Schedule B (Form 1040)

Schedule B is the attachment to Form 1040 on which a taxpayer lists taxable interest and ordinary dividends by payer, and answers a short set of questions about foreign financial accounts and foreign trusts. Its official title is "Interest and Ordinary Dividends", and it has three parts: Part I for interest, Part II for ordinary dividends, and Part III headed "Foreign Accounts and Trusts".

The schedule does almost no arithmetic. The total from Part I is the same taxable interest figure that goes on Form 1040, and the total from Part II is the same ordinary dividend figure, so nothing about the tax changes because the schedule exists. What it adds is detail the IRS can match against the information returns it already holds, and the two disclosure questions in Part III, which are the part of the form with real consequences attached.

The dollar trigger is two triggers, and it is easy to get backwards. The instructions say to use Schedule B if "you had over $1,500 of taxable interest or ordinary dividends", and the form applies that test to each part separately: a note under Part I says to complete Part III if the interest total is over $1,500, and an identical note sits under Part II for dividends. So $1,600 of interest and $400 of dividends requires the schedule, while $1,400 of interest and $1,400 of dividends, a larger total, does not. The figure is long-standing and is not adjusted for inflation.

Seven other conditions require it at any amount. The instructions give eight in one list, the first of which is the dollar test above. The other seven: interest from a seller-financed mortgage where the buyer used the property as a personal residence; accrued interest from a bond; reporting original issue discount of less than the amount shown on a Form 1099-OID; reporting less interest than a Form 1099 shows because of amortizable bond premium; claiming the exclusion of interest on series EE or I savings bonds issued after 1989; receiving interest or ordinary dividends as a nominee; and having a financial interest in or signature authority over a foreign financial account, or receiving a distribution from, being a grantor of, or being a transferor to a foreign trust. Five of those seven exist because the taxpayer is reporting something different from what a payer reported, and the schedule is where the difference is shown rather than left as a mismatch.

Part III is a disclosure, not a calculation. Question 7a asks whether at any time during the year you had a financial interest in or signature authority over a financial account located in a foreign country, and then whether you are required to file FinCEN Form 114, the Report of Foreign Bank and Financial Accounts. Question 7b asks you to name the countries. Question 8 asks whether you received a distribution from, or were a grantor of or transferor to, a foreign trust, which points at Form 3520. The form's own margin carries a caution that failing to file FinCEN Form 114 where required "may result in substantial penalties", and notes that Form 8938 may be required as well. Signature authority alone, over an employer's account or a relative's, is enough to make 7a a yes even where none of the money is yours.

The nominee mechanic is the one procedural rule most people meet here. If a Form 1099-INT includes interest that actually belongs to someone else, because a joint account is titled in your name or you hold funds for a relative, you report the whole reported figure on line 1, put a subtotal underneath, then write "Nominee Distribution" and the amount belonging to others, and subtract. The instructions add the obligation people miss: unless the real owner is your spouse, you must give them a Form 1099-INT and file it with a Form 1096. The same procedure and the same obligation apply to dividends in Part II.

Seller-financed mortgages come with a name and a number. If you sold property and the buyer used it as a personal residence, the interest they paid you is listed first, with the buyer's name, address and Social Security number, and you must give the buyer your own. The instructions attach a $50 penalty to failing either half. It is a small penalty attached to a requirement almost nobody knows exists.

Line 3 is a subtraction most filers never use. It carries the exclusion for interest on series EE and I savings bonds issued after 1989 that were cashed to pay qualified higher education expenses, computed on Form 8815 and subtracted before the total goes to Form 1040.

What does not go on Schedule B. Tax-exempt interest is excluded from line 1 entirely and is reported directly on Form 1040. Qualified dividends are not listed separately here either: Part II reports ordinary dividends, which already include the qualified portion, and the qualified figure goes straight to Form 1040 from box 1b of the Form 1099-DIV. And the instructions carry one counterintuitive caution: market discount on a tax-exempt bond is taxable interest income, not tax-exempt interest, so it belongs on line 1.

Listing a brokerage firm counts as listing a payer. The form's own note says that if you received a Form 1099-INT, Form 1099-OID or a substitute statement from a brokerage firm, list the firm's name as the payer and enter the total shown on that statement. A composite statement covering forty bond positions is therefore one line, not forty.

Filling it in is mechanical, and the only judgment is at the start.

1. Decide whether you need it, by testing the interest total and the dividend total separately against $1,500 and then running the list of eight other conditions.

2. List the payers in Part I, one line each, using a brokerage firm's name and its statement total where a composite statement covers several positions.

3. Adjust for anything you are reporting differently from what a payer reported: a nominee distribution, accrued interest paid to a seller, or bond premium amortization, each shown as a labeled subtraction.

4. Repeat for dividends in Part II.

5. Answer Part III, which is required if either total exceeded $1,500, if you had a foreign account, or if a foreign trust is involved.

A hypothetical example of the trigger, which is the part most often misread. Two taxpayers each have investment income for the year.

Anwar has $1,600 of taxable interest and $400 of ordinary dividends, which is $2,000 in total. He must file Schedule B, because his interest alone is over $1,500.

Beatriz has $1,400 of taxable interest and $1,400 of ordinary dividends, which is $2,800 in total, or $800 more than Anwar. She is not required to file Schedule B on the dollar test at all, because neither figure on its own exceeds $1,500. The larger portfolio produces the smaller filing obligation, because the test was never on the sum.

A second hypothetical, on the nominee rule. Ravi's joint savings account is titled in his name, so the bank's Form 1099-INT reports the whole $2,600 of interest to him, although $1,300 of it belongs to his sister. He lists $2,600 on line 1, subtotals it, writes "Nominee Distribution" and $1,300 below, and subtracts, so $1,300 carries to line 2. He also has to issue his sister a Form 1099-INT for her half and file it with a Form 1096.

What the schedule does well

• It gives the IRS a payer-by-payer breakdown that can be matched against the Forms 1099 it already holds, which resolves discrepancies that would otherwise become notices.
• It provides a documented place to report less than a Form 1099 shows, which is otherwise the hardest kind of adjustment to make visibly.
• The foreign account and foreign trust questions put a disclosure with severe penalties on the face of the return rather than in a separate filing nobody reads about.
• Allowing a brokerage statement to be listed as one payer keeps the form short for the people with the most positions.

Where it causes trouble

• The $1,500 test is stated as one sentence and applied as two, so a filer with a large combined total and two moderate components can reasonably conclude they need the schedule when they do not.
• The foreign account question reaches signature authority over accounts that are not yours, which is easy to answer wrongly in good faith.
• The nominee procedure creates a filing obligation, complete with a Form 1099-INT and a Form 1096, that a person splitting a joint account rarely knows about.
• The seller-financed mortgage rule carries a penalty for omitting a name and a number that no other part of the return asks for.
• Because the schedule changes no tax, it is easy to treat as optional, and the parts with consequences are the parts that are not about money.