Maximize retirement contributions within 2026 limits

Turn your retirement target into a coordinated 2026 contribution plan across employer, HSA, IRA, and self-employed accounts without exceeding shared limits.

Step 8 of 11Stage 4About 10 min

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Lesson outcomes

What you’ll be able to do

1

Identify the 2026 limits and shared caps that apply across household retirement accounts.

2

Allocate an annual deposit target through employer matches, HSA, IRAs, and workplace or self-employed plans.

3

Recognize potential mega-backdoor Roth capacity and intentional taxable-brokerage overflow.

Chapter 8.1

Understand the step

Start with the principle, then connect it to the numbers and tradeoffs that shape the decision.

The lesson

Step 7 chose the retirement account types. Step 8 turns the retirement target into a coordinated annual deposit plan. The goal is not to chase every maximum blindly; it is to place each available dollar intentionally, capture employer money, respect shared limits, and automate the remaining 2026 contributions.

Blueprint order

Where this step fits

Step 7 chooses the tax-advantaged account jobs. Step 8 coordinates household contribution limits, employer plans, and self-employed options around the Step 3 retirement target. Step 9 directs true excess toward flexible taxable investing.

Start with purpose

Use the retirement target before using the limits

Bring the annual savings requirement connected to the Step 3 retirement number. Confirm the starter and full emergency reserves, high-interest debt work, and near-term obligations remain stable. A legal maximum is only account capacity; it does not answer how much this household should save or whether cash flow can support it.

  • Protect every affordable Step 2 employer match.
  • Use raises, completed savings transfers, and eliminated debt payments before lifestyle inflation absorbs them.
  • Compare the total contribution plan with the retirement target and the next incomplete Blueprint priority.
2026 limit map

Separate employee deferrals from total plan additions

For 2026, the standard employee deferral limit for a 401(k), 403(b), TSP, and governmental 457(b) is $24,500. Plans may permit an $8,000 catch-up beginning at age 50 or an $11,250 catch-up for someone who is age 60 through 63 during 2026. Traditional and Roth employee deferrals use the same employee limit; choosing both does not double it.

  • The defined-contribution annual-additions ceiling is generally the lesser of $72,000 or 100% of eligible compensation for the plan.
  • Employee base deferrals, employer matches, nonelective contributions, voluntary after-tax contributions, and forfeitures generally count toward annual additions; eligible catch-up contributions generally do not.
  • No more than $360,000 of compensation can be considered for certain 2026 contribution calculations.
  • Employer contributions generally do not reduce the employee's $24,500 deferral limit, but they can reduce remaining $72,000 plan capacity.
Shared limits

One person can have several plans without receiving several personal limits

Employee deferrals to 401(k), 403(b), TSP, SIMPLE, and Solo 401(k) arrangements generally aggregate by person. A governmental 457(b) has a separate limit, although employee and applicable employer contributions share that 457(b) limit. Each spouse has their own individual employee-deferral capacity.

  • Traditional and Roth IRAs share one $7,500 per-person 2026 limit, or $8,600 at age 50 and older.
  • The IRA limit is also constrained by taxable compensation, and Step 7's Roth MAGI rules still apply.
  • Employee and employer HSA contributions share the $4,400 self-only or $8,750 family 2026 limit. Eligible age-55 catch-ups belong in the eligible spouse's own HSA.
  • A family HSA base limit is shared by the household; it is not multiplied because both spouses have HSA accounts.
Household order

Allocate matches first, then move through the tax-advantaged layers

The calculator follows a decision-first order: capture every affordable match, fill an eligible HSA, fund each IRA path selected in Step 7, use remaining regular workplace or self-employed capacity, evaluate confirmed mega-backdoor capacity, and identify any remaining amount for the Step 9 taxable-brokerage decision.

  • The Roth preference does not override direct-contribution phaseouts, pro-rata exposure, or an unavailable Traditional IRA deduction.
  • When the annual budget cannot capture every match, direct dollars toward the highest match returned per employee dollar while checking each plan's actual tiered formula.
  • For married households, coordinate both spouses' plan quality, fees, investment menus, tax treatments, and payroll deadlines rather than defaulting every dollar to one spouse's plan.
Self-employment

A business owner can contribute in employee and employer roles

A Solo 401(k) can accept employee deferrals and an employer contribution, but the owner's employee deferral is still shared with other 401(k), 403(b), TSP, and applicable salary-reduction plans. A SEP IRA generally receives employer contributions rather than elective employee deferrals. A SIMPLE IRA uses its own lower plan limit while still interacting with the person's aggregate deferral rules.

