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香港 · 新加坡 CPA 事務所 · 加密客戶的年審與申報FOR HK & SG CPA FIRMS · CRYPTO CLIENTS, FILED PROPERLY
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把幾萬筆加密流水,
變成審計師認的底稿
Turn thousands of crypto transactions
into working papers auditors accept

客戶的幣散在交易所、錢包、託管,甚至橫跨香港與新加坡兩地,年審時只丟給你一堆 CSV?家辦 FIHV 申報、加密公司報稅——歸集、成本、證據鏈,一次理清。 客戶真名鎖在貴所手裡,平日全化名運作,出稿用印那一刻才解鎖。

HKICPA 已就穩定幣儲備鑑證發出 PN 831(2026 年 5 月,6 月修訂);審計師對加密資產普遍關注三件事——私鑰歸屬、鏈下交易遺漏、第三方證據可靠性。這三件事,就是 Signet 可以幫你補齊的。
Client assets scattered across exchanges, wallets and custodians, often across Hong Kong and Singapore — and at year-end all you get is a pile of CSVs? FIHV filings and crypto-company tax: aggregation, cost basis and the evidence chain, sorted in one place. Real names stay locked with your firm — pseudonymous day to day, unlocked only at the moment of sealing.

HKICPA has issued PN 831 on stablecoin reserve attestation (May 2026, revised June 2026); auditors consistently flag three things on digital assets — private key ownership, off-chain transactions missed, and the reliability of third-party evidence. Those three are exactly what Signet helps you close.
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info@signetfolio.com · 20 分鐘 · 示範數據演示info@signetfolio.com · 20 minutes · sample-data walkthrough
signetfolio —每一步都留痕,事後都查得到signetfolio —every step on the record
$ signetfolio --verify-chain
#0142 14:22:08 解密真實身份 FO-A7 · 用途:年度出稿 ⚠ 敏感 · 逐次留痕 hash 9f3ac2…
#0141 14:21:55 月結單批次入賬 ×3 · SHA-256 去重 ✓ 人為 hash 41d7e0…
#0140 09:00:02 每日歸集 · 場所對帳 6/7 · 差異 1 待核 ● 自動 hash c58b17…
✓ 鏈完整 — 142 條事件逐條重算,prev_hash 銜接無斷點
$ signetfolio --verify-chain
#0142 14:22:08 Decrypt real identity FO-A7 · purpose: annual filing ⚠ sensitive · logged hash 9f3ac2…
#0141 14:21:55 Statement batch posted ×3 · SHA-256 dedup ✓ manual hash 41d7e0…
#0140 09:00:02 Daily sync · venue reconciliation 6/7 · 1 diff open ● auto hash c58b17…
✓ chain intact — 142 events recomputed, prev_hash links unbroken

帳期裡最貴的是人時The costliest line item is staff hours

以一個 5 場所 + 3 錢包的加密家辦客戶為例——工作量估算,非客戶數據Estimated workload for a crypto family-office client with 5 venues and 3 wallets — illustrative, not client data
環節Task
手工流程Manual
用 SignetFolioWith SignetFolio
多場所流水歸集Multi-venue aggregation
逐所導出、Excel 拼表,每季 1–2 天Export & stitch by hand, 1–2 days a quarter
每日自動同步,零確認Synced daily, zero confirmations
場所對帳找差異Venue reconciliation
肉眼逐項比對,漏了年審才發現Eyeballed line by line, misses surface at audit
差異當日報警Differences flagged same day
轉倉成本基礎重算Cost basis across transfers
取得歷史易斷鏈,每次數小時Acquisition history breaks, hours each time
跨場所自動接力Carried across venues automatically
化名報表與底稿Reports & working papers
年審季集中趕工Crunch every audit season
隨時生成,分鐘級Generated in minutes, any time
省下來的時間,回到您擅長的事——職業判斷The hours saved go back to what you do best — professional judgement.
港 · 新 跨境HK · SG CROSS-BORDER

橫跨香港與新加坡,一條證據鏈One evidence chain across Hong Kong & Singapore

加密家辦與企業的資產,越來越常同時落在香港與新加坡——交易所、錢包、託管分處兩地。歸集、配對、成本基礎、證據鏈不分轄區,一個客戶檔案全部理清。Crypto family offices and companies increasingly hold across both Hong Kong and Singapore — venues, wallets and custodians split between the two. Aggregation, matching, cost basis and the evidence chain are jurisdiction-agnostic — one client file, sorted end to end.

