GGovCalcs

Frequently Asked Questions

22 answers about the calculators, where the rates come from, how the math works, and how we handle your data. Cannot find what you are looking for? Send us a note.

About the site

What is GovCalcs?
GovCalcs is a free set of no-signup calculators for confusing US government money rules. The live tools cover Social Security, capital gains tax, and the Child Tax Credit, with a required minimum distribution (RMD) calculator and four topic hubs - Retirement, Passport, Work, and Benefits - rolling out. Every figure is sourced to a public IRS, SSA, or other federal-agency release and checked against the original file.
Why don't you require an account?
Because you should not have to hand over an email address to estimate your Social Security benefit or your capital gains tax. The big finance-site calculators use multi-step forms to capture you as a sales lead. We do the opposite: enter your numbers, see the result. No account, no funnel, no gate.
Is GovCalcs affiliated with the IRS or SSA?
No. GovCalcs is an independent project. We are not affiliated with the U.S. Government, the IRS, the Social Security Administration, or any other federal agency. We just publish the rules and figures that those agencies already release for free, in a form you can actually use.
How is the site funded?
A small future affiliate component on financial products you would already research independently - tax software, brokerage and IRA accounts, and similar tools. We never sell subscriber data and we do not run third-party ad trackers.
Who built GovCalcs?
Solo developer. The site is maintained directly - bug reports, wrong numbers, and broken pages get fixed the same week they are reported.

Social Security

How does the Social Security calculator estimate my benefit?
It applies the official benefit formula. Your Average Indexed Monthly Earnings (AIME) runs through the year's bend points to produce your Primary Insurance Amount (PIA), the benefit at Full Retirement Age. The calculator then adjusts for the age you plan to claim. Your real benefit uses your full 35-year indexed earnings history on file with SSA.
How does my claim age change the benefit?
Your PIA is the benefit at Full Retirement Age (FRA), which is 66 to 67 depending on birth year. Claiming as early as 62 permanently reduces it; delaying past FRA adds about 8% per year in delayed retirement credits up to age 70. The calculator computes your FRA from birth year and applies the exact early-reduction or delayed-credit percentage.
Where do the bend points and figures come from?
From the Social Security Administration's annual updates. SSA publishes new bend points, the wage cap, and the cost-of-living adjustment (COLA) each year. We use the current-year figures so the estimate reflects the formula in effect now.

Capital Gains

How are long-term capital gains taxed?
Long-term gains (assets held more than a year) are taxed at 0%, 15%, or 20% depending on your taxable income against the current-year breakpoints, stacking on top of your ordinary income. Short-term gains (held a year or less) are taxed as ordinary income. The calculator applies all of this, plus the Net Investment Income Tax where it applies.
What is the Section 121 home-sale exclusion?
When you sell your main home, Section 121 lets you exclude up to $250,000 of gain ($500,000 married filing jointly) if you owned and lived in the home at least 2 of the last 5 years. Only gain above the exclusion is taxed. The calculator includes a home-sale toggle so you can model the exclusion against your gain.
What is NIIT and when does it apply?
The Net Investment Income Tax adds 3.8% on investment income once your modified AGI crosses $200,000 (single) or $250,000 (married filing jointly). It stacks on top of the regular capital gains tax. The calculator flags it automatically when your income crosses the threshold.

Child Tax Credit

How much is the Child Tax Credit and how much is refundable?
For tax year 2026 the credit is up to $2,200 per qualifying child under 17, with up to $1,700 of it refundable as the Additional Child Tax Credit (ACTC). The refundable portion is limited to 15% of earned income above $2,500. There is also a $500 nonrefundable Credit for Other Dependents.
How does the Child Tax Credit phase out?
The credit phases out by $50 for every $1,000 of income above $400,000 (married filing jointly) or $200,000 (other filers). Below those thresholds you get the full per-child amount. The calculator applies the phase-out automatically from your filing status and income.
Does the calculator handle the EITC too?
Yes. It computes the Earned Income Tax Credit alongside the Child Tax Credit and ACTC from your earned income, AGI, filing status, and number of qualifying children, so you see the full refundable picture in one place.

Required Minimum Distributions (RMD)

What is a required minimum distribution?
An RMD is the minimum amount you must withdraw each year from a traditional IRA or workplace plan once you reach the RMD start age. It equals your prior-year-end account balance divided by an IRS life-expectancy divisor. The calculator looks up the divisor from the Uniform Lifetime Table for your age.
At what age do RMDs start?
Under current law (SECURE 2.0), RMDs begin at age 73 for people born 1951-1959 and at age 75 for those born in 1960 or later. Your first RMD can be deferred to April 1 of the year after you reach the start age, but every later year's RMD is due by December 31.
Do Roth accounts have RMDs?
Roth IRAs have no required distributions during the original owner's lifetime, and starting in 2024 the same is true for Roth 401(k)s. Only the traditional, pre-tax balances trigger RMDs.

Email & Privacy

Will you sell my email address?
No. We do not rent, sell, or share email addresses with anyone, ever. This is the entire reason the site exists - if we were going to sell your data, we would just be another lead funnel. Full details are in the privacy policy.
How often will I get emails if I subscribe?
Maximum 2-3 per year unless you specifically opt into annual update alerts (one email each year when the IRS and SSA publish new figures - brackets, the Social Security COLA, and credit amounts). Every email has a one-click unsubscribe at the top, not buried at the bottom.
Can I share or bookmark my calculator result?
Yes. Every calculator result has a permanent shareable URL that encodes your inputs as query parameters. Copy the URL, send it to your spouse, paste it into a forum thread, or bookmark it - the page will rebuild the same numbers next time.
What analytics do you use?
Google Analytics 4 with IP anonymization, and optionally Microsoft Clarity to understand how people use the calculators. No third-party advertising trackers, no cross-site tracking, no Facebook pixel. Calculator inputs (filing status, income, claim age, and so on) are processed in your browser and never sent to our server unless you submit an email form.
Why does the calculator I want not exist yet?
Solo developer, finite hours. The Retirement, Passport, Work, and Benefits hubs and tools like RMD, Medicare IRMAA, and passport-fee estimators are rolling out over time. If yours is not listed, the contact page is the fastest way to bump it up the priority queue.

Still stuck?

If your question is not here, or you found a wrong rate, drop a note. Responses usually within 48 hours.

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