Is Social Security Taxable in Texas? Federal Rules and Thresholds

Social Security benefits are not taxable in Texas at the state level, because the Texas Constitution bans any individual income tax. The federal government is a separate matter: depending on your total income, the IRS can treat up to 85% of your monthly benefit as taxable income, and that applies no matter which state you live in.

Why Texas Takes Nothing

Article 8, Section 24-a of the Texas Constitution says the legislature “may not impose a tax on the net incomes of individuals, including an individual’s share of partnership and unincorporated association income.”¹ Voters locked that policy into the constitution in November 2019 through Proposition 4.² With no income tax on the books, there is no vehicle for the state to touch Social Security, pensions, 401(k) withdrawals, IRA distributions, or any other retirement income. Reversing this would take another statewide constitutional amendment.

When the Federal Government Taxes Your Benefits

Federal taxation of Social Security comes from 26 U.S.C. § 86. The thresholds in that statute have not been adjusted for inflation since 1983, so more retirees cross them every year. How much of your benefit becomes taxable depends on your “provisional income” and your filing status.

For single filers, heads of household, and qualifying surviving spouses:

Below $25,000: none of your Social Security is taxable.
$25,000 to $34,000: up to 50% of your benefits may be included in taxable income.
Above $34,000: up to 85% of your benefits may be included in taxable income.

For married couples filing jointly:

Below $32,000: none of your Social Security is taxable.
$32,000 to $44,000: up to 50% of your benefits may be included in taxable income.
Above $44,000: up to 85% of your benefits may be included in taxable income.

Those percentages are not your tax rate. They describe the share of your benefit that gets added to taxable income on your return, which is then taxed at whatever bracket applies to the rest of your income. Even at the top tier, you pay your marginal rate on 85% of the benefit, not 85% of the benefit itself.³

How to Figure Your Provisional Income

Provisional income is the number the IRS compares against those thresholds. Add three things:

Your adjusted gross income, excluding Social Security.
Any tax-exempt interest, including municipal bond income.
Half of your total Social Security benefits for the year.

Compare the total to the thresholds above and you can see which tier applies.⁴ Municipal bond interest trips up a lot of retirees. It escapes federal tax on its own, but it still counts toward provisional income, so it can quietly push more of your Social Security into the taxable zone.

The Married Filing Separately Trap

If you are married, file separately, and lived with your spouse at any point during the year, your base amount under 26 U.S.C. § 86 is $0.³ Up to 85% of your benefits can be taxable from the first dollar of provisional income. There is no middle tier where only 50% applies.⁴

The one exception is if you lived apart from your spouse for the full calendar year. Then the IRS treats you as a single filer with the $25,000 base amount. For most married couples sharing a household, a joint return almost always produces a lower tax on Social Security than separate returns, so it is worth running both ways before you file.

Reducing the Taxable Share

Because provisional income drives the whole calculation, anything that keeps income out of that formula protects more of your benefit. A few approaches that work for Texas retirees:

Limit traditional IRA and 401(k) withdrawals to what you actually need, or to the required minimum distribution. Every dollar pulled from a pre-tax account raises your AGI.
Convert traditional IRA money to a Roth before you start claiming Social Security. Roth withdrawals do not count toward provisional income. You pay tax on the conversion in the year you do it, but future withdrawals will not push your benefits into a higher bracket.
Once you are 70½, use qualified charitable distributions. You can send up to $105,000 a year directly from a traditional IRA to a qualifying charity. It satisfies your required minimum distribution and never shows up in AGI.
Watch the timing of large capital gains. A single big sale can spike your AGI for one year and bump your benefits from the 50% tier into the 85% tier. Spreading sales across tax years softens the hit.

None of this makes federal tax disappear for a high-income retiree, but it can be the difference between 50% and 85% of your benefits being taxable.

Paying What You Owe

If your provisional income puts you above the taxable thresholds, the easiest way to handle it is to have federal tax withheld from your monthly benefit. You can pick a flat rate of 7%, 10%, 12%, or 22%.⁵ Three ways to set it up:

Sign in to your my Social Security account at ssa.gov and start, change, or stop withholding online.⁶
Call the SSA at 1-800-772-1213 and tell the representative the percentage you want.
Complete IRS Form W-4V and mail it to the Social Security Administration.⁷

If you also have rental income, part-time work, or large investment gains, withholding from Social Security alone may not cover your full bill. In that case, you can make quarterly estimated payments. The due dates are April 15, June 15, September 15, and January 15 of the following year.⁸

The IRS charges an underpayment penalty if you owe too much at filing time and haven’t paid in enough along the way. You can avoid the penalty if any one of these applies:

You owe less than $1,000 after withholding and credits.
You paid at least 90% of the current year’s tax through withholding, estimated payments, or both.
You paid at least 100% of last year’s tax (110% if your prior-year AGI was over $150,000, or $75,000 if married filing separately).

For a retiree with fairly stable income, the 100% prior-year rule is the easiest safe harbor to rely on, because you already know what last year’s tax was.⁹ Setting withholding a little high and getting a small refund is less risky than guessing low and triggering a penalty.

1
FindLaw. Constitution of the State of Texas 1876 Art. 8, 24-a
2
Ballotpedia. Texas Proposition 4, Prohibit State Income Tax on Individuals Amendment (2019)
3
Office of the Law Revision Counsel. 26 USC 86 – Social Security and Tier 1 Railroad Retirement Benefits
4
Internal Revenue Service. Social Security Income
5
Internal Revenue Service. Form W-4V (Rev. January 2026) Voluntary Withholding Request
6
Social Security Administration. Request to Withhold Taxes
7
Internal Revenue Service. About Form W-4V, Voluntary Withholding Request
8
Internal Revenue Service. When to Pay Estimated Tax – Individuals 2
9
Internal Revenue Service. Underpayment of Estimated Tax by Individuals Penalty