Career Break

The full cost of a career break

The obvious cost of a break is the salary you do not earn. The larger and less visible cost is that you rejoin the ladder where you left it, while the people who stayed kept compounding — and that gap persists for the rest of your working life.

How it works

• Totals the direct income forgone during the break.
• Compounds the salary path with and without the break to show the permanent gap on return.
• Adds the employer pension contributions that stop while you are away.

direct loss = salary × years away

staying path  = salary × (1 + raise)^total years
break path    = salary × (1 + raise)^(total years − years away)

permanent gap = staying path − break path
pension lost  = salary × contribution rate × years away

Worked example

A two-year break from a 90,000 salary, viewed at the ten-year mark, with 3% annual raises and a 5% employer pension.

1. direct income forgone = 90,000 × 2 = 180,000
2. staying path at year 10 = 90,000 × 1.03¹⁰ = 120,952
3. break path (eight growth years) = 90,000 × 1.03⁸ = 114,009
4. permanent salary gap = 6,943 a year, ongoing
5. employer pension not paid = 90,000 × 5% × 2 = 9,000

180,000 in forgone income, 9,000 in lost pension contributions, and a salary still 6,943 lower at the ten-year mark — a gap that does not close by itself and compounds into every later raise.

Reading the result

• This assumes you return at your previous salary. Many people return below it, particularly after longer breaks or in fast-moving fields, which widens the permanent gap considerably.
• The model ignores what a break may be worth. Caring for a child or relative, recovering health, retraining or simply not burning out are not costs — they are the point. The arithmetic is here to price the trade-off honestly, not to argue against it.
• Pension damage compounds hardest because it has the longest runway. Contributions missed at thirty have three decades to grow; the 9,000 above is worth considerably more than 9,000 by retirement.
• Returner programmes, phased returns and keeping a professional network warm all measurably reduce the re-entry penalty. The gap is an average, not a fixed rule.

Common questions

Does the salary gap ever close?

Not on its own. Percentage raises applied to a lower base preserve the difference indefinitely, and it grows in absolute terms each year. Closing it requires an above-market step — usually a job change negotiated on market rates rather than on your current salary.

Is a shorter break disproportionately better?

Yes. The permanent gap scales with the growth years missed, so two years costs roughly twice what one year costs, and re-entry becomes harder as the break lengthens. If the choice is available, several shorter breaks generally cost less than one long one.