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AARP updated their 1040 free Tax Estimator for 2025 today. The calculator is before any changes in the H.R. 1 bill passed by the House recently.
One easy work around to see how the proposed law change may impact your 2025 taxes is plugging into the AARP calculator itemized deductions – interest the H.R. 1 additional $4K and $2K (if you are filing MFJ status) if you think the additional senior standard amounts will become law in 2025 plus your standard deduction for 2025.
2026 Update – While the AARP website tax calculator, as of today 4/14/2026, still has the 2025 tax calculator, the developer of that AARP software, Dinkytown, has recently posted their initial 2026 tax calculator to their website.
I did note that the 2026 calculator appears to not yet deduct the 2026 limited charitable contributions in their calculation of taxable income (amount is listed, it just does not currently deduct from the total). The current 2026 version does use the 2026 brackets/rates and accounts properly for the $6K senior deduction for each age 65+ taxpayer on the projected return.
It’s anyone’s guess if there will be additional 2026 tax law changes so I will not fine tune my tax planning until late in 2026.
Thanks for this, Bill. I used it to double check the work I had done on the IRS web site. I did notice about the $2k charitable contributions not being there yet. It was on the IRS site. Happy for you that tax day is over and hoping you are getting some well deserved R & R in the next few weeks. Chris
Thanks William.
Here is a link to determine the approximate taxation of your Social Security Benefits that I found useful last year!
https://www.annuityadvantage.com/calculator/social-security-taxable-benefits-calculator/
Thanks for the update, Bill. Appreciate the post!
I was initially wondering if the AARP would release their 2025 calculator update in May as they usually do or if they would hold off on the update until the we actually have the final version of the new tax law. I am glad they released it now as there are likely people using the estimator to help plan their 6/15/2025 2nd quarter 2025 ES payment.
I expect the AARP calculator will likely be updated after congress passes and the President signs any major 2025 tax bill. The currently 2025 calculator is based on the tax law and rules as they currently exist.
That’s exactly what I need it for – 2Q 2025. I’ll use it for calc’ing the Roth conversion amount at YE. (I’m expecting the AARP calculator to have the tax changes in before TurboTax.) Thanks, Bill!
Can we assume legislation would be retroactive to January 1st 2025? Some provisions may only be enacted for part of 2025 or not take effect until tax year 2026. Congress is unpredictable when it comes to tax law.
Some of the House bill H.R. 1 provisions, like the extra $4K for seniors, start effective for tax year 2025. I agree with your description of current tax law as unpredictable. I will wait until at least the Senate has taken action and most likely until the House and Senate have agreed on the final bill before I pull any of my final levers on our 2025 1040.
Can you post a link? Thanks!
https://www.aarp.org/money/taxes/1040-tax-calculator/
Here you go.