills and your resume. But you carry the risk. No safety net between gigs, no paid growth, no one investing in your development, and you're usually the first to go when budgets tighten. Permanent buys you stability, benefits, and, crucially, paid growth: training, mentoring, a path, someone with a reason to invest in you getting better. You give up the higher headline number and some freedom for that.

Which one is right isn't a fixed truth, it depends on where you are in your life. Early in your career, the paid growth and stability of a permanent role are often worth more than a higher rate, because you're still building the skills and the safety net. If you have heavy financial obligations or you value predictability, the security has real weight. If you have a cushion, deep experience, a strong network, and you value freedom, contracting can be a great life and a genuine raise. The point is that the money math tells you what you're actually choosing between financially, so you can weigh it against everything else honestly, instead of being blinded by a big gross number.

Run your own numbers, honestly

So before you say yes to either, do the boring thing that almost nobody does. Actually build the two adjusted figures for your specific situation. Be honest about how many weeks you'd really bill, don't use 52. Be honest about what benefits you'd have to replace and what they'd cost. Talk to an accountant about the tax reality in your country, because that's where a lot of the real difference lives and it's the part I genuinely can't generalize for you. And then put the two real numbers next to each other, alongside what you need right now in security, flexibility, and growth.

My mentee did this. Once she counted the unpaid gaps, the benefits she'd have to buy, and the tax she'd owe as a contractor, that "nearly double" shrank to something like fifteen percent more, for a lot more risk and no paid development, at a point in her career where she was still learning fast. She took the contract anyway, in the end, but for the right reasons and with clear eyes: she wanted the variety and had a financial cushion, and she'd priced exactly what she was giving up. That's the whole goal here. Not to talk you into either one. To make sure that whichever you pick, you did the math nobody runs for you, so you're choosing the real trade, not the illusion the headline number was selling.

Sources

U.S. Bureau of Labor Statistics, "Employer Costs for Employee Compensation, December 2025".