The self-employment tax you pay every year isn’t just a tax. Its Social Security half buys you a future benefit, and the amount you earn on paper, your net profit, decides both what you pay now and what you get later. For 2026 you earn one Social Security credit for each $1,890 of net earnings, up to four credits a year, and you need 40 credits to qualify for retirement benefits.
Most guides to self-employment tax explain what you owe and stop there. This one covers the other side: how credits work, what the benefit formula does with your earnings, and the odd consequence for freelancers that every business deduction also lowers the earnings figure on your Social Security record. For the tax itself, see our self-employment tax guide.
How you earn credits
SSA says that if you’re self-employed you earn credits the same way employees do: one credit for each $1,890 of net earnings in 2026, no more than four a year. It’s net earnings, which SSA describes as gross earnings from your business minus allowable business deductions and depreciation. On your return that is the Schedule SE figure, which is 92.35% of your Schedule C net profit, so four credits need $7,560 of net earnings, or about $8,186 of net profit. You need 40 credits for retirement benefits, and the credits decide whether you’re eligible while your earnings record sets the size of the check.
| Net earnings in 2026 (92.35% of net profit) | Credits earned |
|---|---|
| Under $1,890 | 0 |
| $1,890 to $3,779 | 1 |
| $3,780 to $5,669 | 2 |
| $5,670 to $7,559 | 3 |
| $7,560 or more | 4 |
Under $1,890
- Credits earned
- 0
$1,890 to $3,779
- Credits earned
- 1
$3,780 to $5,669
- Credits earned
- 2
$5,670 to $7,559
- Credits earned
- 3
$7,560 or more
- Credits earned
- 4
Source: SSA, 2026 How You Earn Credits and the Quarter of Coverage page: $1,890 per credit, four credits maximum. The ranges are the multiples of $1,890. SSA also says self-employed people usually need at least $400 of net earnings before they can earn credits for a year, and an optional method can produce credits in some cases.
The part that surprises people is that credits track net earnings, which come from your profit rather than your revenue. A freelancer who deducts the profit down to $5,000 has $4,618 of net earnings and earns two credits that year, not four, and a slow year with $1,500 of profit earns none. A good year still earns four, and 10 of those is all it takes. For most people the 40 credits aren’t the hard part, since the credits come from employment too. SSA’s quarter of coverage page now lists $1,970 as the amount for 2027, up from $1,890 in 2026, and repeats that no one can earn more than four a year.
If your net earnings fall below $400, SSA describes an optional method for non-farm income. It applies only if your net non-farm income is under 72.189% of your gross non-farm income and under a dollar limit, you had at least $400 of net earnings in two of the prior three years, and you have not used it five times already. It can only raise the net earnings you report, and the SSA Handbook says the most you can report with it equals the amount of earnings needed for four credits, which is $7,560 in 2026. SSA’s 2026 fact sheet prints a different dollar figure for the non-farm net income test, $7,840, which matches the 2025 credit amount divided by 0.9235 rather than 2026’s, so we don’t use it. Check the current Schedule SE instructions for the exact 2026 limit before you try the method.
Where the benefit amount comes from
SSA bases the retirement benefit on your highest 35 years of earnings. Each year’s earnings are indexed to reflect wage growth, SSA takes the 35 best, adds them up, and divides by 420 months to get your average indexed monthly earnings. If you have fewer than 35 years of earnings, the missing years count as zeros. A formula then turns that average into your basic benefit using 90 percent of the first slice, 32 percent of the second and 15 percent of the third. The dollar cutoffs between slices, called bend points, depend on the year you turn 62. For a worker who turns 62 in 2026 they are $1,286 and $7,749 a month.
What an extra $1,000 of profit adds
The question for a freelancer is this: if a deduction lowers your net profit by $1,000 every year for 35 years, what does it cost you in benefit, and what does the Social Security tax on that $1,000 cost?
