How Social Security Fits Into Your Retirement Income Plan

A $3,000 monthly Social Security benefit leaves a substantial gap in an $8,000 household budget. For a CPA practice owner, filling that gap may depend on savings, a spouse's income, and payments from a practice sale. Those resources may become available at different times, which makes the claiming decision part of the transition out of work.

Waiting can increase your monthly benefit, but it also leaves more expenses for other resources to cover in the meantime. The choice becomes clearer when the benefit estimate sits alongside the household's spending and the income available before and after retirement.

Your Retirement Income Gap

The gap begins with spending that reflects how you'll live. Housing, insurance, food, and healthcare create recurring obligations. Annual property taxes and irregular repairs add costs that a monthly bank-statement review can miss. Travel and gifts may offer flexibility, although reducing them could change the retirement you're planning.

Income and expenses also need the same basis of comparison. A gross Social Security estimate overstates the money available for an after-tax spending target when taxes or Medicare premiums reduce what reaches your account. That difference carries through every estimate of the withdrawals you'll need.

The Cost of Waiting

For someone born in 1960 or later, full retirement age is 67. Starting retirement benefits at 62 generally provides 70% of the full-retirement-age amount; waiting until 70 provides 124%, before other adjustments. Delayed retirement credits stop at 70.¹

The estimate also depends on your earnings history. Benefits reflect your highest 35 years of earnings, with zeros included when there are fewer years. An estimate that assumes continued earnings may change if your practice transition happens sooner.² A comparison based on the work you expect to do gives the claiming decision a firmer foundation.

In a hypothetical household spending $8,000 monthly after taxes and healthcare premiums, one spouse's Social Security and a pension provide $3,000 on the same net basis. The remaining $5,000 comes from work, practice proceeds, or savings.

A second benefit providing $2,000 in spendable monthly income would reduce that gap to $3,000. Delaying it for three years requires another $72,000 from other resources, before investment changes, inflation, and tax interactions. The example measures the funding requirement; it doesn't determine which claiming age is preferable.

One Household, Two Funding Paths

While the Second Benefit Is Delayed

$8,000 spending − $3,000 other net income

$5,000 / month

Needed from work, practice proceeds, or savings

With a $2,000 Net Second Benefit

$8,000 spending − $5,000 total net income

$3,000 / month

Needed from work, practice proceeds, or savings

Hypothetical cash-flow example only. All amounts are assumed spendable income after taxes and healthcare premiums. No actual benefit estimate, return assumption, or recommendation is implied. A delayed benefit's eventual amount requires a separate estimate.

Funding the delay from cash leaves less available for emergencies. Retirement account withdrawals may create taxes, while consulting extends work commitments. In exchange, a later claim can provide more monthly income in subsequent years. Health, longevity, remaining savings, and the household's ability to absorb unexpected expenses influence whether that exchange fits.

The result also changes over time. A household may draw more heavily on savings during the waiting period and need smaller withdrawals once the larger benefit begins. Evaluating only the first three years leaves out that later effect. Evaluating only the eventual benefit leaves out the strain on savings before it starts.

Practice Proceeds and the Earnings Test

A practice valuation doesn't establish when money will reach your household. The usefulness of practice equity in your retirement income plan depends on the closing payment, installment schedule, and conditions attached to later payments. Proceeds tied to collections or continued involvement carry uncertainty that a fixed monthly budget can't absorb automatically.

If an installment arrives late, savings may have to cover both the missing payment and the planned delay in Social Security. A cash reserve already committed to living expenses offers less protection against that disruption. This overlap can make an earlier claim more appealing, despite a lower monthly benefit.

Continued work can also affect benefits claimed before full retirement age. In 2026, someone below full retirement age throughout the year has $1 withheld for every $2 of earnings above $24,480. A different limit applies in the year full retirement age is reached; the test ends beginning with the month you reach full retirement age.³

The test generally counts wages and net self-employment earnings, rather than pensions or investment income. At full retirement age, benefits are recalculated to credit months affected by withholding.³ The character of consulting payments and sale proceeds therefore affects how much income is available during the transition.

Taxes and Medicare Premiums

Social Security's federal tax calculation generally combines adjusted gross income excluding Social Security benefits, tax-exempt interest, and half of your benefits. Depending on income and filing status, up to 85% of benefits may enter taxable income. That's the taxable share of the benefit, not an 85% tax rate.⁴

Consequently, an additional retirement account withdrawal can increase both taxable income and the taxable portion of Social Security. A gross withdrawal equal to the spending shortfall may leave too little after taxes. Practice income, withdrawals, and benefits belong in the same tax projection.

Higher-income Medicare beneficiaries may also pay Part B and Part D surcharges, known as IRMAA. These generally use adjusted gross income plus tax-exempt interest from two years earlier, so strong earnings before retirement can affect premiums after work slows.⁵

A qualifying work stoppage or reduction may support a request for a lower surcharge using Form SSA-44.⁶ Until a revised determination is made, the existing premium remains an expense in the household's income plan.

Income for a Surviving Spouse

A married household's income can fall substantially after one spouse dies. Eligible retirement and survivor benefits aren't simply added together; the survivor generally receives the applicable higher payment. Claiming age and eligibility rules affect the amount.⁷

Housing, property taxes, and maintenance may remain substantial while a Social Security payment disappears. Pension income may change as well. The resulting gap can alter how the couple values a larger future benefit, particularly if one spouse could spend many years living alone.

That makes the survivor's budget part of today's claiming decision. A household that can comfortably fund a delay together may face a different result after a death, especially if the same savings must also cover healthcare or home repairs.

A year-by-year projection makes these competing demands visible. If a delayed sale payment forces investment withdrawals during a market decline, the household may enter the later-benefit years with fewer assets than expected. The value of waiting then includes both the larger payment and the cost of reaching it. A plan with room for a late payment or an unexpected expense offers more flexibility than one that requires every assumption to hold.

In Conclusion

A Social Security claiming age fits when the household can support the years before benefits begin and the years that follow. For a practice owner, that judgment depends on the reliability of sale proceeds, the cost of withdrawals, and the income a surviving spouse would retain.

A review with a CPA Retirement Solutions retirement specialist can bring those pieces into one projection. We can help you evaluate the income gap and coordinate the tax and investment questions with your appropriately licensed professionals.

Sources

1. SSA: Retirement Benefits for Those Born in 1960 or Later; Delayed Retirement.
2. SSA: Your Retirement Age and When You Stop Working.
3. SSA: Receiving Benefits While Working.
4. IRS: Publication 915, Social Security and Equivalent Railroad Retirement Benefits.
5. SSA: Medicare Premiums for Higher-Income Beneficiaries.
6. SSA: Request to Lower an IRMAA.
7. SSA: Survivor Benefit Amounts.