The Match Cliff

Alex Rivera, Wealth Architect at The Wealth Grid

System Drop | August 31, 2026 | The Wealth Grid

A friend of mine called me in December two years ago, pleased with himself. He had maxed his 401k by the end of October. Ahead of schedule, money in the market earlier, felt like winning.

I asked him one question. Does your plan have a true up.

He did not know what that was. We pulled his summary plan description, buried three clicks deep in a portal he logs into twice a year. The answer was no. His employer matched per paycheck, and he had stopped contributing on October 17 when he hit the annual limit. From that day through December 31 his contributions were zero, which meant his match was zero too, because there is nothing to match a percentage of.

Five pay periods. About 1,400 dollars of employer money that never got deposited. Not delayed, not deferred. Gone, because of a pacing decision he made in January without knowing it was a decision.

Today is August 31. You have eight or nine pay periods left in 2026. Enough runway to fix this if it is broken, and the last month where the fix is easy rather than partial.

Almost everyone believes the employer match is an annual arrangement. You put in six percent over the year, they match some formula on it over the year, everybody settles up.

That is not how most payroll systems do it.

The overwhelming majority calculate the match per pay period, in isolation. Each paycheck is its own little universe. You contributed this much, the formula says the employer owes this much, done. The system never looks at the year as a whole.

Which produces a consequence almost nobody thinks through. A paycheck where you contribute nothing earns a match of nothing. It does not matter that you already hit the annual limit, or that on an annual basis you deferred far more than the formula required. The system is not asking an annual question.

Run the numbers. Salary of 130,000 dollars, paid biweekly, twenty six checks of roughly 5,000 dollars. Employer matches dollar for dollar up to six percent, so 300 dollars per check and 7,800 dollars for the year.

Person A defers nine percent every check, all year, and hits 24,500 dollars right around the last paycheck in December. She contributed on all twenty six checks, so she collected the full 7,800 dollars.

Person B defers thirty percent starting in January because he wants the money working early. He crosses 24,500 dollars in mid July on check sixteen. Checks seventeen through twenty six have no employee contribution, so they generate no match. Ten checks at 300 dollars. Three thousand dollars of employer money he never receives.

Same salary. Same total deferred. Same investments. One of them is 3,000 dollars poorer for the year because of a percentage typed into a portal.

And here is the part that stings. The extra market exposure Person B bought by front loading is worth something, but it is worth a few months of expected return on a partial balance. Call it a couple hundred dollars in a normal year. He paid 3,000 dollars for it.

Some plans fix this automatically, with a feature called a true up. After the plan year closes, the administrator re-runs the match formula against your full year compensation and deferrals, ignoring timing entirely. If the annual calculation says you were owed 7,800 dollars and the per paycheck calculation delivered 4,800 dollars, the plan deposits the difference, usually in the first quarter of the following year.

With a true up, front loading is completely safe. Without one, it is expensive.

One thing worth knowing. It is a plan level provision, not an individual accommodation. An employer cannot offer it to the executive who front loads and withhold it from everyone else. It applies to all eligible participants or to none, so this is not something you negotiate, it is something you look up. And employers are not required to offer it, because every dollar of true up is a dollar the plan would otherwise have kept.

So the question reduces to one email. Send this to benefits today:

Does our 401k plan include an annual true up on the employer match, or is the match calculated on a per pay period basis only? I would like the answer in writing along with the relevant section of the summary plan description.

Ask for it in writing. Benefits staff turn over and verbal answers evaporate.

If you would rather not wait on a human, the answer is in your summary plan description under matching contributions. That document is written to satisfy lawyers rather than to be read. I drop the PDF into Galaxy.ai and ask three plain questions: is the match computed per pay period or annually, does the plan provide a true up, and what is the exact formula including caps. Ninety seconds, and more reliable than skimming forty pages for a phrase you might not recognize.

Say the answer comes back no true up. Here is how you fix it with four months left.

