Last reviewed October 7, 2026 · By the NYBACS advisory team
Short answer
Each intercompany transaction should be recorded in both entities' books at the same amount, on the same date and with matching documents — a due-to balance in one entity mirrored by a due-from balance in the other — under a written agreement priced at arm's length. For a US company with a foreign parent or affiliates, these balances also feed Form 5472 and transfer-pricing support, so they need to be agreed every month.
Key takeaways
- Intercompany balances should net to zero across the group at every period-end; mismatches usually signal timing, exchange-rate or classification errors.
- US tax law (section 482) expects related-party prices — service fees, royalties, interest and goods — to reflect what unrelated parties would agree.
- A US corporation that is at least 25% foreign-owned, and a foreign-owned single-member LLC, report related-party transactions on Form 5472.
- US-source interest, royalties and similar payments to a foreign affiliate can be subject to US withholding and Form 1042-S reporting, depending on the income type and any treaty.
- Amounts accrued to a foreign related party are generally deductible only when actually paid, so long-unpaid intercompany charges can defer deductions.
Common intercompany flows in a US subsidiary
| Flow | Typical US book entry | Documentation needed |
|---|---|---|
| Parent funds the US company | Equity (stock or APIC) or loan payable | Board approval, share issuance or loan agreement |
| Parent pays US expenses on the subsidiary's behalf | Expense; credit due to parent | Vendor invoice plus parent's recharge invoice |
| US company provides sales or support services to the parent | Service revenue; debit due from parent | Service agreement with a pricing method such as cost plus a markup |
| Parent provides management, IT or HR services | Expense; credit due to parent | Intercompany agreement and allocation basis |
| US company buys goods from an affiliate for resale | Inventory; credit due to affiliate | Purchase orders, intercompany invoices, transfer price policy |
| US company licenses IP from the parent | Royalty expense; credit due to parent | License agreement and royalty rate support |
A US sales or support subsidiary of an Indian, UK or GCC group is often remunerated on a cost-plus basis: the parent pays the subsidiary its costs plus an agreed markup. That structure only works if the subsidiary's costs are captured completely and the service fee is invoiced on schedule.
Mirror entries and monthly matching
Every intercompany entry has a twin in the other entity's books. To keep them aligned:
- Use a single intercompany invoice, numbered once and recorded by both sides.
- Agree which exchange rate applies — the rate on the invoice date is common — and state the invoice currency in the agreement.
- Record both sides in the same month, even if one entity receives the invoice late.
- At month-end, exchange balance confirmations with the parent's finance team and resolve differences before closing.
- Book exchange gains or losses on settlement in each entity's own functional currency.
At consolidation, intercompany revenue, expense, receivables and payables are eliminated. If the two sides disagree, the group carries an unexplained difference — the first thing a group auditor will ask about.
Arm's-length pricing and documentation
Section 482 allows the IRS to adjust prices between related parties so they reflect what independent businesses would agree. The parent's own tax authority applies its own transfer pricing rules from the other side, so the same transaction is often reviewed in two countries.
At minimum, keep a signed intercompany agreement for each flow, a written explanation of how the price or markup was set, and invoices that follow the agreement. Larger groups maintain formal transfer pricing documentation; contemporaneous documentation can also be relevant to whether US penalties apply if the IRS adjusts prices. How detailed the documentation should be depends on the size and nature of the flows and is a question for a transfer pricing advisor.
Tax reporting touchpoints
Intercompany records feed several US filings:
- Form 5472 — related-party transactions by category, for 25%-or-more foreign-owned corporations and foreign-owned single-member LLCs.
- Forms 1042 and 1042-S — where the US company pays US-source fixed or determinable income, such as interest or royalties, to a foreign affiliate and withholding applies.
- Deduction timing — amounts owed to a foreign related party are generally deductible by the US company only when paid, so accruing a management fee or royalty for years without payment can push deductions into later years.
Each depends on the books identifying which counterparty is which and what each payment represents.
Settling balances instead of letting them grow
Open intercompany balances that grow for years look less like trade payables and more like disguised capital or informal loans. They also invite questions from US banks reviewing large inbound and outbound transfers.
Set a settlement rhythm — monthly or quarterly — and pay balances in cash. If a balance will not be settled, decide deliberately whether to convert it into equity, document it as a loan with interest and terms, or forgive it, and record the decision in board minutes on both sides.
Common mistakes to avoid
- Booking parent funding as revenue or as an unlabeled transfer in.
- Each entity recording the same invoice at a different date or exchange rate, so balances never agree.
- Charging management fees with no agreement and no basis for the amount.
- Accruing royalties or service fees to the parent for years without paying them.
- Netting payables and receivables between entities without a written netting arrangement.
- Paying interest or royalties abroad without considering withholding and Form 1042-S reporting.
NYBACS 360° support
How NYBACS helps
- Maps every intercompany flow and sets up due-to and due-from accounts per related entity.
- Runs monthly intercompany matching with your parent's finance team and resolves differences before close.
- Maintains an intercompany file of agreements, invoices and settlement records, and coordinates with transfer pricing advisors.
- Prepares related-party schedules for Form 5472 and payment data for Form 1042-S for your tax professionals.
- Produces a consolidation-ready reporting pack with intercompany balances clearly identified.
Frequently Asked Questions
Should the parent fund the US subsidiary with equity or a loan?
Both are common. Equity is simpler and strengthens the subsidiary's balance sheet; a loan allows repayment and interest but needs an agreement, arm's-length terms and attention to withholding. The choice should be reviewed with tax advisors in both countries.
Do we need a formal transfer pricing study?
It depends on the size and type of the flows and on both countries' rules. Even small groups should document how prices or markups were set; whether a full study is warranted is a question for a transfer pricing advisor.
Can the parent pay US vendors directly for the subsidiary?
It can, but the US company must still record the expense and a payable to the parent, supported by the vendor invoice and a recharge. Paying from the US account is cleaner wherever possible.
What currency should intercompany invoices use?
Either party's currency can work. State the currency in the agreement and apply a consistent exchange-rate policy so both entities record matching amounts.
How are intercompany balances handled at consolidation?
They are eliminated so the group does not report sales to or debts owed by itself. Elimination only works cleanly when both entities' balances agree.
