December: Eleven Year-End Items for a Startup With a Foreign Sub, Including the Intercompany True-Up

A foreign subsidiary brings US information returns with their own triggers, deadlines and penalties ^{1, 5}. A missing one can also keep the tax year open to assessment ⁴. Below are eleven items in four groups. Founders decide the intercompany price and confirm who owns what. Finance leads own the mechanics underneath.

Which items belong on your December list?

Map which returns you file ^{1, 5}, settle the intercompany price before the return is filed ⁸, then classify balances, record ownership events, and diary Delaware's March 1 date ¹⁹.

1. Confirm the subsidiary is a corporation

Form 5471 reports on foreign corporations ¹. If the subsidiary is treated as a disregarded entity, the US owner files Form 8858 instead, due with the income tax return, extensions included ².

2. File Form 5471 and read the penalties correctly

A US corporation that controls a foreign subsidiary is a Category 4 filer. It attaches Form 5471 to its income tax return, due date including extensions ¹.

A Form 5471 failure can also cut creditable foreign taxes by 10%, more after IRS notice. That does not simply stack on the $10,000. The reduction is capped at the greater of $10,000 or the subsidiary's income for the year, is reduced by any dollar penalty for the same failure, and matters only where the company claims foreign tax credits ³. The assessment period also stays open until three years after the information is furnished ⁴.

3. Test for a 25% foreign shareholder

A US corporation with a direct or indirect 25% foreign shareholder at any time in the tax year is a reporting corporation ⁵. Test the whole year, not only December 31.

4. List reportable transactions by related party

Reporting-corporation status alone does not require a filing. Form 5472 is generally required only for reportable transactions with a related party, such as services, royalties, loans and interest ⁵. Exceptions include having no reportable transactions, and transactions with a foreign corporation you control that your Form 5471 Schedule M reports in full ⁵. A loan from a foreign founder needs its own form only where the founder is a related party, such as a 25% foreign shareholder, the loan is a reportable transaction, and no exception applies ⁵. Each related party gets a separate return ⁶, and the $25,000 penalty applies once per related party per year ⁷.

Intercompany pricing: items 5 to 7

5. Book the true-up before the return is filed

Book the true-up in December where you can. An adjustment made only on the return that decreases US taxable income works solely on a timely filed return, extensions included; no late or amended return can use one to reduce taxable income, a bar that does not apply to adjustments that increase it ^{8, 13}. It also leaves the books out of step with the tax result, which item 9 covers.

6. Test services cost method eligibility

The services cost method charges total services cost with no markup, but only if the service is covered, is not an excluded activity, passes the business judgment rule, and has adequate books and records ⁹. Excluded activities include research, development or experimentation and engineering or scientific work, alongside manufacturing and financial transactions. Services that contribute significantly to key competitive advantages or core capabilities also fail ⁹.

Foreign R&D subsidiaries

R&D or engineering services to the US parent cannot be charged at cost under this method. Price them under another services method ⁹, which typically means a return above cost.

7. Have documentation in place by the filing date

To keep an adjustment out of the net adjustment penalty, the company must have selected and applied a transfer pricing method reasonably under the best method rule, and documentation showing this must exist when the return is filed and reach the IRS within 30 days of a request. The net adjustment penalty applies only where the net section 482 adjustment exceeds the lesser of $5 million or 10% of gross receipts, and is then 20% of the resulting underpayment, rising to 40% where the adjustment exceeds the lesser of $20 million or 20% of gross receipts ¹⁰.

Balance classification: items 8 and 9

8. Classify every intercompany balance

The loan rules cover bona fide indebtedness: loans, advances, and ordinary-course receivables from sales, leases or services, which get a limited interest-free period. An advance that is in substance a capital contribution falls outside them ¹¹. Label each balance before deciding on interest.

9. Price loans, and know what an allocation sets off

Where a group member lends at no interest or a non-arm's-length rate, the IRS may allocate an arm's-length rate. For US-dollar loans, 100% to 130% of the applicable federal rate is a safe haven, unless the lender is in the lending business ¹¹.

An allocation is not a cash payment, but it does not stay on paper. The accounts must be conformed, as a dividend, a capital contribution, or a repayment under a revenue procedure ⁸. Which applies depends on the underlying transaction and the direction of the adjustment as well as on ownership: where an allocation increases the US company's income, the conforming adjustment is generally a contribution where the US company owns the related party, and a dividend where the related party owns the US company ^{13, 14}. Allocated income subject to withholding, and income arising from secondary adjustments accompanying reallocations from a foreign person to a related U.S. person, are deemed paid on the last day of the tax year ¹². Whether US withholding and Form 1042-S reporting follow depends on what is deemed paid: a deemed dividend to a foreign owner generally brings both, with any exemption or treaty rate reducing the withholding but not the reporting, while a deemed contribution to a foreign subsidiary generally brings neither ^{12, 13, 14, 15}. Rev. Proc. 99-32 offers a way out: a US corporation, including one reporting its own adjustment, can use an interest-bearing intercompany account instead, disclosed on the return and paid within a 90-day period ¹³.

Ownership and dates: items 10 and 11

10. Record ownership events in the subsidiary

Section 6046 reporting runs through Form 5471 and is triggered by events, not by holding a stake ^{1, 16}. A US person who acquires a 10% interest, becomes a US person while holding one, or disposes of stock to fall below 10% is a Category 3 filer that year. A US officer or director of the subsidiary is a Category 2 filer only in a year when a US person acquired 10%, or an additional 10%, of its stock ¹. Check formation, share issues and transfers.

The statutory 90-day default yields to the form ^{16, 17}: Form 5471 goes with the income tax return, extensions included, and one filer may cover others with the same or lesser requirements ¹. A failure costs $10,000 per reportable transaction, up to $50,000 more after IRS notice, unless reasonable cause is shown ^{1, 18}.

11. Diary Delaware's March 1 deadline

Prior-year annual reports and franchise tax are due by March 1, filed online. Late filing costs $200.00 plus 1.5% monthly interest. Minimum tax is $175.00 under the Authorized Shares Method or $400.00 under the Assumed Par Value Capital Method, plus a $50.00 report fee ¹⁹. These are minimums, not a forecast of your bill.

What this does not cover

Home-country treatment of the same adjustment, state filings, and the US deduction timing for research done abroad sit outside the sources here.

What now

Founders: approve the intercompany price and confirm whether anyone held 25% or more during the year. Finance leads: pull the intercompany ledger, label every balance, and write a one-page filing map. When a diligence request lands, you will want that map ready. With both in hand, a professional review can settle the true-up before your return is filed: Book a US Finance Review