If your Hong Kong business sells goods or services into mainland China, you will encounter the fapiao (发票) — the official tax invoice that underpins China's VAT system. Since the rollout of fully-digital electronic invoices (数电票, "shù diàn piào"), the rules around issuance, format, and data sharing have shifted materially. This guide explains what has changed, who is affected, how the flow works at a high level, and what an HK seller should ask its mainland counterparty before transacting.
What "Fully-Digital e-Fapiao" Changes vs. Paper Fapiao
Traditional fapiao existed in two forms: paper invoices with physical tax-control panels, and earlier-era "ordinary electronic invoices" that were still partial PDFs with limited data fields. 数电票 is the State Taxation Administration's (STA) unified, fully-digital format. The practical differences for a cross-border seller:
- No physical medium. The invoice is not a paper stub, not a PDF attachment, and not a UKey-issued file. It is a structured digital record assigned by the STA system.
- Richer data fields. Each 数电票 carries granular line-item data (tax classification codes, unit price, quantity, tax rate per line) rather than a single summary amount.
- Single national format. Previously, different regions used slightly different e-invoice templates. 数电票 standardises the schema across provinces [VERIFY scope of full national rollout at time of reading — STA has expanded in phases].
- Issuance through the STA portal. Authorised taxpayers issue directly from the e-tax bureau; the recipient can verify the invoice through the same channel.
- Replaces the special invoice / general invoice split for VAT purposes within the scope of the reform [VERIFY specific categories replaced in the latest pilot — the STA has rolled this out incrementally].
For an HK seller, the key takeaway is that the entity issuing the fapiao is the mainland counterparty (or the seller's mainland entity), not you. HK companies cannot issue a mainland fapiao from Hong Kong.
Who Needs 数电票
You need to think about 数电票 if any of the following apply:
- You sell to a mainland Chinese buyer (B2B or B2C via cross-border e-commerce) who needs a compliant fapiao to claim input VAT or to expense the purchase.
- You have a mainland subsidiary, WFOE, or representative office that is registered as a VAT taxpayer in China.
- You use a marketplace, distributor, or agent in the mainland that issues fapiao on your behalf under a consignment or agency model.
- You provide services consumed in mainland China (e.g., licensing, consulting, SaaS) where the buyer's finance team requires a fapiao for booking and tax deduction.
If your HK company sells to an overseas buyer outside China, or to a HK buyer, fapiao obligations generally do not arise.
Issuance Flow at a High Level
The exact steps depend on whether the issuer is a general VAT taxpayer or a small-scale taxpayer, and which pilot region they operate in. The general sequence is:
- Buyer requests a fapiao with specific line items, tax classification code (税收分类编码), and buyer information (name, tax ID / 统一社会信用代码, address, phone, bank account for general VAT taxpayers).
- Seller logs into the local e-tax bureau (电子税务局) portal using its digital certificate or authorised login.
- Seller drafts the invoice in the 数电票 module, selecting the appropriate invoice type (e.g., 增值税电子普通发票 / 增值税电子专用发票 under the new schema), filling in line items, amounts, and tax rates.
- STA system validates and assigns the invoice a unique number. There is no physical "cutting" of a stub.
- Invoice is delivered electronically to the buyer — typically via the buyer's own e-tax bureau inbox, or by sharing a verification link / digital certificate.
- Buyer verifies the invoice in their e-tax bureau to confirm authenticity before claiming input VAT or expensing.
- Archiving is done by both parties; the STA system retains the authoritative copy.
For an HK seller with no mainland tax registration, none of these steps happen on your side. They happen on your buyer's side, or on the side of your mainland entity or agent.
What an HK Seller Must Ask Their Mainland Counterparty
Before you ship goods, sign a service contract, or invoice a mainland buyer, confirm the following in writing:
- Who will issue the fapiao — and under what name? Is it your mainland subsidiary, your distributor, your agent, or the buyer themselves (for buy-side self-issued scenarios)? The name on the fapiao determines the VAT treatment.
- Which tax classification code applies to your product or service? Misclassification leads to rejected input VAT deductions for the buyer and disputes later.
- What information do they need from you to populate the invoice correctly? Typically: your contract name, the exact product/service description, unit price, quantity, and any applicable preferential tax rate (e.g., cross-border e-commerce retail).
- Is your counterparty set up to receive 数电票, or do they still require paper or legacy electronic formats? Pilot scope varies by region and industry [VERIFY your counterparty's region and industry eligibility].
- How will the invoice be delivered and verified, and what is the SLA? Late or unverified invoices block the buyer's month-end close.
- What supporting documents (contract, customs declaration for goods, settlement record for services) should accompany the fapiao for audit purposes?
- Who bears the cost if the invoice is issued incorrectly and must be voided or re-issued? In mainland practice, a red-letter information table (红字发票信息表) is required to correct errors.
Document the answers in your sales contract or a fapiao-handling annex. A surprising number of cross-border disputes trace back to assumptions about invoicing that were never written down.
Getting Your Cross-Border Books Right
数电票 makes the data more structured, but it also makes the bookkeeping obligations more rigorous. Line-item matching, tax classification, cross-border revenue recognition under HKFRS / IFRS, and PRC VAT reconciliation are now all interlinked.
CompanyForge is currently running an invite-only beta of its bookkeep product for companies operating across the HK–mainland border. Onboarding is concierge: a dedicated specialist works with your finance team to map your invoicing flows, reconcile 数电票 data, and keep your books consistent on both sides of the border. Capacity is limited and access is by waitlist.
If your HK business is selling into the mainland and wants a structured way to handle 数电票 alongside HK bookkeeping, join the waitlist here:
👉 https://companyforge.ai/bookkeep/
Put this guide into practice
Bookkeep is currently invite-only beta with concierge onboarding. Join the waitlist and we will map your entity structure before setup begins.
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