Between roughly $25,000 and $34,000 of provisional income if you file single, or $32,000 and $44,000 married filing jointly, every extra dollar you pull from a Traditional IRA can drag another $0.50 to $1.85 of Social Security into taxable income. That is the tax torpedo. The calculator below runs the exact IRS Publication 915 Worksheet 1 math on your numbers, then shows what a planned gold IRA distribution or Roth conversion would do to the taxable portion of your Social Security. Consult your tax advisor before acting on the output.
Social Security Provisional Income Calculator
Enter your annual Social Security benefit, your other taxable income, and any tax-exempt interest. The tool runs the IRS Publication 915 Worksheet 1 formula and returns the taxable portion of your benefits in dollars and percent. Add a planned IRA distribution or Roth conversion in the what-if row to see how much extra Social Security becomes taxable per dollar withdrawn.
Provisional (combined) income
$0
Other income plus tax-exempt interest plus one-half of Social Security.
Taxable Social Security
$0
0.0% of benefits
Publication 915 Worksheet 1, line 19. Federal cap is 85 percent.
Not taxable
$0
100.0% of benefits
Portion of your Social Security you do not owe federal income tax on this year.
What if you take a gold IRA distribution or Roth conversion this year?
Enter a planned withdrawal above to see the torpedo effect.
Data current as of July 2026. Base amounts ($25,000 single, $32,000 married filing jointly) and adjusted base amounts ($34,000 single, $44,000 married filing jointly) are the statutory thresholds enacted in 1983 and 1993 respectively and are not indexed for inflation. Formula per IRS Publication 915, Worksheet 1. Statutory reference: 26 U.S. Code section 86. Most states do not tax Social Security benefits; the calculator returns federal amounts only. Confirm state treatment with your state department of revenue.
Educational only. Not financial, tax or legal advice.
Educational only. Not financial, tax or legal advice.
The mechanism is IRS Publication 915 Worksheet 1. Provisional income equals your other taxable income plus your tax-exempt interest plus half your Social Security. Below the base amount ($25,000 single, $32,000 MFJ) none of your benefits are federally taxed. In the middle band, 50 cents of every extra dollar of income makes another 50 cents of benefits taxable. Above the adjusted amount ($34,000 single, $44,000 MFJ) each extra dollar makes 85 cents of benefits taxable, until you hit the 85 percent federal cap. Combining those effects with the underlying marginal bracket means a retiree in the 22 percent bracket can face an effective marginal tax rate of 40.7 percent on the very next dollar withdrawn from a Traditional gold IRA. The calculator above uses the exact worksheet formula so you can test the effect of any distribution before you take it. The playbook: pull as much as you can from Traditional accounts (or convert to Roth) between age 59.5 and the year you start Social Security, when the torpedo is off, then live off Roth and taxable accounts during the peak SS years so provisional income stays below the base amount.
What is provisional income and why does it matter for a gold IRA?
Provisional income (the IRS calls it “combined income” in Publication 915) is the number the IRS uses to decide how much of your Social Security check counts as taxable income. The formula is straightforward:
Provisional income = adjusted gross income excluding Social Security + tax-exempt interest + 50 percent of your Social Security benefit
A Traditional gold IRA distribution is ordinary income. It lands on Form 1040 line 4b and it flows straight into the “other taxable income” side of the provisional income formula at 100 cents on the dollar. A Roth conversion works the same way: the fair market value of the metals moved from Traditional to Roth is ordinary income in the conversion year, and it counts fully in provisional income.
This is why, once you claim Social Security, the true tax cost of a gold IRA distribution is almost never the number on your bracket table. In the middle band, each dollar taken from the IRA also pulls another 50 or 85 cents of Social Security into taxable territory, and that extra amount is taxed at your ordinary rate too. A 22 percent bracket becomes a 33 or 40.7 percent effective marginal bracket on the next dollar out. That is not a minor rounding item.
How the IRS Publication 915 formula actually works
Worksheet 1 in Publication 915 is a 19-line worksheet that computes the taxable portion of your benefits as the smaller of two candidates:
- Candidate A: 50 percent of the amount by which provisional income exceeds the base amount (up to the adjusted base), plus 85 percent of the amount above the adjusted base, capped at 50 percent of your benefits in the 50 percent zone.
- Candidate B: 85 percent of your gross benefits.
