You will almost certainly not retire on the same day
Retirement planning for couples is usually presented as a single number — the amount the household needs — and then a savings rate to reach it.
That framing hides the thing that actually breaks plans, which is that two people rarely stop working at the same time. An age gap, different careers, different health, different willingness to keep going. One of you will retire first, often by several years.
That gap is where the planning gets hard: health insurance before Medicare eligibility, one income supporting two people, and decisions about which accounts to draw from that are difficult to reverse.
Plan for the gap and the rest is arithmetic. Plan for a single date and you will be improvising at the worst possible time.
Two sets of accounts, one household number
The first shift is mental. You have two of everything — two employer plans, possibly two IRAs, two Social Security records — and it is natural to manage them as two plans.
They are one plan. What matters is the household's total, its overall allocation, and its combined tax position. Optimising each account separately routinely produces a worse result than coordinating them.
Two examples of why. If one employer plan has substantially better fund options and lower fees, additional contributions belong there rather than being split evenly out of a sense of fairness. And if one of you has access to a Roth option and the other does not, the household can deliberately hold some money in each tax treatment — which is worth real money in retirement.
Track one number: total household retirement savings. Then track the allocation across all accounts combined. Individual account balances matter far less than either.
Getting both employer matches before anything clever
Both of you contribute at least enough to capture the full employer match. This comes before every other retirement decision.
It is an immediate guaranteed return that exceeds any strategy you might otherwise pursue, and it is the single most common thing couples leave on the table — usually because one partner's plan is worse and they deprioritised it entirely, missing the match along with the bad funds.
Check both match formulas properly. They differ in structure, not just percentage, and some require contributions spread across the year rather than front-loaded. A couple who maxes out early can accidentally forfeit later matching contributions.
After both matches, direct additional money to the better plan. That is the coordination benefit, and it is worth checking rather than assuming.
How much do you actually need?
The question everyone starts with, and the honest answer is that the published rules of thumb are poor for couples specifically.
The common guidance — save some multiple of your salary by a given age, or plan to replace a percentage of your income — was mostly built around a single earner. A two-income household has different mechanics: two sets of savings, two Social Security records, and expenses that do not double.
A better starting point is to work from spending rather than income. Take what you actually spend now, subtract what disappears in retirement — commuting, retirement contributions themselves, a mortgage if it will be paid off — and add what appears, principally healthcare.
That gives an annual figure. Subtract expected Social Security for both of you, and what remains is what your savings need to produce each year.
The usual planning shorthand is that a portfolio can support withdrawals of roughly four percent of its starting value annually, adjusted for inflation, over a thirty-year retirement. It is a rough guide rather than a law, and it is sensitive to how markets behave in the first few years. But it converts an annual need into a target, which is what makes the number actionable.
Averages are not a target
Published figures for average couple retirement savings are widely quoted and close to useless. They are dragged around by a small number of very large balances, they say nothing about spending, and they include households with pensions alongside households without.
Your number depends on what you spend and when you stop. Someone else's average tells you nothing about either.
The gap year, and what health insurance does to it
The most expensive and least planned part.
If one of you retires before Medicare eligibility, health coverage has to come from somewhere. The options are staying on the working spouse's employer plan, temporary continuation coverage from the former employer, or buying on the individual market.
Being on a working spouse's plan is usually the best outcome by a wide margin, and it is worth planning around explicitly — it can be a genuine reason for the younger or lower-earning spouse to keep working a few extra years.
The individual-market route is where people get caught, because premiums for a couple in their late fifties or early sixties can be substantial. Price it before deciding a retirement date, not after.
One planning wrinkle worth knowing: marketplace subsidies are based on income, and drawing from pre-tax retirement accounts increases income. So how you fund the gap year affects what your insurance costs, which is exactly the kind of interaction that only shows up if you plan the two together.
Which account to draw from first, and why
Sequencing withdrawals is where coordinated planning earns the most, and it is genuinely counterintuitive.
The conventional order is taxable accounts first, then tax-deferred, then Roth last. It is a reasonable default and it is frequently not optimal for couples.