The 2026 elective deferral limit is 24,500 dollars. At fifty or older you add a catch up of 8,000 dollars. If you turn sixty through sixty three during 2026 you get the enhanced catch up of 11,250 dollars instead, a four year window that then drops back down.

Pull your most recent pay stub and find two numbers. Year to date employee contribution, and number of remaining pay periods. Then:

Remaining room equals your annual limit minus year to date contributions.

Per check target equals remaining room divided by remaining pay periods.

New deferral percentage equals per check target divided by gross pay per check.

Whatever that percentage is, that is your setting for the rest of the year, and the point is that it lands you exactly on the limit on the final check rather than three checks early.

Now the important adjustment. If that percentage comes out below your match threshold, do not use it. If your plan matches up to six percent and the math says four percent lands perfectly, you have already contributed too much too fast, and the correct move is to defer at least six percent on every remaining check even though it means stopping short of the annual maximum.

Read that again, because it is counterintuitive and it is the whole lesson. Capturing 300 dollars of employer money on a check beats squeezing your own last 200 dollars into a tax deferred account. The match is an instant one hundred percent return. Nothing else in your financial life pays that.

The order of operations is always the same. Full match first, everything else second.

One more thing to check while you are in there, because 2026 is the first year it applies and a lot of people are going to find out in March when their W-2 does not look right.

If you are fifty or older and your FICA wages from this employer in 2025 exceeded 150,000 dollars, every dollar of your catch up contribution in 2026 must go into a Roth source. Not pre tax. This came out of SECURE 2.0 and it took effect January 1 of this year after two years of delay.

Your status is determined entirely by prior year wages from that specific employer. Not household income, not total earnings across jobs, not this year's number. Last year, that employer, above 150,000 dollars. And it applies only to the catch up portion. Your regular 24,500 dollars can still be pre tax, and the employer match is untouched.

And here is the trap. If your plan does not offer a Roth source at all, and you are over the wage threshold, you cannot make a catch up contribution this year. Not as Roth, not as pre tax, not at all. A small number of plans still lack a Roth feature, and their high earners are simply locked out until the plan gets amended.

So the email to benefits should ask two questions, not one. Does the plan have a true up, and does the plan accept Roth catch up contributions for 2026.

If you have already made catch up contributions coded pre tax this year and you are over the threshold, your administrator has to reclassify them before year end. Ask for written confirmation. Do not assume it is handled.

While the plan document is open, check one more line, because it is where the real money is for anyone already maxing out.

The 24,500 dollar figure caps only your own elective deferrals. The total that can land in your 401k from all sources in 2026 is 72,000 dollars, covering your deferrals, the employer match, and anything else the plan contributes.

Do the subtraction. You put in 24,500 dollars. Your employer matches 7,800 dollars. That is 32,300 dollars against a 72,000 dollar ceiling, which leaves roughly 39,700 dollars of unused space.

Some plans let you fill that space with voluntary after tax contributions, and some let you immediately convert those dollars into Roth. That combination is the mega backdoor, the single largest tax advantaged opportunity available to a normal W-2 employee.

It requires two plan features. The plan has to accept voluntary after tax contributions, which is a separate money source from Roth contributions. And it has to permit either in plan Roth conversions or in service withdrawals, so you can move the money before it generates much taxable growth. Plenty of plans have one and not the other, and almost none advertise either.

Add it to the email. Does the plan accept voluntary after tax contributions, and does it permit in plan Roth conversion of those amounts. Three questions in one message. If the answer to the third is yes, that email is worth more than most of what you will read about money this year.

Minutes 0 to 10. Send the email. Three questions, in writing, to benefits. True up, Roth catch up availability, voluntary after tax and conversion. Do this first because it runs in the background while you do everything else.