The taxable portion is the lesser of A and B. In plain terms, that gives three zones:
Zone 1: 0 percent taxable
Your provisional income is at or below the base amount ($25,000 single, $32,000 MFJ). None of your Social Security is federally taxed. This is the design target: the 1983 amendments set these numbers to shield low and middle income retirees.
Zone 2: up to 50 percent taxable
Provisional income is between the base amount and the adjusted amount ($25,000 to $34,000 single, $32,000 to $44,000 MFJ). Each extra dollar of other income adds 50 cents to your taxable Social Security. This is the classic first stage of the torpedo.
Zone 3: up to 85 percent taxable
Provisional income is above the adjusted amount. Each extra dollar adds 85 cents to taxable Social Security, until you hit the hard cap: 85 percent of your gross benefit is the maximum the federal government can ever tax. Once you are fully capped, additional withdrawals are only taxed at your ordinary rate on the withdrawal itself; the torpedo is spent.
Worked example 1: single retiree with a $10,000 gold IRA distribution
Consider Ellen, age 68, single, no state income tax. Her situation:
- Social Security benefit: $30,000 per year
- Other taxable income before the distribution: $20,000 (a small pension)
- Tax-exempt interest: $0
- Planned Traditional gold IRA distribution: $10,000 in cash, taken in mid-year
Baseline (no distribution). Half of Social Security is $15,000. Provisional income is $20,000 + $0 + $15,000 = $35,000. That crosses the $34,000 adjusted base for single by $1,000, so Ellen is in the 85 percent zone.
Walk the worksheet lines 9 through 19: base $25,000 (line 9); line 10 = $35,000 minus $25,000 = $10,000; line 11 = $9,000; line 12 = $10,000 minus $9,000 = $1,000; line 13 = min($10,000, $9,000) = $9,000; line 14 = 50 percent of $9,000 = $4,500; line 15 = min($15,000, $4,500) = $4,500; line 16 = 85 percent of $1,000 = $850; line 17 = $4,500 + $850 = $5,350; line 18 = 85 percent of $30,000 = $25,500; line 19 = min($5,350, $25,500) = $5,350 taxable.
With the $10,000 distribution. Other income becomes $30,000. Provisional income is $30,000 + $15,000 = $45,000. Line 10 = $20,000; line 11 = $9,000; line 12 = $11,000; line 13 = $9,000; line 14 = $4,500; line 15 = $4,500; line 16 = 85 percent of $11,000 = $9,350; line 17 = $13,850; line 18 = $25,500; line 19 = $13,850 taxable.
The $10,000 distribution raised Ellen’s taxable Social Security by $13,850 minus $5,350 = $8,500. Her taxable income went up by $10,000 (the withdrawal itself) plus $8,500 (newly taxable Social Security) = $18,500. That is an 185 percent marginal AGI impact per dollar withdrawn. If she is in the 22 percent federal bracket, the true tax on that $10,000 is $18,500 times 22 percent = $4,070, an effective marginal rate of 40.7 percent on the distribution.
Worked example 2: married filing jointly, sequencing before Social Security
Now consider Bob and Maria, both 63. Bob is still working part time. They plan to claim Social Security at 67 (Bob’s full retirement age). They have a $400,000 Traditional gold IRA that concerns them for future required minimum distribution (RMD) reasons, and they want to convert some to Roth. Their situation today:
- Social Security: $0 (not yet claimed)
- Other taxable income: $60,000 (Bob’s part-time salary plus interest)
- Planned Roth conversion of gold IRA holdings: $30,000
Because they have not claimed Social Security yet, the torpedo is off. The $30,000 conversion adds exactly $30,000 to AGI. In the 12 percent MFJ bracket (0 to $96,950 taxable income for 2026 after the $32,200 standard deduction), the federal tax is $30,000 times 12 percent = $3,600. Effective marginal rate: 12 percent.
Contrast the same $30,000 conversion four years later. They are 67, both claiming Social Security of $35,000 each ($70,000 combined). Other income (part-time salary gone, dividends only): $10,000. Provisional income before the conversion is $10,000 + $35,000 (half of $70,000) = $45,000. That is already in the 85 percent zone ($44,000 MFJ adjusted base). Adding the $30,000 conversion pushes provisional income to $75,000. Running Worksheet 1: line 8 = $75,000; line 9 = $32,000; line 10 = $43,000; line 11 = $12,000; line 12 = $31,000; line 13 = $12,000; line 14 = $6,000; line 15 = min($35,000, $6,000) = $6,000; line 16 = 85 percent of $31,000 = $26,350; line 17 = $32,350; line 18 = 85 percent of $70,000 = $59,500; line 19 = $32,350 taxable. Without the conversion, provisional income of $45,000 would give: line 10 = $13,000; line 12 = $1,000; line 13 = $12,000; line 15 = $6,000; line 16 = $850; line 17 = $6,850 taxable. Delta: $32,350 minus $6,850 = $25,500 of Social Security newly taxable from the $30,000 conversion. AGI goes up by $30,000 + $25,500 = $55,500 from a $30,000 conversion. Effective marginal AGI impact: 185 percent per dollar converted. Same 12 percent bracket, real cost: $6,660 or an effective 22.2 percent marginal rate.