點擊切換該地口徑 ↓Tap a city to switch its filings ↓

一台引擎,兩條線(香港)One engine, two service lines (HK)

歸集、配對、成本基礎完全共用——差別只在最後一層出什麼底稿Aggregation, matching and cost basis are fully shared — the lines differ only in the final working papers

家辦線 · 香港家辦(FIHV)Family office line · Hong Kong (FIHV)

香港家辦爭取的是那 0% 優惠稅率——先講清楚:0% 只覆蓋 Schedule 16C 資產,現行 16C 尚未納入數字資產,直接持幣現行無法條落點;2026 修訂案擬納入並追溯至 2025/26 年度,尚未三讀,一切以三讀通過版為準。我們替貴所理成一份審計師認、可複算、經得起稅局盤問的底稿——年審不趕工,家族真名平日全鎖著,出稿用印那一刻才解開。Hong Kong family offices are after the 0% concession — so let's be precise: it covers Schedule 16C assets only, and the current Schedule 16C does not yet include digital assets, so directly held crypto has no statutory 0% basis today. The 2026 amendment bill would add it, retroactive to 2025/26; it has not passed its third reading, and the enacted version governs. We turn that into papers auditors accept and that stand up to the IRD's questions — recomputable line by line. The family's real name stays sealed until the moment you issue the final report.

企業線 · 公司報稅Corporate line · company tax

香港的加密公司,年審、報稅一年一輪——加密資產的賬目,向來最難對平。我們把整年的買賣理成一份對得上、查得到的底稿:利得稅算得清清楚楚,稅務計算表直出 IRD 認的 iXBRL,CARF 時代交出去也經得起盤問。For crypto companies in Hong Kong, audit and profits-tax filing come round every year — and crypto is what refuses to reconcile. We turn a year of trades into reconciled, traceable papers: profits tax laid out clearly, and books that stand up to scrutiny in the CARF era.

四件事,做到審計等級Four things, done to audit grade

不是又一個組合追蹤器——是按會計師事務所的內控語言設計的工作底稿引擎Not another portfolio tracker — a working-paper engine designed in the language of a CPA firm's internal controls

身份保險箱Identity vault

家辦客戶最在意的,是名字和持倉連在一起。日常介面只見化名,真名鎖進保險箱,鑰匙只在貴所手裡。只有出帶真名的終版文檔時開一次鎖:開一次,記一筆。What family offices fear most is a name attached to a position. Day to day you see pseudonyms only; real names sit in a vault and only your firm holds the key. It unlocks once, to issue a named final document — and every unlock is on the record.

審計師問一句,答得出三句Every number can explain itself

每個數字都點得開:來自哪家交易所、哪份月結單、哪一批導入、成本怎麼一步步算出來。從申報欄位一鍵下鑽到原始 txid。審計實務的共識——私鑰在手不等於擁有資產。我們幫你把這句話變成底稿上的證據鏈。轉倉不斷成本,賬對不上當天就報警。Every figure opens up: which exchange, which statement, which batch, how the cost was built. One click from a tax return line to the original txid. The audit consensus is blunt — control of a private key does not by itself constitute ownership. We turn that sentence into an evidence chain. Transfers never break cost basis, and mismatches raise a flag the same day.

職責分離Segregation of duties

同事日常處理,敏感動作(解密真名、刪批次、改權限)必須主管過一道——如同用印。誰做的、誰批的,審計日誌一條條記著:出了問題,追得到人和那一步。Staff handle the day-to-day; sensitive actions (decrypting names, deleting batches, changing permissions) always go past a partner — like applying the firm's chop. Who did it, and who approved it, sits on the log line by line.

鏈上查得到,鏈下不漏掉On-chain, off-chain, nothing missed

審計實務早有共識:只查鏈上瀏覽器不夠。交易所內部賬本、託管月結單、OTC 場外交易——全在鏈下。我們把四類來源匯成一個客戶檔案,不靠人手逐條比對Audit practice is clear: blockchain explorers alone aren't enough. Exchange ledgers, custodian statements, OTC trades — all off-chain. We pull four source types into one client file. No manual line-by-line matching.

從接入到出稿From onboarding to sign-off

所有連接只能看、不能動客戶資產;客戶只給 Excel 也照收Every connection can look but never touch client assets; plain Excel is welcome too
01接入Connect交易所、錢包、月結單、Excel—接什麼都行,匯成一個檔案。Exchanges, wallets, statements, Excel—whatever the client hands you, one client file.
02每天自動理賬Books itself, daily自動同步、自動對帳,對不上當天提醒。Syncs and reconciles itself. Mismatches flagged the same day.
03化名報表Pseudonymous reports持倉、損益、成本底稿隨時出,全程化名。Holdings, P&L and cost working papers on demand, pseudonymous throughout.
04終版用印Final sealing出稿那一刻解鎖真名,蓋印留痕。修訂不覆蓋,舊版永遠留檔。Names unlock only at this moment. Sealed and logged. Revisions never overwrite.

