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Social Security Benefits Worksheet Lines 5a and 5b - Client is over 65 and shouldn't be taxedSureFire taxed client


🔍 Social Security Benefits Worksheet Lines 5a and 5b (Client is over 65 and shouldn’t be taxed)

Per 1040 Instructions: 2018, this guide explains how to complete the Social Security Benefits Worksheet for lines 5a and 5b and determine whether any of your social security benefits are taxable.

⚠️ Before You Begin

Be sure you have read the Exception in the line 5a and 5b instructions to see if you can use this worksheet instead of a publication to find out if any of your benefits are taxable.

You will need:

  • Total amount from box 5 of all your Forms SSA-1099 and Forms RRB-1099
  • Your Form 1040 information for lines 1, 2a, 2b, 3b, 4b, and Schedule 1, line 22
  • Your Schedule 1 amounts for lines 23 through 32 (plus any write-in adjustments next to Schedule 1, line 36 other than any amounts identified as DPAD)

📚 What This Guide Covers

  • How to enter write-in adjustments next to Schedule 1, line 36 (see the instructions for Schedule 1, line 36)
  • How to determine whether none of your social security benefits are taxable and what to enter on Form 1040, line 5b
  • How to complete the worksheet steps (lines 1 through 18) to calculate taxable social security benefits when applicable

📝 Key Instructions for Lines 5a and 5b

Use this when you need to enter the correct filing status indicator for line 5a and avoid IRS math error notices.

Step 1: Enter the correct value on line 5a (married filing separately)

If you are married filing separately and you lived apart from your spouse for all of 2018, enter D to the right of the word benefits on line 5a. If you dont, you may get a math error notice from the IRS.

Step 2: Plan for any write-in adjustments

Figure any write-in adjustments to be entered on the dotted line next to Schedule 1, line 36 (see the instructions for Schedule 1, line 36).

📊 Step-by-Step Guide (Worksheet)

Step 1: Worksheet line 1

Use this when you need to total your social security benefits amounts.

Enter the total amount from box 5 of all your Forms SSA-1099 and Forms RRB-1099. Also, enter this amount on Form 1040, line 5a . . . . . 1.

Step 2: Worksheet line 2

Multiply line 1 by 50% (0.50) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.

Step 3: Worksheet line 3

Combine the amounts from Form 1040, lines 1, 2b, 3b, 4b, and Schedule 1, line 22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.

Step 4: Worksheet line 4

Enter the amount, if any, from Form 1040, line 2a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.

Step 5: Worksheet line 5

Combine lines 2, 3, and 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.

Step 6: Worksheet line 6

Enter the total of the amounts from Schedule 1, lines 23 through 32, plus any write-in adjustments you entered on the dotted line next to Schedule 1, line 36 other than any amounts identified as DPAD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.

Step 7: Compare line 6 to line 5 (worksheet line 7)

Is the amount on line 6 less than the amount on line 5?

No. STOP None of your social security benefits are taxable. Enter -0- on Form 1040, line 5b.

Yes. Subtract line 6 from line 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.

Step 8: Worksheet line 8 (threshold amount)

If you are:

  • Married filing jointly, enter $32,000
  • Single, head of household, qualifying widow(er), or married filing separately and you lived apart from your spouse for all of 2018, enter $25,000

Married filing separately and you lived with your spouse at any time in 2018, skip lines 8 through 15; multiply line 7 by 85% (0.85) and enter the result on line 16. Then, go to line 17

Step 9: Compare line 8 to line 7 (worksheet line 9)

Is the amount on line 8 less than the amount on line 7?

No. STOP None of your social security benefits are taxable. Enter -0- on Form 1040, line 5b. If you are married filing separately and you lived apart from your spouse for all of 2018, be sure you entered D to the right of the word benefits on line 5a.

Yes. Subtract line 8 from line 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.

Step 10: Worksheet line 10

Enter: $12,000 if married filing jointly; $9,000 if single, head of household, qualifying widow(er), or married filing separately and you lived apart from your spouse for all of 2018 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.

Step 11: Worksheet line 11

Subtract line 10 from line 9. If zero or less, enter -0- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.

Step 12: Worksheet line 12

Enter the smaller of line 9 or line 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.

Step 13: Worksheet line 13

Enter one-half of line 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.

Step 14: Worksheet line 14

Enter the smaller of line 2 or line 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.

Step 15: Worksheet line 15

Multiply line 11 by 85% (0.85). If line 11 is zero, enter -0- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15.

Step 16: Worksheet line 16

Add lines 14 and 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.

Step 17: Worksheet line 17

Multiply line 1 by 85% (0.85) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17.

Step 18: Worksheet line 18 (taxable social security benefits)

Taxable social security benefits. Enter the smaller of line 16 or line 17. Also enter this amount on Form 1040, line 5b . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18.

✅ Success!

If you reach either STOP point (line 7 or line 9 comparisons), none of your social security benefits are taxable, and you should enter -0- on Form 1040, line 5b.

💡 Tip

TIP If any of your benefits are taxable for 2018 and they include a lump-sum benefit payment that was for an earlier year, you may be able to reduce the taxable amount. See Lump-Sum Election in Pub. 915 for details.

❌ Common Errors

If you are married filing separately and you lived apart from your spouse for all of 2018, be sure you enter D to the right of the word benefits on line 5a. If you dont, you may get a math error notice from the IRS.

📞 Still Need Help?

If you are having trouble, contact our support team:

Phone: 1-800-516-9442

Or submit a support ticket



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