  • The 2026 SEP ceiling is $72,000, also subject to compensation and contribution-rate rules.
  • The standard 2026 SIMPLE employee limit is $17,000; certain qualifying plans may use an enhanced $18,100 limit, with separate catch-up rules.
  • Gross business receipts are not eligible compensation. Net earnings, entity structure, self-employment tax adjustments, plan terms, and employee obligations can change the allowable employer contribution.
  • Use the IRS worksheet, plan provider, or tax professional to calculate employer capacity before entering it in the allocator.
Advanced workplace strategy

A mega backdoor Roth requires two separate plan features

A Roth 401(k) contribution is a normal elective deferral and remains inside the personal employee limit. A mega backdoor Roth instead begins with voluntary after-tax employee contributions beyond that limit, then moves those dollars through an in-plan Roth conversion or an eligible in-service distribution to a Roth IRA. It is also separate from Step 7's backdoor Roth IRA strategy.

  • High income does not create access. The plan must accept voluntary after-tax contributions and provide a usable Roth conversion path.
  • Capacity is generally the lesser of $72,000 or 100% of eligible compensation, minus base employee deferrals, employer contributions, other annual additions, and after-tax contributions already made.
  • Earnings before conversion may be taxable, and plan fees, conversion frequency, nondiscrimination testing, and operational limits can reduce the practical amount.
  • For 2026, certain age-50 catch-up contributors with more than $150,000 of prior-year wages from the plan sponsor may need those catch-up dollars designated as Roth. Verify the plan's implementation and the wage definition.
Execution

Convert the annual plan into payroll and recurring transfers

Subtract amounts already contributed, divide the remaining allocation by the remaining payroll or transfer periods, and schedule each election. Front-loading can increase time invested, but a plan that matches each paycheck without a true-up can leave employer money unclaimed after contributions stop early.

  • Confirm whether bonuses use the same election and match formula.
  • Review contributions after compensation changes, job changes, and plan-provider updates.
  • Stop or redirect transfers when a limit is reached rather than allowing excess contributions to create a correction problem.
  • When useful tax-advantaged capacity is full, preserve the habit and direct true excess to the Step 9 taxable-brokerage decision.

Know the math

Annual deposit target

Annual deposit target = household gross earned income x chosen retirement savings percentage

Use a dollar target instead when the retirement plan calls for a specific annual amount.

Remaining contribution election

Per-period contribution = (annual account target - contributed year to date) / remaining contribution periods

Payroll rounding and plan deadlines can change the final election, so review the last pay period before year-end.

Shared employee-deferral capacity

Remaining shared deferral = personal 2026 limit - employee deferrals already made across covered plans

Traditional and Roth designations do not create separate employee limits, and changing employers does not reset the personal limit.

Mega-backdoor Roth capacity

Capacity = lesser of $72,000 or 100% of eligible compensation - base employee deferrals - employer contributions - other annual additions

Eligible catch-up contributions generally sit outside the $72,000 annual-additions calculation. Actual plan capacity may be lower.

Simplified current tax reduction

Estimated tax reduction = federal tax before pre-tax contributions - federal tax after contributions + state-eligible pre-tax dollars x entered state marginal rate

This estimate does not model credits, local taxes, payroll taxes, AMT, QBI, itemized deductions, or every state rule.

Chapter 8.2

See it in practice

Turn the idea into a concrete example, then use the product-aligned visual to make the pattern easier to recognize.

Interactive lesson

Build the 2026 household contribution plan
2026 contribution allocator

Enter household income, account access, match formulas, year-to-date contributions, HSA and IRA choices, and confirmed mega-backdoor features. The allocator places the annual deposit target in Blueprint order and shows each 2026 limit in progress.

Household target

Define the dollars available for 2026

This is a deposit target. Employer money from an unrelated employer is added above it; current-year tax savings are shown separately.

Account access

Add workplace and self-employed plans

Match inputs use the Step 2 single-rate formula. For tiered matches, confirm the equivalent full-match requirement in the plan document.

401(k)You
%
%
Advanced plan details

Use these fields when you already contributed this year, have multiple plans, or confirmed mega-backdoor Roth features.

HSA eligibility

Add an HSA only when eligible

Eligibility generally requires qualifying high-deductible health coverage. Employee and employer deposits share the annual limit.

The state estimate does not deduct personal HSA contributions for this state.

IRA access

Your IRA

The calculator estimates Roth eligibility from filing status, gross income, and modeled pre-tax contributions. The backdoor confirmation appears only when the direct Roth path may be reduced or unavailable.

Live 2026 allocation

Put each available dollar in order

Total deposited including employer
Annual deposit target
Already contributed
Per remaining period
Employer money
Estimated current tax reduction

Personal pre-tax

Roth

HSA including employer

After-tax → Roth

Step 9 overflow

Full direct Roth eligibility

The entered 2026 MAGI is at or below the phaseout starting point for this filing status.