We ran two cases through SSA’s formula and bend points for a worker turning 62 in 2026. One has an average indexed monthly earnings of $1,000, which sits in the 90% slice, and one has $4,000, which sits in the 32% slice. The extra profit is $1,000 in each of 35 years. SSA records 92.35% of it, $923.50 a year, which adds $32,322.50 over 420 months, or $76.96 to the monthly average.
| Average monthly earnings | Basic benefit now | With the extra profit | Added per month | Added per year |
|---|---|---|---|---|
| $1,000 | $900.00 | $969.26 | $69.26 | $831 |
| $4,000 | $2,025.88 | $2,050.51 | $24.63 | $296 |
$1,000
- Basic benefit now
- $900.00
- With the extra profit
- $969.26
- Added per month
- $69.26
- Added per year
- $831
$4,000
- Basic benefit now
- $2,025.88
- With the extra profit
- $2,050.51
- Added per month
- $24.63
- Added per year
- $296
Our arithmetic using SSA's 90%/32%/15% formula and the 2026 bend points of $1,286 and $7,749, before the rounding SSA applies to the benefit. It assumes the extra profit is recorded at 92.35%, every year is indexed the same, benefits start at full retirement age, and ignores cost-of-living adjustments, other income and earlier or later claiming.
Against that, the Social Security part of self-employment tax on $1,000 of net profit is 12.4% of 92.35% of the profit, or $114.51 a year, which is $4,008 over 35 years. At the $4,000 average, the added benefit of $296 a year takes about 13.6 years to repay that. At the $1,000 average, $831 a year, it takes about 4.8. The Medicare part isn’t included, since it doesn’t add to the benefit.
Two things follow, and neither is advice to change what you deduct. First, the lower your lifetime earnings, the more each extra dollar of net profit adds to your benefit, because the formula is weighted that way. Second, a real business expense is a real expense. You’d never pay a cost just to raise your Social Security record. The point is only that a lower profit reduces the benefit you build as well as the tax you pay, so a freelancer who tries to keep profit near zero for years is trading a current saving for a smaller check. SSA’s own guidance is that working more years can replace low or zero years in the calculation.
When you claim changes the check
Everything above produces the basic benefit, which SSA calls the primary insurance amount, the amount payable at full retirement age. Claiming earlier or later changes it. SSA’s full retirement age depends on your birth year:
| Year of birth | Full retirement age |
|---|---|
| 1943 to 1954 | 66 |
| 1955 | 66 and 2 months |
| 1956 | 66 and 4 months |
| 1957 | 66 and 6 months |
| 1958 | 66 and 8 months |
| 1959 | 66 and 10 months |
| 1960 and later | 67 |
1943 to 1954
- Full retirement age
- 66
1955
- Full retirement age
- 66 and 2 months
1956
- Full retirement age
- 66 and 4 months
1957
- Full retirement age
- 66 and 6 months
1958
- Full retirement age
- 66 and 8 months
1959
- Full retirement age
- 66 and 10 months
1960 and later
- Full retirement age
- 67
Source: SSA, Retirement Benefits (Publication 05-10035, January 2026). People born on January 1 refer to the previous year.
SSA says that if you turn 62 in 2026 your benefit would be about 30% lower than at your full retirement age of 67, and that it adds 8% for each full year you delay past full retirement age, up to age 70. Using the $4,000 average from the table above, which is the case with a $2,025.88 basic benefit, these round-number approximations give a feel for the spread:
| Claim at | SSA adjustment | Monthly benefit |
|---|---|---|
| 62 | About 30% lower | About $1,418 |
| 67 (full retirement age) | None | $2,025.88 |
| 70 | 8% for each of 3 full years, 24% | About $2,512 |
62
- SSA adjustment
- About 30% lower
- Monthly benefit
- About $1,418
67 (full retirement age)
- SSA adjustment
- None
- Monthly benefit
- $2,025.88
70
- SSA adjustment
- 8% for each of 3 full years, 24%
- Monthly benefit
- About $2,512
Our arithmetic: $2,025.88 x 0.70 and $2,025.88 x 1.24, before the rounding SSA applies and before cost-of-living adjustments. SSA's 30% is stated as about 30%, so treat the age 62 figure as approximate. The $4,000 average is hypothetical.
The claiming age moves the check by far more than a $1,000 change in profit did, which is worth keeping in view when you weigh a deduction against its effect on your record.
Working while you collect
You can keep freelancing and collect. SSA says earnings in or after the month you reach full retirement age won’t reduce your benefit. Before that, it deducts $1 for each $2 you earn above an annual limit, and in the year you reach full retirement age $1 for each $3 above a higher limit. The publication we used does not give the dollar limit or spell out how the test counts self-employed profit, so we left both out. Check SSA’s guidance on how work affects benefits before claiming early while your business is still running.
