Going freelance: build your financial runway first

Why a runway, and why six months

As an employee, you’re paid on a fixed date even when work is slow. As a freelancer, three delays stack up before the first dollar lands:

1. Finding the client: outreach, proposals, negotiation.
2. Doing the work: a few days to several weeks.
3. Getting paid: invoices on 30-day terms are common, and late payment is common too.

Work you land in January can arrive in your account in April. Meanwhile, rent is due every month.

Six months is a cautious benchmark, not a requirement. Less if you leave with a signed first client or a retainer; more if your market has long sales cycles or you’re the only earner at home. This runway comes on top of your emergency fund, which stays in place for life’s surprises.

Step 1: work out your monthly need

Add up two columns from your last three months of statements.

• Personal essentials: rent or mortgage, utilities, insurance, groceries, transport, debt payments, the subscriptions you’d really keep. In the US, add health insurance if it came through your employer: it’s now your bill.
• Fixed business costs: software, equipment you’ll need to replace, a business bank account, professional insurance if you need it, an accountant.

Jordan, a UX writer in Denver, lands on $3,200 of personal spending and $300 of business costs: $3,500 a month. Six months of runway is 6 × $3,500 = $21,000.

If you don’t know your real numbers yet, start there: our guide to disposable income after bills walks you through it.

Step 2: the revenue you need, after tax

In the US, self-employment tax covers Social Security (12.4%) and Medicare (2.9%): 15.3% in total, applied to 92.35% of net earnings once they reach $400 a year. Income tax comes on top. If you expect to owe $1,000 or more for the year, the IRS generally expects quarterly estimated payments, due April 15, June 15, September 15 and January 15.

In the UK, you register for Self Assessment once trading income passes the £1,000 trading allowance. For 2026/27, Class 4 National Insurance is 6% on profits between £12,570 and £50,270 and 2% above; Class 2 is treated as paid once profits reach £7,105. Income tax comes on top.

A common way to budget for all this is to move a fixed share of every payment into a tax pot. The right share depends on your income, state or country and deductions; many freelancers start somewhere around 25 to 30% of profit and adjust once they’ve seen their first bill. We use 25% as an illustrative assumption below.

For Jordan, to keep $3,200 for living costs:

Revenue needed = ($3,200 ÷ 0.75) + $300 ≈ $4,567 a month

At $600 a billed day, that’s about 7.6 billable days a month. The rest of the time goes on finding clients, writing proposals and admin.

Step 3: model the first six months

The usual path isn’t zero for six months; it’s a ramp. Here’s Jordan’s, in revenue received (not invoiced):

In this scenario Jordan draws $6,225 from the runway, and from month 4 earns more than he needs. So why aim for $21,000? Because this table assumes things go to plan. If the first big client pays two months late, or a project is cancelled, the whole curve slides right. The gap between $6,225 and $21,000 is your margin for error.

The tax bill: set it aside the day you’re paid

Two things catch new freelancers out.

• The first bill arrives late, and big. In the UK, your first Self Assessment bill can include the balance for your first year plus the first payment on account for the next one. Payments on account are each half of last year’s bill, due by 31 January and 31 July, unless last year’s bill was under £1,000 or more than 80% of your tax was already collected at source. So the first January can feel like paying 150% of a year’s tax at once.
• US quarterly payments don’t wait for your invoices. September 15 comes whether or not the client has paid.

The habit that prevents most crises: every time a payment lands, move the tax share straight into a separate account. Never treat it as yours.

Smooth an irregular income: pay yourself a salary

Once you’re running, freelance income comes in waves: $7,000 one month, $1,500 the next. The trap is living at the level of the good months. Three rules fix it.

1. All revenue lands in the business account. Every client payment, no exceptions. Our guide to separating personal and business finances shows how to set it up in an hour.
2. A fixed transfer to your personal account, on the same day each month: your “salary”. For Jordan, $3,200.
3. The business account keeps a buffer of one to three months of salary. Good months fill it, lean months drain it, and your personal life doesn’t notice.

Once the buffer passes three months, you can raise your salary or boost your savings. Not before.

Before you hand in your notice

A few checks from the employee side, while you still have a paycheck:

• Health cover (US). If your employer had 20 or more employees, COBRA lets you keep the group plan for a limited time, but you may pay up to 102% of its full cost. Leaving job-based coverage also opens a 60-day Special Enrollment Period on HealthCare.gov. Compare both before you leave.
• Your retirement plan. A 401(k) can usually stay put or be rolled over. Cashing it out before 59½ generally triggers an extra 10% tax on top of income tax.
• Notice (UK). You must give at least a week’s notice after a month in the job, or whatever your contract says if longer. Any untaken statutory holiday must be paid when you leave.
• Start on the side. If your contract allows it, landing the first clients before you quit shortens the ramp more than any savings trick.

Track the runway, payments and tax pot in one place

In the first months, three numbers matter: what’s left in the runway, what’s come in, and what you owe in tax. In Binome360 you keep all three with a sentence each.

You can also create a “Freelance runway, $21,000” goal and watch the bar fill before you leave, set recurring reminders for each estimated tax date, and send quotes and invoices from your phone with automatic numbering. Binome360 doesn’t connect to your bank and isn’t a certified e-invoicing platform.

Frequently asked questions

How much money should I have saved before going freelance?

A common benchmark is six months of personal spending plus fixed business costs. At $3,500 a month, that’s $21,000. Less if you leave with a signed client or a retainer, more if clients take a long time to decide or pay.

How much should a freelancer set aside for taxes?

It depends on your income, where you live and your deductions. Self-employment tax alone is 15.3% on 92.35% of net earnings in the US; UK Class 4 National Insurance is 6% on profits between £12,570 and £50,270, plus income tax in both countries. Many freelancers start with 25 to 30% of profit and adjust after their first tax bill.

What is a financial runway?

The number of months you can cover your living and business costs from savings without any new income. Runway in months = savings set aside ÷ monthly need.

How do freelancers pay themselves?

Put all revenue into a business account, move the tax share out as each payment arrives, and transfer a fixed salary to your personal account on the same day each month. Keep one to three months of salary as a buffer in the business account.

In short

Going freelance safely starts with arithmetic: your monthly need times six, and the revenue that covers it after tax. Then two habits: move the tax share out the day you’re paid, and pay yourself a fixed salary. First action: add up your personal essentials and future business costs, and create a runway goal for six times that amount.

Sources

• IRS, “Self-employment tax (Social Security and Medicare taxes)”: irs.gov.
• IRS, “Estimated tax” FAQs (the $1,000 rule and quarterly due dates): irs.gov.
• IRS, “Retirement topics: exceptions to tax on early distributions”: irs.gov.
• GOV.UK, “Self-employed National Insurance rates” (2026 to 2027): gov.uk.
• GOV.UK / HMRC, “Taxpayers urged to get ahead of July Self Assessment payment deadline” (payments on account): gov.uk.
• GOV.UK, “Handing in your notice” and “Holiday entitlement: taking holiday before leaving a job”: gov.uk/handing-in-your-notice, gov.uk/holiday-entitlement-rights.
• US Department of Labor, “COBRA continuation coverage”: dol.gov; HealthCare.gov, “COBRA coverage”: healthcare.gov.
• Binome360 calculations for the Jordan example, September 2026.

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