MAGI calculation for IRMAA

raaizin

Dryer sheet wannabe
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Question on how MAGI is calculated for IRMA. We are taxed at 85% for SS. It is my understanding that 100% of SS would be part of MAGI. Same for dividends and Capitol gains 100% of each would be included in the MAGI even though they are taxed at a lower rate. Am I correct?
 
Correct. MAGI includes 100% of SS, all dividends and capital gains. Tax rate has nothing to do with MAGI calculation.

Updated: It appears that the untaxed SS portion is not included.
 
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Nope.

MAGI for IRMAA is AGI plus tax exempt interest. 1040 Line 11 plus 1040 Line 2a. 1040 Line 11 only includes taxable SS from Line 6b, not all SS from Line 6a.

Also, as a side note, you are not taxed at 85% on your SS. Up to 85% of your SS is taxed as ordinary income at ordinary income tax rates (10%, 12%, 22%, 24%, etc.).
 
Fortunately only the taxable part of SS, max 85% of it, is included in MAGI for IRMAA.

A small break. I’ll take it!
Fully agree on both points. That's the way I've been calculating mine for years. Sort of game now - how close can I get... Getting pretty close this year. Maybe within 2k "but that's still guessing" on what the 2026 IRMAA numbers will be. (so unfair for us tax payers to have to guess but I'm getting good at it)
 
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Modified Adjusted Gross Income - Bogleheads has links to ten different MAGI calculations, including the one for IRMAA.
Interesting. Under for ACA MAGI, it says Investment Income, and then when you hover over that it ways include all investment income, including non-taxable. I still assume that any gains within 401k's, IRA's etc are not included as income, just withdrawals? I know this wasn't about ACA but it caught my eye.

Flieger
 
Interesting. Under for ACA MAGI, it says Investment Income, and then when you hover over that it ways include all investment income, including non-taxable. I still assume that any gains within 401k's, IRA's etc are not included as income, just withdrawals? I know this wasn't about ACA but it caught my eye.

Flieger
Tax-exempt interest in taxable accounts such as muni-bond interest is included in MAGI.

For IRMAA, MAGI = AGI+tax exempt interest which is also reported on your 1040 even though you aren’t taxed on it. These are line 2a, tax exempt interest and line 10, AGI on your form 1040.

Earnings in tax-deferred accounts is not included as it doesn’t appear in the AGI. Withdrawals from IRAs do appear in your AGI.
 
Modified Adjusted Gross Income - Bogleheads has links to ten different MAGI calculations, including the one for IRMAA.
It's absurd there are 10 different MAGI calcs, and absurd we can't have IRMAA thresholds in the year we're dialing in MAGI. :mad:

No other country has a tax code so complex the average citizen has no chance of understanding it...
 
It's absurd there are 10 different MAGI calcs, and absurd we can't have IRMAA thresholds in the year we're dialing in MAGI. :mad:

No other country has a tax code so complex the average citizen has no chance of understanding it...
I don't see any way to avoid the IRMAA issue. The thresholds are inflation adjusted (as they should be, IMO) and they can't do the calculation for 2025 until the August 2024 CPI is reported in early September, so that they can start deducting from the Social Security checks for December which are paid in January of 2025. At the same time, the latest income information they have for people (to see whether they are over the new threshold amount) is what was in the tax returns filed in April 2024 (i.e. - 2023 MAGI).
 
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Nope.

MAGI for IRMAA is AGI plus tax exempt interest. 1040 Line 11 plus 1040 Line 2a. 1040 Line 11 only includes taxable SS from Line 6b, not all SS from Line 6a.

Also, as a side note, you are not taxed at 85% on your SS. Up to 85% of your SS is taxed as ordinary income at ordinary income tax rates (10%, 12%, 22%, 24%, etc.).

So tax-exempt interest is taxed for the purposes of IRMAA?
 
We ten MAGIs of Washington are
Bearing taxes we traverse afar.
Land and income, gains for certain,
Following yon dollar.
 
So tax-exempt interest is taxed for the purposes of IRMAA?

It's not taxed, but it contributes to the possibility that a taxpayer pays the income-related monthly adjustment amount related to their government provided medical insurance. Semantics, I suppose.
 
So tax-exempt interest is taxed for the purposes of IRMAA?
No. It's included in the MAGI calculation, but you're still only taxed on 85% or less of your Soc Sec payments.
 
No. It's included in the MAGI calculation, but you're still only taxed on 85% or less of your Soc Sec payments.

What if you claim Medicare before Social Security?
 
What if you claim Medicare before Social Security?
You just pay it separately instead of having it deducted from your SS benefit. They have a system called Easy Pay that is simple to set up. The premium is deducted monthly from your bank account. You can also pay directly online.
 
What if you claim Medicare before Social Security?
I’m paying Medicare premiums now and I have not started SS yet. I send payments to CMS Medicare monthly from my HSA account via scheduled bill pay, and I will do so until I start SS. These premiums include whatever I owe for IRMAA each year.

If you are subject to IRMAA you get to pay your Medicare premiums monthly.
 
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