Estimated MAGI Combined marginal estimate 33.3%

Estimated from the household income, filing status, selected state, and modeled pre-tax contributions: 24% federal plus 9.30% state. Local taxes and state-specific deductions are not modeled.

Your account

Per remaining period

Already contributed

Add from here

Employer amount

$4,500.00 projected employer contribution

Household account

Per remaining period

Already contributed

Add from here

Employee and employer HSA deposits share this coverage-based limit.

Your account

Per remaining period

Already contributed

Add from here

Confirm payroll and provider deadlines before changing contributions.

These tools are provided for educational purposes only and do not constitute financial, investment, tax, legal, or planning advice. Results are estimates based on the assumptions you provide, and actual outcomes may differ. Past performance is not indicative of future returns. Consider consulting a qualified professional before making financial decisions.

The model uses 2026 federal limits, the standard deduction, a representative state marginal-rate estimate, fixed single-rate matches, and the information entered above. It does not model credits, AMT, local taxes, payroll taxes, QBI, every state deduction or surtax, nondiscrimination testing, every catch-up exception, or plan-specific deadlines. Verify limits and elections with current IRS guidance, plan administrators, and qualified professionals.

Worked example

$30,000 single-earner contribution plan

A 35-year-old earns $150,000, has a Traditional 401(k) matching 50% up to a 3% employer contribution, qualifies for a self-only HSA, remains directly eligible for a Roth IRA, and has $30,000 available to deposit.

Contributing $9,000 first captures the $4,500 match. The plan then allocates $4,400 to the HSA, $7,500 to the Roth IRA, and the remaining $9,100 back to the 401(k). Personal deposits total $30,000, while $34,500 reaches the accounts after employer money.

Key takeaways

  • Start with the retirement target; a contribution limit is capacity, not a personalized savings requirement.
  • Coordinate shared employee, IRA, HSA, employer, and annual-additions limits across the household before changing payroll.
  • A mega backdoor Roth requires voluntary after-tax contributions plus a real conversion path; high income alone is not enough.
  • Convert the remaining annual amount into automated payroll and account transfers, then send only true excess to Step 9.
Worked example

Two spouses, individual and household limits

Both spouses have workplace plans and IRAs, while the household uses family HSA coverage.

Each spouse evaluates their own workplace and IRA limit. The $8,750 family HSA base limit is coordinated across both spouses and includes employer deposits rather than becoming $8,750 per spouse.

Worked example

$35,000 of potential mega-backdoor capacity

An employee has $250,000 of eligible compensation, contributes the $24,500 base employee deferral, and expects $12,500 of employer contributions. The plan confirms voluntary after-tax contributions and an in-plan Roth conversion path.

$72,000 - $24,500 - $12,500 leaves $35,000 of simplified annual-additions capacity. Other additions, plan restrictions, testing, and compensation definitions must still be checked before contributing.

Worked example

Solo 401(k) after a workplace deferral

A business owner already deferred $10,000 into a 401(k) through a W-2 job and also has a Solo 401(k).

The Solo 401(k) does not create a second $24,500 employee limit. The remaining employee capacity is coordinated across both plans, while a separate business employer contribution uses plan-eligible compensation and the self-employed calculation.

Chapter 8.3

Make the decision

Use the Blueprint order of operations and the Decision Framework to choose a next move that fits your household.

Think through the tradeoff

Maximize the plan, not just an account

Start with the amount the retirement target requires, then coordinate it across the household. A contribution limit is capacity, not proof that using every dollar of it is automatically the right decision.

Every dollar still has a job

Capture employer money, use the tax-advantaged accounts selected in Step 7, and preserve the Blueprint foundation. Only true excess moves toward a mega backdoor Roth or the taxable investing work in Step 9.

Plan documents control execution

IRS limits describe the tax-law ceiling, while the employer plan can impose lower limits, payroll windows, testing restrictions, and different match timing. Verify the final election with the plan administrator.

Chapter 8.4

Take the next step

Go deeper only where it helps the decision, then continue through the Blueprint or turn the lesson into your roadmap.

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Step 2: Employer Match

Confirm the match formula and contribution required for the full employer contribution.

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Step 3: Retirement Number

Reconnect annual contributions to the retirement target they are meant to fund.

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Step 7: HSA and IRA Decisions

Review HSA priority, Roth eligibility, backdoor Roth rules, and tax-bucket tradeoffs.

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Step 9: Taxable Brokerage

Give dollars beyond useful tax-advantaged capacity an intentional next destination.

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Build My Money Plan

Connect contribution targets, account balances, and the retirement projection in one roadmap.

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Turn this lesson into your roadmap

Build a free My Money Plan so this Blueprint step becomes a practical action plan for your household.

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