資料接入,客戶自己來Data intake your clients handle themselves

一封邀請開一次門——客戶自行連入全部來源;每一條經貴所審批/核對才生效One invitation opens one door — clients connect all their own sources; every line takes effect only after your firm's approval
01一封邀請=開門One invite, one door邀請綁定客戶本人,客戶進門自報全部交易所、錢包、託管—同所多賬戶各自成條。The invite binds the client. They list every exchange, wallet and custodian themselves—multiple accounts per venue, each its own line.
02憑據不經貴所之手Credentials never pass through youAPI Key 客戶自填、直達加密庫,貴所全程只見指紋。錢包地址當場簽名留檔—審計師可獨立重驗。API keys go straight from client to encrypted vault—your firm only sees a fingerprint. Wallet addresses proven by signed message, archived for auditors to re-verify.
03每一條過貴所的關Every line passes your desk連接啟用前主管審批—系統先驗只讀權限與賬戶歸屬。客戶檔案先核後入,不符退回。入賬權永遠在貴所。Connections activate only after partner approval—the system checks read-only scope and account ownership. Client uploads reviewed before posting. The right to post stays with your firm.
04之後月月自助Self-serve, month after month常駐入口+驗證碼登入,每月自動提醒待上傳月結單。客戶可隨時解除連接—解除即停,貴所即知。A standing portal with one-time codes. Monthly reminders chase statements for you. Clients can disconnect anytime—sync stops instantly, your firm is notified at once.

會計師最常問的四件事The four questions accountants always ask

「出具的底稿,審計師認嗎?」"Will auditors accept the working papers?"

審計師認的從來不是軟件,是證據鏈。每個數字可追溯到來源檔案與批次,每條數據帶證據等級,終版文檔帶授權留痕——交出去的不是 App 截圖,而是完整的取數鏈路與底稿。What auditors accept is never the software — it's the evidence chain. Every figure traces to its source file and batch, every data point carries an evidence grade, and final documents carry the authorisation trail — what you hand over isn't an app screenshot, it's the full derivation.

「同事不懂 crypto,用得起來嗎?」"My staff don't know crypto — can they use it?"

介面說的是會計的語言——歸集、對帳、成本基礎、底稿,不是 DeFi 行話。日常同步全自動零確認,需要人的只有兩件事:核差異報警、按期出稿。20 分鐘演示就是完整的上手路徑。The interface speaks accounting, not DeFi jargon — aggregation, reconciliation, cost basis, working papers. Daily syncing runs itself; people are needed for exactly two things: reviewing difference alerts and issuing period-end documents. The 20-minute demo is the entire learning curve.

「客戶只給 Excel 怎麼辦?」"What if the client only gives us Excel?"

照收。多數家辦客戶只能給 CSV 或月結單 PDF——API 授權難開、歷史年度只剩結單。我們把這當默認路徑,不是降級處理。檔案去重、區間重疊先預覽後入賬、批次可回滾。底稿標注為「客戶自報」;日後補了 API,證據等級自動升級。審計師都懂這個差別。We take it. Statement import is a first-class citizen: file-hash dedup, overlap preview before posting, whole-batch rollback. The working papers tag that source as "client-reported"; add a read-only API later and it upgrades to "independently obtained" — a distinction every auditor understands.

「算錯了誰負責?」"Who is responsible if a number is wrong?"

分兩層。計算對不對,是我們的責任:每一步攤在陽光下——這枚 BTC 按 HKAS 38 無形資產成本模型計量、這筆處置按 FIFO 消耗特定批次、這個減值按 HKAS 36 年度測試。不是黑箱吐出一個數。若引擎出錯,版本快照能精確定位受影響的客戶與期間,修正重出、舊版留檔。判斷對不對,永遠由貴所定奪:分錄草稿過不過賬、口徑適不適用,是專業的事。Two layers. Whether the calculation is right is on us: the methodology is published, every step can be laid out and re-computed — working papers are not a black box. If the engine errs, version snapshots pinpoint the affected clients and periods, corrected papers are reissued, prior versions stay on file. Whether the judgement is right is always your firm's call: whether a draft entry posts, and whether a treatment applies, is professional territory.

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20 分鐘,看它跑一遍你們的年審流程Twenty minutes to watch it run your annual audit workflow

從只讀接入到出具帶真名終版底稿——用示範數據完整走一遍,再談貴所的實際場景。From read-only onboarding to issuing a named final working paper — a complete run on sample data, then we talk about your firm's actual scenarios.

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