The refinement: the years between retiring and starting required distributions are often a low-income window. Deliberately drawing from — or converting — tax-deferred accounts during those years, filling up the lower tax brackets, can substantially reduce lifetime tax. Doing nothing in those years and then facing large required distributions later is a common and expensive outcome.
For a couple this is more complex and more valuable, because you have two sets of accounts and the timing of two retirements to work with. It is also the point at which a single paid hour with a fee-only planner tends to pay for itself many times over.
Social Security timing as a joint decision
Individual benefits, joint decision, and treating them separately costs couples money.
The core mechanic: claiming early permanently reduces your benefit; delaying increases it. For a single person the calculation is mostly about life expectancy. For a couple it is different, because of survivor benefits.
When one spouse dies, the survivor generally keeps the larger of the two benefits. Which means the higher earner's claiming decision determines the income of whichever of you lives longer.
The strategy that follows is common and underused: the higher earner delays as long as they can afford to, maximising the benefit that will eventually support the survivor, while the lower earner may claim earlier to provide income in the meantime.
Run your actual numbers rather than following a rule. But make it a joint decision, because one of you claiming early can reduce the other's income for decades after.
The vulnerabilities specific to couples
Four risks that only exist because there are two of you.
One partner has no retirement savings of their own. Extremely common where one person stepped back to raise children. A spousal retirement contribution exists precisely for this and is routinely forgotten — the working spouse can contribute to an account in the non-earning spouse's name.
Only one of you understands the plan. The most consequential vulnerability on the list. If one person manages everything and dies first, the other inherits a system they cannot operate at the worst moment of their life.
The survivor's income falls further than their costs. Household expenses do not halve when one person dies, but Social Security income can drop substantially. This gap is what life insurance and delayed claiming are actually for.
Long-term care. If one partner needs care, it can consume assets meant for both. It is the largest unplanned risk in most couples' retirements.
The fix for the second one
Both of you should be able to state where the accounts are, roughly what is in them, who the beneficiaries are, and what the plan is. Not manage it — state it.
Write it down in one document both of you can find. That single page does more for the surviving partner than any allocation decision, and it is the same principle that applies to the whole of a household's money: one person holding all of it is a single point of failure.
Where to put money after the matches
Once both matches are captured, the order for additional retirement saving is reasonably settled and worth following.
Health savings account, if either of you has a qualifying health plan. Frequently the most tax-advantaged account available — contributions reduce taxable income, growth is untaxed, and qualified medical withdrawals are untaxed. Given that healthcare is one of the largest retirement expenses, this is a retirement account that most people treat as a spending account.
Then fill the employer plans, prioritising whichever has better funds and lower fees. Fees compound in exactly the same way returns do, and a difference that looks trivial annually is substantial across thirty years.
Then IRAs for both of you, including a spousal contribution for a non-earning partner. Whether traditional or Roth depends mostly on whether you expect to be in a higher or lower tax bracket later — and holding some of each gives you flexibility to manage taxable income in retirement, which is genuinely valuable.
Then a taxable brokerage account, which has no contribution limit and no early-withdrawal penalty. That accessibility matters if you are planning to retire before traditional retirement age, because it is the money you can spend in the gap years without restriction.
Deciding this as a household rather than as two individuals is the entire point. Two people each optimising their own account will usually produce a worse combined outcome than two people coordinating one.
The annual check that takes an hour
Once a year, five questions.
- Are we both still getting the full employer match?
- What is our combined total, and is it moving in the right direction?
- Is the household allocation still what we intended, across all accounts?
- Are the beneficiary designations correct on every account?
- Has anything changed about when either of us plans to stop?
Question four is the one people skip and it is the one with the most serious consequences — beneficiary forms override your will, and an out-of-date one sends the money somewhere you did not choose.
An hour a year. It does not need to be more than that, provided the contributions are automatic and the allocation is sensible — which is the general pattern for everything in the wider sequence of financial planning as a couple: set it up properly, automate it, then maintain rather than optimise.