Same $30,000, same headline bracket, same couple. Doing it before Social Security starts costs $3,600. Doing it after costs $6,660. The difference is entirely the torpedo.
The three-zone table: how much of every extra dollar becomes taxable Social Security
Reading this table with the calculator above lets you place your own household on the map.
| Filing status | 0% zone (fully protected) | 50% zone (torpedo band) | 85% zone (post-band, until 85% cap) |
|---|---|---|---|
| Single, HOH, QSS | Provisional income under $25,000 | $25,000 to $34,000 | Above $34,000 |
| Married filing jointly | Under $32,000 | $32,000 to $44,000 | Above $44,000 |
| MFS, lived apart all year | Under $25,000 | $25,000 to $34,000 | Above $34,000 |
| MFS, lived with spouse at any time | None. 85% of benefits are taxable from dollar one. | Not applicable | 85% flat |
The thresholds are statutory. They were set in the 1983 Social Security amendments (the base amount) and expanded in the 1993 Omnibus Budget Reconciliation Act (the adjusted amount). Congress did not index them for inflation, so they cover a shrinking share of retirees every year. In 1984 roughly 8 percent of Social Security recipients paid federal tax on their benefits. By the mid-2020s that figure is around half.
What actually counts in “other taxable income”?
The calculator asks for one number, but it helps to know what belongs there. All of the following add to provisional income at 100 percent:
- Wages, salary, self-employment income (net of business deductions)
- Traditional IRA and 401(k) distributions, including in-kind gold IRA distributions at fair market value on the distribution date
- Roth conversion amounts (fair market value of assets converted)
- Pension and annuity income (taxable portion)
- Interest and dividends (taxable and tax-exempt, though the exempt piece is a separate box in the calculator)
- Capital gains (including gains on gold coins and bullion held outside an IRA, which are taxed at the collectibles rate, up to 28 percent, per IRC section 1(h)(4))
- Rental income (net)
What does not add to provisional income:
- Qualified Roth IRA distributions (post-59.5, five-year rule met)
- Return of your own basis in a Traditional IRA (rare, tracked on Form 8606)
- Loan proceeds (not income; 401(k) loans are not distributions)
- Health Savings Account distributions used for qualified medical expenses
- Gifts and inheritance (not income to the recipient)
Interaction with Required Minimum Distributions
The tax torpedo is not optional once RMDs begin. Under SECURE 2.0, the RMD age is 73 (rising to 75 for those born in 1960 or later). Once you are past your required beginning date, the IRS forces a minimum distribution from every Traditional retirement account you own, computed from the year-end fair market value divided by the Uniform Lifetime Table divisor for your age (Publication 590-B, Appendix B, Table III). For an in-kind gold IRA, the custodian values the metals at the day-of-distribution spot price.
A retiree at age 75 with a $500,000 Traditional gold IRA faces an RMD of $500,000 divided by 24.6 (age 75 divisor) = $20,325. If that retiree is already at $40,000 of provisional income before RMD, the forced $20,325 lands in the 85 percent zone and drags roughly $17,276 of Social Security into taxable income on top. Total AGI impact: $37,601 from a $20,325 forced withdrawal.
This is why the pre-Social Security window (roughly age 59.5 to whenever you claim, most people claim between 62 and 70) is prime real estate for gold IRA distributions and Roth conversions. The torpedo is off, ordinary brackets apply cleanly, and every dollar you shift out of the Traditional bucket now reduces the RMD base that will torpedo your Social Security later. See the companion guide on the Gold IRA RMD calculator for the RMD math, and approaching age 73 with a gold IRA for the operational timing.
Sequencing withdrawals versus conversions before you claim Social Security
Two related but distinct moves can help. Both work best in the age-59.5-to-Social-Security window.