Minutes 10 to 20. Pull your numbers. Most recent pay stub. Year to date employee contribution, gross pay per check, checks remaining. Count them against an actual pay calendar rather than estimating, because a December 31 check that lands on January 2 belongs to next year and people get this wrong constantly.

Minutes 20 to 30. Run the pacing math. Remaining room divided by remaining checks gives the per check target. Divide by gross pay for the percentage. Compare it to your match threshold and take the higher of the two. Set it in the portal today, because most payroll systems need a cycle or two to apply a change.

Minutes 30 to 45. Build the ledger so this never happens again. The reason this problem persists is that nobody watches the pacing during the year. Contribution rates get set in January and reviewed in never.

Mine runs on Make.com. Every pay period the scenario reads the deposit confirmation, appends date and amount and running total to a sheet, projects the year end figure at the current rate, and messages me only if that projection lands more than one pay period early or leaves more than 500 dollars unused. Silent when correct, loud when wrong. It took an evening and has caught two rate drift problems since, both after raises.

That last point deserves its own sentence. A raise changes your dollar contribution without changing your percentage, which means every raise quietly re-paces your entire year. If you got one in 2026 and have not recalculated, your projection is wrong right now.

The bonus check. Many plans apply your regular deferral percentage to bonus payments, so a large bonus can eat an enormous slice of your annual limit in one shot and push you over the cliff months early. Some plans let you set a separate bonus deferral rate. If yours does, set it deliberately. If not, model the bonus into your pacing before it lands.

The mid year job change. The 24,500 dollar limit is yours, not your employer's, and it follows you across jobs in the same calendar year. Your new employer's payroll has no idea what you contributed at the old one and will happily let you blow through the limit. Excess deferrals have to be corrected before the filing deadline or you get taxed twice on the same dollars. If you changed jobs in 2026, add the two year to date figures together right now.

The vesting schedule. All of this assumes the match is actually yours. If you are inside a vesting cliff, the unvested portion is not money, it is a conditional promise. Find your vesting schedule and service date before you decide anything about timing an exit. Leaving three weeks before a vesting anniversary is one of the most expensive calendar mistakes available to a normal employee.

I built the whole thing as one file. It has the pacing calculator with the remaining check math laid in, the exact three question email to send benefits, a decision tree for when the pacing math conflicts with your match threshold, the Roth catch up eligibility test, the mega backdoor feature checklist, and a bonus deferral model.

Reply with the word MATCH and I will send you The Match Cliff Worksheet, free. No form, no link to chase. Reply MATCH and it shows up.

The Grid Inner Circle has been running a few weeks and it has turned into the part of this I look forward to most. It is where the builds get taken apart in public, where people post the version they actually shipped instead of the version I described, and where I answer questions too specific for a newsletter.

Twenty nine dollars a month. Or 499 dollars once, for founding lifetime access, which stays 499 dollars forever regardless of what the monthly price becomes later.

Reply GRID and I will send you the details.

What gets me about the match cliff is that it is not a hard problem. No forecast, no market view, no risk tolerance question, no tradeoff to agonize over. It is arithmetic, performed once, on numbers printed on a document you already have.

It persists because the contribution rate is a default. Somebody typed a percentage into a form during their first week at a job, while also picking a health plan and finding the bathroom, and that number has been running ever since without a review. It survived raises, bonuses, and job changes, silently deciding whether thousands of dollars of employer money arrived.

Nobody is coming to check it. Your employer has no obligation to warn you and a modest financial interest in staying quiet. Your recordkeeper shows you a balance, not a pacing analysis.

Go look at it. Forty five minutes, and the downside is learning everything was already fine.

Wednesday we go after the same problem in a different room. Open enrollment opens in about six weeks, most people will spend eleven minutes on it, and the majority will simply re-elect last year's choices because that is what the portal defaults to. We build the file now, in September, so that when the window opens you are choosing instead of confirming.

Alex Rivera, Wealth Architect at The Wealth Grid

Wealth is a system, not a guess.