Should I fund a break from cash or from investments?

A break funded entirely from cash leaves your portfolio alone. It keeps growing through the months you are away, and the only thing you lose is the contributions you did not make. For most people that is a delay measured in months.

A break funded by selling investments is a different thing wearing the same clothes. You lose the contributions, and you also remove capital that would have compounded until the day you stopped working. The gap between those two outcomes is usually larger than the size of the break suggests.

Three costs stack up, and they are not equally obvious.

The compounding you gave up. This is the big one and the quiet one. Twenty thousand dollars taken out at 40 is not twenty thousand dollars missing at 60. At a 7% real return it is closer to seventy-seven. The withdrawal is small; the hole it leaves keeps growing.

The tax. Selling in a taxable account realizes a gain you may owe tax on. Taking money out of a retirement account before 59½ generally adds a 10% tax on top of the income tax, unless you qualify for an exception.

The timing you do not control. A break is planned around your life, not around the market. If you need to sell in a month when prices are down, you have converted a paper loss into a permanent one, and the recovery happens without that money in it.

If some selling is unavoidable, the account it comes from changes the bill a great deal.

Taxable brokerage. No early withdrawal penalty at any age. You owe tax on the gain, not on the whole withdrawal, and how much depends on how long you held it and what else is on your return that year. A break year with little salary in it is often a low-income year, which can matter here.

401(k) or similar workplace plan before 59½. The IRS generally adds a 10% tax to an early distribution, on top of income tax. One exception is worth knowing: if you separate from service during or after the calendar year you turn 55, distributions from that employer’s plan are exempt from the 10%.

Easy to get wrongThat age-55 exception belongs to the workplace plan. The IRS is explicit that there is no equivalent exception for IRAs. Rolling a 401(k) into an IRA on your way out the door, a very common piece of tidying, can remove an exception you were about to rely on.

Roth contributions. Contributions you made to a Roth IRA can generally come back out without tax or penalty, because you already paid tax on them. Earnings are a different matter and have their own rules. Check which of the two you would actually be touching before treating a Roth as an emergency fund.

Plenty of breaks are worth a delay, and treating the cash rule as absolute leads people to postpone something for years to protect an outcome they do not actually want.

Selling is reasonable when the break is not optional, when a smaller break would not do the job, or when waiting to save the cash costs more than the sale does. Three years of saving to protect a projected date that moves by eight months is a trade worth examining rather than assuming.

The useful version of this decision is not cash against investments. It is the size of the gap against the length of the delay, and both of those are numbers you can get.

The sabbatical lever does this calculation for you. It adds up what the break requires, compares it with the cash you say you have, and shows any shortfall as a funding gap. The delay figure underneath already assumes that gap comes out of investments at the start of the break, so the number you see is the expensive version rather than the hopeful one.

Tax rules here are from IRS guidance. They change, and they interact with the rest of your return in ways a page like this cannot see.

• IRS — Topic no. 558, Additional tax on early distributions from retirement plans other than IRAsThe 10% additional tax, and the age 59½ line.
• IRS — Retirement topics: exceptions to tax on early distributionsThe separation-from-service exception at 55, and the statement that it has no IRA equivalent.
• IRS — Publication 590-B, Distributions from Individual Retirement ArrangementsHow IRA distributions, including Roth, are treated.
• IRS — Substantially equal periodic paymentsThe 72(t) route, for anyone considering a long break rather than a year.

Why is selling so much more expensive than skipping contributions?

Skipping a contribution means a deposit that never happens. Selling means capital leaving an account that was already compounding. The second one keeps costing you for every year between the sale and the day you stop working.

Does a low-income break year make selling cheaper?

In a taxable account it can, since what you owe on a gain depends on the rest of your income that year. It does nothing about the 10% additional tax on an early retirement distribution, which is not a function of your income.

Should I use a HELOC or a loan instead?

That swaps an investment cost for a borrowing cost, and it adds a payment you have to make during the months you have no salary. The app does not model debt, so it cannot score that one for you.

What counts as cash for this purpose?

Money you can spend without selling an investment or paying a penalty. Chequing, savings, money market. The app treats your cash and taxable brokerage as the liquid part when it works out a runway, and keeps home equity out of it.