If you also have a W-2 job
Wages and self-employment earnings share the same yearly maximum, $184,500 in 2026. SSA says the tax on wages is paid first. Its example: with $100,000 in wages and $85,500 of net business earnings, your employer withholds 7.65% on the wages, and you pay 15.3% on the first $84,500 of self-employment earnings and only 2.9% Medicare on the remaining $1,000. SSA also notes a 0.9% additional Medicare tax when earned income is more than $200,000 ($250,000 for married couples filing jointly). Our quarterly estimated tax guide shows how to pay it through the year.
Taxes on the benefit, and Medicare
SSA says about 40% of people who receive benefits pay income tax on them. For a single filer with combined income between $25,000 and $34,000, up to 50% of benefits may be taxable, and above $34,000 up to 85%. For a joint return the bands are $32,000 to $44,000 and above $44,000. Combined income is adjusted gross income plus nontaxable interest plus half the benefits. SSA also notes you can ask for tax withholding from your benefit, which may be easier than quarterly estimated payments.
If you have an HSA, SSA says you can’t contribute once Medicare coverage begins and should stop contributing at least six months before you apply. Our HSA guide for the self-employed covers the contribution rules before that point.
The maximum and a Solo 401(k)
Social Security tax applies only up to a yearly cap, $184,500 in 2026, and earnings above it don’t add credits or benefits. The cap rises to $192,300 for 2027, according to SSA’s contribution and benefit base table. Most freelancers are far below it.
A Solo 401(k) or SEP IRA contribution doesn’t lower your Social Security earnings, because self-employment tax is figured on net profit before the contribution. Our guide on whether a Solo 401(k) reduces self-employment tax shows the arithmetic. That’s another way retirement contributions differ from other deductions. They lower income tax without lowering the figure SSA records.
Check your record
SSA keeps a record of your earnings, and your my Social Security account shows it. Because self-employed workers report their earnings to the IRS, your filed returns are what SSA relies on. If something’s wrong, SSA says you ordinarily cannot correct your earnings after 3 years, 3 months and 15 days from the end of the taxable year, with exceptions that include confirming your record against tax returns filed with the IRS. For 2023, for example, the ordinary window runs to April 15, 2027. Filing on time keeps your record accurate even in a year you can’t pay, which our guide on what to do when you can’t pay covers.
Note
Your Social Security benefit also depends on the age you claim, and the reduction for claiming early and the credit for delaying aren’t in this guide. Use your my Social Security account for an estimate based on your own earnings record.
If your income swings, the way you save matters too. The irregular income retirement guide covers building your own savings on top of Social Security, and the set-aside guide covers putting the tax aside, including the self-employment tax.
How we got these figures
The credit amount, the four-credit maximum, the 40-credit requirement, the net earnings definition, the $400 floor and the optional method come from SSA’s 2026 credits and self-employed publications and its quarter of coverage page. The 2026 taxable maximum comes from SSA’s FAQ, and the 2027 base of $192,300 from SSA’s contribution and benefit base table, which we checked on November 1, 2026. The 35-year averaging, indexing, the 90, 32 and 15 percent formula and the zeros for missing years come from SSA’s benefit computation pages, and the 2026 bend points of $1,286 and $7,749 from SSA’s bend points table, which defines the year as the year a worker turns 62. The correction window and its exceptions come from SSA’s earnings record FAQ. The 2027 credit amount, the optional method details, the wage and self-employment example, the Medicare surtax, the full retirement age table, the 30% and 8% adjustments, the work limits, the benefit taxation bands, the HSA and Medicare rule and the 2027 bend points come from SSA’s quarter of coverage page, its self-employed fact sheet, its Retirement Benefits booklet and its benefit amounts page. The dollar examples are our own arithmetic using those figures, and they simplify. We opened these on October 14, 2026, and some SSA pages only through a scraping service because SSA blocks direct downloads. The claiming-age table is our arithmetic. For how we choose sources, see How We Research.
This is general information, not retirement or tax advice. Your own benefit depends on your full earnings record and claiming age, so use your my Social Security account and a qualified professional for planning.