Traditional distributions. Take money out of the Traditional gold IRA (in cash after sale, or in kind at fair market value), pay ordinary income tax at your current bracket, and spend or reinvest in a taxable account. The purpose is to draw down the Traditional balance so future RMDs are smaller. This works if your bracket is genuinely low today and expected to be higher when Social Security starts.
The 22 percent bracket is the classic ceiling for this play. If you can withdraw enough to fill the 12 or 22 percent bracket today while your provisional income is below the base amount (because you have not claimed Social Security), you locked in that rate on money that would otherwise have come out at 22 percent plus torpedo = 40.7 percent effective later.
Roth conversions. Move dollars from Traditional to Roth, pay ordinary income tax now on the fair market value converted, and future qualified distributions come out federal-tax free with no impact on future provisional income. The math for whether to convert is the same tax-bracket-now versus tax-bracket-later question, but Roth also removes the amount converted from future RMDs entirely. Roth IRAs have no lifetime RMD requirement for the original owner (Roth 401(k) plans lost their RMD requirement under SECURE 2.0 starting in 2024).
The general principle: pay ordinary rates when the torpedo is off (pre-SS-claim years and any low-income years), and avoid pulling from Traditional accounts during the years the torpedo is on (post-claim, provisional income in the 50 percent or 85 percent zones). If you must pull, live off Roth or taxable-account basis to keep provisional income below the base amount.
What about state taxes?
Most states do not tax Social Security benefits at the state level. As of the 2026 tax year, nine states have no personal income tax at all (Alaska, Florida, Nevada, New Hampshire from 2025 onward for wage income, South Dakota, Tennessee, Texas, Washington, Wyoming). Among the states that do have an income tax, the vast majority fully exempt Social Security, or exempt it above a modest income threshold. A small minority still tax some portion of benefits (the list has shrunk substantially since Missouri, Nebraska and Kansas moved to full exemption in 2024). Because the state list changes yearly, verify current treatment with your state department of revenue rather than relying on any online list. See the SSA overview of benefit taxation for the federal side and the state department of revenue page for your state.
Frequently asked questions
Is the $25,000 / $34,000 threshold indexed for inflation?
No. The base amount and adjusted base amount were set in the 1983 and 1993 amendments and Congress has never indexed them. That is why a middle-income retiree today lands in the torpedo band, even though the underlying real income is the same as an untaxed retiree in 1985. See SSA Policy Brief 2015-02 for the historical background.
Does tax-exempt municipal bond interest really count in provisional income?
Yes. This is the Publication 915 rule most people miss. Municipal bond interest is federally tax-exempt for regular income tax purposes but is added back on line 4 of Worksheet 1 for the sole purpose of computing taxable Social Security. Loading up on munis in a taxable brokerage does not always shelter you from the torpedo.
Do qualified Roth distributions raise my provisional income?
No. Qualified Roth IRA distributions (owner is at least 59.5 and the five-year rule is met) do not appear anywhere in the Worksheet 1 formula. This is why Roth conversions done pre-Social Security are a leverage tool: they raise provisional income once (the year of conversion, torpedo off) and never again.
Are in-kind gold IRA distributions treated differently?
No. An in-kind distribution of physical gold from a Traditional IRA is a taxable distribution equal to the fair market value on the distribution date. The custodian reports the amount on Form 1099-R box 1, distribution code 7 (normal distribution) if you are past 59.5. The gross amount hits provisional income at 100 percent, same as if you had sold the metal inside the account and taken cash. See IRS Form 1099-R Box 7 codes for gold IRA distributions for the operational reporting.
Can I use Qualified Charitable Distributions to sidestep the torpedo?
Yes, if you are at least 70.5. A Qualified Charitable Distribution (QCD) up to $108,000 per year for 2026 (indexed under SECURE 2.0) transfers directly from your IRA to a qualified charity, satisfies your RMD dollar-for-dollar, and does not appear in AGI at all. Because it never touches AGI, it does not appear in provisional income either. QCDs are the single cleanest way to satisfy an RMD without triggering the torpedo. See IRS Publication 590-B for the mechanics.
Where can I find the current IRS worksheet?
The current version is Worksheet 1 in IRS Publication 915 (2025 returns). The same worksheet appears in the Form 1040 instructions for line 6b. The statutory basis is 26 U.S. Code section 86. Cross-reference: Gold IRA distribution tax calculator for the ordinary-income federal and state layer, and the tools directory for the full set of retirement calculators on the site.